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Coated film assemblies |
| T995007 |
Coated film assemblies
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| Patent Drawings: | |
| Inventor: |
Mann |
| Date Issued: |
June 3, 1980 |
| Application: |
06/033,496 |
| Filed: |
April 26, 1979 |
| Inventors: |
Mann; David R. (Essex, GB2)
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| Assignee: |
Bexford Limited (London, GB2) |
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| U.S. Class: |
430/630; 430/937 |
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| Abstract: |
Photographic film bases and sensitized photographic films are produced by coating a supporting film, especially a linear polyester film such as a biaxially oriented and heat-set film of polyethylene terephthalate, with a subbing composition comprising a polymer of a vinyl halogenoester, such as vinyl mono-, di-, or trichloroacetate, which is then subjected to a surface modifying, e.g. corona discharge, treatment. Light-sensitive photographic emulsions adhere directly to the treated subbing layer without the need for an intermediate gelatin subbing layer. The vinyl halogenoester subbing polymer may be a copolymer formed with a softening temperature-lowering comonomer such as an alkyl acrylate, alkyl methacrylate, polyalkylene oxide itaconate or maleate, vinyl alkyl ether, vinyl ester, alkene, alkadiene or alkyl styrene, a suitable copolymer being 78/15/7 mole % vinyl monochloroacetate/ethyl acrylate/acrylamide. |
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