Abstract: A selective adhesion liquid silicone rubber composition is disclosed. The liquid silicone rubber composition comprises an organopolysiloxane (A) containing at least two silicon-bonded alkenyl groups per molecule, an organopolysiloxane (B) containing at least two silicon-bonded hydrogen atoms per molecule, a platinum based catalyst (C), an inhibitor (D), a silica filler (E), and an adhesion promoter (F). The organopolysiloxane (B) comprises organopolysiloxane (B1) and organopolysiloxane (B2), wherein organopolysiloxane (B1) contains siloxy units of the type (R2HSiO1/2)x where x?2. Organopolysiloxane (B2) contains siloxy units of the type (RHSiO2/2)z where z?2. Each R is independently selected from a hydrogen atom, or an aliphatic hydrocarbyl, aromatic hydrocarbyl, or organyl group. The inhibitor (D) is selected from the group consisting of acetylenic alcohols and their derivatives.

Abstract: The present invention relates to a method of preparing hydrophilic silicone gel adhesives by curing a silicone composition. The method includes forming the silicone composition by reacting a polyoxyethylene-organopolysiloxane copolymer having an average of at least 1 functional groups selected from, unsaturated hydrocarbon, hydroxyl, silanol, or combinations thereof and a polyoxyethylene-organopolysiloxane copolymer as cross-linker having an average of at least 2 silicon-bonded hydrogen atoms per molecule in the presence of a catalyst. The polyoxyethylene-organopolysiloxane copolymers react via hydrosilylation or coupling reaction.

Abstract: The present invention relates to a process of making a polymerizable hybrid polysiloxane or a polymerizable hybrid siloxane. The process includes reacting an organopolysiloxane or organosiloxane having an average of at least 3 silicon hydride (SiH) groups per molecule, a polyoxyethylene, and a catalyst. The process also optionally includes adding a stabilizer, a catalytic inhibitor, a solvent, and an unsaturated reactant selected from substituted and unsubstituted unsaturated organic compounds.

Abstract: Provided in various embodiments are high viscosity, shear-thinning silicone compositions that can be pattern coated directly onto a substrate. The silicone compositions may be prepared by mixing at least one organopolysiloxane, at least one SiH-containing organopolysiloxane, at least one emulsifying agent, a hydrosilyation catalyst and water. The silicone compositions may be applied on a substrate for use in medical devices or wound dressings.

Abstract: Provided in various embodiments are high viscosity, shear-thinning silicone compositions that can be pattern coated directly onto a substrate and silicone compositions having high-density particles suspended in an adhesive gel. The silicone compositions contain a thixotropic additive, such as a hydrogenated vegetable oil. The silicone compositions may be applied on a substrate for use in medical devices or wound dressings.