Photographic elements coated with protective overcoats

Details Photographic elements coated with protective overcoats Photographic elements coated with protective overcoats

1976-11-01

1978-05-30

Welsh, John D.

Gas separation: apparatus

Solid sorbent apparatus

Soluble or deliquescent type

427 44, 96 86P, 96 50PL, 20415919, 20415923, 20415916, G03C 100

Patent

active

040921735

ABSTRACT:
Photographic elements, such as still films, motion picture films, paper prints, microfiche, and the like, are provided with a protective overcoat layer which is permanently bonded to the element and serves to protect it from abrasion and scratches. The protective overcoat is formed by coating the element with a radiation-curable composition, comprising an acrylated urethane, an aliphatic ethylenically-unsaturated carboxylic acid and a multifunctional acrylate, and irradiating the coating to bond it to the element and cure it to form a transparent, flexible, scratch-resistant, cross-linked polymeric layer. Protective overcoat layers can be applied to the image-bearing side of the element or to the support side of the element or to both sides.

REFERENCES:
patent: 3689307 (1972-09-01), Johnson et al.
patent: 3689310 (1972-09-01), Johnson et al.
patent: 3719522 (1973-03-01), Johnson et al.

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