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. 12, 1977
Filed:
Aug. 13, 1975
Applicant:
Inventors:
George E Mont, Springfield, MA (US);
James A Snelgrove, Monson, MA (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ;
Abstract
Disclosed herein is a method for stabilizing the viscosity of polyvinyl acetal resins, especially those resins used as interlayers for laminated safety glass. The disclosed process comprises incorporating a buffer having a pH in the range of from 3 to 7 into the plasticized polyvinyl acetal.