Photographic material containing a temporary barrier layer applied from an organic solution
AssigneeAgfa-Gevaert
InventorsWerner Krafft, Gunter Helling, Guunther Matschke, Immo Boie
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AssigneeAgfa-Gevaert
InventorsWerner Krafft, Gunter Helling, Guunther Matschke, Immo Boie
Estimating the term…
A color photographic material for the dye diffusion transfer process contains a temporary barrier layer that is applied from organic solution and consists of a mixture of (a) 40 to 95% by weight of a copolymer of 40 to 80% by weight of monomer I (vinylidene chloride, dimethyl butadiene or dichlorobutadiene) 18 to 50% by weight of monomer II ((meth)acrylonitrile or alkyl (meth)acrylate) and 2 to 10% by weight of monomer III (olefinically unsaturated copolymerizable mono or dicarboxylic acids, sulfonic acids or phosphonic acids) and (b) 5 to 60% by weight of a homopolymer of alkyl acrylate, hydroxyalkyl acrylate, N-alkyl acrylamide, N-hydroxyalkyl acrylamide vinyl acetate, or polycarbonate or cellulose acetate, or a copolymer of 80 to 99% by weight of alkyl or hydroxyalkyl acrylate and 1 to 20% by weight of a copolymerizable acid.
In a color photographic material for a dye diffusion transfer process, which contains color providing compounds having at least one temporary barrier layer arranged between two layers which are permeable to alkali, said barrier layer consisting of a mixture of 40 to 95% by weight of a first polymer and 5 to 60% by weight of a second polymer applied from organic solution of said mixture, said first polmer being a copolymer of from 40 to 80% by weight of at least one comonomer I selected from the group consisting of vinylidene chloride, dimethyl butadiene and dichlorobutadiene;
Dependencies are inferred from the claim text.