Abstract

The present invention relates to a low‑tension cover layer which is intended for a laminate material and comprises a resin‑impregnated decorative paper with or without printing or a resin‑impregnated overlay paper, or a combination of the two, wherein the resin comprises in each case a mixture of at least one aminoplast and at least one water‑soluble or water‑dispersible plastics material selected from the group made up of polyvinyl resin, polyvinyl acetate and polyvinyl alcohol. The invention also relates to the use of the low‑tension cover layer according to the invention for constructing a laminate material with corresponding counter‑tension.

IPC Classes  ?

• B32B 27/00 - Layered products essentially comprising synthetic resin
• B32B 29/00 - Layered products essentially comprising paper or cardboard
• D21H 17/36 - PolyalkenylalcoholsPolyalkenylethersPolyalkenylesters
• D21H 19/20 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• D21H 19/26 - Aminoplasts
• D21H 19/56 - Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
• D21H 19/58 - Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
• D21H 19/60 - PolyalkenylalcoholsPolyalkenylethersPolyalkenylesters
• D21H 27/24 - Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the surface to be covered being phenolic-resin paper laminates, vulcan fibre or similar cellulosic fibreboards
• D21H 27/26 - Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
• D21H 27/28 - Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures treated to obtain specific resistance properties, e.g. against wear or weather

Abstract

wet) containing a third synthetic resin is effected, and a final second treatment stage (BII) in which a heat treatment for removing the moisture is effected.

IPC Classes  ?

• C09J 9/02 - Electrically-conducting adhesives
• C04B 37/00 - Joining burned ceramic articles with other burned ceramic articles or other articles by heating
• B32B 5/16 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer formed of particles, e.g. chips, chopped fibres, powder

Abstract

The invention relates to an abrasion-resistant and scratch-resistant overlay film (10), in particular one that is to be subsequently pressed along with a support (20) in order to produce a laminate (L), comprising a paper (2) that has a synthetic resin impregnation (3), a coating (5) which is deposited on a top surface of the impregnation product (4) formed by the paper (2) and the impregnation (3) and contains a synthetic resin (6) and solid particles (7, 8), and a bottom layer (11) which is deposited on a bottom surface of the impregnation product (4) and also contains a synthetic resin (12) and solid particles (13). In order to be able to produce such a film with little technological effort and variably adjust the same to the respective requirements in terms of the resistance to scratches, scouring, and abrasion, while providing the film with processing characteristics causing little wear during the interaction with the tools used for that purpose, the solid particles (7, 8) of the coating (5) are composed of at least two different fractions; the first fraction is formed from glass beads (7), the size of which ranges from 0.8 to 250 μm, and the second fraction is formed from hard particles (8), the size of which ranges from 30 to 180 μm.

IPC Classes  ?

• D21H 27/28 - Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures treated to obtain specific resistance properties, e.g. against wear or weather
• B44C 5/04 - Ornamental plaques, e.g. decorative panels, decorative veneers

Abstract

The invention relates to a method for the production of an abrasion-resistant film (7, 9), particularly for the production of laminate floor materials, or abrasion-resistant surfaces of furniture, comprising the following operational steps: a first application stage (AI), in which a decorative paper (1) is provided with an impregnation (2) comprising a first synthetic resin, a second application stage (AII), in which a layer (4wet) is applied to the moist impregnate (3wet), said layer comprising a second synthetic resin and particulate abrasion-reducing material, a first treatment stage (BI), in which a heat treatment for the partial hardening of the synthetic resins and for the partial removal of the moisture from the moist, coated impregnate (5wet) is carried out, a third application stage (AIII), in which the application of a cover layer (6wet) comprising a third synthetic resin is carried out, and a final second treatment stage (BII), in which a heat treatment for removing the moisture is carried out. According to the invention, an acid-hardening amino formaldehyde resin, an isocyanate crosslinking coating system, or a mixture thereof is used as the second synthetic resin, which is applied in the second application stage (AII) to the moist impregnate (3wet), and in the final, second treatment stage (BII), complete hardening of the synthetic resin takes place. Furthermore, an abrasion-resistant finish film is claimed.

IPC Classes  ?

• D21H 27/28 - Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures treated to obtain specific resistance properties, e.g. against wear or weather
• D21H 19/82 - Paper comprising more than one coating superposed
• B32B 27/04 - Layered products essentially comprising synthetic resin as impregnant, bonding, or embedding substance
• B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
• B44C 5/04 - Ornamental plaques, e.g. decorative panels, decorative veneers

Goods & Services

Surface protection foils with a cellulose base, including impregnated with artificial resins (other than for packaging purposes), decorative papers and film and counteracting papers and film impregnated with artificial resins. Treatment of materials.

Goods & Services

Surface protection foils with a cellulose base, including impregnated with artifical resins (other than for wrapping), decorative papers and film and counteracting papers and film impregnated with artifical resins. Treatment of materials.