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US 4,132,553 AGranted
Color proofing guide
AssigneePolychrome Corporation
InventorsStephen E. Burkle, Albert S. Deutsch
Life of this patent
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Abstract
Light sensitive, high molecular weight diazo polymers useful for the manufacture of color proofing guides are herein provided. The novel diazo polymers of the instant invention have the generic formula: ##STR1## Where R is methyl or hydrogen X is methoxy, ethoxy or hydrogen Y is oxygen or sulfur Z is an anion of a sulfonic, carboxylic or phosphonic acid N is an integer from 8 to 970.
Claims3
A color proofing guide which comprises a transparent substrate having coated thereon a composition which is comprised of:
- (a) A light sensitive, high molecular weight diazo polymer having the formula:
- ##STR4## Wherein R is methyl or hydrogen X is methoxy, ethoxy or hydrogen
- Y is oxygen or sulfur
- Z is an anion of a sulfonic, carboxylic or phosphonic acid
- n is an integer from 8 to 970;
- and
- (b) an organic solvent soluble carrier resin;
- and
- (c) an organic solvent soluble dye which is non-reactant with the light sensitive polymer.
6 more elements
Dependencies are inferred from the claim text.