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AssigneeDow Corning Toray Silicone Co., Ltd.
InventorsYoshitsugu Morita, Kazuo Kobayashi
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An emulsion of silicone oil or organic oil possesses excellent stability and contains cross-linked particles in drops of silicone oil or organic oil dispersed in water. The particles have an average diameter of 0.05 μm to 100 μm and are prepared by hydrosilylating a cross-linkable liquid composition of (A) an organic compound having at least two aliphatic unsaturated bonds in its molecule; (B) a silicon-containing organic compound having at least two silicon-bonded hydrogen atoms in its molecule; (C) a hydrosilylation reaction catalyst; and (D) an organopolysiloxane having at least one alkenyl group in its molecule. The particles are contained in drops of silicone oil or organic oil with an average diameter of 0.1 μm to 500 μm that are dispersed in water.
A process of preparing an emulsion of cross-linked particles in drops of silicone oil or organic oil by dispersing in water using a surface-active agent, a liquid crosslinkable composition comprising (A) an organic compound having at least two aliphatic unsaturated bonds in its molecule, (B) a silicon-containing organic compound having at least two silicon-bonded hydrogen atoms in its molecule, (C) a hydrosilylation reaction catalyst, and a non-crosslinkable silicone oil or organic oil, cross-linking the crosslinkable composition by hydrosilylation, the emulsion containing cross-linked particles with an average diameter of 0.05 μm to 100 μm in drops of silicone oil or organic oil with an average diameter of from 0.1 μm to 500 μm in water.
Dependencies are inferred from the claim text.