Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1988-05-09
1989-10-24
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
430914, 430915, 430916, 430919, 430920, 522 25, 522 26, 522 63, G03C 172
Patent
active
048761753
ABSTRACT:
A photographic imaging system is disclosed comprised of a hardenable organic component containing ethylenic unsaturation sites and coinitiators for ethylenic addition. The coinitiators include an activator and a photosensitizer. The photosensitizer is a 6-tertiary amino-2-(Z--CH.dbd.)benzofuran dye, where Z represents the atoms providing an electron withdrawing carbonyl or sulfonyl group and completing a conjugated methine linkage extending from the electron withdrawing carbonyl group through the benzofuran to the electron donating 6-tertiary amino substituent to form a resonant dye chromophore. The photosensitizers bathochromically extend exposure response of the imaging system.
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Chen et al. U.S. Ser. No. 191,948, filed May 9, 1988 and commonly assigned, titled Novel Benzofuran Dyes.
Farid et al. U.S. Ser. Nos. 933,712, 933,658, 933,660, and 933,657, all filed Nov. 21, 1986, and commonly assigned (Now issued as Farid et al. U.S. Pat. Nos. 4,743,528; 4,743,529; 4,743,530; and 4,743,531).
Chen Chin H.
Farid Samir Y.
Fox John L.
Specht Donald P.
Chea Thorl
Eastman Kodak Company
Michl Paul R.
Thomas Carl O.
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