• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    assembly comprising a preform or plastic container and a removable closure. a container (1) and a screw-on closure (2) comprising a hollow body (11) and a neck finish (10) terminated by a wide mouth opening (100). said neck finish comprises a neck support ring (102) and a neck portion (101) extending between the wide mouth opening (100) and the neck support ring (102). the neck portion (101) comprises an upper portion (1010) and a reinforced lower portion (1011). the inner face (1011b) of the reinforced lower portion (1011) transitions to the inner face (1010b) of the upper portion along a transition step (1011c) in such a way that said reinforced lower portion (1011) is thicker than the upper portion (1010) at least in an upper portion of the reinforced lower portion (1011). the neck support ring (102) is below the removable closure (2).
    公开号:BR112015018253B1
    申请号:R112015018253-4
    申请日:2014-01-17
    公开日:2021-06-22
    发明作者:Sam Van Dijck；Steven Windelinckx；Natalia Matthieu；Alain Dessaint；Jan Deckers
    申请人:Plastipak Bawt S.À.R.L.；
    IPC主号:
    专利说明:

    technical field
    [0001] The present invention relates to an assembly comprising a wide mouth plastic preform or container having a reinforced neck finish and a removable closure that can be threaded onto the wide mouth plastic preform or container . prior technique
    [0002] Plastic containers, more specifically polyester and even more specifically Poly(ethylene terephthalate) (PET) containers are now being used more than ever to pack numerous goods previously supplied in glass containers. Manufacturers and fillers, as well as consumers, have recognized that PET containers are lightweight, recyclable and can be easily manufactured in large quantities.
    [0003] PET is a crystallizable polymer, meaning that it is available in an amorphous form or a semi-crystalline form. The ability of a PET container to maintain its material integrity relates to the percentage of the PET container in crystalline form, also known as the “crystallinity” of the PET container.
    [0004] Mechanical processing involves orienting the amorphous material to achieve stress hardening. This processing commonly involves stretching an injection molded PET preform along a longitudinal axis and expanding the PET preform along a transverse or radial geometric axis to form a PET container. The combination promotes what manufacturers define as the biaxial orientation of the molecular structure in the container.
    [0005] More particularly, a well-known technique for manufacturing a thermoplastic container is the so-called injection stretch blow molding technique, where (first step) a thermoplastic material is injected into a mold to form a preform (semi-finished product ), and subsequently (second step) said preform is biaxially stretched to form a rigid hollow container of any kind of shapes and sizes, such as a bottle-shaped container, a pot, etc.
    [0006] Typically, a preform comprises a neck finish, a closed lower end, and a main tubular body extending between said closed bottom and said neck finish. Said neck finish comprises a cylindrical wall terminated by a mouth opening and an outer neck support ring surrounding the cylindrical wall. When the preform is blow molded in a mold, the neck finish is used to hold the preform in the blow mold, and therefore is not stretched. The main tubular body is stretched biaxially (in a longitudinal direction and in a radial direction) to form a predefined shaped container body. The closed bottom end of the preform is also biaxially stretched, but with a normal radial stretch ratio and a low longitudinal stretch ratio, to typically form the bottom base of the final blow molded container.
    [0007] Depending on the injection step, the preform body and the closed bottom end of the preform can have a monolayer structure or a multilayer structure (for example if a sequential injection and/or coinjection step is performed) .
    [0008] In a so-called “one-stage process”, the second step (stretch blow molding) is performed in-line immediately after the first step (preform injection). In a so-called “two-stage process”, the second step (stretch blow molding), and a reheat of the preform are performed before the stretch blow molding operation.
    [0009] In a first well-known stretch-blow molding process, the mouth opening of the neck finish is hermetically closed, and a draw rod is inserted into the preheated preform and is used for axial and axial stretching. to introduce pressurized blow air into the preform via a nozzle, to biaxially stretch the preform into a mold and to form a rigid plastic container. In such a well-known blowing process, the pressure inside the preform is high and such high pressure can lead to deformation of the neck finish.
    [00010] To reduce the risk of deformation of the neck finish, especially for preforms with a thin wall neck finish, a second well-known blowing process, called the "isobaric process" or "isobaric blowing", is preferred . In the so-called isobaric process, the opening of the mouth of the preform is not hermetically closed but a blow nozzle head is fitted over the neck finish of the preform in such a way as to close the preform producing a seal between the blow nozzle head and the upper side of the preform neck support ring or top surface of the blow mold.
