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:
Jul. 16, 1991
Filed:
Sep. 18, 1990
Applicant:
Inventors:
Jean-Louis Bravet, Thourotte, FR;
Gerard Daude, Villenave D'Ornon, FR;
Noel Crux, Margy les Compiegne, FR;
Assignee:
Saint-Gobain Vitrage, Courbevoie, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 53 ; 528 76 ; 528 80 ; 528 85 ; 528499 ;
Abstract
A high optical quality polyurethane layer is manufactured by reactive pouring or reactive spraying of a reaction mixture comprising an aliphatic isocyanate component and a polyol component followed by a polymerization comprising the passage of the layer through a catalytic atmosphere containing at least one tertiary amine.