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. 14, 1987
Filed:
Dec. 06, 1985
Applicant:
Inventors:
Assignee:
Saint-Gobain Vitrage, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; C03C / ;
U.S. Cl.
CPC ...
428 38 ; 156 99 ; 427164 ; 427165 ; 4284233 ; 4284256 ; 528 60 ; 528 66 ;
Abstract
A polyurethane coating layer, with self-repairing properties, for panes made of glass and/or plastic materials, which are exposed to atmospheric agents. The coating layer according to the invention is formed from a reactive mixture of a trifunctional isocyanate component such as the biurets or isocyanurates of 1,6 hexamethylenediisocyanate, having a content of about 15 to 25% by weight of NCO radicals and a polyalcohol component chosen from the plurifunctional polyester polyalcohols having about a 3 to 12% by weight content of OH radicals.