• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    The present invention relates to an absorbent article including a frame and a laminate. the structure has a topsheet side, a backsheet side, and opposite first and second longitudinal edges extending from a posterior waist region to an opposite front waist region. the laminate includes a carrier having a first face and a second face and a fastening appliqué on a portion of the first face of the carrier. the laminate is wrapped around the first longitudinal edge of the frame in the back waist region so that the second face of the carrier contacts the top layer side and the bottom layer side of the frame. the fastening appliqué includes fasteners that are exposed on the top layer side of the frame. a method of producing the absorbent article is also described.
    公开号:BR112015011262B1
    申请号:R112015011262-5
    申请日:2013-11-15
    公开日:2021-08-17
    发明作者:Mark A. Peltier；Leigh E. Wood
    申请人:3M Innovative Properties Company；
    IPC主号:
    专利说明:

    BACKGROUND
    [001] Mechanical fasteners, which are also called hook and loop fasteners, are useful for providing removable fastening in numerous applications. For example, mechanical fasteners are widely used on absorbent wearable articles to secure such articles around a person's body. In typical configurations, a strap or hook portion on a fastening flap attached to the back waist portion of an incontinence diaper or garment, for example, can attach to a contact zone of the loop material in the waist region. anterior, or the strap or hook portion may be attached to the underlayer (eg, non-woven underlayer) of the diaper or incontinence garment in the anterior waist region. Absorbent articles often employ woven or non-woven materials, for example, to provide a cloth-like feel to increase comfort during use.
    [002] Fastening tabs often have a factory end that attaches to the back waist region of an absorbent article, and a user gripable end that extends outwardly beyond the edge of an article. absorbent before it is attached to the anterior waist region of the absorbent article. The tab attachment point at the factory end must be strong enough to withstand the force applied during application and use of the absorbent article; otherwise, the flap may separate from the absorbent article during use. So-called Y-glued attachment flaps are proposed, which have strong attachment to absorbent articles; see, for example, US Patent No. 3,848,594 (Buell).
    [003] In some cases, the attachment tabs include a substrate that is fully coated with adhesive. The factory end adhesive is used to permanently secure the securing tab to the edge of the absorbent article, and the wearer end adhesive is used to secure the fastening strip or portion to the securing tab. Adhesive exposed between the edge of the absorbent article and the strip or fastening portion can be handled by means of a release tape, for example, on a surface of the absorbent article that contacts the exposed adhesive while the absorbent article is in the packaging. SUMMARY
    [004] The present description presents an absorbent article including a frame and a laminate wrapped around an edge of the frame. Advantageously, the laminate can be readily fixed firmly to the frame, can reinforce at least a portion of the frame edge, can avoid problems with loosening, and can be used advantageously in the absence of the release tape.
    [005] In one aspect, the present description presents an absorbent article including a frame and a laminate. The structure has a topsheet side, a backsheet side, and opposite first and second longitudinal edges extending from a posterior waist region to an opposite front waist region. The laminate includes a carrier having a first face and a second face, and a fastening appliqué on a portion of the first face of the carrier. The laminate is wrapped around the first longitudinal edge of the frame in the back waist region such that the second face of the carrier contacts the topsheet side and the bottomsheet side of the frame. The fastening appliqué includes fasteners that are exposed on the top layer side of the frame.
    [006] In another aspect, the present description presents a method of producing an absorbent article. The method includes providing a framework and a laminate, wrapping the laminate around the first longitudinal edge of the framework in the back waist region, and securing the laminate to the framework. The structure has a topsheet side, a backsheet side, and opposite first and second longitudinal edges extending from a posterior waist region to an opposite front waist region. The laminate includes a carrier having a first face and a second face, and a fastening appliqué on a portion of the first face of the carrier. Winding the laminate around the frame is carried out so that the second face of the carrier contacts the top layer side and the bottom layer side of the frame with the fastening appliqué positioned so that the fastening elements are exposed on the side of the top layer of the structure. In some embodiments, the laminate is provided from a carrier mat cylinder that has a first face and a second face and a fastening strip on the first face of the carrier mat.
    [007] In this order:
    [008] Terms such as "a", "an", "a" and "o" are not only intended to refer to a single entity, but include the general class whose specific example can be used for illustration. The terms "a", "an", "a" and "o" are used interchangeably with the term "at least one".
    [009] The phrase "comprises at least one of" followed by a list refers to one that comprises any of the items in the list and any combination of two or more items in the list. The phrase "at least one of" followed by a list, refers to any one of the items in the list, or any combination of two or more items in the list.
    [010] The term "machine direction" (MD), as used herein, denotes the direction of a continuous mat in motion during the manufacture of the absorbent article described herein. In a cylinder, for example, which comprises a carrier mat and a fastening strap, the machine direction corresponds to the longitudinal direction of the cylinder. Consequently, the terms machine direction and longitudinal direction can be used interchangeably in the present invention. The term "cross-direction" (CD), as used herein, denotes direction that is essentially perpendicular to the machine direction. When a portion of the laminate described here is cut from a cylinder the cross-machine direction corresponds to the width of the cylinder.
    [011] The terms "first", "second", and "third" are used in this description. It should be understood that, except where otherwise specified, these terms are used only in their relative sense. For these components, the designations of "first", "second", and "third" may be applied to the components merely as a matter of convenience in describing one or more of the modalities.
    [012] All numeric ranges include their endpoints and non-integral values between endpoints, unless otherwise specified. BRIEF DESCRIPTION OF THE DRAWINGS
    [013] The description can be understood more fully by considering the following detailed description of the various modalities of the description together with the attached drawings.
    [014] Figure 1 is a schematic perspective view of one embodiment of an absorbent article, in accordance with the present description and/or produced according to a method of the present description.
    [015] Figure 1a is an example of a cross section taken through line 1a-1a in Figure 1.
    [016] Figure 2 is a perspective view of the absorbent article shown in Figure 1, showing how the absorbent article can be secured around a person's waist.
    [017] Figure 3 is a side view of an embodiment of a laminate included in an absorbent article, according to the present description.
    [018] Figure 4 is a schematic top view of an edge of another embodiment of an absorbent article, according to the present description and/or produced according to the method of the present description.
