Various embodiments related to systems, methods, and articles for rapid inactivation of SARS-CoV-2 by silicon nitride and aluminum nitride are disclosed herein.

Various embodiments related to systems, methods, and articles for rapid inactivation of SARS-CoV-2 by silicon nitride and aluminum nitride are disclosed herein.

A latex composition having a nitrile rubber containing an ,-ethylenically unsaturated nitrile monomer unit and a conjugated diene monomer unit, wherein the nitrile rubber has a weight average molecular weight of 50,000 to 100,000, and the weight of methanol extractables in all solids present in the latex composition is 2 to 20 wt % based on the weight of all the solids.

A glove according to the present invention includes a glove body configured to cover a hand of a wearer. The glove body has an outermost layer including a matrix resin and cellulose particles and constituting an outer surface of the glove. The outermost layer includes the cellulose particles in the range of more than 1 part to 9 parts or less by mass based on 100 parts by mass of the matrix resin. At least some of the cellulose particles are at least partially exposed from the outer surface.

A latex dipped article, particularly a fabric supported glove which is flexible and fatigue resistant, comprising a fabric liner, with a shape of a hand. The fabric liner is coated with a foam polymeric latex material which is then treated with an aqueous silicone or non-silicon based surface active agent to facilitate the formation of percolative surface structure through bursting of bubbles in the foam layer and stripped off the excess polymeric material. Then the stripped material is removed gently by exposing to a flowing fluid which further enhances the texture of the percolative coating that results an excellent grip in dry, wet and oil environments.

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.

A method for producing a laminate including a substrate and a rubber layer, the rubber layer having a thickness of 200 m or more from the surface of the substrate, the method including contacting the substrate in a heated state with a polymer latex having a viscosity of 2,000 to 100,000 mPa.Math.s at 25 C. to thereby coagulate the polymer in contact therewith to form the rubber layer.

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.

A glove is provided that includes an outer layer and an inner layer. The outer layer includes a polyvinyl alcohol (PVA) composite including PVA chemically modified with nano cellulose and pre cross linked nitrile latex. The inner layer includes nitrile latex.

A coating fabric and method of manufacturing the same are provided. A coated fabric includes a base coating layer. The base coating layer defines a smooth coating to resist liquid penetration to the fabric. The coated fabric also includes a middle foam coating layer that is deposited on at least a portion of the base coating layer. The middle foam layer defines a middle layer foam density and is configured to absorb at least a portion of liquid. The coated fabric further includes an outer foam coating layer that is deposited on at least a portion of the middle foam coating later. The outer foam layer defines an outer layer foam density and is configured with holes to allow liquid to penetrate to the middle foam layer. The middle layer foam density is less than the outer layer foam density. A corresponding method of manufacturing is also provided.