Abstract: A photocurable composition including the following components (A) to (D), (A) a monomer having one (meth)acryloyl structure, (B) a crosslinking agent having two or more (meth)acryloyl structures, (C) an inorganic ultraviolet-blocking agent having a 50% volume cumulative particle size of 1 to 50 nm, and (D) a photopolymerization initiator in an amount of 0.05 to 1 part by weight, relative to total 100 parts by weight of components (A) and (B), wherein a part or all of component (A) is a hydrophilic monomer, and a content of the hydrophilic monomer is 70% by weight or more, relative to the total weight of components (A) and (B).

Abstract: Provided is an ultraviolet curable silicone composition capable of being ejected via inkjet ejection. The ultraviolet curable silicone composition contains: (A) a one-end polymerizable organopolysiloxane represented by the following formula (1) wherein each of R1, R2, R3, R4 and R5 independently represents a linear or branched alkyl group having 1 to 20 carbon atoms, or an aryl-containing group having 6 to 10 carbon atoms; R6 represents a divalent organic group having 2 to 20 carbon atoms; R7 represents an alkylene group having 2 to 20 carbon atoms; R8 represents a hydrogen atom or a methyl group; n is a number of 1 to 500; X represents an alkylene group having 2 to 20 carbon atoms; Y represents —OCH2CH2—, —OCH(CH3)CH2— or —OCH2CH(CH3)—; p is a number of not smaller than 1; Z is —O— or —NH—; and (B) a photopolymerization initiator.

Abstract: A light source device includes plural light-emitting diodes arranged on a plane. A viewing angle of each of the light-emitting diodes is less than 50° or more than 80°.

Abstract: A hydrophilic silicone particle containing a surfactant fixed by a chemical bond formed by radical polymerization to a surface of a silicone particle having a volume average particle size of 0.1 to 100 ?m and a method for producing the hydrophilic silicone particle, the method including fixing a hydrophilic group derived from a component (B) to a surface of a silicone particle by subjecting an emulsion to radical polymerization, the emulsion containing: (A) 100 parts by mass of an organopolysiloxane having a radical polymerization reactive group; (B) 0.5 to 50 parts by mass of a surfactant having a radical polymerization reactive group; (C) 0.1 to 5 parts by mass of a radical generator; and (D) 10 to 1000 parts by mass of water. A silicone particle may be readily dispersed in an aqueous material without the additional use of a dispersant (typically, a surfactant) and has a hydrophilic group.

Abstract: A silicone particle containing: a dialkylsiloxane unit represented by the following general formula (1), R42SiO2/2 (1), where, in the formula (1), R4s each independently represent a monovalent hydrocarbon group having 1 to 6 carbon atoms; and a poly(alkyleneoxyalkyl)methylsiloxane unit represented by the following general formula (2), where, in the formula (2), R1s each independently represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms, R2s each independently represent a divalent aliphatic group having 1 to 6 carbon atoms, and “n” is a number that satisfies 1?n?20, where the silicone particle has an oxyalkylene group in a surface thereof. A silicone particle may be readily dispersed in an aqueous material without the use of a dispersant or a surfactant, the silicone particle having a hydrophilic group.

Abstract: Provided are an excellently convenient ultraviolet-curable organopolysiloxane causing no surface curing inhibition even when cured in the atmosphere; a composition containing such organopolysiloxane; and a cured product of such composition. The organopolysiloxane is represented by the following formula (1): wherein each R1 independently represents a monovalent hydrocarbon group having 1 to 10 carbon atoms or a group represented by the following formula (2), each molecule has at least one group represented by the following formula (2), m is a number satisfying 1?m?10,000, wherein R2 represents a group having at least one of an acryloyl group, methacryloyl group, acryloyloxyalkyl group or methacryloyloxyalkyl group, R3 represents a divalent hydrocarbon group having 1 to 20 carbon atoms.

Abstract: A microfluidic channel made of a hydrophilic silicone resin includes a crosslinked material obtained by curing a composition containing a silicone macromer represented by the following general formula (1). Consequently, a microfluidic channel made from a resin having high oxygen permeability, where a surface after formation shows high hydrophilicity without a secondary treatment and the hydrophilicity is sustained for a long period of time.

Abstract: A photocurable composition including the following components (A) to (D), (A) a monomer having one (meth)acryloyl structure, (B) a crosslinking agent having two or more (meth)acryloyl structures, (C) an inorganic ultraviolet-blocking agent having a 50% volume cumulative particle size of 1 to 50 nm, and (D) a photopolymerization initiator in an amount of 0.05 to 1 part by weight, relative to total 100 parts by weight of components (A) and (B), wherein a part or all of component (A) is a hydrophilic monomer, and a content of the hydrophilic monomer is 70% by weight or more, relative to the total weight of components (A) and (B).

Abstract: The present invention is a radically curable organosiloxane graft polyvinyl alcohol polymer having structural units represented by both of the following general formula (1) and general formula (2). The present invention provides a radically curable organosiloxane graft polyvinyl alcohol polymer having general properties such as film-forming property and transparency, excellent handleability as a liquid material since solubility in an organic solvent is high, and both of solvent resistance and moldability of the obtained film.

