Protective coatings for polyacetylenic recording media
AssigneeGAF Chemicals Corporation
InventorsDavid F. Lewis, Robert D. Schenfele, Thomas Winkler
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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.
Claims16
A dry imageable polyacetylenic film recording medium having an imageable polyacetylenic layer coated with a dry mixture comprising a binder compatible with said imageable layer and an effective light stabilizing amount of ascorbic acid in a mole ratio of between about 1:1 and about 10:1, binder to acid.
The process which comprises forming between about 30 to about 99 weight % aqueous solution of a binder material compatible with the imaging layer of a polyacetylenic recording film and an effective light stabilizing amount of ascorbic acid;
- coating the surface of imageable polyacetylene crystals with a protective light stabilizing amount of said aqueous mixture at a temperature of between about 30.degree. C. and about 60.degree. C. and drying said coated surface.
Dependencies are inferred from the claim text.