Photopolymerizable mixture, copying material containing same and

Details Photopolymerizable mixture, copying material containing same and Photopolymerizable mixture, copying material containing same and

1988-05-26

1993-03-30

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430285, 430287, 430325, 430330, 522 63, 522 67, 522 34, G03F 7037, G03F 7031

Patent

active

051983257

ABSTRACT:
A photopolymerizable mixture for producing relief structures composed of highly heat-resistant polymers is described which is composed essentially of a soluble prepolymer containing photosensitive radicals bound in an ester-like manner to carboxyl groups, monomers and a photoinitiator, wherein the photoinitiator carries at least one trihalomethyl group which reacts when exposed to light. Of advantage is the fact that, even after exposure times which are by a factor of 4 to 5 shorter compared with conventional photopolymerizable mixtures, sharp-edged resist images can be obtained with a resolution of less than 3 .mu.m.

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J. Kosar, "Light-Sensitive Systems: Chemistry and Application of Non-Silver Halide Photographic Processes", 1965, pp. 180-181.

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