• 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:
    Element for the manufacture of cover panels, furniture or furniture parts characterized in that it comprises a base material comprising at least one phenolic panel; and a coating material located on the base material, wherein said coating material comprises a resin base additive with at least one mineral filler comprising graphene. The process for manufacturing said element and its use in the manufacture of covering panels, furniture or furniture parts is likewise object of the invention. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2739774A1
    申请号:ES201830805
    申请日:2018-08-03
    公开日:2020-02-03
    发明作者:Alvarez Alfonso Carlos Perez
    申请人:Mamparas Doccia S L；
    IPC主号:
    专利说明:

    [0001]
    [0002]
    [0003]
    [0004] SECTOR OF THE TECHNIQUE
    [0005] The present invention relates to a new element for the manufacture of cover panels, furniture or furniture parts. In particular, it is a product based on phenolic resins comprising a graphene coating. The object of the invention is also the process of manufacturing said element, as well as the use thereof for the manufacture of covering panels, furniture or furniture parts.
    [0006]
    [0007] BACKGROUND OF THE INVENTION
    [0008] Phenolic or compact phenolic resin panels are panels based on cellulose sheets impregnated with phenolic resins. They are materials widely used in the manufacture of furniture or furniture elements due to their high rigidity, hardness and strength.
    [0009]
    [0010] In general, these types of materials offer multiple advantages since they resist moisture and heat, they are very poorly porous and, therefore, antiseptic, antibacterial and hygienic materials. In addition, they need very little maintenance and are very easy to clean.
    [0011]
    [0012] In the state of the art it is possible to find different patents referring to furniture panels based on phenolic resins. Thus, for example, application GB2512180 refers to a panel for furniture comprising a polymer foam located between an upper layer and a lower layer, where said polymer foam may be constituted by a phenolic material.
    [0013]
    [0014] However, despite the advantages of the phenolic panels that are known at present, a fairly common disadvantage of this type of materials is their high weight, which is an inconvenience when using the panels, for example, in the kitchen countertops manufacturing. The currently available phenolic panels allow partially solving this problem because, being much more resistant than conventional wood, they reduce their thickness to values below 10 mm, when the thickness of conventional furniture panels is usually 16 mm to 19 mm. Additionally, the phenolic panels avoid the need to have to add reinforcements to give solidity to the piece. However, there is still a need to develop new elements for the manufacture of cover panels, furniture or furniture parts that have improved characteristics compared to those currently available in the state of the art, in particular, with a lower weight than the corresponding to the alternative materials existing in the market. This lower weight, together with the possibility of reducing the thickness as set forth above, is a great advantage for the manufacture of cover panels, furniture or furniture parts. In addition, the element of the present invention has greater ease of assembly, possibility of repair, resistance to dry heat and, additionally, a lower price than other known materials.
    [0015]
    [0016] DESCRIPTION OF THE INVENTION
    [0017] The present invention relates to a new element for the manufacture of cover panels, furniture or furniture parts, characterized in that it comprises: (a) a base material comprising at least one phenolic panel; Y
    [0018] (b) a coating material located on the base material, which consists of a finishing coat (English top coat ). Said coating material is characterized in that it comprises a resin base that can preferably be selected from a group consisting of a polyester resin, a polyester resin modified with acrylic resin, an epoxy resin and an acrylic polyurethane resin, as well as any of its combinations Preferably, this base is a polyester resin or a polyester resin modified with acrylic resin. Additionally, the coating material is added with at least one mineral filler consisting of graphene.
    [0019]
    [0020] For the purposes of this patent, a coating material is understood as a material suitable for covering the base material, which can also be understood as a coating material, for the purpose of protecting or embedding the base material.
    [0021]
    [0022] Likewise, the cover panels manufactured from the element to be protected may be used for coating walls and / or surfaces of different places such as bathrooms, toilets or kitchens, among many other examples.
    [0023]
    [0024] At the same time, as pieces of furniture, for example, countertops located on the top of kitchen furniture, bathrooms or laboratories, among other examples, can be considered.
    [0025]
    [0026] Preferably, the coating material will be located on the useful face of the element to be protected. In particular, it will not be necessary to apply it on the underside or not useful, since the phenolic panel comprised in the base material has optimal characteristics with respect to resistance to moisture, scratching, heat, etc. and also allows easy cleaning. A significant advantage of applying the coating on the useful face of the piece is that, in this way, the element of the invention can withstand the application of dry heat. This property can be determined by supporting a 180 ° metal container and allowing it to cool on the material to be analyzed, so that the test is passed if the material is not marked. This is an important advantage over other alternative products of the state of the art, which fail to pass this test. Additionally, the presence of the coating material on the useful face of the piece allows to provide aesthetic features such as color, texture, etc.
    [0027]
    [0028] On the other hand, when the element object of protection is intended for the manufacture of furniture, for example, bathroom, kitchen or exterior, the coating material will preferably be applied throughout the piece, giving the piece a uniform appearance.