Abstract: The present invention is a radically curable organosiloxane graft polyvinyl alcohol polymer having structural units represented by both of the following general formula (1) and general formula (2). The present invention provides a radically curable organosiloxane graft polyvinyl alcohol polymer having general properties such as film-forming property and transparency, excellent handleability as a liquid material since solubility in an organic solvent is high, and both of solvent resistance and moldability of the obtained film.

Abstract: An organosiloxane graft polyvinyl alcohol polymer contains a structural unit shown by the following general formula (1), wherein M1 and M2 represent a hydrogen atom, an acetyl group, or a siloxane group shown by the following general formula (2), provided that at least one of M1 and M2 is a siloxane group shown by the general formula (2); and A represents a single bond or a linking group, wherein R1 represents a monovalent organic group having 1 to 6 carbon atoms; R2, R3, and R4 each represent a monovalent organic group having 1 to 6 carbon atoms or a siloxy group shown by —OSiR5R6R7, where R5, R6, and R7 each represent a monovalent organic group having 1 to 6 carbon atoms; “n” represents an integer of 1 to 10; and “a” represents an integer of 0 to 2.

Abstract: The present invention is an organosiloxane graft polyvinyl alcohol polymer containing a structural unit shown by the following general formula (1), wherein M1 and M2 represent a hydrogen atom, an acetyl group, or a siloxane group shown by the following general formula (2), provided that at least one of M1 and M2 is a siloxane group shown by the general formula (2); and A represents a single bond or a linking group. There can be provided an organosiloxane graft polyvinyl alcohol polymer that has general characteristics such as film-forming property and transparency as well as high solubility with respect to an organic solvent and excellent handleability as a liquid material.

Abstract: The invention provides a TRIS-containing vinylic monomer which comprises one sole (meth)acryloyloxy group and a tris(trimethylsiloxy)silyl group covalently linked to the ethylenically-unsaturated group through a polyoxyethylene linker. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from a TRIS-containing vinylic monomer of the invention. In addition, the invention provides a method for making a TRIS-containing vinylic monomer of the invention.

Abstract: The invention provides a TRIS-containing vinylic monomer which comprises one sole (meth)acryloyloxy group and a tris(trimethylsiloxy)silyl group covalently linked to the ethylenically-unsaturated group through a polyoxyethylene linker. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from a TRIS-containing vinylic monomer of the invention. In addition, the invention provides a method for making a TRIS-containing vinylic monomer of the invention.

Abstract: The invention provides a TRIS-containing vinylic monomer which comprises one sole (meth)acryloyloxy group and a tris(trimethylsiloxy)silyl group covalently linked to the ethylenically-unsaturated group through a polyoxyethylene linker. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from a TRIS-containing vinylic monomer of the invention. In addition, the invention provides a method for making a TRIS-containing vinylic monomer of the invention.

Abstract: Surfaces of silicone particles are hydrophilized by plasma treatment. The hydrophilized silicone particles are readily dispersible in aqueous materials without a need for dispersants, typically surfactants. In aqueous cosmetic applications externally applied to the skin such as skin care cosmetics, make-up cosmetics, antiperspirant cosmetics, and UV care cosmetics, for example, products free of skin irritation concern can be formulated because formulation is possible without a need for surfactants.

Abstract: Surfaces of silicone particles are hydrophilized by plasma treatment. The hydrophilized silicone particles are readily dispersible in aqueous materials without a need for dispersants, typically surfactants. In aqueous cosmetic applications externally applied to the skin such as skin care cosmetics, make-up cosmetics, antiperspirant cosmetics, and UV care cosmetics, for example, products free of skin irritation concern can be formulated because formulation is possible without a need for surfactants.

Abstract: The invention provides a TRIS-containing vinylic monomer which comprises one sole (meth)acryloyloxy group and a tris(trimethylsiloxy)silyl group covalently linked to the ethylenically-unsaturated group through a polyoxyethylene linker. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from a TRIS-containing vinylic monomer of the invention. In addition, the invention provides a method for making a TRIS-containing vinylic monomer of the invention.

Abstract: A cosmetic product comprising a polymer having recurring units of formula (1): wherein R1 is independently an alkyl group or a fluorinated alkyl group having 1 to 12 carbon atoms, R2 is methyl group or hydrogen atom, R3 is a divalent saturated hydrocarbon group having 1 to 6 carbon atoms, letter a is an integer of 1 to 3, and X is a monovalent group represented by formula (i): wherein R4 is independently an alkyl group or a fluorinated alkyl group having 1 to 12 carbon atoms and letter b is an integer of 1 to 5.

Abstract: According to the present invention, a contact lens material being excellent in oxygen permeability and transparency, being capable of undergoing injection molding, having no water content and having flexibility is provided. The present invention also relates to a contact lens gel material having excellent oxygen permeability and transparency. Particularly, the present invention relates to a contact lens material comprising a polycarbonate resin derived from a bisphenol compound (A), a polysiloxane-substituted bisphenol compound (B) and a compound forming a carbonic acid ester.