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:
Mar. 31, 1981
Filed:
Sep. 21, 1979
Applicant:
Inventor:
Leo Ojakaar, Hockessin, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 1523 / ; 1523 / ; 156116 ; 528 73 ;
Abstract
White and colored tire sidewalls are made by fabricating a tire having a concentric groove on at least one sidewall and, after cleaning the groove and coating it with adhesive, filling the groove with a polyurethane composition based on 4,4'-methylenebis(cyclohexyl isocyanate) and one or more polyols, said composition also containing an adduct of an aliphatic diisocyanate with N-(t-butyl)diethanolamine and bis(2,2',6,6'-tetramethyl-4-piperidine) sebacate, then curing the composition at an elevated temperature. Pigmented sidewalls of this invention have high light and weather resistance and an exceptional resistance to contact staining.