    [019] Figure 5 is a side view of an embodiment of a laminate useful for producing an absorbent article, according to the method of the present description. DETAILED DESCRIPTION
    [020] Absorbent articles in accordance with the present description include diapers and adult incontinence articles, for example. A schematic, perspective view of one embodiment of an absorbent article 10 in accordance with the present description and/or produced in accordance with a method of the present description is shown in Figure 1. The absorbent article 10 includes a structure 20 with a topsheet side 22 and a backsheet side 24. The chassis 20 also has opposite first and second longitudinal edges 26 and 28, which extend from a back waist region 32 to an opposite front waist region 34. The longitudinal direction of the absorbent article 10 refers to the direction extending between the back waist region 32 and the front waist region 34. Therefore, the term "longitudinal" refers to the length of the absorbent article 10, e.g. when it's in an open configuration.
    [021] At least one region of the front waist region 34 or the back waist region 32, more typically the back waist region 32, comprises at least one laminate 50. The laminate 50 includes a carrier 52 having a first face and a second face, which is more clearly shown in the cross-section shown in Figure 1a, and a fastening appliqué 54 on a portion of the first face of the carrier 52. The laminate 50 is wrapped around the first longitudinal edge 26 of the frame 20 in the back waist region 32 so that the second face of the carrier 52 contacts both the topsheet side 22 and the backsheet side 24 of frame 20. The fastening appliqué 54 is positioned so that the elements The attachment brackets 55 are exposed on the topsheet 22 side of the frame 20. The attachment bracket 54 does not extend beyond the first longitudinal edge 26 of the frame 20. However, in some embodiments, the attachment bracket does extend in addition to the first longitudinal edge 26 of the frame 20.
    [022] In absorbent articles, in accordance with the present description, and/or produced in accordance with the method of the present description, the topsheet is typically liquid permeable and designed to contact a user's skin and the layer The bottom, which faces outward, is typically impervious to liquids. Typically, there is an absorbent core disposed between the topsheet and the backsheet. Various materials may be useful for the topsheet, the backsheet, and the absorbent core in an absorbent article in accordance with the present disclosure. Examples of useful materials for topsheets include apertured plastic films, woven fabrics, non-woven mats, porous foams, and reticulated foams. In some embodiments, a topsheet is a non-woven material. Examples of suitable non-woven materials include mats produced by melt-blowing or continuous spinning of fiber-forming polymeric filaments (e.g., polyolefin, polyester, or polyamide filaments) and mats of carded filaments of natural polymers (e.g., fibers rayon or cotton) and/or synthetic polymers (eg polypropylene or polyester fibres). The non-woven mat can be surface treated with a surfactant or otherwise processed to impart the desired level of wettability and hydrophilic capacity. The bottom layer is sometimes referred to as the outer covering and is the layer furthest away from the wearer. The underlay works by preventing bodily exudates contained in the absorbent core from wetting or staining the wearer's clothing or bedding or other materials that come in contact with the diaper. The lower layer can be a thermoplastic film (eg a poly(ethylene) film). The thermoplastic film may be embossed and/or matte finished to provide a more aesthetically pleasing appearance. The backsheet may also include woven or non-woven fibrous batts, for example laminated to thermoplastic films or constructed or treated to impart a desired level of liquid impermeability, even in the absence of a thermoplastic film. Suitable underlays also include vapor- or gas-permeable microporous "breathable" materials that are substantially impermeable to liquids. Suitable absorbent cores include natural, synthetic or modified natural polymers which can absorb and retain liquids (for example aqueous liquids). Such polymers can be cross-linked (eg by physical cross-linking, crystalline domains, covalent bonds, ionic associations and complexes, hydrophilic associations such as hydrogen bonding, and hydrophobic associations or Van der Waals forces) to make them insoluble in water, however expandable. Such absorbent materials are usually designed to quickly absorb liquids and retain them, usually without release. Examples of suitable absorbent materials useful in absorbent articles disclosed in the present invention include wood pulp or other cellulosic materials and super absorbent polymers (SAP).
    [023] In some embodiments of the absorbent article and the method presented in the present invention, including the embodiment illustrated in Figure 1, the absorbent article 10 has ear portions in the posterior waist region 32 to which the laminates 50 are attached. For purposes of the present description, the ear portions are considered part of the structure 20. Absorbent articles (e.g., incontinence articles and diapers), in accordance with the present description, can have any desired shape, such as a rectangular shape, a format similar to the letter I, a format similar to the letter T, or an hourglass shape. The absorbent article may also be a "resealable pants" style diaper with laminate 50 along each longitudinal edge. In some embodiments, including the embodiment shown in Figure 1a, the topsheet and backsheet are secured together and together form the structure 20 to the first and second opposite longitudinal edges 26 and 28. That is, the layer top and bottom layer together form the ears shown in Figures 1 and 1a. In some embodiments, only one of the top layer and bottom layer extends to the first and second opposite longitudinal edges 26 and 28. In other embodiments, the structure may include separate side panels that are attached to the sandwich of at least the top layer , backsheet, and absorbent core during manufacture of the absorbent article, for example, to form ear portions. The side panels can be produced from a material that is the same as the top or bottom layer or they can be produced from a different material (e.g. a different non-woven). In these arrangements, the side panels also form part of the structure. In either of these embodiments, the absorbent article may comprise an elastic material 39 along at least a portion of first and second longitudinal side edges 26 and 28 to provide leg braces.
    [024] In the embodiment illustrated in Figure 1, there are two of the laminates 50 wrapped around the first longitudinal edge 26 of the structure 20 in the rear waist region 32 and two of the laminates 50 wrapped around the second longitudinal edge 28 of the structure 20 in the region of back waist 32. It may be advantageous to provide two laminates on each of the first and second longitudinal edges 26 and 28 if the absorbent article 10 is relatively large in size (for example, in an adult incontinence article), although this is not be a requirement. In some non-illustrated embodiments, there is a laminate 50 wrapped around the first longitudinal edge 26 of the frame 20 in the back waist region 32 and a laminate 50 wrapped around the second longitudinal edge 28 of the frame 20 in the back waist region 32.
    [025] Wrapping the laminate around the longitudinal edge of the frame creates a fold in the laminate. Fold refers to a position where the laminate is turned back such that two portions of the laminate lie side by side along opposite sides of the frame. However, it is not necessary to create the fold. In some embodiments of the absorbent article and method disclosed herein, including the embodiment illustrated in Figures 1 and 1a, laminate 50 is wrapped around frame 20 so that ply 51 is flush with first longitudinal edge 26 of frame 20. this configuration is advantageous for the reasons described in more detail below, it is not a requirement. There may be a gap between the edge of frame 20 and fold 51 of laminate 50. For example, fold 51 of laminate 50 can be 5 (in some embodiments, 4, 3, 2, or 1) millimeters from the edge of frame 20 In addition, the ply 51 of the laminate may be at an angle to the edge of the frame 20 (e.g., up to an angle of 45, 30, 20, or 10 degrees.)
