Process for producing a silicone elastomer emulsion and use thereof
First Claim
1. A process for producing a silicone elastomer emulsion comprising emulsifying(A) a vinyl endblocked polydiorganosiloxane, and(B) an organosilicon compound having silicon-bonded hydrogen atoms using water and surfactant to form an emulsion, adding a platinum catalyst, and heating the emulsion forming a latex of crosslinked silicone.
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Abstract
A latex of crosslinked silicone is prepared by emulsifying a vinyl endblocked polydiorganosiloxane and an organosilicon compound having silicon-bonded hydrogen atoms with water and surfactant, adding a platinum catalyst and then heating the emulsion to form the latex. Colloidal silica can be added to the latex to provide a product which is tougher. The water in the latex can be evaporated to provide an elastomer film. Coating the latex on a substrate, such as a textile or paper, provides an elastomeric coated substrate, which provides water repellency, insulation and release properties to the substrate.
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15 Claims
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1. A process for producing a silicone elastomer emulsion comprising emulsifying
(A) a vinyl endblocked polydiorganosiloxane, and (B) an organosilicon compound having silicon-bonded hydrogen atoms using water and surfactant to form an emulsion, adding a platinum catalyst, and heating the emulsion forming a latex of crosslinked silicone.
Specification