Protective overcoats for diazo type layers

Details Protective overcoats for diazo type layers Protective overcoats for diazo type layers

1990-03-15

1992-06-23

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430176, 430273, 430961, G03C 152

Patent

active

051242273

ABSTRACT:
It surprisingly has been found that a protective coating composition for diazo-containing materials can be prepared from a cellulose ester and microcrystalline silica. The coating compositions of the invention provide protection for diazo-containing materials from physical and chemical damage. In particular, the protective coating compositions of the invention protect the diazo-containing materials from abrasion.
The invention further relates to a method for providing a protective coating on a diazo phototool comprising coating at least the surface of the diazo phototool containing diazo material with a composition comprising a cellulose ester and microcrystalline silica.

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Pigment Handbook, vol. 1, pp. 157-159.

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