Method of making a relief plate using a photopolymerizable recor

Details Method of making a relief plate using a photopolymerizable recor Method of making a relief plate using a photopolymerizable recor

1981-07-09

1983-05-24

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430281, 430916, 430923, G03C 500

Patent

active

043851096

ABSTRACT:
A photopolymerizable recording composition which comprises a mixture, containing a photoinitiator, of (a) a photopolymerizable olefinically unsaturated monomer and (b) an organic polymeric binder, wherein the photoinitiator is an acylphosphine oxide compound of the formula R.sup.1 R.sup.2 PO--CO--R.sup.3, where R.sup.1 and R.sup.2 are certain organic radicals and R.sup.3 is tert.-alkyl or a cyclic radical with two substituents in the ortho-position to the carbonyl group. The recording compositions have a high reactivity when irradiated with UV light and are used in particular for the preparation of printing plates, relief plates and photo-resists.

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patent: 3759807 (1973-09-01), Osborn et al.
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patent: 3832188 (1974-08-01), Bamba et al.
patent: 3845162 (1974-10-01), Hess et al.

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