C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/5322
C08G 77/16 (2006.01) C08J 3/12 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2036993
POLYORGANOSILOXANE-BASED ELASTOMER POWDER AND METHOD FOR ITS PREPARATION Abstract of the Disclosure A polyorganosiloxane elastomer powder having alcoholic hydroxyl group indirectly bonded to a portion of the silicon atoms in said polyorganosiloxane is preferably produced by a method which mixes a polyorganosiloxane having at least 2 hydroxyl groups, organohydrogenpolysiloxane having at lest 2 silicon-bonded hydrogen atome per molecule, curing catalyst, and alcoholic hydroxyl group-containing organosilane to give a composition, then emulsifies the composition, then brings the emulsion into a gas or liquid having a temperature higher than that of the emulsion to cure the composition and separates the cured composition from the water.
Shimizu Koji
Yoshida Keiji
Dow Corning Toray Silicone Company Ltd.
Gowling Lafleur Henderson Llp
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