Oxygen barrier layers for photopolymerizable elements

Gas separation: apparatus – Electric field separation apparatus – Electrode retaining or supporting means

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96 67, 96 50PL, 96 351, 96 86P, G03C 178

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active

040725278

ABSTRACT:
Photopolymerizable elements are provided which comprise: (1) A support, (2) an addition polymerizable photosensitive layer, and (3) a solid, water-permeable, oxygen barrier protective layer, non-strippable as an unsupported film, said layer covering the entire photosensitive layer and being coated from an aqueous solution of a water-soluble macromolecular organic polymer or copolymer, e.g., polyvinyl alcohol, having dispersed therein, finely divided solid particles of a water-insoluble polymer or copolymer selected from acrylic and alkacrylic polymers or copolymers and mixtures thereof, and copolymers of vinyl pyrrolidone and vinyl acetate.

REFERENCES:
patent: 2731347 (1956-01-01), Gray
patent: 3240604 (1966-03-01), Cook
patent: 3443946 (1969-05-01), Grabhofer
patent: 3458311 (1969-07-01), Alles
patent: 3539344 (1970-11-01), Russell

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