Abstract: The present invention relates to a photo-curable silicone composition comprising a release control additive which is an organopolysiloxane resin comprising Si—OH groups. In particular, the invention relates to a silicone composition comprising at least one organopolysiloxane A including at least one (meth)acrylate group, at least 25% by weight of an organopolysiloxane resin B comprising Si—OH groups, and at least one radical photoinitiator C. The compositions of the invention can be used to form release coatings.

Abstract: A crosslinkable silicone elastomer composition is described that includes a heat-resistant additive. In particular, a crosslinkable silicone elastomer composition is described that includes a heat-resistant additive that is cerium (IV) neodecanoate.

Abstract: Silicone compositions are described for the production of negative molds that include a silicone elastomer. The molds can be used in the production of molded articles.

Abstract: The present invention concerns type II photoinitiators for the free-radical crosslinking of silicone compositions, in particular acrylic silicone compositions. The present invention concerns a silicone composition C1 that can be crosslinked by exposure to radiation with a wavelength of between 300 and 450 nm, comprising:—at least one organopolysiloxane A comprising at least one methacrylate group bonded to a silicon atom, at least one organohydrogenopolysiloxane H comprising at least two, and preferably at least three hydrogen atoms each bonded to different silicon atoms, and—at least one free-radical photoinitiator P. The present invention also concerns the provision of a silicone composition that can be polymerized or crosslinked by free-radical process comprising a type II photoinitiator system suitable for crosslinking silicone compositions, in particular by exposure to radiation, and absorbing light radiation with a wavelength greater than 300 nm.

Abstract: The present invention concerns type II photoinitiators for the free-radical crosslinking of silicone compositions, in particular acrylic silicone compositions. The present invention concerns a silicone composition C1 that can be crosslinked by exposure to radiation with a wavelength of between 300 and 450 nm, comprising: —at least one organopolysiloxane A comprising at least one methacrylate group bonded to a silicon atom, at least one organohydrogenopolysiloxane H comprising at least two, and preferably at least three hydrogen atoms each bonded to different silicon atoms, and—at least one free-radical photoinitiator P. The present invention also concerns the provision of a silicone composition that can be polymerized or crosslinked by free-radical process comprising a type II photoinitiator system suitable for crosslinking silicone compositions, in particular by exposure to radiation, and absorbing light radiation with a wavelength greater than 300 nm.

Abstract: A system and method for forming a silicone composition C that is crosslinkable by exposure to radiation with a wavelength between 200 nm and 450 nm, having: at least one radical photoinitiator A; and at least one co-initiator B chosen from compounds having at least one hydrogen atom bonded to a silicon atom.

Abstract: Silicone compositions are described for the production of negative molds that include a silicone elastomer. The molds can be used in the production of molded articles.

Abstract: The present invention concerns type II photoinitiators for the free-radical crosslinking of silicone compositions, in particular acrylic silicone compositions. The present invention concerns a silicone composition C1 that can be crosslinked by exposure to radiation with a wavelength of between 300 and 450 nm, comprising: —at least one organopolysiloxane A comprising at least one methacrylate group bonded to a silicon atom, at least one organohydrogenopolysiloxane H comprising at least two, and preferably at least three hydrogen atoms each bonded to different silicon atoms, and —at least one free-radical photoinitiator P. The present invention also concerns the provision of a silicone composition that can be polymerized or crosslinked by free-radical process comprising a type II photoinitiator system suitable for crosslinking silicone compositions, in particular by exposure to radiation, and absorbing light radiation with a wavelength greater than 300 nm.

Abstract: A system and method for forming a silicone composition C that is crosslinkable by exposure to radiation with a wavelength between 200 nm and 450 nm, having: at least one radical photoinitiator A; and at least one co-initiator B chosen from compounds having at least one hydrogen atom bonded to a silicon atom.

Abstract: The present invention relates to a silicone composition C that is crosslinkable by exposure to radiation with a wavelength between 200 nm and 450 nm, comprising: at least one radical photoinitiator A; and at least one co-initiator B chosen from compounds comprising at least one hydrogen atom bonded to a silicon atom.

