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, 1990
Filed:
Mar. 27, 1989
Applicant:
Inventors:
John A Baker, Allison Park, PA (US);
Rudolf Maska, Pittsburgh, PA (US);
James R Bodwell, Pittsburgh, PA (US);
Suryya K Das, Pittsburgh, PA (US);
Jerome A Seiner, Pittsburgh, PA (US);
Terence J Hart, Powell, OH (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524567 ; 524519 ; 524522 ; 524580 ; 524581 ; 524284 ;
Abstract
Disclosed herein is an improved vinyl chloride latex copolymer composition having good color stability, characterized in that it contains a small but effective amount of an alpha-olefin to provide color stability of films of the composition.