Coating compositions comprising a reaction product of components comprising a silicone comprising at least one ethylenically unsaturated group and at least one monomer polymerizable with the ethylenically unsaturated group are disclosed as are substrates comprising the same.

The present invention provides a coating agent for leather, the coating agent containing: in terms of solid content ratio, (I) an aqueous urethane resin; (II) a matting agent; and (III) a silicone acryl graft copolymer resin emulsion in which the weight ratio of a polyorganosiloxane represented by a specified formula relative to acrylic ester units or methacrylic ester units is 50:50 to 90:10, and a leather on which a coating by the coating agent for leather is formed. This coating agent for leather has exceptional wear resistance and anti-fouling properties, and a leather on which a coating by the coating agent is formed can maintain a high-quality external appearance and high wear resistance.

The present invention provides a coating agent for leather, the coating agent containing: in terms of solid content ratio, (I) an aqueous urethane resin; (II) a matting agent; and (III) a silicone acryl graft copolymer resin emulsion in which the weight ratio of a polyorganosiloxane represented by a specified formula relative to acrylic ester units or methacrylic ester units is 50:50 to 90:10, and a leather on which a coating by the coating agent for leather is formed. This coating agent for leather has exceptional wear resistance and anti-fouling properties, and a leather on which a coating by the coating agent is formed can maintain a high-quality external appearance and high wear resistance.

A packaging system for the storage of an ophthalmic device is disclosed. The packaging system comprises a sealed container containing one or more unused ophthalmic devices immersed in an aqueous packaging solution comprising one or more hydrophilic polymers or copolymers comprising hydrophilic units and endcapped with a hydrophobic end group and a hydrophilic end group, wherein the solution has an osmolality of at least about 200 mOsm/kg, a pH of about 6 to about 9 and is heat sterilized.

Provided are a substrate for test use that is preferable for use in a test such as a culture test, and a method for manufacturing the substrate for test use. The substrate for test use, in which a solution retaining part for retaining water or an aqueous solution, is formed at a surface of a substrate of polydimethylsiloxane (PDMS). The solution retaining part is a concave part having a hydrophilic surface layer. The surface layer has a maximum thickness of 1 m or larger.

Aqueous dispersions of copolymers of ethylenically unsaturated monomers and silicone resins bearing functional groups which are free radically polymerizable are prepared by forming an aqueous miniemulsion of the silicone resin dissolved in an ethylenically unsaturated monomer, the miniemulsion having a D.sub.50 droplet size <350 nm, and polymerizing using a free radical polymerization initiator.

Aqueous dispersions of copolymers of ethylenically unsaturated monomers and silicone resins bearing functional groups which are free radically polymerizable are prepared by forming an aqueous miniemulsion of the silicone resin dissolved in an ethylenically unsaturated monomer, the miniemulsion having a D.sub.50 droplet size <350 nm, and polymerizing using a free radical polymerization initiator.

An ultraviolet-curable pressure-sensitive silicone adhesive composition which comprises: 100 parts of an organopolysiloxane (A) having, in the molecule, two groups represented by general formula (1)

##STR00001##

(wherein R.sup.1 represents a C.sub.1-20 monovalent hydrocarbon group, R.sup.2 represents an oxygen atom, etc., R.sup.3 represents an acryloyloxyalkyl group, etc., p and a respectively indicate numbers satisfying 0p10 and 1a3); 1-500 parts of a monofunctional (meth)acrylate compound (B) containing no siloxane structure and/or a polyfunctional (meth)acrylate compound (C) containing no siloxane structure; 1-5,000 parts of an oranopolysiloxane resin (D) comprising R.sup.4.sub.3SiO.sub.1/2 units (a) (wherein R.sup.4 represents a C.sub.1-10 monovalent hydrocarbon group) and SiO.sub.4/2 units (b), the (a)/(b) molar ratio being (0.6-1.2)/1; and 0.01-20 parts of a photopolymerization initiator (E). This composition has satisfactory applicability and curability and gives a cured object which, when used as a temporary fixer, has excellent tackiness and strength.

An ultraviolet-curable pressure-sensitive silicone adhesive composition which comprises: 100 parts of an organopolysiloxane (A) having, in the molecule, two groups represented by general formula (1)

##STR00001##

(wherein R.sup.1 represents a C.sub.1-20 monovalent hydrocarbon group, R.sup.2 represents an oxygen atom, etc., R.sup.3 represents an acryloyloxyalkyl group, etc., p and a respectively indicate numbers satisfying 0p10 and 1a3); 1-500 parts of a monofunctional (meth)acrylate compound (B) containing no siloxane structure and/or a polyfunctional (meth)acrylate compound (C) containing no siloxane structure; 1-5,000 parts of an oranopolysiloxane resin (D) comprising R.sup.4.sub.3SiO.sub.1/2 units (a) (wherein R.sup.4 represents a C.sub.1-10 monovalent hydrocarbon group) and SiO.sub.4/2 units (b), the (a)/(b) molar ratio being (0.6-1.2)/1; and 0.01-20 parts of a photopolymerization initiator (E). This composition has satisfactory applicability and curability and gives a cured object which, when used as a temporary fixer, has excellent tackiness and strength.

A water swellable cross-linked elastomer and method of preparation is provided. The elastomer can advantageously be included in skin treatment compositions. Swellable elastomers in accordance with the invention are particularly well suited for inclusion in skin tightening cosmetic products. The elastomers can be formulated to form a film. When applied to skin, an elastomer in accordance with preferred embodiments of the invention can adhere to the skin and shrink as it dries. This can provide a skin tightening, lifting and wrinkle smoothening effect upon drying. This effect can temporarily mask the appearance of wrinkles.