Abstract: The invention relates to a method for preparing polyorganosiloxanes functionalized by (meth)acrylate groups, preferably acrylate groups.

Abstract: There is provided a process for producing an organopolysiloxane A comprising at least one (meth)acrylate group, said process comprising the following steps: a) the following are reacted at a temperature of between 50 and 140° C., optionally between 70 and 130° C.: at least one organopolysiloxane B comprising at least one epoxy group, with acrylic acid or methacrylic acid or a mixture of the two, in the presence of a catalyst C which is a complex of iron in the oxidation state (III), of formula (1) below: [Fe(L1)3]??(1) in which the symbols L1, which may be identical or different, represent a ligand chosen from the group made up of: a ?-dicarbonylato anion or the enolate anion of a ?-dicarbonyl compound, a carboxylate anion and an alkoxide anion, and of at least one solvent, and b) the product obtained, which is said organopolysiloxane A or a mixture containing predominantly said organopolysiloxane A, is isolated.

Abstract: Silicone compositions are described for the production of negative molds that include a silicone elastomer. The molds can be used in the production of molded articles.

Abstract: The invention relates to a method for preparing polyorganosiloxanes functionalized by (meth)acrylate groups, preferably acrylate groups.

Abstract: The present invention concerns a method for coating a textile material with a silicone elastomer composition crosslinkable by condensation reactions, to produce a solid silicone elastomer, optionally in a thin layer, on a flexible support that can be made from a textile material, paper, polyvinyl chloride, polyester, polypropylene, polyamide, polyethylene, polyurethane, non-woven glass fiber fabric or polyethylene terephthalate.

Abstract: The present invention relates to a silicone composition C that is crosslinkable by exposure to radiation with a wavelength between 200 nm and 450 nm, comprising: at least one radical photoinitiator A; and at least one co-initiator B chosen from compounds comprising at least one hydrogen atom bonded to a silicon atom.

Abstract: There is provided a process for producing an organopolysiloxane A comprising at least one (meth)acrylate group, said process comprising the following steps: a) the following are reacted at a temperature of between 50 and 140° C., optionally between 70 and 130° C.: at least one organopolysiloxane B comprising at least one epoxy group, with acrylic acid or methacrylic acid or a mixture of the two, in the presence of a catalyst C which is a complex of iron in the oxidation state (III), of formula (1) below: [Fe(L1)3]??(1) in which the symbols L1, which may be identical or different, represent a ligand chosen from the group made up of: a ?-dicarbonylato anion or the enolate anion of a ?-dicarbonyl compound, a carboxylate anion and an alkoxide anion, and of at least one solvent, and b) the product obtained, which is said organopolysiloxane A or a mixture containing predominantly said organopolysiloxane A, is isolated.

Abstract: An article having antifouling properties and intended to be employed in aquatic uses, in particular marine uses. In particular there is provided an article having antifouling properties and intended to be employed in aquatic uses which comprises: a) a support, b) optionally, at least one primer coat on said support comprising at least one anticorrosive product, c) optionally, at least one intermediate primer coat promoting adhesion between the coats, d) at least one adhesion-promoting coat or tie coat, deposited on said primer coat or on said support when the primer coat is absent, and e) at least one antifouling coat or topcoat, deposited on said adhesion-promoting coat or tie coat.

Abstract: An article having antifouling properties and intended to be employed in aquatic uses, in particular marine uses, which comprises: a) a support, b) optionally, at least one primer coat on said support comprising at least one anticorrosive product, c) optionally, at least one intermediate primer coat promoting adhesion between the coats, d) at least one adhesion-promoting coat or tie coat, deposited on said primer coat or on said support when the primer coat is absent, and e) at least one antifouling coat or topcoat, deposited on said adhesion-promoting coat or tie coat.

Abstract: The present invention concerns a method for coating a textile material with a silicone elastomer composition crosslinkable by condensation reactions, to produce a solid silicone elastomer, optionally in a thin layer, on a flexible support that can be made from a textile material, paper, polyvinyl chloride, polyester, polypropylene, polyamide, polyethylene, polyurethane, non-woven glass fibre fabric or polyethylene terephthalate.