    [026] When the absorbent article 10 shown in Figure 1 is used, the back waist region 32 can be wrapped around the wearer's body to overlap and fit with the front waist region 34, as shown in Figure 2. In this configuration , the attachment inserts 54 of the laminates 50 are facing the backsheet and thus are not visible in Figure 2. In some embodiments, the attachment inserts 54 may fit into a target area (not shown) comprising a fibrous material disposed in the lower layer of the anterior waist region 34. For example, loop tapes such as those described in US Patent No. 5,389,416 (Mody et al.), EP 0.341,993 (Gorman et al.) and EP 0.539,504 ( Becker et al.) can be applied to a target area to provide an exposed fibrous material. In other embodiments, the backsheet comprises a woven or non-woven fibrous layer that is capable of interacting with the fastening appliqué 54. Examples of such backsheets 24 are described, for example, in US Patent Nos. 6,190,758 (Stopper ) and 6,075,179 (McCormack et al.). In these embodiments, the fastening appliqués 54 of the laminates 50 may advantageously fit into any suitable location on the backsheet, which can be determined by the user's size and desired fit.
    [027] Now, referring to Figure 3, the laminate 50 includes a carrier 52 having a first face 52a and a second face 52b. A portion of the first face 52a of the carrier 52 is secured with a fastening appliqué 54. In the illustrated embodiment, the second face 52b of the carrier 52 is provided with a layer of adhesive 60. The carrier 52 may be continuous (i.e., without any orifice that passes through) or discontinuous (eg comprising perforations or pores that pass through). The carrier can comprise a variety of suitable materials including woven batts, non-woven batts (e.g., continuous spin batts, hydro-entangled batts, airlaid batts, meltblown batts, and batts of carded filaments), textiles, paper, plastic films (e.g. single-layer or multi-layer films, co-extruded films, laterally laminated films or films comprising foam layers), and combinations thereof. Any of these materials can be selected to be flexible enough to allow the carrier to be folded over the first longitudinal edge of the frame. In some embodiments, the carrier is a fibrous material (eg, a woven, non-woven, or woven material). In some embodiments, the carrier comprises a non-woven fabric. The term "non-woven" when referring to a carrier or mat means that it has a structure of individual fibers or strands that are interconnected, but not identifiable as in a knitted fabric. Nonwoven materials or mats can be formed from various processes such as blow spinning processes, continuous spinning processes, hydroentangling spinning processes, and carded filament matting processes. In some embodiments, the carrier comprises multiple layers of non-woven materials such as, for example, at least one layer of a melt-blown non-woven fabric and at least one layer of a continuous-spun non-woven fabric, or any other combination. Suitable for non-woven materials. For example, the carrier may be a multi-layer continuous spinning-fusion bonded-continuous spinning, continuous spinning-continuous spinning, or continuous spinning-continuous spinning-continuous spinning material. Or, the carrier can be a composite mat comprising a non-woven layer and a dense film layer (eg, a thermoplastic film layer).
    [028] Fibrous materials that can provide useful carriers can be produced from natural fibers (eg wood or cotton fibers), synthetic fibers (eg thermoplastic fibers), or a combination of natural and synthetic fibers. Exemplary materials for forming thermoplastic fibers include polyolefins (e.g. polyethylene copolymers, polypropylene, polybutylene, ethylene, propylene copolymers, butylene copolymers and copolymers and blends of these polymers), polyesters and polyamides. The fibers can also be multi-component fibers, for example, having a core of a thermoplastic material and a wrapper of another thermoplastic material. In some embodiments, one or more zones of the carrier may comprise one or more elastically extensible materials extending in at least one direction when a force is applied and returning to approximately its original dimensions after the force is removed. However, in some modalities, at least the portion of the carrier joined to the attachment appliqué is not extensible or has an elongation percentage of up to 10 (in some modalities, up to 9, 8, 7, 6, or 5) on the CD. In some embodiments, the carrier can be extendable but inelastic. In other words, the carrier can have an elongation of at least 5, 10, 15, 20, 25, 30, 40, or 50 percent, but substantially no recovery from elongation (for example, a recovery of up to 10 or 5 percent). Suitable extensible carriers may include non-wovens (eg, materials produced by continuous spinning, continuous spinning, meltblown, and continuous spinning, or carded non-braid processes). In some embodiments, the nonwoven can be a high elongation carded nonwoven (eg, HEC).
    [029] Useful carriers can be of any suitable weight or thickness as desired for a specific application. For a fibrous carrier, the weight can range, for example, from at least about 5, 8, 10, 20, 30, or 40 grams per square meter, to about 400, 200, 100, or 50 grams per square meter. . The carrier can have a thickness of up to about 5 mm, about 2 mm, or about 1 mm and/or at least about 0.1, about 0.2, or about 0.5 mm.
    [030] Again with reference to Figure 3, the fastener appliqué 54 on a portion of the first face 52a of the carrier 52, typically has vertical male fasteners 55 on a layer of substrate. The substrate layer and male attachment elements 55 are typically integral (i.e., formed at the same time as a unit, unitary). Clamping appliqués are typically produced from at least one thermoplastic material. Suitable thermoplastic materials for mechanical fasteners include polyolefin homopolymers such as polyethylene and polypropylene, copolymers of ethylene, propylene and/or butylene; ethylene-containing copolymers such as ethylene-vinyl acetate and ethylene acrylic acid; polyesters such as poly(ethylene terephthalate), polyethylene butyrate and polyethylene naphthalate; polyamides such as poly(hexamethylene adipamide); polyurethanes; polycarbonates; poly(vinyl alcohol); ketones such as polyether ether ketone; polyphenylene sulfide; and mixtures thereof. Typically, the thermoplastic is a polyolefin (eg, polyethylene, polypropylene, polybutylene, ethylene copolymers, propylene copolymers, butylene copolymers, and copolymers and blends of these materials).
