Polymeric timing layer for color transfer assemblages

Details Polymeric timing layer for color transfer assemblages Polymeric timing layer for color transfer assemblages

G - Physics

03

C

96/23, 96/32

G03C 8/54 (2006.01)

Patent

CA 1186543

Abstract of the Disclosure - ~hotographic assemblages and cover sheets are described employing a timing layer comprislng a physical mixLure of the following t~lo polymers: i) a first polymer comprising from about 5 to about 35 percent by weight of recurring units of an ethylenically unsaturated monomer, from about 0 to about 20 percent by weight of recurring units of an ethylenically unsaturated carboxylic acid, and from about 55 to about 85 percent by weight of recurring units of vinylidene chloride; and ii) a second polymer comprising from about 20 to about 70 percent by weight of recurring units of maleic anhydcide and from about 80 to about 30 percent by weight of recurring units of a vinyl ester or an alkene; the second polymer being present at a concentration of from about 2 to about 20 percent by weight of the mixture.

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