C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5333
C08L 75/04 (2006.01) A61L 33/00 (2006.01) A61L 33/06 (2006.01) C08L 83/04 (2006.01)
Patent
CA 1204544
Abstract of the Disclosure A stable polymer emulsion composition capable of giving a thromboresistant surface, said composition comprising polyurethane, a polydiorganosiloxane, and a cyclic ether, said polydiorganosiloxane being dis- persed as particles having an average particle diameter of 0.1 to 50 microns in a solution of the polyurethane in the cyclic ether, and at least a part of the surfaces of said particles being crosslinked. The said composition can be prepared by dispersing a polydiorganosiloxane having a hydroxyl or acetate end group as fine particles in a solution of polyurethane in a cyclic ether to form an emulsion, and reacting the polydiorganosiloxane with a crosslinking agent to crosslink at least a part of the surfaces of the particles in the presence of 10 to 500 ppm of water.
423597
Joh Yasushi
Kaneko Noriaki
Nagase Toshio
Nippon Zeon Co. Ltd.
Smart & Biggar
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