Free radical photosensitive compositions with improved sensitivi

Details Free radical photosensitive compositions with improved sensitivi Free radical photosensitive compositions with improved sensitivi

1976-01-26

1978-01-03

Louie, Jr., Won H.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 67, 96 90R, 96 48QP, 96 48R, G03C 532, G03C 152, G03C 176

Patent

active

040664597

ABSTRACT:
This invention relates to free-radical, non-silver, photosensitive films, particularly those suitable for optical development as described in U.S. Pat. No. 3,510,300. The invention comprises the incorporation of compounds which contain an imine (--C.dbd.N--) function and a hydroxyl group into otherwise known photosensitive compositions to improve optical development and to retard dark fogging so as to thereby provide aging stability to such compositions. Preferably, an additional improvement comprises provision of an overcoat for the photosensitive composition of this invention when in the form of thin films on a support such as a polyester or a paper sheet or glass plate. The overcoat acts to improve the shelf life and photosensitometric properties of the photosensitive composition.

REFERENCES:
patent: 3042515 (1962-07-01), Wainer
patent: 3394395 (1968-07-01), Mattor et al.
patent: 3442649 (1969-05-01), Rasch et al.
patent: 3697272 (1972-10-01), Ramins
patent: 3817752 (1974-06-01), Laridon et al.
patent: 3843367 (1974-10-01), Schranz

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