    [00011] Thermal processing involves heating the material (either amorphous or semi-crystalline) to promote the growth of crystals. In amorphous material, thermal processing of PET material results in a spherulitic morphology that interferes with light transmission. In other words, the resulting crystalline material is generally opaque. Used after mechanical processing, however, thermal processing can result in higher crystallinity and excellent clarity for those portions of the container having biaxial molecular orientation. Thermal processing of an oriented PET container, which is known as thermal deformation, typically includes blow molding a PET preform against a mold heated to a temperature of approximately 121°C-177°C, and holding the container blown. against the heated mold for approximately one to five seconds.
    [00012] Thermal processing is also commonly used to promote crystal growth in the neck finish of the preform or container and to obtain a crystallized neck finish, which is generally opaque and white in the case of uncolored PET material. A crystallized neck finish has improved mechanical strength and is advantageously more difficult to deform. Crystallized neck finishes are, for example, commonly used in the hot fill field to produce hot fill containers, i.e. containers which are intended to be hot filled with a product, and for example with food such as beverages, juices , etc.
    [00013] Wide mouth plastic containers, such as for example jars or the like, are also commonly used to package a product, and especially a food product. Typically a wide mouth plastic container has a mouth opening having an internal diameter of at least 40 mm, and more generally at least 50 mm, in contrast for example to narrow mouth plastic containers, such as bottles, with an opening of mouth having a smaller internal diameter typically of less than 30 mm.
    [00014] Typically, the height of the neck finish portion of a PET wide mouth plastic container or preform above the neck support ring is generally not less than 15 mm. In some applications, however, and for example when the neck finish is an opaque crystallized neck finish, and/or when the wide mouth plastic container is closed by a small height lid such as a metal lid, this hair height minus 15mm is not acceptable to the end consumer, because the visual clearance between the neck support ring and a closure fitted over the neck finish is too high and not aesthetic, and gives the consumer the feeling that the container is not properly closed.
    [00015] There is therefore a need to reduce the height of this neck finish portion above the neck support ring. Unfortunately, and against all expectations, reducing the height of the neck finish above the neck support ring of a wide mouth plastic container or preform surprisingly makes the neck finish more easily deformable under mechanical and/or thermal constraints. This higher deformability of such a wide mouth short neck finish can lead to harmful leakage problems when the container is hermetically sealed by a removable closure which is threaded onto the wide mouth container in such a way that a seal is achieved between the closure. and only an upper part of the container neck finish, without any sealing between the closure and the inner face of a lower part of the container neck finish. These leakage problems are even more important when the wide mouth container has not been hot filled and/or pasteurized. Purpose of the invention
    [00016] An object of the invention is to propose an assembly comprising a wide mouth plastic container or preform and a removable closure that can be threaded onto the wide mouth plastic preform or container, said plastic container or preform wide mouth having an improved neck finish that is more resistant to deformation. Invention Summary
    [00017] This objective is achieved by the set of claim 1 where the container or preform has a reinforced neck finish. Brief description of drawings
    [00018] Other features of the invention will appear more clearly on reading the following detailed description which is produced by way of non-exhaustive and non-limiting example, and with reference to the attached drawings, in which:
    [00019] Figure 1 shows an example of a wide-mouth plastic container of the invention;
    [00020] Figure 2 shows the container of figure 1 closed by a removable lid;
    [00021] Figure 3 is a cross-sectional view of a first variant of a neck finish;
    [00022] Figure 4 is a cross-sectional view of the neck finish of Figure 3 closed by a removable cap;
    [00023] Figure 5 is a cross-sectional view of a second variant of a neck finish;
    [00024] Figure 6 is a cross-sectional view of a third variant of a neck finish
    [00025] Figure 7 is a bottom view of the lid of figures 2 and 3;
    [00026] Figure 8 shows a discontinuous thread of a neck finish and a tongue of a cap during a cap closure twist;
    [00027] Figure 9 shows a discontinuous thread of a neck finish of a cap during a cap closure twist; and
    [00028] Figure 10 shows a wide-mouth plastic preform that can be used to produce a wide-mouthed container of the invention. Detailed Description
    [00029] Some preferred embodiments of the invention are discussed in detail below. Although specific configurations are discussed, it should be understood that this is for illustrative purposes only. A person skilled in the art will recognize that other container designs or container dimensions can be used without departing from the spirit and scope of the invention.
    [00030] Referring now to the drawings, Figure 1 illustrates a wide-mouth plastic container 1 having a central longitudinal axis 1a, and comprising a hollow body 11 (in dotted lines) terminated by a reinforced short neck finish 10.
    [00031] Within the scope of the invention, the hollow body 11 can have any size and shape.
    [00032] Within the scope of the invention, the wide-mouth plastic container 1 can be produced from any thermoplastic material. Among these thermoplastic materials, polyester resins are, however, the best candidates.
