A paper material, including a base substrate having the following formulation: a mixture of cellulose fibres, cotton fibres and synthetic fibres, between 50% and 80% by weightat least one polymeric substance, between 1% and 10% by weightat least one inorganic filler, between 10% and 50% by weightat least one polyol and/or acrylic polymer and/or starch, between 1% and 10% by weightaluminium salts, between 1% and 30% by weight; where the aluminium salts, the at least one polyol and/or acrylic polymer and/or starch being present in at least one surface of the paper material.

A paper material, including a base substrate having the following formulation: a mixture of cellulose fibres, cotton fibres and synthetic fibres, between 50% and 80% by weightat least one polymeric substance, between 1% and 10% by weightat least one inorganic filler, between 10% and 50% by weightat least one polyol and/or acrylic polymer and/or starch, between 1% and 10% by weightaluminium salts, between 1% and 30% by weight; where the aluminium salts, the at least one polyol and/or acrylic polymer and/or starch being present in at least one surface of the paper material.

Described herein is an acoustic building panel comprising a body comprising inorganic fiber in an amount ranging from about 60.0 wt. % to about 90.0 wt. % based on the total weight of the body; and microfibrillated fiber in an amount ranging from about 0.5 wt. % to about 10 wt. % based on the total weight of the body.

The present invention relates to a porous sheet comprising cellulose fibers having an average fiber diameter ranging from 20 to 500 nm; cut fibers having an average fiber diameter ranging from 1.5 to 20 m; and a hydrophilic polymer binder, wherein an amount of the cut fibers is 1% by weight or more and 80% by weight or less based on the total weight of the cellulose fibers and the cut fibers, and an amount of the hydrophilic polymer binder is 5 parts by weight or more and 30 parts by weight or less with respect to 100 parts by weight of the total weight of the cellulose fibers and the cut fibers. The porous sheet of the present invention can exhibit a superior strength (in particular, both tear strength and tensile strength), and exhibits a superior performance as a separator for an electrochemical device.

An absorbent composite foam is provided having a density below 0.04 g/cc and low wet collapse comprising (i) between about 5 to about 40% by wt. fluid resistant fibers; (ii) between about 30 to about 80% by wt. cellulosic fibers; (iii) between about 5 to about 35% by wt. binder; and (iv) a foaming surfactant. The combination of ultra-low density and wet stability is achieved, despite a high proportion of cellulosic fibers, by having both hydrogen bonding between cellulosic fibers as well as inter-fiber bonds formed by the binder.

An absorbent composite foam is provided having a density below 0.04 g/cc and low wet collapse comprising (i) between about 5 to about 40% by wt. fluid resistant fibers; (ii) between about 30 to about 80% by wt. cellulosic fibers; (iii) between about 5 to about 35% by wt. binder; and (iv) a foaming surfactant. The combination of ultra-low density and wet stability is achieved, despite a high proportion of cellulosic fibers, by having both hydrogen bonding between cellulosic fibers as well as inter-fiber bonds formed by the binder.

The invention relates to a fibrous mat facer for preparing a gypsum board, to a gypsum board comprising said mat facer and to a system comprising said gypsum board. The fibrous mat comprises at least one ply of a non-woven fabric, and a binder composition, wherein the binder composition represents from 10 to 40 wt % of the total weight of the mat. The binder composition comprises a copolymer comprising a co-monomer unit of a vinyl ester of an alpha branched aliphatic monocarboxylic acid, said copolymer being present in an amount from 25 to 100 wt % of the binder composition weight.

The invention relates to a fibrous mat facer for preparing a gypsum board, to a gypsum board comprising said mat facer and to a system comprising said gypsum board. The fibrous mat comprises at least one ply of a non-woven fabric, and a binder composition, wherein the binder composition represents from 10 to 40 wt % of the total weight of the mat. The binder composition comprises a copolymer comprising a co-monomer unit of a vinyl ester of an alpha branched aliphatic monocarboxylic acid, said copolymer being present in an amount from 25 to 100 wt % of the binder composition weight.

The present invention relates to a method for the production of polysaccharide fibers which contain (1.fwdarw.3)-glucan as a fiber-forming substance, as well as to the fibers made thereby, and to their use.

The present invention relates to a method for the production of polysaccharide fibers which contain (1.fwdarw.3)-glucan as a fiber-forming substance, as well as to the fibers made thereby, and to their use.