D21H17/34

Pressed laminate panel with a single layer elastomerick treated paper
10850487 · 2020-12-01 ·

A laminated panel is provided which comprises, or consists of, a core panel to which an elastomeric resin impregnated single finishing printed paper layer has been applied. The paper for the single finishing printed paper layer is printed to provide a design feature on the laminated panel. Preferably, the design feature has been printed on a lower surface of the single finishing printed paper layer. As a result of the resin impregnation and heating and pressing operations, the single finishing printed paper layer becomes translucent or transparent, and thus allows the printed design feature to become visible. The design feature can be printed onto the single finishing printed paper prior to treatment with the elastomeric resin, or printed onto the previously treated elastomeric resin impregnated paper. The laminated panels can be used in the production of laminated flooring, wall panels or furniture panels.

RECYCLABLE BARRIER PAPER

A barrier paper having a paper substrate having a front side and a back side opposite the front side, and a barrier layer disposed to the front side of the paper substrate. The barrier layer has of a polymeric binder and a wax based on a vegetable oil, the use of a barrier paper as wrapping paper, lining paper, paper for inner-bag packaging, interleaving paper and/or release paper for foods, and also to a method for producing a barrier paper.

RECYCLABLE BARRIER PAPER

A barrier paper having a paper substrate having a front side and a back side opposite the front side, and a barrier layer disposed to the front side of the paper substrate. The barrier layer has of a polymeric binder and a wax based on a vegetable oil, the use of a barrier paper as wrapping paper, lining paper, paper for inner-bag packaging, interleaving paper and/or release paper for foods, and also to a method for producing a barrier paper.

Method for providing a pretreated filler composition and its use in paper and board manufacturing

The present invention relates to a method for providing a pretreated filler composition for use in paper and board manufacturing including the steps of: a) providing a filler comprising precipitated calcium carbonate, said filler being in the form of a slurry comprising no additives; b) providing at least one polymer selected from polyvinylamine or polyacrylic amide, said polymer having a charge density of an absolute value of at most 4 meq/g determined at pH 7; c) combining said at least one polymer of step b) with the filler of step a); d) providing a slurry of nanofibrillar cellulose; e) combining said nanofibrillar cellulose slurry with the formed combination of step c) and forming a pretreated filler composition comprising aggregates. Further it also relates to a pretreated filler composition prepared therefrom, and its use in stocks, paper and paper board.

Method for providing a pretreated filler composition and its use in paper and board manufacturing

The present invention relates to a method for providing a pretreated filler composition for use in paper and board manufacturing including the steps of: a) providing a filler comprising precipitated calcium carbonate, said filler being in the form of a slurry comprising no additives; b) providing at least one polymer selected from polyvinylamine or polyacrylic amide, said polymer having a charge density of an absolute value of at most 4 meq/g determined at pH 7; c) combining said at least one polymer of step b) with the filler of step a); d) providing a slurry of nanofibrillar cellulose; e) combining said nanofibrillar cellulose slurry with the formed combination of step c) and forming a pretreated filler composition comprising aggregates. Further it also relates to a pretreated filler composition prepared therefrom, and its use in stocks, paper and paper board.

PAPER COMPRISING ARAMID PULP SUITABLE FOR ELECTROCHEMICAL CELLS, AND ELECTROCHEMICAL CELLS MADE THEREFROM
20200362516 · 2020-11-19 ·

A paper suitable for use as a separator or thermal or fire insulation for use in or with electrochemical cells, and an electrochemical cell comprising the same, the paper having 90 to 99 weight percent aramid fibrous pulp comprising aramid polymer fibrils and 1 to 10 weight percent polyvinylpyrrolidone present as a coating on the surface of the fibers, the paper having a thickness of 10 to 40 micrometers and a tensile strength of at least 15 megapascals or greater.

PAPER COMPRISING ARAMID PULP SUITABLE FOR ELECTROCHEMICAL CELLS, AND ELECTROCHEMICAL CELLS MADE THEREFROM
20200362516 · 2020-11-19 ·

A paper suitable for use as a separator or thermal or fire insulation for use in or with electrochemical cells, and an electrochemical cell comprising the same, the paper having 90 to 99 weight percent aramid fibrous pulp comprising aramid polymer fibrils and 1 to 10 weight percent polyvinylpyrrolidone present as a coating on the surface of the fibers, the paper having a thickness of 10 to 40 micrometers and a tensile strength of at least 15 megapascals or greater.

Use of an acrylate copolymer as retention aid in a method of making a substrate comprising cellulosic fibres

Method of making a substrate comprising cellulosic fibres such as paper comprising at least steps (a) and (b): (a) providing an aqueous suspension comprising cellulosic fibres; (b) adding to the suspension provided in step (a) an acrylate copolymer containing carboxyl groups or a salt thereof and ester groups;
wherein the acrylate copolymer is the polymerization product of monomers at least selected from an acrylic acid ester of general formula I CH.sub.2CR.sup.1CO.sub.2R.sup.2 and an acrylic acid of general formula II CH.sub.2CR.sup.3COOH or a salt thereof, wherein R.sup.1 and R.sup.3 are independently selected from H, CH.sub.3, or C.sub.2H.sub.5; and R.sup.2 is a C.sub.1-10 alkyl group.

Use of an acrylate copolymer as retention aid in a method of making a substrate comprising cellulosic fibres

Method of making a substrate comprising cellulosic fibres such as paper comprising at least steps (a) and (b): (a) providing an aqueous suspension comprising cellulosic fibres; (b) adding to the suspension provided in step (a) an acrylate copolymer containing carboxyl groups or a salt thereof and ester groups;
wherein the acrylate copolymer is the polymerization product of monomers at least selected from an acrylic acid ester of general formula I CH.sub.2CR.sup.1CO.sub.2R.sup.2 and an acrylic acid of general formula II CH.sub.2CR.sup.3COOH or a salt thereof, wherein R.sup.1 and R.sup.3 are independently selected from H, CH.sub.3, or C.sub.2H.sub.5; and R.sup.2 is a C.sub.1-10 alkyl group.

Method for producing a decorated sheet and use thereof
10815621 · 2020-10-27 · ·

Decorated sheets on the basis of cellulose non-woven fabrics, such as paper, for the production of decorated laminates are impregnated with synthetic resins. Consequently, their sizes are changed, they become brittle and are not water-resistant in the laminate. In the method according to the invention the printed or unprinted non-woven fabrics are impregnated with an aqueous dispersion of a polymer which is cross-linkable by UV radiation, dried and optionally printed and finally irradiated with UV radiation. The decorated sheets thus obtained are water-resistant in the laminate and can be coiled up and stored after each process step.