    [00033] More specifically, the polyester resins that are suitable to carry out the invention are those generally obtained by polycondensation of diols and dicarboxylic acids or esters thereof.
    [00034] Among the diols suitable for carrying out the invention, it may be mentioned: ethylene glycol, diethylene glycol, propylene glycol, 1,3-propanediol, 1,4-butanediol, 1,3-butanediol, 2,2-dimethylpropanediol, neopentyl glycol, 1,5-pentanediol, 1,2-hexanediol, 1,8-octanediol, 1,10-decanediol, 1,4-cyclohexanedimethanol, 1,5-cyclohexanedimethanol, 1,2-cyclohexanedimethanol, or mixtures thereof.
    [00035] Among the dicarboxylic acids suitable for carrying out the invention, it can be mentioned: terephthalic acid, isophthalic acid, orthophthalic acid, 2,5-naphthalene dicarboxylic acid, 2,6-naphthalene dicarboxylic acid, 1,3-naphthalene dicarboxylic acid , 2,7-naphthalene dicarboxylic acid, methyl terephthalic acid, 4,4'-diphenyldicarboxylic acid, 2,2'-diphenyldicarboxylic acid, 4,4'-diphenylether-dicarboxylic acid, 4,4'-diphenylmethanedicarboxylic acid, 4, 4'-diphenylsulfonedicarboxylic acid, 4,4'-diphenylisopropylenedicarboxylic acid, sulfo-5-isophthalic acid, oxalic acid, succinic acid, adipic acid, sebacic acid, azelaic acid, dodecanedicarboxylic acid, dimer acid, maleic acid, fumaric acid, and all aliphatic diacids, cyclohexane dicarboxylic acid. Dicarboxylic acids can be introduced into the polycondensation medium in an esterified form, for example via methoxy or via ethoxy.
    [00036] Preferred polyesters to carry out the invention are poly(ethylene terephthalate) (PET), homo or copolymers thereof, and mixtures thereof.
    [00037] Although the containers shown in the accompanying drawings are monolayer containers, the invention is, however, not limited to monolayer containers but also encompasses multilayer containers or containers made from a mixture of materials.
    [00038] The wide mouth plastic container 1 of figure 1 is an injection stretched blow molded container obtained for example from the plastic wide mouth preform P shown in figure 10. This preform P can be produced by well known injection molding technique. Within the scope of the invention, this preform P can be a monolayer preform or a multilayer preform or preforms produced from a mixture of materials.
    [00039] When this preform P is stretch-blow molded in a mold, the neck finish 10 is used to hold the preform in the blow mold, and therefore is not stretched. The body portion below the neck finish 10 is biaxially stretched in an axial direction and in a radial direction to form a container body 11 of greater volume.
    [00040] Within the scope of the invention, a "one-stage process" or a "two-stage process" may be used.
    [00041] The final shape and size of the container will depend on the blow mold being used and the stretch ratios that are practiced.
    [00042] Preferably, but not necessarily, at least the neck finish 10 of container 1 or preform P has been crystallized by heating and forms an opaque crystallized neck finish preferably having a crystallinity of at least 25%. This crystallization may also extend slightly below the neck finish 10. For example, when uncolored polyester is used, and in particular uncolored PET, the opaque crystallized neck finish 10 is white.
    [00043] Within the scope of the invention, the wide mouth container may be intended to be filled with a hot product at a temperature above room temperature (i.e. above 25°C), such as for example tomato sauce or similar, gelatin, jelly or preserves. The invention, however, is not limited to wide-mouth hot-fill containers.
    [00044] A first example of a reinforced neck finish 10 is shown in Figure 3. This neck finish 10 comprises an outer neck support ring 102, a neck portion 101 extending upwardly from the support ring 102 and terminated by a wide mouth opening 100 having a larger internal diameter DIN1.
    [00045] The neck portion 101 comprises an upper cylindrical portion 1010 and a reinforced lower portion 1011, which is thicker at least in the upper portion of the reinforced lower portion than the upper portion 1010. Said cylindrical upper portion 1010 extends between said wide mouth opening 100 and said gussetted lower portion 1011, and said gussetted lower portion 1011 extends from said upper portion 1010 downwardly to the neck support ring 102.
    [00046] The upper cylindrical portion 1010 is defined by an outer cylindrical face 1010a and an inner cylindrical face 1010b, both centered around the longitudinal axis 1a. Said upper cylindrical portion 1010 has a substantially constant wall thickness WT1.
