The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 1986
Filed:
Mar. 15, 1983
Nippon Zeon Co., Ltd, Tokyo, JP;
Abstract
A stable polymer emulsion composition capable of giving a thromboresistant surface, said composition comprising polyurethane, a polydiorganosiloxane, and a cyclic ether, said polydiorganosiloxane being dispersed 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.