Abstract: The purpose of the present invention is to provide a coated silicone member manufacturing method which enables, even when a highly water-repellent silicone member having a water surface contact angle of more than 110° is processed at a low temperature, formation of, on the surface, a coating having a sufficiently low surface contact angle with respect to an aqueous solution containing a salt and a protein. The present invention provides a coated silicone member manufacturing method comprising: (A) a degradative reaction step for degrading the surface of a silicone member; (B) a contact step b for bringing a solution b containing a polycarbodiimide into contact with the surface-degraded silicone member; and (C) a contact step c for bringing a solution c containing a polymer C into contact with the surface-degraded silicone member. The polymer C has an alkyl amide group and hydroxyl group.

Abstract: A coating agent can be applied to various materials without using radiation, and a medical material using the same. The coating agent containing a copolymer that contains: a monomer unit (unit A) containing a Si—O bond; a vinyl carboxylate monomer unit (unit B); and a monomer unit (unit C) containing a hydrophilic group.

Abstract: The present invention provides a contact lens composition that is polymerizable in a mold and that can easily be peeled from a mold, a cured material of the contact lens composition, a contact lens in which the cured material of the contact lens composition is disposed in at least a center part thereof, and a method for manufacturing the contact lens. This contact lens composition contains (a) a polymerizable crosslinking agent having a multi-ring alicyclic hydrocarbon structure and (b) silicone having a radical polymerizable group.

Abstract: A transparent resin composition is provided which contains at least (A) a siloxane resin, (B) an organic solvent, and two or more kinds of (C) surfactants, wherein the surfactants include (C1) a silicone-modified acrylic surfactant and (C2) a thermally decomposable fluorine-containing surfactant, and the total content of the surfactants (C1) and (C2) is 50-500 ppm with respect to the transparent resin composition. Further provided is a transparent resin composition from which a transparent coating film, that suppresses pin hole or unevenness and has a good appearance and an excellent adhesion property to an inorganic film or an organic film, can be formed even when coated by spray coating or inkjet coating.

Abstract: Disclosed is a medical device including a substrate and a polymer layer, wherein the polymer layer is provided on at least a part of a surface of the substrate and satisfies the following requirements: (a) a water content of the medical device in hydrated state is in a range of 28% by mass or more and 50% by mass or less; (b) the substrate has a 2-alkoxyethyl group; and (c) the polymer layer contains one type of a carboxylic acid group-containing polymer and one type of a copolymer having an amide structure. The present invention provides a medical device capable of maintaining surface wettability for a long time.

Abstract: The present invention provides a contact lens composition that is polymerizable in a mold and that can easily be peeled from a mold, a cured material of the contact lens composition, a contact lens in which the cured material of the contact lens composition is disposed in at least a center part thereof, and a method for manufacturing the contact lens. This contact lens composition contains (a) a polymerizable crosslinking agent having a multi-ring alicyclic hydrocarbon structure and (b) silicone having a radical polymerizable group.

Abstract: A negative photosensitive resin composition is provided which contains (A) a siloxane resin having a radically polymerizable group and a carboxyl group and/or a dicarboxylic acid anhydride group, (B) a reactive monomer, (C) a radical photopolymerization initiator, (D) silica particles and (E) a siloxane compound having an oxetanyl group. The present invention provides a negative photosensitive resin composition which is capable of forming a cured film that has high glass surface strength, while exhibiting excellent adhesion to an inorganic film or to an organic film.

Abstract: A transparent resin composition is provided which contains at least (A) a siloxane resin, (B) an organic solvent, and two or more kinds of (C) surfactants, wherein the surfactants include (C1) a silicone-modified acrylic surfactant and (C2) a thermally decomposable fluorine-containing surfactant, and the total content of the surfactants (C1) and (C2) is 50-500 ppm with respect to the transparent resin composition. Further provided is a transparent resin composition from which a transparent coating film, that suppresses pin hole or unevenness and has a good appearance and an excellent adhesion property to an inorganic film or an organic film, can be formed even when coated by spray coating or inkjet coating.

Abstract: The present invention provides a negative photosensitive resin composition including the following (a) to (d): (a) metallic compound particles, (b) a polysiloxane compound, (c) a compound having at least 1 group containing an ?,?-unsaturated carboxylate ester structure, and (d) a photopolymerization initiator, the composition also including (e) a compound containing maleimide group.

Abstract: The present invention provides a negative photosensitive resin composition including the following (a) to (d): (a) metallic compound particles, (b) a polysiloxane compound, (c) a compound having at least 1 group containing an ?,?-unsaturated carboxylate ester structure, and (d) a photopolymerization initiator, the composition also including (e) a compound containing maleimide group.

Abstract: The present invention is a siloxane-based resin composition including a siloxane-based resin and an imidosilane compound having a specific structure. Moreover, the present invention is a siloxane-based resin composition including a siloxane-based resin which is a reactive product to be obtained by hydrolyzing an alkoxysilane compound and an imidosilane compound having a specific structure and then making the resulting hydrolysate undergo a condensation reaction. According to the present invention, it is possible to form a cured film excellent in adhesion.

Abstract: The present invention is a siloxane-based resin composition including a siloxane-based resin and an imidosilane compound having a specific structure. Moreover, the present invention is a siloxane-based resin composition including a siloxane-based resin which is a reactive product to be obtained by hydrolyzing an alkoxysilane compound and an imidosilane compound having a specific structure and then making the resulting hydrolysate undergo a condensation reaction. According to the present invention, it is possible to form a cured film excellent in adhesion.

Abstract: A positive photosensitive siloxane composition having high photosensitivity and having such properties as high heat resistance, high transparency and low dielectric constant may be used to form a planarization film for a TFT substrate, an interlayer dielectrics or a core or cladding of an optical waveguide. The positive photosensitive siloxane composition includes a siloxane polymer, quinonediazide compound and solvent, and a cured film formed of the composition has a light transmittance per 3 ?m of film thickness at a wavelength of 400 nm of 95% or more.

Abstract: This invention provides a positive photosensitive siloxane composition having high photosensitivity and having such properties as high heat resistance, high transparency and low dielectric constant, used to form a planarization film for a TFT substrate, an interlayer dielectrics or a core or cladding of an optical waveguide. It is a positive photosensitive siloxane composition comprising a siloxane polymer, quinonediazide compound and solvent, characterized in that the light transmittance of the cured film formed of the composition per 3 ?m of film thickness at a wavelength of 400 nm is 95% or more.