    [00047] The radius R1 between the upper sealing surface 1010c of the upper portion and the outer cylindrical face 1010a, and the radius R2 between the upper sealing surface 1010c of the upper portion 1010 and the inner cylindrical face 1010b is not greater than 0.75 mm, preferably is not greater than 0.4 mm, and preferably is not less than 0.2 mm.
    [00048] The reinforced lower portion 1011 comprises an outer cylindrical face 1011a and an inner cylindrical face 1011b, both centered around the longitudinal axis 1a.
    [00049] More particularly, the neck support ring 102 protrudes outwardly beyond said outer face 1011a of the reinforced lower portion 1011.
    [00050] The inner face 1011b of the reinforced lower portion 1011 transitions to the inner face 1010b of the upper portion 1010 along a transition step 1011c. The joint between the upper end of this transition step 1011c and the inner face 1010b of the upper portion 1010 is concave and defines an inward transition radius R. The joint between the lower end of this transition step 1011c and the inner face 1011b of the portion reinforced bottom 1011 is convex and defines an outward transition radius R'. In this particular configuration, the transition step 1011c is formed by a flat wall inclined on the inner face 1011b.
    [00051] The thickness WT2 of said reinforced lower portion 1011, measured between the two outer and inner cylindrical faces 1011a and 1011b, is greater than the thickness WT1 of said upper portion 1010. Said thickness WT2 is equal to the thickness of said lower portion reinforcement 1011 measured at the lower end of transition step 1011c, and said thickness WT1 is equal to the thickness of said reinforced lower portion 1011 measured at the upper end of transition step 1011c.
    [00052] In the accompanying figures, the height of the neck portion 101 (above the neck support ring 102) is referred to as H. The height of the upper neck portion 1010 is referred to as H1. The height of the reinforced lower neck portion 1011 is referred to as H2; the height of the reinforced lower portion 1011 in the region of the transition step 1011c is referred to as H20; the height of the reinforced lower portion 1011 below the transition step 1011c is referred to as H21. The inner diameter of the neck portion 1011 is referred to as DIN2. The angle defined by transition step 1011c with the longitudinal axis 1a is referred to a.
    [00053] Figure 2 shows the container 1 of figure 1 capped with a removable closure 2 of small height h, which can be, for example, a metal lid. Figure 4 shows the neck finish 10 of figure 3 closed by the cap 2. Referring to this figure 4, when the cap 2 is fitted over the neck finish 10, the wide mouth opening 100 is hermetically closed by the cap 2 and the neck support ring 102 is not surrounded by the cap 2, but is below the cap 2, in such a way that the neck support ring 102 is accessible when the container 1 or preform P is closed, and can be used for example to handle the closed container or the closed preform.
    [00054] More specifically, the cap comprises an inner gasket 20 or the like, made of deformable material such as rubber or the like, which is in contact with the upper neck portion 1010 in such a way as to produce a tight seal between the cap 2 and an upper neck portion 1010 over the entire periphery of the wide mouth opening 100. The upper neck portion 1010 is dimensioned in such a way as to obtain a peripheral sealing zone between the neck finish 10 and a standard cap 2 available on the Marketplace.
    [00055] According to the invention, the reinforced lower neck portion 1011 allows to obtain a neck finishing portion 101, above the neck support ring 102, which can be closed by a standard cap 2, which can have a small height H, and which is advantageously less deformable than a comparative neck finish of the same height H but preferably having a constant smaller wall thickness WT1 above its entire height H.
    [00056] Referring to figures 1 and 4, the neck finish 10 is also provided with a discontinuous thread 12 comprising separate slanted thread portions 12a, and adapted to securely thread the cap 2 over the neck finish 10. Referring to Figures 1 and 4, the clearance between the lower end of each threaded portion 12a and the upper face of the neck support ring is referred to e1. Preferably, said clearance e1 is not greater than 2.0 mm.
    [00057] More specifically, with reference to figure 7, the cap 2 comprises several tabs 21 (four tabs in this particular example) that are adapted to cooperate with the thread portions 12a on the neck finish 10.
    [00058] More specifically, referring to figures 8 and 9, since the cap 2 is threaded onto the neck finish 10 of the container 1, the cap 2 can be twisted in one direction (figure 8/arrow C) to a closed position and can be twisted in the reverse direction (figure 9/arrow O) to an open position.
