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:
Jun. 26, 1990
Filed:
Apr. 10, 1989
Applicant:
Inventors:
George E Cartier, Springfield, MA (US);
Carl P Piretti, Collinsville, CT (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
4284253 ; 4284231 ; 4284244 ; 4284255 ; 428437 ;
Abstract
A transparent polymeric laminate of plasticized polyvinyl butyral sheet chemically linked by urethane groups to a thermoset polyurethane layer formed as the reaction product of a cross-linkable mixture containing diisocyanate and polyether polyol containing primary or secondary hydroxyl groups and having a molecular weight between about 250 to about 8000.