Perfluorinated stripping agents for diffusion transfer...

Details Perfluorinated stripping agents for diffusion transfer... Perfluorinated stripping agents for diffusion transfer...

G - Physics

03

C

96/31

G03C 8/52 (2006.01)

Patent

CA 1186931

-0- PERFLUORINATED STRIPPING AGENTS FOR DIFFUSION TRANSFER ASSEMBLAGES Abstract of the Disclosure Photographic assemblages and processes are described wherein a certain stripping agent is empolyed to enable an image-receiving layer to be separated from the rest of the assemblage after processing. The stripping agent comprises a straight chain alkyl or polyethylene oxide perfluoroalkylated ester or perfluoroalkylated ether, and preferably has the following formula: Image wherein R1 is an alkyl or substituted alkyl group having from 1 to about 6 carbon atoms or an aryl or substituted aryl group having from about 6 to about 10 carbon atoms; Image R2 is H or R1; n is an integer of from about 4 to about 20; and x, y and z each idependently represents an integer of from about 2 to about 50. Less bulky black-and-white or color prints or transparencies can thereby be obtained from integral assemblages. Materials from the discarded layers may also be recycled.

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