    [00059] During the twisting of the lid 2 from the open position to the closed position, each of said tabs 21 (figure 8) comes into contact and is guided by the lower edge of the threaded portion 12a in such a way that the lid 2 is forced by the pawls 21 and thread portions 12a to move axially and downwards (figure 8/arrow F), i.e. closer to the wide mouth opening 100. Referring to figure 4, when the cap 2 is in the closed position , the inner sealing material 20 of the cap 2 is in contact with and is locally deformed by the upper portion 1010 of the neck portion 101 which penetrates the sealing material 20. A tight seal is therefore achieved only between the upper sealing surface 1010c of this upper portion 1010 of the neck portion 101 and the cap 2. In contrast, there is no contact and no seal between the cap 2 and the inner face 1011b of the lower reinforced portion 1011 of the neck portion 101.
    [00060] During the twisting of the lid 2 from the closed position to the open position, each of said tabs 21 (figure 9) comes into contact and is guided by the upper edge of a threaded portion 12a in such a way that the lid 2 is forced by the pawls 21 and thread portions 12a to move axially away from the wide mouth opening 100 (figure 9/arrow G).
    [00061] The invention however is not limited to the use of a closure consisting of a lid 2 comprising such tabs 21, but encompasses any closure or removable lid that can be threaded over a neck finish, and particularly any closure or lid comprising for example a thread adapted to cooperate with a thread in the neck finish. Within the scope of the invention, the thread of the neck finish can be a discontinuous thread or a continuous thread.
    [00062] Referring to figures 2 and 4, when the height H of the neck portion 10 above the neck support ring 102 is sufficiently small, the clearance e between the lower edge of the cap 2 and the neck support ring 102 is also small, which improves the aesthetics of the closed neck finish, especially when the neck finish 10 is an opaque crystallized neck finish, and/or when the wide mouth plastic container is closed by a small height lid 2 h such as a metal lid. Such clearance is small and gives the consumer the feeling that the container is properly closed.
    [00063] Other examples of 10' and 10' neck finishes are shown in figures 5 and 6 respectively.
    [00064] In the variant of figure 5, the height H of the 10' neck finish is greater than the height H of the 10' neck finish of figure 3. This 10' neck finish of figure 5 is advantageously more resistant to deformation than the finish at neck 10, but when the neck finish 10' is closed by cap 2, the clearance e between the lower edge of a cap 2 and the neck support ring 102 is however greater.
    [00065] In the variant of figure 6, the height H21 of the reinforced lower portion 1011 of the 10" neck finish is greater than the height H21 of the reinforced lower portion 1011 of the neck finish 10 of figure 3, and the height H1 of the portion of top neck 1010 is very small, which advantageously allows to obtain a 10" neck finish that can have the same height H as the neck 10 finish of figure 3, but which is advantageously more resistant to deformation than the aforementioned neck 10 finish .
    [00066] The table below provides some examples of main dimensions for 10, 10' and 10” neck finishes produced from PET.Table: Examples of dimensions

    [00067] These dimensions are not, however, a limitation of the scope of the invention, and someone skilled in the art can easily practice other dimensions within the scope of the invention.
    [00068] In particular, but not necessarily, the whole of the invention can be advantageously characterized by the following additional and optional features, said additional and optional features being taken alone or in combination: - The transition step of the preform or plastic container is formed by a flat sloping wall.- The height H of the neck portion 101 is not greater than 15 mm. - Height H of neck portion 101 is not less than 13 mm.- DIN1 inner diameter of wide-mouth opening 100 is not less than 40 mm.- DIN1 inner diameter of wide-mouth opening 100 is not less than 50 mm.- The thickness WT2 of the lower reinforced portion 1011 measured at the lower end of the transition step 1011c is not less than 2.7 mm.- The thickness WT2 of the lower reinforced portion 1011 measured at the lower end of the transition step 1011c is not less than 4 mm.- The thickness WT1 of the upper portion 1010 measured at the upper end of the transition step 1011c is not less than 1.9 mm.- The thickness WT1 of the upper portion 1010 measured at the upper end of the transition step 1011c is not greater than 2.7 mm.- The difference between the thickness WT2 of the lower reinforced portion 1011 and the thickness WT1 of the upper portion 1010 is not less than 30% of the thickness WT1 of the upper portion 1010.- The height H1 of the upper portion 1010 is not greater than 3 mm.- The height H1 of the upper portion 1010 is not less than 0.4 mm.- The height H2 of the reinforced lower portion is not less than 9mm.- The height H2 of the reinforced lower portion is not greater than 12 mm.- The height H20 of the transition step 1011c is between 0 .4 mm and 0.8 mm.- The height H2 of the reinforced lower portion 1011 is not less than 75% of the height H of the neck portion 101.- The height H2 of the reinforced lower portion 101 is not less than 90% of the height H of the neck portion 101. - The angle α between the transition step 1011c and the longitudinal geometric axis 1a of the preform or container is between 10° and 90°, and is preferably around 55°.