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
1986-11-21
1988-05-10
Brammer, Jack P.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430286, 430287, 430919, 430920, 522 25, G03C 176
Patent
active
047435283
ABSTRACT:
An imaging composition is disclosed comprised of an organic component containing ethylenic unsaturation sites and capable of selective hardening by addition at the sites of ethylenic unsaturation, an azinium salt activator, a photosensitizer having a reduction potential which in relation to the reduction potential of the azinium salt activator is at most 0.1 volt more positive, and an image enhancing amount of benzene substituted with an electron donating amino group and one or more groups capable of imparting a net Hammett sigma value electron withdrawing characteristic of at least +0.20 volt to said benzene ring.
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Specht, Martic, and Farid, "A New Class of Triplet Sensitizers", Tetrahedron, vol. 38, pp. 1203-1211, 1982.
Farid Samir Y.
Haley Neil F.
Moody Roger E.
Specht Donald P.
Brammer Jack P.
Eastman Kodak Company
Thomas Carl O.
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