Patent classifications
Y10T428/31906
Paper and cardboard packaging with barrier coating
Described is paper or cardboard packaging produced from mineral oil contaminated, (e.g., recycled) paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymer dispersion comprising a copolymer obtainable by emulsion polymerization of C.sub.1-C.sub.4 alkyl (meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0 to 10 wt % of further monomers in an aqueous medium in the presence of a carbohydrate compound, preferably in the form of a degraded starch, wherein the glass transition temperature of the copolymer is in the range from +10 to +45 C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.
WET COATING COMPOSITIONS FOR PAPER SUBSTRATES, PAPER SUBSTRATES COATED WITH THE SAME AND PROCESS FOR COATING A PAPER SUBSTRATE WITH THE SAME
A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 25 mN/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 mN/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.
PRINTABLE COATING
A primer-less coating composition for facestock comprises: a binder being a water-dispersible polymer; an ethylenically unsaturated compound which is aqueous-dispersible and miscible with or bonded to said water-dispersible polymer, wherein said ethylenically unsaturated compound is able to form a covalent bond with an ink; and a crosslinker, wherein said crosslinker is suitable for binding the coating to the facestock. The coating composition may be applied to a substrate to form a printable film. A printed film in accordance with the invention may be used in a label, for example for use on a container such as a bottle.
ENGINEERED WATERPROOF PLASTIC COMPOSITE FLOORING AND WALL COVERING PLANKS
Waterproof engineered floor and wall planks have a veneer layer bonded with a plastic composite core, and an underlayer, preferably an underlayer of cork.
Wet coating compositions for paper substrates, paper substrates coated with the same and process for coating a paper substrate with the same
A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.
A PACKAGING SHEET FOR PACKAGING OF CHEESE, AND ASSOCIATED PACKAGING AND MANUFACTURING METHODS
Disclosed is a packaging sheet for packaging of cheese, in particular white moulded soft cheese. The packaging sheet comprises: an inner surface and an outer surface of the packaging sheet, said inner surface being configured for facing the cheese in a packaged use position of the packaging sheet; a paper layer with a first surface and a second surface; a coloured layer provided on a first surface of the paper layer, an outer surface of the coloured layer establishing said outer surface of the packaging sheet; and a polymer layer with a water vapour transmission rate of at least 300 g/m2/24 hours at 38 C. and 90% atmospheric humidity. The polymer layer being coated on the second surface of the paper layer with a first surface of the polymer layer facing the paper layer and a second surface of the polymer layer establishing said inner surface of the packaging sheet.
Functionalized amphiphilic plant-based polymers
Amphiphilic copolymers formed from plant oil-derived vinyl ether monomers and polyethylene glycol alkyl vinyl ethers are provided. Nanoparticles coated with these amphiphilic polymers are well-suited for water remediation applications.
WET COATING COMPOSITIONS FOR PAPER SUBSTRATES, PAPER SUBSTRATES COATED WITH THE SAME AND PROCESS FOR COATING A PAPER SUBSTRATE WITH THE SAME
A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.
Adhesive propylene polymer composition suitable for extrusion coating of paper substrates
Two-component adhesion composition suitable for extrusion coating paper substrates which comprises: a) from 70 to 98 wt % of high melt strength polypropylene (A) with a branching index g of 0.9 or less; and b) from 2 to 30 wt % of a component (B) selected from the group consisting of: (i) maleic anhydride-modified polypropylene (MAPP); (ii) maleic anhydride-modified polypropylene wax; (iii) polypropylene homopolymer with high melt flow rate; or (iv) ethylene-vinyl acetate-based hot melt adhesive,
and its use.
Oven skin packaging film
A vacuum skin packaging film produced by the hot blown film method and comprising a polyester having a melting point of more than 200C.