- The ratio DIN1 /H of the inside diameter DIN1 of the wide mouth opening 100 and the height H of the neck portion 101 is not less than 3, and preferably not less than 4.- Preform P or container 1 is made of a plastic material comprising a homo or copolyester.- Preform P or container 1 is made of a plastic material comprising a PET homo or copolymer. comprises slanted thread portions 12a. The clearance e1 between the neck support ring 102 and the lower end of each of said slanted thread portions 12a is not greater than 2.0 mm. The upper portion comprises a sealing surface upper, an outer cylindrical face, and an inner cylindrical face; the upper sealing surface transitions to the outer cylindrical face along a first radius R1 and the upper sealing surface transitions to the inner cylindrical face along a second radius R2; the first radius R1 and the second radius R2 is not greater than 0.75 mm and not less than 0.2 mm, and preferably is not greater than 0.4 mm. The neck finish is an opaque crystallized neck finish. - The container is an injection stretched blow molded container. - The closure comprises an internal gasket 20 comprising said deformable sealing material. - The closure comprises a metal cap 2. - The closure can be twisted in a direction (C) to a closed position and can be twisted in the reverse (O) direction to an open position; during the twisting of the closure from the open position to the closed position, the closure 2 is forced to move axially closer to the wide mouth opening 100; during the twisting of the closure from the closed position to the open position the closure is forced to move axially away from the wide mouth opening 100.- The removable closure 2 comprises tongues 21 adapted to cooperate with the thread 12 of the preform or container plastic in such a way that once the closure 2 is fitted over the neck finish of the plastic of the preform or container, the closure can be twisted in one direction (C) to a closed position and can be twisted in the reverse direction. (O) for an open position; during the torsion of closing from the open to the closed position each of said tabs 21 comes into contact with and is guided by the lower edge of a thread portion 12a in such a way that the closure is forced by the tabs 21 and portions of threads 12a moving axially closer to wide mouth opening 100; during the twisting of the closing from the closed position to the open position each of said pawls 21 comes into contact with and is guided by the upper edge of a thread portion 12a in such a way that the closure is forced by the pawls 21 and thread portions 12a moving axially away from the wide mouth opening 100.
    权利要求:
    Claims (17)
    [0001]
    1. Assembly comprising a plastic preform or container and a removable closure, which can be threaded onto the plastic preform or container, said plastic preform (P) or container (1) comprising a hollow body ( 11) and a neck finish (10; 10'; 10") terminated by a wide mouth opening (100), said neck finish comprising a neck support ring (102) and a neck portion (101) extending between the wide mouth opening (100) and the neck support ring (102), the neck portion (101) being provided with a thread (12) for threading the removable closure onto the neck portion (101 ), and comprises an upper portion (1010) and a stiffened lower portion (1011), said upper portion (1010) extending between said wide mouth opening (100) and said stiffened lower portion (1011) , wherein said reinforced lower portion (1011) extends between said upper portion (1010) and said ring 1 neck support (102), the inner face (1011b) of the reinforced lower portion (1011) transitioning to the inner face (1010b) of the upper portion (1010) along a transition step (1011c) of such that said reinforced lower portion (1011) is thicker than the upper portion (1010) at least in an upper portion of the reinforced lower portion (1011), and characterized in that the removable closure (2) comprises a material deformable sealant (20) and since the removable closure is being threaded onto the neck finish of the preform (P) or container (1), the neck support ring (102) is below the lower edge of the removable closure ( 2) and the upper portion (1010) of the neck portion (101) is in contact with the deformable sealing material (20) and a seal is achieved only between this upper portion (1010) of the neck portion (101) and the closure removable (2).
    [0002]
    2. Assembly according to claim 1, characterized in that the transition step of the preform or plastic container is formed by a flat inclined wall (1011c).
    [0003]
    3. Set according to any one of claims 1 or 2, characterized in that the height (H) of the neck portion (101) is less than or equal to 15 mm.
    [0004]
    4. Set according to any one of claims 1 to 3, characterized in that the internal diameter (DIN1) of the wide mouth opening (100) is greater than or equal to 40 mm.
    [0005]
    5. Assembly according to any one of claims 1 to 4, characterized in that the difference between the thickness (WT2) of the lower reinforced portion (1011) and the thickness (WT1) of the upper portion (1010) is greater than or equal to 30% of the thickness (WT1) of the upper portion (1010).
    [0006]
    6. Set according to any one of claims 1 to 5, characterized in that the height (H1) of the upper portion (1010) is greater than or equal to 0.4 mm.