    [031] Vertical male fasteners on a substrate layer can be produced, for example, by feeding a thermoplastic material to a mold surface that moves continuously, with cavities having the inverse shape of the columns. The thermoplastic material can pass between a choke formed by two cylinders or a choke between a die face and a cylinder surface, with at least one of the cylinders having the cavities. The cavities can be in the inverse shape of a finished column having a head that interconnects to a loop, or they can be in the inverse shape of a column without heads that interconnect to loops (eg, a precursor of a male fastener) . The pressure provided by the choke forces the resin into the cavities. In some embodiments, a vacuum can be used to evacuate the cavities to facilitate filling the cavities. The choke has a large enough span so that a coherent support is formed over the cavities. The mold surface and cavities can optionally be cooled by air or water before removing the integrally formed holder and vertical hook elements from the mold surface, such as by a peel roller. If the rods formed at the outlet of the cavities do not have heads that interconnect with a loop, the heads that interconnect with a loop can be subsequently formed into hooks by a capping method, as described in US Patent No. 5,077,870 (Melbye et al. .). Typically, the capping method includes deforming the tip portions of the hook elements using heat and/or pressure. Heat and pressure, if both are used, can be applied sequentially or simultaneously.
    [032] Suitable mold rolls include those formed from a series of plates defining a plurality of post-forming cavities around their periphery, such as those described, for example, in US Patent No. 4,775,310 (Fischer). Cavities can be formed in the plates by perforation or photoresist technology, for example. Other suitable tool rolls may include wire-wrapped rolls, which are disclosed along with their manufacturing methods, for example, in US Patent No. 6,190,594 (Gorman et al.). Another exemplary method for forming a thermoplastic support with vertical columns (rods) includes the use of a flexible mold mat that defines a matrix of cavities in the form of vertical columns, as described in US Patent No. 7,214,334 (Jens et al.). Still other useful methods for forming a thermoplastic support with vertical rods can be found in U.S. Patent Nos. 6,287,665 (Hammer), 7,198,743 (Tuma) and 6,627,133 (Tuma).
    [033] Another method to form a thermoplastic substrate layer with vertical male fixing elements is profile extrusion, which is described, for example, in US patent No. 4,894,060 (Nestegard). Typically, in this method a thermoplastic flow is passed through a shaped die edge (eg, cut by electrical discharge machining) to form a web that has ridges across the web. The ridges can then be sliced transversely at spaced locations along the length of the ridges to form protruding fasteners with a small separation caused by the cutting blade. The separation between the projecting fastening elements is then increased by stretching.
    [034] The male fasteners in the laminate fastening appliqué typically have tie-on heads that have a projection. The term "interconnecting(s) with loops", as used herein, is related to the ability of a male fastener to be mechanically fastened to a tie material. Suitable male fasteners with snare snap heads can be of any desired shape. For example, the male fastener can be shaped like a mushroom (eg, with a circular or oval head enlarged with respect to the shank), a hook, a palm tree, a nail, a T, or a J. Capacity of snare engagement of the male fasteners, can be determined and defined by the use of standard woven, non-woven, or woven material. A region of male fasteners with heads that interconnect with loops will provide, in combination with a loop material, at least one of a higher peel strength, a higher dynamic shear strength or a higher dynamic friction than the than in a region of headless columns that interconnect with loops. Typically, male fasteners having heads that interconnect with loops have a maximum thickness dimension (in any dimension normal to height) of up to about 1 (in some embodiments, 0.9, 0.8, 0.7 , 0.6, 0.5 or 0.45) mm.
    [035] The male fasteners in the laminate fastening appliqué can have a range of maximum usable heights (above the substrate layer) of up to 3mm, 1.5mm, 1mm, or 0.5mm and, in in some modalities, a minimum height of at least 0.05 mm, 0.1 mm, or 0.2 mm. Vertical columns have a variety of aspect ratios (that is, a height-to-width ratio at the widest point) such as at least about 2:1, 3:1, or 4:1. Advantageously, a variety of densities of the vertical fasteners can be useful. For example, male fasteners have a density of at least 248 per square centimeter (cm2) (1600 per square inch, inch2) and up to 1500/cm2 (10000/in2), 1240/cm2 (8000/in2) , or 852/cm2 (5500/in2). For example, the density of the male fasteners can be in a range from 271/cm2 (1750/in2) to about 852/cm2 (5500/in2) or from 248/cm2 (1600/in2) to 542/cm2 ( 3500/in2). The spacing of the male fasteners does not need to be uniform.
    [036] For laminate included in absorbent articles, in accordance with the present description, and/or produced in accordance with the method of the present description, the fastening appliqué 54 is on a portion of the first face of the carrier 52 as shown, for example , in Figure 3. Attachment appliqué 54 can be joined to carrier 52, for example, by means of lamination (e.g., extrusion lamination), adhesives (e.g., pressure sensitive adhesives (ASPs), hot melt adhesives, or structural adhesives), or other bonding methods (e.g., ultrasonic bonding, heat-welding, compression bonding, or surface bonding).
    [037] In some modalities the fixing appliqué is joined to the carrier with the use of surface bonding or retention techniques of "filling thickness" (loft-retaining). The term "surface bonded" when referring to the bonding of fibrous materials means that portions of fiber surfaces, at least portions of fibers, are bonded by fusion to the substrate layer of the fastening appliqué, on a side opposite the elements of male attachment, such as to substantially preserve the original (pre-join) shape of the surface of the substrate layer and substantially preserve at least some portions of the surface of the substrate layer in an exposed condition in the area joined by the surface. Quantitatively, surface bonded fibers can be distinguished from embedded fibers in that at least about 65% of the surface area of the surface bonded fiber is visible above the support in the bonded portion of the fiber. Inspection from more than one angle may be necessary to view the entire surface area of the fiber. The term "loft-thickness retention bonding" when referring to bonding of fibrous materials means a bonded fibrous material comprising a fill thickness that is at least 80% of the fill thickness exhibited by the material prior to , or in the absence of the binding process. The fill thickness of a fibrous material, for use in the present invention, is the ratio between the total volume occupied by the mat (including fibers as well as interstitial spaces in the material that are not occupied by the fibers) and the volume occupied only by the material of the mat. fibers. If only a portion of a fibrous batt has the surface of the substrate layer bonded to it, the maintained infill thickness can easily be determined by comparing the infill thickness of the fibrous batt in the bonded area with that of the batt in an unattended area. turned on. It may be convenient, in some circumstances, to compare the fill thickness of the bonded batt with that of a sample of the same batt prior to bonding. In some of these embodiments, attaching the fastening appliqué to a fibrous carrier comprises impinging heated gaseous fluid (e.g., ambient air, dehumidified air, nitrogen, an inert gas or other gas mixture) to a first surface of the fibrous mat carrier while he is moving; impinging heated fluid onto the second surface of the substrate layer while the continuous web is moving, wherein the second surface is opposite the male fasteners; and contacting the first surface of the fibrous batt with the second surface of the support such that the first surface of the fibrous batt is melt bonded (e.g. surface bonded or bonded with a bond that retains the fill thickness) to the second surface of the support. Colliding the heated gaseous fluid onto the first surface of the fibrous mat and impinging the heated gaseous fluid onto the second surface of the support, which can be performed sequentially or simultaneously. Additional methods and apparatus for joining a continuous mat to a fibrous carrier mat using heated gaseous fluid can be found in US Patent Application Nos. 2011/0151171 (Biegler et al.) and 2011/0147475 (Biegler et al.) .
