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:
Aug. 14, 1979
Filed:
Oct. 07, 1977
Applicant:
Inventor:
David A Fabel, Springfield, MA (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428334 ; 428412 ; 428451 ; 428483 ; 428518 ; 428520 ; 4274 / ; 220D / ; 220D / ; 351 41 ;
Abstract
An article coated with an abrasion resistant coating is disclosed in which the coating comprises a polyvinyl acetal having an hydroxyl group content, calculated as polyvinyl alcohol, of from 35 to 50 percent by weight and silicic acid, the weight ratio of silicic acid to polyvinyl acetal being from 2:1 to 4:1.