Light-sensitive materials

Details Light-sensitive materials Light-sensitive materials

1978-01-04

1981-03-03

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

260 17A, 260 174CL, 525 59, 525 61, 525285, 525291, 525530, C08F26102, C08F26104, C08F28310

Patent

active

042542448

ABSTRACT:
A light sensitive material suitable for coating onto a support to produce a light sensitive plate for use in, for example, the manufacture of a printing plate comprises groups of the formula: ##STR1## attached to carbon atoms, wherein ##STR2## wherein R.sub.5 represents a hydrogen atom or an alkyl group; R is an aromatic radical; a is zero or unity; R.sub.1, R.sub.2 and R.sub.3 are hydrogen atoms, halogen atoms, cyano groups, or specified aliphatic or aromatic groups; X is a deactivating group; R.sub.4 is a hydrogen atom, a carboxyl group, a cyano group or a specified aliphatic or aromatic group; and Ph is a phenyl group. The material may be produced by reacting a polymer containing epoxide groups, hydroxyl groups, or primary and/or secondary amino groups with the halosulphonyl group of a compound having the forula: ##STR3## wherein R, R.sub.1, R.sub.2 R.sub.3, and a have the above meanings, wherein X has the above meaning or is a halosulphonyl group and R.sub.4 has the above mentioned meaning or, in the case where X is a deactivating group, is a halosulphonyl substituted group.

REFERENCES:
patent: 3053806 (1962-09-01), La Combe et al.
patent: 3821167 (1974-06-01), Asano
patent: 3821167 (1974-10-01), Gates
patent: 4117039 (1978-09-01), Gates et al.

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