    [038] For any of the modalities of the absorbent article, according to the present description, or method of producing an absorbent article, according to the present description, including modalities that incorporate a laminate, as shown in Figure 4, the appliqué of attachment may include apertures 57. Figure 4 illustrates an exploded view of laminate 50a wrapped around the first longitudinal edge 26 of an absorbent article. Apertures 57 in fixture 54a may be in the form of a repeating pattern of geometric shapes, such as polygons. Polygons can be, for example, hexagons or quadrilaterals such as parallelograms or diamonds. Apertures 57 may be formed in fixture 54a by any suitable method, including die punching. In some embodiments, the openings can be formed by slitting the thermoplastic substrate layer of an attachment insert 54a to form multiple strands 56 secured together in intact bonding regions 58 in the substrate layer, separating at least some of the multiple strands 56 56 between at least some of the bonding regions 58. The bonding regions 58 are regions where there is no cut through the substrate layer, and at least a portion of the bonding regions can be considered collinear with the slits. The intact bonding regions 58 of the substrate layer serve to divide the slits into a series of spaced apart slit portions aligned in the slit cutting direction (e.g., in the machine direction), which may be called slits. interrupted. In some embodiments, for at least some adjacent interrupted slots, the spaced apart portions of slots are offset in a direction transverse to the direction of cutting the slots (e.g., the cross-machine direction). Interrupted slits can be cut in the substrate layer between a few pairs of adjacent rows of male fasteners 55, although this is not a requirement. In some modalities, curved lines may be used, resulting in crescent-shaped openings after scattering. There may be more than one repeating pattern of geometrically shaped openings. The openings can be evenly spaced or non-uniformly spaced as desired. For openings that are evenly spaced, the spacing between the openings can be different by up to 10, 5, 2.5, or 1 percent. Additional details on the provision of openings in a mechanical fastener can be found in U.S. order publication No. 2012/0204383 (Wood et al.). In some embodiments, the attachment appliqué may comprise multiple strands 56 secured together at intact bonding regions 58 in the substrate layer, without spreading the strands to create openings. Interrupted slits can be produced in the longitudinal direction of the absorbent article or in a transverse direction. Such slits can improve the flexibility of the clamping appliqué, improving peeling performance. Additional details on the provision of interrupted cracks in a mechanical fastener can be found in U.S. order publication No. 2011/0313389 (Wood et al.).
    [039] The laminate may include more than one fixing appliqué. In some embodiments, the laminate comprises a second appliqué securing a second portion of the first face of the carrier. The second fixture and first fixture can be contiguous, or they can be separated by a distance that is usually less than the length of each fixture (ie, in the direction of the longest dimension of the carrier). The first and second fixture appliqués can be the same size or they can be different sizes in length or width dimension. An example of a suitable configuration of two fastening appliqués is described in International Patent Application Publication No. WO 2011/163020 (Hauschildt et al.).
    [040] In some embodiments where the fastening appliqué includes openings 57 (e.g., diamond or hexagon shaped openings), including the embodiment illustrated in Figure 4, carrier 52 does not include openings. In some embodiments, fastening appliqué 54a is bonded to carrier 52 with adhesive to form laminate 50a, and adhesive is exposed at openings 57. In some embodiments, the adhesive is a pressure-sensitive adhesive. However, in other embodiments, the pressure sensitive adhesive is not exposed at the openings.
    [041] In any of the embodiments of laminate 50 included in the absorbent article, according to the present description or produced by a method, according to the present description, the fastening appliqué 54 is situated in a portion on the first face of the carrier 52. The portion may include any part of the carrier other than the whole. The portion may include the edge 52c of the carrier 52, as shown in Figure 3. Or, the fixture may be offset relative to the edge of the carrier, as shown in Figure 5. The fixture is typically positioned closer to one end of the carrier 52c than the other 52d, as shown in Figure 3, and the end 52d of the carrier opposite the end 52c, which includes the fastening appliqué, is wrapped around the edge of the frame so that it is on the side. opposite of the frame as the fixture as shown in Figure 2. The fixture can be up to 4/5 or 2/3 of the length of the carrier, which is the longest dimension of the carrier. The attachment appliqué can have a length that is at least 1/4 or 1/3 the length of the carrier. In the width direction, the fixing appliqué can be the same size as the carrier, or the fixing appliqué can be smaller in width than the carrier. In some embodiments, the width of the fastening appliqué is at least 1/2 or 3/4 of the carrier width.
    [042] The size of the carrier and laminate can be such that it is suitable for the desired size of the absorbent article. In some embodiments, for example where the laminate is useful for an adult incontinence article, the carrier has a length in a range of 50mm to 80mm and a width in a range of 15mm to 40mm. In some of these arrangements, the carrier has a length in a range of 55 mm to 70 mm and a width in a range of 25 mm to 30 mm. In some embodiments, where laminate is useful for a baby diaper, the carrier has a length in a range of 25mm to 60mm and a width in a range of 10mm to 30mm.
    [043] In the absorbent article, according to the present description and/or produced according to the method of the present description, the laminate is fixed to the structure. Referring again to Figure 1a, laminate 50 can be secured to frame 20 using any suitable method. For example, adhesives (eg pressure sensitive adhesives, hot melt adhesives or structural adhesives), non-adhesive bonding (eg ultrasonic bonding, heat welding, compression bonding, or surface bonding as described above), or a combination of any of these methods can be useful. In Figure 1a, laminate 50 is secured to frame 20 using adhesive 60.
