Abstract: Provided is a release coating composition including a combination of branched polyorganosiloxanes. The first branched siloxane in the combination is an MDQ siloxane of unit formula: (R13SiO1/2)a(R2R12SiO1/2)b(R12SiO2/2)c(SiO4/2)d, a?0, b>0, c?995, and d>0. The second branched siloxane in the combination is an MDT silsesquioxane of unit formula: (R13SiO1/2)e(R2R12SiO1/2)f(R12SiO2/2)g(R1SiO3/2)h, e?0, f>0, g?995, and h>0. Each R1 is independently a monovalent hydrocarbon group free of aliphatic unsaturation and each R2 is an aliphatically unsaturated hydrocarbon group. The release coating composition further includes a crosslinker having at least 3 silicon-bonded hydrogen atoms per molecule, a platinum group metal catalyst and an inhibitor.

Abstract: A method for making a pressure sensitive adhesive curable composition is performed at a temperature no greater than 35° C. The method includes the steps of 1) mixing starting materials including A) >0 to 40 weight parts of a polyorganosiloxane resin; B) 60 to <100 weight parts of a silanol-terminated polydiorganosiloxane C) >30% to <100% by weight, based on the combined weights of starting materials A, B, and C of an organic solvent, thereby forming a mixture; 2) adding to the mixture a starting material D) an amino-functional alkoxysilane; 3) adding, after step 2), a starting material E) a silyl phosphate compound, thereby preparing a pressure sensitive adhesive composition; and 4) adding to the pressure sensitive adhesive composition, a starting material comprising F) an organic peroxide compound, thereby forming the pressure sensitive adhesive curable composition.

Abstract: A silicone release coating composition is disclosed. The silicone release coating composition comprises: (A) an organopolysiloxane having at least two alkenyl groups in a molecule; (B) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule; (C) organic modified functional silica particles having an average particle size of 5 ?m to 15 ?m and a BET specific surface area of 600 m2/g to 800 m2/g; and (D) a hydrosilylation reaction catalyst. The silicone release coating composition can form a coating with a lower release force to sticky adhesive.

Abstract: A silicone release coating composition comprises: (A) 100 weight parts of an organopolysiloxane fluid having a viscosity at 25° C. of 50 to 10,000 mPa·s and an alkenyl content of 0.10 to 3.0 wt %; (B) 0.5-40 weight parts of a diorganopolysiloxane represented by the average structural formula (1): Rc3SiO(RbRcSiO2/2)n1(Rc2SiO2/2)n2SiRc3??(1) ?wherein Rb is an alkenyl group; Rc is an alkyl group or a phenyl group; n1 provides an alkenyl content of 0.05 to 0.80 wt. %; n2 is at least 1; and n1+n2 provides this component with a viscosity at 25° C. of 5,000 to 150,000 mPa·s; (C) an organohydrogenpolysiloxane that has a viscosity at 25° C. of 1 to 1,000 mPa·s, at least two silicon-bonded hydrogen atoms in each molecule, and an alkyl group or a phenyl group for its silicon-bonded organic groups; (D) a hydrosilylation reaction catalyst in a catalytic amount; (E) a surfactant; (F) water; and (G) an inhibitor.

Abstract: A novel silicone surfactant comprises a co-modified organopolysiloxane copolymer having a long chain alkyl group, a polyether group, and a specific average polymerization degree of its siloxane back-bone. The silicone surfactant can be used for an emulsifier (especially for a water-in-oil (W/O) type emulsifier), a surface treatment agent, a powder treatment agent, or a dispersant in a cosmetic composition or a medicament. A W/O emulsion composition comprising the silicone surfactant; a powder composition where the surface of the powder is treated using the silicone surfactant as a powder treatment agent; a powder composition further comprising an oil agent and having a form of powder in oil dispersion; and a preparation for external use, particularly a cosmetic composition or medicament, comprising the same; are also disclosed.

Abstract: Disclosed is an emulsion type silicone pressure sensitive adhesive composition and a process for the production thereof. Also provided is an emulsion type silicone pressure sensitive adhesive composition, comprising: (A) 100 parts by weight of a silicone pressure sensitive adhesive; (B) 1-30 parts by weight of an emulsifier selected from the group consisting of a polyvinylalcohol and a polyether modified MQ resin wherein M is R 3SiO 1/2, and Q is SiO 4/2, wherein R represents C 1-20 alkyl; (C) water; and (D) catalyst.

Abstract: This invention relates to solventless release coating organopolysiloxane composition and sheet-form substrate having cured release coating, providing a solventless release coating organopolysiloxane composition having a viscosity of 50 to 3,000 mPa s, comprising (A) 100 parts of an organopolysiloxane fluid having a viscosity at 25° C. of 10 to 1,000 mPa s and alkenyl content of 0.10 to 3.0 wt %; (B) 0.5 to 15 parts of a diorganopolysiloxane having a viscosity at 25° C. of 10,000 to 150,000 mPa s, and 0.05 to 0.30% of alkenyl groups at the pendant position of its siloxane-chain and trialkylsiloxy-terminals; (C) a prescribed quantity of an organohydrogenpolysiloxane; and (D) a hydrosilylation reaction catalyst. Also, a cured release coating-bearing sheet-form substrate that has a cured coating from this solventless release coating organopolysiloxane composition is provided.

Abstract: A silicone emulsion comprises: (A) a silicone compound comprising an anchorage additive for enhancing the adhesion to a polymer film substrate; (B) at least one surfactant; and (C) water. The anchorage additive is the reaction product of (A1) a fluid polyorganosiloxane containing at least one alkenyl group and at least one silanol group with (A2) a hydrolysable silane containing at least one epoxide group. A water-based anchorage additive comprises the silicone emulsion. A silicone release coating composition comprises: (X1) the silicone emulsion; and (X2) at least one curable silicone composition, e.g. a water-based silicone release coating composition. The curable silicone release coating composition may be applied to a sheet-form substrate and cured to form a release-coated layer having good release property and improved rub-off resistance on the substrate.