Processes for preparing protective coatings and relief structure

Details Processes for preparing protective coatings and relief structure Processes for preparing protective coatings and relief structure

1986-03-28

1987-09-29

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Forming nonplanar surface

430270, 430330, 430 18, 522905, 522904, 427 541, 427 531, G03C 500, B05D 306

Patent

active

046968903

ABSTRACT:
A material to which there is applied a polyamic acid ester obtained from aromatic tri-or tetracarboxylic acids which contain benzophenone groups and organic diamines is suitable for producing protective coatings or relief images. After it has been irradiated, the material can be subjected to a heat treatment to convert the polyamic acid ester into the polyimide.

REFERENCES:
patent: 3855273 (1974-12-01), Bilow
patent: 3926641 (1975-12-01), Rosen
patent: 4105518 (1978-08-01), McGinniss
Grant, Julius, ed., Hackh's Chemical Dictionary, 3rd ed, McGraw-Hill Book Company, Inc., New York, N.Y., 1944, pp. 62-63, 116, 347, 594, 641,711, 712, 915.
1982-1983 Aldrich Catalog/Handbook of Fine Chemicals, Aldrich Chemical Co., Milwaukee, Wisconsin, p. 130.
D. K. Mohanty et al., Polymer Preprints, 25, 19 (1984).

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