D06N2205/246

Polyurethane Coated Fabric Products

A polyurethane-coated fabric product, particularly a polyurethane-coated glove, has a fabric liner and, on the surface of the liner, a microporous foam layer comprising polyurethane and a bifunctional sulphur-containing alkoxysilane. The microporous foam layer exhibits increased abrasion resistance, durability and increased resistance to water penetration. Preferably, the bifunctional sulphur-containing alkoxysilane is bis(triethoxysilylpropyl)tetrasulphane. The polyurethane-coated fabric product is manufactured by a method that includes providing a fabric liner, applying a io coating to at least part of the surface of the liner, wherein the coating comprises a solution, in a polar aprotic solvent, of a polyurethane resin and a bifunctional sulphur-containing alkoxysilane, treating the coated fabric with water, thereby causing the polyurethane to coagulate and form a microporous foam layer on the fabric liner, and drying the polyurethane-coated fabric is product.

Polyurethane coated fabric

A method for making a polyurethane coated fabric, the method comprising: a) providing a fabric liner; b) applying a coating to at least part of the liner, said coating comprising a polyurethane resin and manganese ferrite dissolved in a polar aprotic solvent; c) at least partially gelling the coating with water or an aqueous solution, so that the polar aprotic solvent is extracted from the coating; d) leaching the at least partially gelled coating with water or an aqueous solution, so as to further reduce the level of the polar aprotic solvent in the coating; and e) drying and curing the coating. The coating may also contain a dark colour pigment. A composition suitable for use in the method is also provided. The method enables polyurethane coated fabric products, such as gloves, to be produced which are black or grey in colour and contain a reduced amount of residual polar aprotic solvent, such as N,N-dimethylformamide.

SHEET-LIKE MATERIAL
20190368124 · 2019-12-05 · ·

The present invention provide a sheet-like material having a highly soft texture, and further having high crease resistance while being soft. The sheet-like material of the present invention is a sheet-like material which includes a nonwoven fabric containing ultrafine fibers having an average single fiber diameter of 0.3 to 7 m, and an elastomer, and having nap on a surface, in which the elastomer has a porous structure, and the porous structure has a proportion of micropores with a pore size of 0.1 to 20 m of 60% or more in all pores.

POLYURETHANE COATED FABRIC

A method for making a polyurethane coated fabric, the method comprising: a) providing a fabric liner; b) applying a coating to at least part of the liner, said coating comprising a polyurethane resin and manganese ferrite dissolved in a polar aprotic solvent; c) at least partially gelling the coating with water or an aqueous solution, so that the polar aprotic solvent is extracted from the coating; d) leaching the at least partially gelled coating with water or an aqueous solution, so as to further reduce the level of the polar aprotic solvent in the coating; and e) drying and curing the coating. The coating may also contain a dark colour pigment. A composition suitable for use in the method is also provided. The method enables polyurethane coated fabric products, such as gloves, to be produced which are black or grey in colour and contain a reduced amount of residual polar aprotic solvent, such as N,N-dimethylformamide.

Laminated sheet and method of manufacturing the same

A laminated sheet includes a base cloth layer having a porous structure obtained by impregnating a woven fabric, which has a tear strength by a trapezoid method of 150 N or more in the longitudinal direction and 100 N or more in the lateral direction, with a resin composition containing a polyurethane resin and an organic flame retardant, and a skin layer layered on the base cloth layer, and has plural air holes penetrating in the thickness direction.

PRODUCTION METHOD FOR AMIDE GROUP-CONTAINING MONOMER

The present disclosure provides a production method for an amide group-containing monomer. With the present disclosure, an amide group-containing monomer in which the amount of impurities is low is efficiently produced, the production method including a transesterification reaction step for obtaining an amide group-containing monomer represented by a formula CH.sub.2C(R.sup.11)C(O)OY.sup.1NHC(O)R.sup.12 (in the formula, R.sup.11 is a hydrogen atom, a monovalent organic group, or a halogen atom, Y.sup.1 is a 2-4 valent hydrocarbon group having 1-6 carbon atoms, and R.sup.12 is a monovalent hydrocarbon group having 6-40 carbon atoms) from an amide group-containing alcohol represented by a formula HOY.sup.1NHC(O)R.sup.12 (in the formula, Y.sup.1 is a 2-4 valent hydrocarbon group having 1-6 carbon atoms and R.sup.12 is a monovalent hydrocarbon group having 6-40 carbon atoms), wherein the total amount of Na, K, and Li present as impurities of the amide group-containing alcohol is equal to or less than 300 ppm.