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. 18, 1981
Filed:
May. 14, 1980
Applicant:
Inventors:
Jack W Hutt, Tarzana, CA (US);
Fernando E Blanco, Arleta, CA (US);
Assignee:
Products Research & Chemical Corp., Burbank, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528 45 ; 427301 ; 427387 ; 4284255 ; 428429 ; 528 55 ; 528 58 ; 528 59 ;
Abstract
A polyurethane sealant including a polyurethane having terminal isocyanate groups and containing a dual curing catalysti of organic bismuth and organic tin, said polyurethane being the reaction product of a liquid poly (lower) alkylene polyol having a molecular weight of 6,000 or more and three to five hydroxyl groups and a sterically unhindered aromatic diisocyanate. The polyurethane sealant may be used in conjunction with a silane based primer and when applied to glass surfaces provides a high strength and rapidly curing seal.