    [044] For the method of producing an absorbent article in accordance with the present description, it may be useful to conveniently provide a continuous mat of a plurality of structures, including the absorbent core disposed between a top layer and the bottom layer. The structure in the continuous mat can be of any shape or construction, as described above in connection with Figure 1. In some embodiments, the laminate is also provided as a continuous mat. For example, the laminate may be supplied from a carrier mat cylinder having a first face and a second face and a fastening strip on the first face of the trailing mat. The carrier mat and fastening strip can be produced from any of the materials described above for the carrier and fastening appliqué, respectively. The cylinder can be unrolled to provide a plurality of laminates. In some embodiments, the cylinder includes perforations through the thickness of the attachment strip and carrier mat or other lines of weakness (e.g., partial depth cut, or tapered portion of the carrier mat and/or attachment strip), which allow a plurality of individual laminates are separated from the cylinder. Such lines of weakness can be in the transverse direction of the cylinder. In other embodiments, the method further includes splitting the cylinder after unwinding to provide a plurality of laminates.
    [045] In some embodiments, the cylinder or continuous mat useful for providing the laminate includes a fastening strip provided in a central portion of the carrier mat, such that the first face of the carrier mat is exposed on each side of the fastening strip . A cross-section or side view of such a cylinder is shown in Figure 5. Attachment strip 540 is shown in the central portion of laminated cylinder 500. The carrier mat is exposed at 520a and 520b, on one side or the other of the attachment strip. In addition to the lines of weakness in the transverse direction, as described above, which may allow individual laminates to be separated from the cylinder, the laminate cylinder 500 may include a line of weakness represented by the line 525 in the central portion of the cylinder. In this way, laminate cylinder 500 can be considered a "two-up" cylinder. Laminates for attachment along the first and second opposite longitudinal edges of the frame can be supplied from the same laminate roll 500 in this embodiment. Other "two-up" cylinder configurations are also possible.
    [046] In many embodiments, the continuous roll or mat useful to provide the laminate does not include exposed adhesive. Consequently, the cylinder can be stable for flat or planetary rolled storage. A continuous blanket of laminates can also be scalloped if desired.
    [047] Advantageously, laminates useful for absorbent articles, in accordance with the present description, can be handled with conventional equipment for manufacturing diapers or articles for incontinence. For example, laminates are supplied and fed into a continuous mat from a plurality of structures by one or more rotary vacuum applicators. A laminated cylinder can be cut with a pinch and anvil cutting knife. In addition, a paddle wheel apparatus can be used when a laminated cylinder is extruded through a scissors-cut window knife by means of a rotating floating knife. Conventional manufacturing equipment for absorbent articles additionally includes in-line glue capability, as well as ultrasonic or thermosealing equipment, any of which may be useful, alone or in combination, to secure the laminate to the structure. At the absorbent article manufacturing site, adhesive 60 may be applied to the second face of carrier 52, as shown in Figure 3, and the laminate may then be wrapped around and secured to the first longitudinal edge of the frame. Although sticker 60 is shown extending to ends 52c and 52d of carrier 52, this is not a requirement. It may be advantageous to coat adhesive 60 over carrier 52 so that adhesive 60 does not extend to ends 52a and 52b to avoid any exposed adhesive on the absorbent article.
    [048] In other embodiments of the method of production of an absorbent article disclosed in the present invention, the laminate can be provided, either in roll form or in individual laminate form, with coated adhesive on the second face 52b of the carrier 52. embodiments, the laminate may include a release liner, which can be removed to secure the laminate to the frame. In these embodiments too, the adhesive need not extend to the ends 52c and 52d of the carrier.
    [049] Absorbent articles, in accordance with and/or produced in accordance with the method of the present description, have several advantages over absorbent articles that have fastening tabs with a fastening appliqué that is situated away from the center of the longitudinal edge of the structure of the absorbent article. For example, in embodiments where the ply of the laminate is flush with the longitudinal edge of the frame or 5 (in some embodiments 4, 3, 2, or 1) mm from the edge of the frame 20, the absorbent article, in accordance with the present description does not address the loosening problems that can occur with absorbent articles that have fastening tabs that can open during manufacture or packaging. In addition, the absorbent articles described herein typically do not require a release tape as, in most embodiments, there is no exposed adhesive on the carrier. Eliminating the release tape can reduce the cost of the absorbent article and reduce stiffness in the waist area, which can increase wearer comfort and reduce the formation of red marks. The laminate carrier wrapped around the edge of the frame can provide strength to that portion of the frame, specifically in embodiments where the material at the longitudinal edges of the frame is very thin. Furthermore, as the absorbent article, in accordance with the present description and/or produced according to the method described herein, does not have fastening tabs which are typically folded and do not need to be opened by the user before use, the absorbent articles are easy. to open and fasten around the body.
    [050] Furthermore, the method of producing an absorbent article in accordance with the present description has advantages over a method in which a fastening appliqué is directly attached to the diaper structure, for example, on the side of the topsheet. During the manufacture of absorbent articles, a mat of a plurality of diaper structures is usually held in tension. If a hold-down appliqué has been attached to the blanket with the blanket under tension, the hold-down appliqué may curl when the diaper frame blanket is cut and the tension is released. In the method, according to the present description, the carrier on both sides of the structure can prevent such undulation. Furthermore, the direct placement of a fastening appliqué on the upper layer would require the reconfiguration of the equipment in a manufacturing line, since the fixing appliqué would be applied from the side of the top layer and not from the side of the bottom layer. In the method according to the present description, the laminate could still be applied to the side of the lower layer as in current manufacturing processes and then be wrapped around the edge of the structure. SOME MODALITIES OF THE INVENTION
    [051] In a first embodiment, the present description presents an absorbent article comprising: a structure with one side of the topsheet, one side of the undersheet, and first and second opposite longitudinal edges extending from a posterior waist region to an opposite anterior waist region; and one laminate comprising a carrier having a first face and a second face and a fastening appliqué on a portion of the first face of the carrier, wherein the laminate is wrapped around the first longitudinal edge of the frame in the rear waist region so that the second face of the carrier contacts the topsheet side and the backsheet side of the frame, and wherein the fastening appliqué comprises fasteners which are exposed on the topsheet side of the structure.
