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. 28, 1990
Filed:
Oct. 17, 1988
Applicant:
Inventors:
David F Lewis, Monroe, CT (US);
Robert D Schenfele, Caldwell, NJ (US);
Thomas Winkler, Maywood, NJ (US);
Assignee:
GAF Chemicals Corporation, Wayne, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09J / ; G03C / ;
U.S. Cl.
CPC ...
106135 ; 430270 ; 430337 ; 430340 ; 430495 ;
Abstract
The invention relates to a light stabilizing and antioxidant coating for polyacetylenic recording media which comprises an aqueous composition of ascorbic acid, gelatin and less than 2% by weight of surfactant wherein the mole ratio of acid to gelatin is between about 1:1 and about 10:1 dissolved in from about 35 wt. % to about 80 wt. % of water.