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:
Apr. 12, 1977
Filed:
Feb. 05, 1976
Applicant:
Inventor:
Michael E Kimball, Norton, OH (US);
Assignee:
The Goodyear Tire & Rubber Company, Akron, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ;
Abstract
Polytetramethylene ether urethane having improved physical properties is produced by reacting polytetramethylene ether polyol with a toluene diisocyanate containing at least 50 percent 2,4 isomer, reacting at a temperature no greater than about 40.degree. C. to produce a prepolymer and curing the prepolymer with 2,2'-dithio dianiline having the formula ##STR1## at a temperature of 105.degree. C.