Method for preparing coatings with solid curable compositions co

Details Method for preparing coatings with solid curable compositions co Method for preparing coatings with solid curable compositions co

1973-12-18

1976-04-13

Smith, Ronald H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 40, 427 41, 427 43, 427 44, 427 53, 427 54, 427259, 427264, 427265, 427266, 427270, 427271, 427275, 427287, 156 8, 156 13, 96 33, 96 351, 96 362, 96 363, 96 86P, 96115R, B05D 306, B05D 132, G03C 168

Patent

active

039505693

ABSTRACT:
A method for preparing coatings, particularly imaged surfaces such as photoresists, printing plates, etc. which includes coating the surface of a substrate with a solid curable composition containing liquid polyene and solid styrene-allyl alcohol copolymer based polythiol components, curing the composition by exposing selected areas thereof to a free radical generating source, e.g. actinic radiation and removing, e.g., by dissolving, the uncured, unexposed areas of the curable composition to bare the underlying substrate. The solid polythiol is a reaction product of a copolymer of styrene-allyl alcohol and a mercaptocarboxylic acid, e.g. .beta.-mercaptopropionic acid.

REFERENCES:
patent: 2584317 (1952-02-01), Aller
patent: 2630430 (1953-03-01), Shokal et al.
patent: 2760863 (1956-08-01), Plambeck, Jr.
patent: 2894938 (1959-07-01), Chapin et al.
patent: 3081210 (1963-03-01), Wolf et al.
patent: 3340236 (1967-09-01), Greenlee et al
patent: 3546009 (1970-12-01), Schneble, Jr. et al.
patent: 3573973 (1971-04-01), Drotar et al.
patent: 3582415 (1971-06-01), Gulla
patent: 3623879 (1971-11-01), Ketley et al.
patent: 3664899 (1972-05-01), Wright et al.
patent: 3794510 (1974-02-01), Scala et al.

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