Photopolymerizable compositions a leuco dye and a leuco dye stab

Details Photopolymerizable compositions a leuco dye and a leuco dye stab Photopolymerizable compositions a leuco dye and a leuco dye stab

1988-10-06

1990-07-10

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430275, 430277, 430278, 430279, 430280, 430281, 430915, 430916, 430917, 522 12, 522 16, 522 23, G03C 176

Patent

active

049406477

ABSTRACT:
The invention comprises a photopolymerizable mixture comprising as the essential constituents a polymeric binder, a compound capable of forming a polymer by free-radical initiated polymerization, a photoinitiator, a leuco dye and a leuco dye stabilizer having at least one epoxy group. The mixture has a better shelf life in the dark than known compositions and is preferably used in the preparation of dry photoresists.

REFERENCES:
patent: 2760863 (1956-08-01), Plambeck, Jr.
patent: 3042575 (1962-07-01), Hartler
patent: 3060023 (1962-10-01), Burg et al.
patent: 3697280 (1972-10-01), Strilko
patent: 4171977 (1979-10-01), Hasegawa et al.
patent: 4271251 (1981-06-01), Aotani et al.
patent: 4485166 (1984-11-01), Herwig et al.
patent: 4598036 (1986-07-01), Iwasaki et al.
patent: 4632897 (1986-12-01), Barzynski et al.
patent: 4766055 (1988-08-01), Kawabata et al.

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