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.

Provided is a thermoplastic resin composition and a molded article excellent in balance of color developability and low-temperature impact resistance, where a polyorganosiloxane-containing graft copolymer in which a rubber (A) containing a polyorganosiloxane (A1) and a vinyl polymer (A2) is grafted with a vinyl monomer (b), wherein the vinyl polymer (A2) includes 90 to 100% by mass of a monofunctional vinyl monomer (a1) and 10 to 0% by mass of a polyfunctional vinyl monomer (a2) with respect to 100% by mass of the vinyl polymer (A2), wherein the glass transition temperature of the homopolymer of the monofunctional vinyl monomer (a1) is 0 C. or higher, and the peak of tan of the polyorganosiloxane-containing graft copolymer is in the range of 125 C. to 90 C.

Provided is a thermoplastic resin composition and a molded article excellent in balance of color developability and low-temperature impact resistance, where a polyorganosiloxane-containing graft copolymer in which a rubber (A) containing a polyorganosiloxane (A1) and a vinyl polymer (A2) is grafted with a vinyl monomer (b), wherein the vinyl polymer (A2) includes 90 to 100% by mass of a monofunctional vinyl monomer (a1) and 10 to 0% by mass of a polyfunctional vinyl monomer (a2) with respect to 100% by mass of the vinyl polymer (A2), wherein the glass transition temperature of the homopolymer of the monofunctional vinyl monomer (a1) is 0 C. or higher, and the peak of tan of the polyorganosiloxane-containing graft copolymer is in the range of 125 C. to 90 C.

The invention is related to a colorant composition for the colored silicone hydrogel contact lens. The colorant composition improves the adhesion of the colorant to the surface of the silicon hydrogel contact lens and enhances the hydrophilicity and biocompatibility. The present colorant composition comprises a polydimethylsiloxane, at least one hydrophilic monomer and a polydopamine-modified colorant.

The invention is related to a colorant composition for the colored silicone hydrogel contact lens. The colorant composition improves the adhesion of the colorant to the surface of the silicon hydrogel contact lens and enhances the hydrophilicity and biocompatibility. The present colorant composition comprises a polydimethylsiloxane, at least one hydrophilic monomer and a polydopamine-modified colorant.

The invention is related to azetidinium-containing copolymers and vinylic monomers and their uses in formation of non-silicone hydrogel coatings on silicone hydrogel contact lenses.

A coating composition contains: (A) 60 to 99% by weight of a urethane-based resin emulsion having film-forming ability in terms of a solid content ratio; and (B) 1 to 40% by weight of a silicone-acrylic graft copolymer resin emulsion having an average particle size of 180 nm or less in terms of a solid content ratio, wherein a weight ratio of a polyorganosiloxane represented by a specific chemical formula to an acrylic acid ester unit or a methacrylic acid ester unit is 30:70 to 99:1.

A coating composition contains: (A) 60 to 99% by weight of a urethane-based resin emulsion having film-forming ability in terms of a solid content ratio; and (B) 1 to 40% by weight of a silicone-acrylic graft copolymer resin emulsion having an average particle size of 180 nm or less in terms of a solid content ratio, wherein a weight ratio of a polyorganosiloxane represented by a specific chemical formula to an acrylic acid ester unit or a methacrylic acid ester unit is 30:70 to 99:1.

The invention provides a class of amphiphilic branched macromers and the uses thereof. An amphiphilic branched polydiorganosiloxane macromer of the invention is produced from an ,-dimethacryloyl-terminated polydiorganosiloxane vinylic crosslinker comprising one or more ATRP-containing siloxane units having one substituent having an ATRP initiator by ATRP polymerization of one or more hydrophilic vinylic monomers. It comprises at least two polydiorganosiloxane polymer chains each having at most two terminal methacryloxy groups, dangling hydrophilic polymer chains each having a polymerizable or non-polymerizable terminal group, and one or more hydrophilic polymer chains as linkages between two polydiorganosiloxane chains. The present invention is also related to a silicone hydrogel contact lens, which comprises units derived from a polydiorganosiloxane-containing amphiphilic branched macromer of the invention.

The invention provides a class of amphiphilic branched macromers and the uses thereof. An amphiphilic branched polydiorganosiloxane macromer of the invention is produced from an ,-dimethacryloyl-terminated polydiorganosiloxane vinylic crosslinker comprising one or more ATRP-containing siloxane units having one substituent having an ATRP initiator by ATRP polymerization of one or more hydrophilic vinylic monomers. It comprises at least two polydiorganosiloxane polymer chains each having at most two terminal methacryloxy groups, dangling hydrophilic polymer chains each having a polymerizable or non-polymerizable terminal group, and one or more hydrophilic polymer chains as linkages between two polydiorganosiloxane chains. The present invention is also related to a silicone hydrogel contact lens, which comprises units derived from a polydiorganosiloxane-containing amphiphilic branched macromer of the invention.