    [0029]
    [0030] In particular embodiments of the present invention, the layer of coating material on the base material will have a thickness of 300 to 600 pm and will generally be constituted by the application of at least two uniform layers.
    [0031]
    [0032] The object of the invention as described offers a very important advantage derived from the presence of graphene in the coating, in particular, from the presence of between 1% and 2.5% graphene, amounts expressed by weight with respect to the amount of base resin of the coating material. Graphene provides unsurpassed characteristics in terms of scratch resistance and water repellent nature. A sheet of graphene of an atom thick is about 200 times stronger than steel, its density being similar to that of carbon fiber and about five times lower than that of aluminum.
    [0033]
    [0034] Among the main advantages of the object of the present invention are the following:
    [0035] • First, it allows the weight of the final products obtained from the element object of the invention to be significantly reduced compared to other alternative products of the prior art. For example, in the particular case of the manufacture of kitchen countertops, its weight is reduced by approximately 35% or 40%;
    [0036] • Likewise, products obtained from the claimed material can take many forms and finishes, as a consequence of the characteristics of the base material comprising at least one phenolic panel. This type of material allows machining different shapes easily and quickly, comparing it with other materials such as, for example, Silestone® or marble. Likewise, the finishes can be very varied in terms of colors and textures, since the coating that is applied can have the desired color;
    [0037] • on the other hand, it offers the possibility of obtaining furniture or panels of invisible joints and of great ease of assembly by any end user, since any user can make changes in the shape of the piece before mounting it using, for example, a DIY jigsaw. Unlike the manufacturing element for cover panels, furniture or furniture parts described in this document, existing materials that are mounted on kitchen furniture, bathrooms or cover panels require special machinery with diamond cutting discs . On the other hand, to obtain invisible seals, together with the elements of the invention, a kit of the exact same color of product can be provided so that the end user of the piece seals all the seals, avoiding the use of some type of silicone standard or transparent color that does not resemble the color of the final product;
    [0038] • In addition, its manufacturing process is very simple since it only requires the mechanization of the piece and the application of the coating with the desired shape and color;
    [0039] • Likewise, the claimed element allows to obtain panels and furniture with a high scratch resistance, as well as dry heat proof;
    [0040] • Finally, the final products obtained from the claimed material are characterized by having hydrophobic and antibacterial properties, which makes them especially suitable for their final application. In particular, its polished surface has a fungicidal behavior, since it prevents the fixation and reproduction of bacterial colonies and facilitates cleaning and disinfection.
    [0041]
    [0042] It is also the object of the invention the process for manufacturing the material object of the invention characterized in that it comprises applying a coating on a base material comprising at least one phenolic panel. This application can be carried out using compressed air painting equipment, such as a conventional Airmix equipment . Preferably, the application will be carried out by controlling the temperature and humidity. Preferably, the temperature will be controlled to be in a range between 20 ° C and 25 ° C and the relative humidity in a range between 50% and 60%. Also, the thickness of the coating will preferably be between 300 and 600 microns wet, that is, the coating has just been applied. Once dry and cured, the thickness can drop 4% of the wet value. Said thickness may be achieved by applying the coating, preferably, in a consecutive process of application in multiple layers, and preferably in three stages.
    [0043]
    [0044] As indicated, after the application of the coating material on the base material, the process comprises an additional stage of drying and curing the coating. The drying step can preferably be carried out at a temperature between 40 ° and 60 ° C, for a period of 3 to 6 hours. Finally, in a time that can be about 16 hours, the curing of the coating is achieved. The curing process can be favored by the use of at least one catalyst that can consist of 2% by weight methyl ethyl ketone peroxide with respect to the amount of resin of the coating material.
    [0045]
    [0046] In particular embodiments of the invention the process may additionally comprise a previous stage of preparation of the phenolic panels by cutting and surface preparation to ensure adhesion of the coating material. More specifically, this stage will allow to create a good adhesion on the surface of the panel that forms the base material, once machined, for the subsequent application of the coating. This adhesion can be achieved by passing the panel through a pressurized sand machine.
    [0047]
    [0048] Finally, it is the object of the invention to use the element object of the invention for the manufacture of cover panels, furniture or furniture parts such as, for example, kitchen, bathroom, laboratory countertops or, in general, any surface that requires a high resistance to scratching and / or dry heat.
    [0049]
    [0050] PREFERRED EMBODIMENT OF THE INVENTION
    [0051] In particular embodiments of the invention, the base material may consist of a phenolic panel preferably selected from:
    [0052] (a) a compact HPL phenolic board (from "High Pressure Laminate ') of Kraft paper. This board will be especially suitable for the manufacture of outdoor furniture, due to its moisture absorption capacity;
    [0053] (b) an HPL phenolic compact board made of wood fibers, whose physical and mechanical properties are very similar to those of HPL phenolic compact Kraft paper boards; Y
    [0054] (c) a phenolic plywood composed of several wood sheets superimposed perpendicular to each other, giving them a water-repellent character.
    [0055]
    [0056] The type of phenolic panel selected will not be limiting for the invention, and any type of phenolic panel known in the state of the art can be used, depending on the application of the final product.
