Binary acetal polymers useful in photosensitive compositions and

Details Binary acetal polymers useful in photosensitive compositions and Binary acetal polymers useful in photosensitive compositions and

1991-07-30

1992-12-08

Schofer, Joseph L.

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

Synthetic resins

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

525 60, C08F 800

Patent

active

051698978

ABSTRACT:
Novel binary acetal polymers are comprised of recurring units which include two six-membered cyclic acetal groups, one of which is unsubstituted or substituted with an alkyl or hydroxyalkyl group and the other of which is substituted with an aromatic or heterocyclic moiety. The binary acetal polymers are advantageously employed in photosensitive compositions in which they are utilized in combination with diazo resins. Such photosensitive compositions are especially well adapted for use in lithographic printing plates which can be developed with aqueous developing solutions.

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patent: 4741985 (1988-05-01), Aoai et al.
patent: 4940646 (1990-07-01), Pawlowski
patent: 4968745 (1990-11-01), Misra et al.
Vinyl Alcohol Polymers; Poly(vinyl Acetals): pp. 208-235.

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