Light sensitive materials

Details Light sensitive materials Light sensitive materials

1975-12-01

1978-09-26

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 17A, 260 174CL, 260885, 526 15, 526 23, 526 40, 526 49, 526 9, 96115R, 528133, 528109, 528 87, 528 38, 528424, C08F 834

Patent

active

041170393

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 of a polymer, wherein --Z-- is --o-- or ##STR2## or ##STR3## 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 formula: ##STR4## wherein R, R.sub.1, R.sub.2 R.sub.3, and a having the above meanings, wherein X has the above meaning or is a halosulphonyl group and R.sub.4 has the above 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: 3843603 (1974-10-01), Gates

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