Light-sensitive mixture and copying material produced therefrom

Details Light-sensitive mixture and copying material produced therefrom Light-sensitive mixture and copying material produced therefrom

1979-11-01

1981-06-23

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430189, 430191, 430165, 430926, G03C 160, G03C 154

Patent

active

042751390

ABSTRACT:
A positive-working light-sensitive copying material, in particular for the preparation of planographic printing plates, is described, the light-sensitive layer of which contains an ester or amide of a o-naphthoquinone diazide-sulfonic or -carboxylic acid, an alkali-soluble, water-insoluble phenolic resin and a condensation product of a hydroxybenzophenone and formaldehyde. The material is distinguished by an increased light-sensitivity.

REFERENCES:
patent: 3567453 (1971-03-01), Borden
patent: 3647443 (1972-03-01), Rauner et al.
patent: 3661582 (1972-05-01), Broyde
patent: 3969118 (1976-07-01), Stahlhofen et al.
patent: 4009033 (1977-02-01), Bakos et al.
patent: 4105450 (1978-08-01), Shinozaki et al.
patent: 4115128 (1978-09-01), Kita
patent: 4123279 (1978-10-01), Kobayashi
Chemical Abstracts, vol. 87, 1977, #76400x, (Stahlhofen et al.).
Chemical Abstracts, vol. 77, 1972, #95380a.

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