Polymers for increasing the viscosity of photosensitive resins

Details Polymers for increasing the viscosity of photosensitive resins Polymers for increasing the viscosity of photosensitive resins

1978-09-07

1979-09-18

Brammer, Jack P.

Gas separation: apparatus

Solid sorbent apparatus

With programmed, cyclic, or time responsive control means

96115R, 20415919, G03C 168, C08G 1800

Patent

active

041681738

ABSTRACT:
It has been found that high quality relief printing plates can be made using a photosensitive composition comprising at least one unsaturated polyester, at least one ethylenically unsaturated, addition polymerizable monomer, at least one photosensitive initiator and a poly(hydroxylether) derived from a diphenol and an epihalohydrin, such as bisphenol A-epichlorohydrin resin. The poly(hydroxylether) increases the viscosity of the photosensitive resin such that the resin is less likely to flow during platemaking process, thereby avoiding undesirable blemishes on the finished plate.

REFERENCES:
patent: 3556791 (1971-01-01), Suzuki et al.
patent: 3628963 (1971-12-01), Akamatsu et al.
patent: 3644120 (1972-02-01), Kai et al.
patent: 3652272 (1972-03-01), Thomas
patent: 3661576 (1972-05-01), Grary
patent: 3861921 (1975-01-01), Hoffman et al.

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