    [0057]
    [0058] As for the type of coating used to obtain the material object of the invention, in particular embodiments thereof, said coating may consist of an accelerated gel coat with an isophthalic unsaturated polyester base modified with neopentyl glycol. Preferably, it will also comprise nanoparticles of between 1% and 2.5% graphene and between 3% and 4.5% alumina trihydrates (ATH), amounts expressed by weight with respect to the total weight of the base resin of the coating.
    [0059]
    [0060] Additionally, after application of the coating material on the base material, it may be subjected to a drying and curing process, which can be favored by using at least one catalyst that can be selected from a fast, slow or medium catalyst and which, preferably, will consist of 2% by weight methyl ethyl ketone peroxide relative to the amount of resin of the coating material.
    [0061]
    [0062] In particular, the gel coat used as a coating may be water-based, acrylic or polyurethane.
    [0063]
    [0064] Additionally, the coating may comprise at least one substance that provides color and allows the coating to be mono or polychromatic tones.
    [0065]
    [0066] Examples
    [0067] In order to verify the properties of the claimed material, the process described above for its manufacture was carried out. First, it was based on a compact HPL phenolic board made of Kraft paper on which two layers of a gel coat type coating with isophthalic unsaturated polyester base modified with neopentyl glycol and a 2.5% load of graphene nanoparticles were applied. 3% alumina trihydrates (ATH), both percentages by weight with respect to the amount of resin in the coating material. The application of the coating was carried out by means of an Airmix compressed air painting equipment at a temperature of 21 ° C and a relative humidity of 50%. Subsequently, the drying and curing process was carried out, using a 2% by weight methyl ethyl ketone peroxide catalyst with respect to the amount of resin. The drying process was carried out at 40 ° C.
    [0068]
    [0069] The physical, mechanical and chemical properties of the material obtained from the described process are summarized below.
    [0070]
    [0071] Mechanical properties (NTF ISO 75 and ISO 527)
    [0072]
    [0073]
    [0074] Chemical properties (UNE EN-14688)
    [0075]
    [0076]
    [0077] Physical properties:
    [0078]
    权利要求:
    Claims (12)
    [1]
    1. Element for the manufacture of cover panels, furniture or furniture parts characterized by comprising:
    (c) a base material comprising at least one phenolic panel; Y
    (d) a coating material located on the base material, wherein said coating material comprises a resin base additive with at least one mineral filler comprising graphene.
    [2]
    2. Element according to claim 1, wherein the resin is selected from a group consisting of polyester resin, polyester resin modified with acrylic resin, epoxy resin and acrylic polyurethane resin, as well as any combination thereof.
    [3]
    3. Element according to claim 1 or 2, wherein the coating material comprises between 1% and 2.5% graphene, amounts expressed by weight with respect to the resin weight of the coating material.
    [4]
    4. Element according to any one of claims 1 to 3, wherein the phenolic panel is selected from a group consisting of a compact phenolic board of Kraft paper, a compact phenolic board of wood fibers and a phenolic plywood.
    [5]
    5. Element according to any one of the preceding claims, wherein the base of the coating is selected from a group consisting of aqueous base, acrylic base and polyurethane base.
    [6]
    6. Element according to any one of the preceding claims, wherein the coating additionally comprises at least one substance that provides color.
    [7]
    7. Process for manufacturing an element according to any one of claims 1 to 6, characterized in that it comprises: applying a coating comprising a resin base additive with at least one mineral filler comprising graphene on a base material that It comprises at least one phenolic panel and subjecting the coating to a drying and curing process of the material of covering.
    [8]
    8. Process according to claim 7 wherein the application of the coating is carried out by controlling the temperature and humidity, so that the temperature is between 20 and 25 ° C and the relative humidity between 50 and 60%.
    [9]
    9. Process according to claim 7 or 8, wherein the application of the coating is carried out in multiple layers until a thickness of between 300 and 600 pm is obtained.
    [10]
    10. Process according to any one of claims 7 to 9 characterized in that it comprises a previous additional stage of preparation of the phenolic panels by cutting and surface preparation to ensure the adhesion of the coating material.
    [11]
    11. Use of an element according to any one of claims 1 to 6 for the manufacture of cladding panels, furniture or furniture parts.
    [12]
    12. Use of an element according to any one of claims 1 to 6 for the manufacture of countertops.
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    同族专利:
    公开号 | 公开日
    ES2739774B2|2021-03-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20110200825A1|2010-02-17|2011-08-18|Baker Hughes Incorporated|Nano-coatings for articles|
    US20170349763A1|2016-06-04|2017-12-07|Enerage Inc.|Anti-corrosion composite layers|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201830805A|ES2739774B2|2018-08-03|2018-08-03|ELEMENT FOR THE MANUFACTURE OF COATING PANELS, FURNITURE OR PARTS OF FURNITURE|ES201830805A| ES2739774B2|2018-08-03|2018-08-03|ELEMENT FOR THE MANUFACTURE OF COATING PANELS, FURNITURE OR PARTS OF FURNITURE|
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