    [052] In a second modality, this description presents the absorbent article of the first modality, in which the second face of the carrier is fixed to the structure with adhesive.
    [053] In a third embodiment, the present description presents the absorbent article of the first or second embodiment, in which the second face of the carrier is non-adhesive bonded to the structure.
    [054] In a fourth embodiment, the present description presents the absorbent article of any one of the first to the fourth embodiment, wherein the carrier comprises a non-woven.
    [055] In a fifth embodiment, the present description presents the absorbent article of any one of the first to the fourth embodiment, wherein the fastening appliqué includes openings.
    [056] In a sixth embodiment, the present description presents the absorbent article of any one of the first to fifth embodiments, wherein the fastening appliqué includes diamond or hexagon-shaped openings.
    [057] In a seventh embodiment, the present description presents the absorbent article of any one of the first to fourth embodiments, wherein the fastening appliqué comprises at least one slit therethrough, wherein the slit is interrupted by a region of union without slit in clamping insert.
    [058] In an eighth modality, the present description presents the absorbent article of any one of the first to the seventh modality, in which the laminate comprises a second appliqué fastening on a second part of the first face of the carrier.
    [059] In a ninth modality, this description presents the absorbent article of any one of the first to eighth modality, in which the carrier has a length located in a range from 50 mm to 80 mm and a width located in a range from 15 mm to 40 mm.
    [060] In a tenth modality, this description presents the absorbent article of any one of the first to ninth modality, in which there are two of the laminates wrapped around the first longitudinal edge of the structure in the posterior waist region.
    [061] In an eleventh modality, the present description presents the absorbent article of the tenth modality, in which there are two of the laminates wrapped around the second longitudinal edge of the structure in the posterior waist region.
    [062] In a twelfth embodiment, the present description presents the absorbent article of any one of the first to the eleventh embodiment, wherein the absorbent article is an article for adult incontinence.
    [063] In a thirteenth modality, the present description presents the absorbent article of any one of the first to the twelfth modality, in which a fold formed in the carriage, where the laminate is wrapped around the first longitudinal edge of the structure is aligned with the first longitudinal edge.
    [064] In a fourteenth modality, the present description presents the absorbent article of any one of the first to thirteenth modality, in which the fixing appliqué does not extend beyond the first longitudinal edge of the structure.
    [065] In a fifteenth modality, the present description presents the absorbent article of any one of the first to the thirteenth modality, in which the fixing appliqué extends beyond the first longitudinal edge of the structure.
    [066] In a sixteenth embodiment, the present disclosure provides a method of producing an absorbent article, wherein the method comprises: providing a structure having an upper layer side, a lower layer side, and first and second longitudinal edges opposites extending from a posterior waist region to an opposite anterior waist region; providing a laminate comprising a carrier having a first face and a second face and a fastening appliqué on a portion of the first face of the carrier; wrap the laminate around the first longitudinal edge of the frame in the rear waist region so that the second face of the carrier contacts the side of the top layer and the side of the bottom layer of the frame with the fastening appliqué positioned so that the fastening elements are exposed on the upper layer side of the structure; and attaching the laminate to the frame.
    [067] In a seventeenth modality, the present description provides the method of the sixteenth modality, in which the laminate is supplied from a cylinder of a carrier mat having a first face and a second face and a strip of fixing on the first face of the carrier mat.
    [068] In an eighteenth modality, the present description presents the method of the seventeenth modality, further comprising making cuts in the cylinder to provide a plurality of laminates.
    [069] In a nineteenth modality, the present description provides the method of the seventeenth modality, in which the cylinder includes lines of weakness through the carrier mat and fastening strip, wherein the lines of weakness connect a plurality of laminates to a to the other.
    [070] In a twentieth modality, the present description provides the method of the seventeenth modality, in which the fastening strip is provided in a central portion of the carrier mat, such that the first face of the carrier mat is exposed on each side of the strip of fixation.
    [071] In a twenty-first embodiment, the present description provides the method of the twenty-first embodiment, further comprising making cuts in the cylinder through the central portion and in the transverse direction, to provide a plurality of laminates.
    [072] In a twenty-second modality, the present description provides the method of the twentieth modality, in which the cylinder includes lines of weakness through the carrier mat and the fastening strip in the central portion and in the transverse direction, in which the lines of weakness connect a plurality of laminates to each other.
    [073] In a twenty-third modality, the present description presents the method of any one of the seventeenth to twenty-second modality, in which the cylinder is a planetary wound cylinder.
    [074] In a twenty-fourth modality, the present description presents the method of any one of the seventeenth to twenty-second modality, in which the cylinder is a level wound cylinder.
    [075] In a twenty-fifth modality, the present description presents the method of any one of the seventeenth to the twentieth modality, in which the fastening strip includes a pattern of openings.
    [076] In a twenty-sixth modality, this description presents the method of the twenty-fifth modality, in which the openings are diamond-shaped or hexagon-shaped openings.
    [077] In a twenty-seventh modality, the present description presents the method of any one of the seventeenth to the twenty-fourth modality, in which the fastening strip comprises at least one slit through it, in which the slit is interrupted by regions of slit-free connection on the clamping strap to leave the clamping strap intact.
    [078] In a twenty-eighth modality, the present description presents the method of any one of the seventeenth to the twenty-seventh modality, in which the cylinder comprises a second fastening strip on the first face of the carrier mat.
    [079] In a twenty-ninth modality, this description presents the method of any one from the sixteenth to the twenty-eighth modality, in which fixing comprises adhesively bonding the second face of the carrier to the structure.
    [080] In a thirtieth modality, the present description presents the method of any one of the sixteenth to the twenty-ninth modality, in which fixing comprises non-adhesive bonding the second face of the carrier to the structure.
    [081] In a thirty-first modality, the present description presents the method of any one of the sixteenth to the thirty-first modality, in which the carrier mat comprises a non-woven.
    [082] In a thirty-second modality, the present description presents the method any one of the sixteenth to the thirty-first modality, further comprising wrapping a second laminate around the first longitudinal edge of the structure in the posterior waist region and securing the second laminate the structure.
    [083] In a thirty-third modality, the present description presents the method of the thirty-second modality, further comprising wrapping the third and fourth laminates around the second longitudinal edge of the structure in the posterior waist region and securing the third and fourth laminates the structure.
    [084] In a thirty-fourth modality, the present description presents the method of any one of the sixteenth to thirty-third modality, wherein the absorbent article is an article for adult incontinence.
