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:
Sep. 27, 1988
Filed:
Nov. 18, 1987
Applicant:
Inventor:
Joseph H Tazewell, Akron, OH (US);
Assignee:
The Firestone Tire & Rubber Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 52 ; 528 60 ; 528 63 ; 528 64 ; 521914 ;
Abstract
Improved crack growth resistance is obtained when glycerine is added to a non-cured urethane prepolymer system containing free NCO groups therein and cured with a metal halide salt complex of methylenedianiline. The prepolymer is made from a blend of a polyether polyol and a polyether intermediate having ethylene oxide end blocks thereon.
Tazewell, Joseph. (1988). Polyurethanes having improved crack growth resistance (U.S. Patent No. 4774313). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4774313
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile