Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Reexamination Certificate
2011-03-29
2011-03-29
Kelly, Cynthia H (Department: 1722)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
C430S273100, C430S286100, C430S281100
Reexamination Certificate
active
07914966
ABSTRACT:
Radiation-sensitive negative working element comprising (a) a substrate with a hydrophilic surface and (b) a layer on the hydrophilic surface of the substrate, wherein said layer comprises a modified polymer obtainable by reacting (i) a polymer with —COOH, —SO3H, —P03H2 and/or —PO4H2 in the side chains, wherein the polymer is soluble in aqueous alkaline solutions and the solubility is not changed by IR radiation, and (ii) a salt with an inorganic or organic cation, wherein the modified polymer is soluble in aqueous alkaline solutions and the solubility is not changed by IR radiation, said layer being soluble in aqueous alkaline developer, but is rendered insoluble in aqueous alkaline developer by IR radiation.
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Monk Alan S.
Savariar-Hauck Celin
Ullrich Rene
Eastman Kodak Company
Johnson Connie P
Kelly Cynthia H
Tucker J. Lanny
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