    [085] In a thirty-fifth modality, the present description presents the method of any one of the sixteenth to the thirty-fourth modality, in which a fold formed in the carrier where the laminate is wrapped around the first longitudinal edge of the structure, is aligned with the first longitudinal edge.
    [086] In a thirty-sixth modality, this description presents the method of any one of the sixteenth to thirty-fifth modality, in which the fixation appliqué does not extend beyond the first longitudinal edge of the structure.
    [087] In a thirty-seventh modality, the present description presents the method of any one of the sixteenth to thirty-fifth modality, in which the fixation appliqué extends beyond the first longitudinal edge of the structure.
    [088] It should be understood that this invention should not be unduly limited to the illustrative embodiments described herein.
    权利要求:
    Claims (14)
    [0001]
    1. ABSORBING ARTICLE (10), characterized in that it comprises: a structure (20) with an upper layer side (22), a lower layer side (24), and first and second opposite longitudinal edges (26, 28) extending therefrom. moving from a posterior waist region (32) to an opposite anterior waist region (34); and a laminate (50, 50a, 500) comprising a carrier (52) having a first face (52a) and a second face (52b) and a fastening appliqué (54, 54a) on a portion of the first face of the carrier (52 ), wherein the fixture (54, 54a) includes diamond or hexagon-shaped openings (57), or the fixture (54, 54a) comprises at least one slit therethrough, wherein the slit is interrupted by a connecting region (58) without slit in the fastening insert (54, 54a); and wherein the laminate (50, 50a, 500) is wrapped around the first longitudinal edge (26) of the frame (20) in the back waist region (32) so that the second face (52b) of the carrier (52) contacts the upper layer side (22) and the lower layer side (24) of the frame (20), and wherein the fastening appliqué (54, 54a) comprises fastening elements (55) which are exposed on the top layer (22) side of the frame (20).
    [0002]
    2. ABSORBENT ARTICLE (10), according to claim 1, characterized in that it is an article (10) for incontinence in adults.
    [0003]
    ABSORBING ARTICLE (10) according to any one of claims 1 to 2, characterized in that the carrier (52) comprises a non-woven fabric.
    [0004]
    4. ABSORBING ARTICLE (10), according to any one of claims 1 to 3, characterized in that the laminate (50, 50a, 500) comprises a second appliqué for fastening on a second portion of the first face (52a) of the carriage (52) .
    [0005]
    5. ABSORBING ARTICLE (10), according to any one of claims 1 to 4, characterized in that the fixing appliqué (54, 54a) does not extend beyond the first longitudinal edge (26) of the structure (20).
    [0006]
    6. ABSORBING ARTICLE (10), according to any one of claims 1 to 4, characterized in that the fixing appliqué (54, 54a) extends beyond the first longitudinal edge (26) of the structure (20).
    [0007]
    7. ABSORBING ARTICLE (10), according to any one of claims 1 to 6, characterized in that there are two of the laminates (50, 50a, 500) wound around the first longitudinal edge (26) of the structure (20) in the region of back waist (32) and two of the laminates wrapped (50, 50a, 500) around the second longitudinal edge (28) of frame (20) in the back waist region (34).
    [0008]
    8. ABSORBENT ARTICLE (10), according to any one of claims 1 to 7, characterized in that the second face (52b) of the carrier (52) is fixed to the structure (20) with adhesive (60).
    [0009]
    An absorbent article (10) according to any one of claims 1 to 7, characterized in that the second face (52b) of the carrier (52) is non-adhesive connected to the frame (20).
    [0010]
    10. METHOD FOR PRODUCING AN ABSORBENT ARTICLE (10) as defined in any one of claims 1 to 9, the method being characterized by comprising: providing the structure (20) having an upper layer side (22) a layer side lower (24), and opposite first and second longitudinal edges (26, 28) extending from a posterior waist region (32) to an opposite front waist region (34); providing the laminate (50, 50a, 500) comprising the carrier (52) having a first face (52a) and a second face (52b) and the fastening appliqué (54, 54a) on a portion of the first face of the carrier (52 ); wrap the laminate (50, 50a, 500) around the first longitudinal edge (26) of the frame (20) in the rear waist region (32) so that the second face (52b) of the carrier (52) contacts the the upper layer side (22) and the lower layer side (24) of the frame (20) with the fastening appliqué (54, 54a) positioned so that the fastening elements (55) are exposed on the top layer side (22) of the structure (20); and attaching the laminate (50, 50a, 500) to the frame (20).
    [0011]
    11. METHOD according to claim 10, characterized in that the laminate (50, 50a, 500) is provided from a roller of a carrier mat (500) having a first face and a second face and a fastening strip (540 ) on the first face of the carrier mat (500).
    [0012]
    12. METHOD according to claim 11, characterized in that the fastening strip (540) is provided in a central portion of the carrier mat (500), such that the first face of the carrier mat (500) is exposed on each side of the strip of attachment (540).
    [0013]
    13. METHOD according to any one of claims 11 to 12, characterized in that the cylinder includes lines of weakness (525) through the carrier mat (500) and the fastening strip (540), and in which the lines of weakness (525) ) connect together a plurality of laminates (50, 50a, 500).
    [0014]
    14. METHOD, according to any one of claims 11 to 13, characterized in that the cylinder is a level wound cylinder or a planetary wound cylinder.
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    同族专利:
    公开号 | 公开日
    JP2015534888A|2015-12-07|
    EP2919736B1|2017-08-16|
    US20140142533A1|2014-05-22|
    JP5996123B2|2016-09-21|
    EP2919736A1|2015-09-23|
    BR112015011262A2|2017-07-11|
    PL2919736T3|2018-01-31|
    ES2644720T3|2017-11-30|
    US9713558B2|2017-07-25|
    MX345369B|2017-01-27|
    CN104797227A|2015-07-22|
    MX2015006159A|2015-08-07|
    CN104797227B|2016-09-07|
    WO2014078710A1|2014-05-22|
    EP2919736A4|2016-06-29|
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    法律状态:
    2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-11-12| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-06-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-08-17| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/11/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/679,296|US9713558B2|2012-11-16|2012-11-16|Absorbent article including laminate and method of making the same|
    US13/679,296|2012-11-16|
    PCT/US2013/070385|WO2014078710A1|2012-11-16|2013-11-15|Absorbent article including laminate and method of making the same|
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