Photographic element having overcoating of ionic polyester in hy

Details Photographic element having overcoating of ionic polyester in hy Photographic element having overcoating of ionic polyester in hy

1980-08-01

1981-11-03

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified backing or protective layer containing

430212, 430215, 430236, 430259, 430531, 430523, 430950, 430961, G03C 176

Patent

active

042986826

ABSTRACT:
Two-sheet diffusion transfer assemblages, photographic elements and dye image-receiving elements are described wherein an overcoat layer is present on the photographic element or the dye image-receiving element superposed thereon. The overcoat layer comprises either silica or an ionic polyester in a hydrophilic colloid which prevents spontaneous delamination during the lamination period, yet permits satisfactory peel-apart afterwards.

REFERENCES:
patent: 3053662 (1962-09-01), Mackey et al.
patent: 3376137 (1968-04-01), Farney
patent: 3591379 (1971-07-01), Plakunov
patent: 3652282 (1972-03-01), Land
patent: 3793023 (1974-02-01), Land
patent: 4056397 (1977-11-01), Krafft et al.
patent: 4097282 (1978-06-01), Noonan et al.
patent: 4190449 (1980-02-01), Naoi et al.

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