    [0007]
    7. Set according to any one of claims 1 to 6, characterized in that the height (H2) of the reinforced lower portion is greater than or equal to 9 mm.
    [0008]
    8. Set according to any one of claims 1 to 7, characterized in that the height (H2) of the reinforced lower portion (1011) is greater than or equal to 75% of the height (H) of the neck portion ( 101).
    [0009]
    9. Set according to any one of claims 1 to 8, characterized in that the ratio (DIN1/H) of the internal diameter (DIN1) of the wide mouth opening (100) and the height (H) of the portion of neck (101) is greater than or equal to 3.
    [0010]
    10. Assembly according to claim 9, characterized in that the ratio (DIN1/H) of the internal diameter (DIN1) of the wide mouth opening (100) and the height (H) of the neck portion (101) is greater than or equal to 4.
    [0011]
    11. Set according to any one of claims 1 to 10, characterized in that the preform (P) or container (1) is produced from a plastic material comprising a homo or copolyester.
    [0012]
    12. Set according to any one of claims 1 to 11, characterized in that the neck finish (10; 10'; 10") is an opaque crystallized neck finish.
    [0013]
    13. Set according to any one of claims 1 to 12, characterized in that the container is an injection stretched blow molded container.
    [0014]
    14. Set according to any one of claims 1 to 13, characterized in that the closure (2) comprises an internal gasket (20) comprising said deformable sealing material.
    [0015]
    15. Set according to any one of claims 1 to 14, characterized in that the closure comprises a metal cover (2).
    [0016]
    16. Assembly according to any one of claims 1 to 15, characterized in that the closure (2) can be twisted in a direction (C) to a closed position and can be twisted in the reverse direction (O) to a open position, and being that during the torsion of the closing from the open to the closed position the closure (2) is forced to move axially closer to the wide mouth opening (100), and while during the twisting of the closing of the position closed to open position the closure is forced to move axially away from the wide mouth opening (100).
    [0017]
    17. Assembly according to any one of claims 1 to 16, characterized in that the removable closure (2) comprises tabs (21) adapted to cooperate with the thread (12) of the preform or plastic container in a manner such that once the closure is fitted over the neck finish (10; 10'; 10”) of the preform or plastic container, the closure can be twisted in one direction (C) to a closed position and can be twisted in the reverse direction (O) to an open position, and during the torsion of closing from the open position to the closed position each of said pawls (21) comes into contact and is guided by the lower edge of a thread portion (12a) in such a way that the closure is forced by the tongues (21) and thread portions (12a) to move axially closer to the wide mouth opening (100), and during the twisting of the closure from the closed position to the position open each of the aforementioned tabs (21) enter into touch and is guided by the upper edge of a thread portion (12a) in such a way that the closure is forced by the tongues (21) and thread portions (12a) to move axially away from the wide mouth opening (100) .
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112015018253B1|2021-06-22|ASSEMBLY COMPRISING A PREFORM OR PLASTIC CONTAINER AND A REMOVABLE CLOSURE
    US7891513B2|2011-02-22|Container base with feet
    CA2939428C|2019-12-31|Vacuum base for container
    US8468785B2|2013-06-25|Container for hot-filling
    MX2010008548A|2010-12-20|Flex ring base.
    BRPI0907146B1|2018-10-16|one piece plastic container and method of manufacturing a blow molded plastic container
    JP2009524562A|2009-07-02|Preforms and containers with threaded grooves
    CA2735814C|2017-10-10|Preform for making plastic container
    WO2007089552A2|2007-08-09|Blow-molded container having thread groove
    BRPI0811620B1|2018-10-09|"ONE-PIECE PLASTIC CONTAINER AND PREFORMED FOR SHAPING IT".
