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. 27, 1996
Filed:
Aug. 19, 1994
Applicant:
Inventors:
Tatsuo Yata, Yokohama, JP;
Hideya Kinoshita, Yokohama, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521112 ; 521170 ; 521172 ;
Abstract
A flexible or semi-hard polyurethane foam is prepared from a blend containing a polyhydroxyl compound, an isocyanate, a blowing agent, a catalyst, and a foam stabilizer. A polyolefin polyol is used as the polyhydroxyl compound. A carboxy, epoxy or methacryl-modified organosilicone is used as the foam stabilizer. The resulting polyurethane foam is impermeable to water.