    JP4210901B2|2009-01-21|Manufacturing method of bottle-shaped container
    JP2017081612A|2017-05-18|Synthetic resin container and production method thereof
    JP3835428B2|2006-10-18|Heat-resistant stretched resin container
    JP2019072902A|2019-05-16|Preform, plastic bottle and method for producing the same
    WO2019017395A1|2019-01-24|Polyester resin container, method for producing same, and blow mould
    JP7006101B2|2022-01-24|How to make preforms and plastic bottles
    JP2022031522A|2022-02-18|How to make preforms and plastic bottles
    JP2019064164A|2019-04-25|Preform and plastic bottle
    JP2019072903A|2019-05-16|Preform, plastic bottle and method for producing the same
    BR112016018248B1|2021-12-28|PRIMARY BLOW MOLD, SYSTEM FOR DOUBLE BLOW MOLDING HEAT RESISTANT CONTAINERS AND METHOD FOR DOUBLE BLOW MOLDING A HEAT RESISTANT CONTAINER
    JPH10113976A|1998-05-06|Blow molding bottle
    JPH0656139A|1994-03-01|Preform and bottle for biaxial oriented blow molding
    同族专利:
    公开号 | 公开日
    US10793313B2|2020-10-06|
    BR112015018253A2|2017-07-18|
    EP2762415B1|2016-10-19|
    CN105358441B|2018-12-14|
    CA2899345A1|2014-08-07|
    MX2015009817A|2016-06-16|
    WO2014118016A1|2014-08-07|
    US20150375887A1|2015-12-31|
    ES2610586T3|2017-04-28|
    CA2899345C|2021-01-12|
    CN105358441A|2016-02-24|
    EP2762415A1|2014-08-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1293624B|1961-01-19|1969-04-24|Owens-Illinois Inc., Toledo, Ohio |Screw cap closure|
    US5100013A|1990-01-29|1992-03-31|Extrudiplast Investments, S.A.|Plastic closure|
    FR2722479B1|1994-07-13|1996-09-06|Reboul Smt|PIVOTING LID CONTAINER|
    EP1145977A1|2000-04-06|2001-10-17|White Cap Europe GmbH|Cam closure with means for permitting stacking|
    US6702133B1|2000-10-12|2004-03-09|Crown Cork & Seal Technologies Corporation|Plastic retorable container system having a closure with an improved conformable liner|
    FR2921906B1|2007-10-08|2011-05-13|Oreal|CONTAINER WITH REMOVABLE SHUTTER ELEMENT|
    EP2100707A1|2008-03-13|2009-09-16|La Seda De Barcelona S.A.|Plastic preform having a low weight sealable neck finish|
    JP2010241505A|2009-03-16|2010-10-28|Shiseido Co Ltd|Thin walled container and refill container|
    WO2011148879A1|2010-05-28|2011-12-01|日精エー・エス・ビー機械株式会社|Preform opening crystallization method|
    CH703369A1|2010-06-24|2011-12-30|Alpla Werke|Preform for the production of plastic containers in a stretch blow molding process and method for preparing the preforms.|
    JP5750002B2|2011-07-29|2015-07-15|麒麟麦酒株式会社|Plastic bottle preform and plastic bottle|BR112014002244A2|2011-08-01|2017-02-21|Graham Packaging Co|plastic aerosol container and manufacturing method|
    US10093460B2|2015-08-14|2018-10-09|Yeti Coolers, Llc|Container with magnetic cap|
    USD787893S1|2015-11-20|2017-05-30|Yeti Coolers, Llc|Jug|
    US20170327277A1|2016-05-10|2017-11-16|Snapple Beverage Corp.|Container assemblies including metal closures and thermoplastic containers and methods of hot-filling food and beverage products|
    EP3632274B1|2016-10-17|2021-05-12|Yeti Coolers, LLC|Container and method of forming a container|
    US10959552B2|2016-10-17|2021-03-30|Yeti Coolers, Llc|Container and method of forming a container|
    US11034505B2|2016-10-17|2021-06-15|Yeti Coolers, Llc|Container and method of forming a container|
    US10959553B2|2016-10-17|2021-03-30|Yeti Coolers, Llc|Container and method of forming a container|
    USD860716S1|2017-03-27|2019-09-24|Yeti Coolers, Llc|Container lid|
    NL2019538B1|2017-09-13|2019-03-27|Creative Cloud Company B V|Wine bottle and method|
    US20210031962A1|2019-07-30|2021-02-04|Niagara Bottling, Llc|Container preform with tamper evidence finish portion|
    USD896572S1|2018-08-20|2020-09-22|Yeti Coolers, Llc|Container lid|
    USD897151S1|2018-10-17|2020-09-29|Yeti Coolers, Llc|Lid|
    USD883737S1|2018-10-17|2020-05-12|Yeti Coolers, Llc|Lid|
    USD883738S1|2018-10-17|2020-05-12|Yeti Coolers, Llc|Lid|
    USD871133S1|2018-10-17|2019-12-31|Yeti Coolers, Llc|Lid|
    法律状态:
    2018-11-13| 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]|
    2020-12-01| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2021-05-04| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-22| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/01/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP13153203.8|2013-01-30|
    EP13153203.8A|EP2762415B1|2013-01-30|2013-01-30|An assembly comprising a wide-mouth plastic preform or container having a reinforced neck finish and a screwable closure|
    PCT/EP2014/050850|WO2014118016A1|2013-01-30|2014-01-17|An assembly comprising a wide-mouth plastic preform or container having a reinforced neck finish and a screwable closure|
    [返回顶部]