Lithographic printing plate precursors and method of use

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United States of America Patent

PATENT NO 11813884
SERIAL NO

17189497

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Abstract

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Lithographic printing plate precursors have an aluminum-containing substrate prepared using two anodizing processes to provide an inner aluminum oxide layer of average dry thickness of 300-3,000 nm and a multiplicity of inner micropores of average inner micropore diameter of ≤100 nm. An outer aluminum oxide layer is provided with a multiplicity of outer micropores of average outer micropore diameter of 15-30 nm and a dry thickness of 30-650 nm. A hydrophilic layer is disposed on the outer aluminum oxide layer at 0.0002-0.1 g/m2 and has a (1) compound having an ethylenically unsaturated polymerizable groups; a —OM group connected directly to a phosphorus atom, wherein M represents hydrogen, sodium, potassium, or aluminum; and (2) one or more hydrophilic polymers having (a) recurring units comprising an amide group, and (b) recurring units having an —OM′ group that is directly connected to a phosphorus atom, wherein M′ represents hydrogen, sodium, potassium, or aluminum.

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Patent Owner(s)

  • EASTMAN KODAK COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Balbinot, Domenico Osterode, DE 14 18
Obenauf, Johannes Goslar, DE 1 1

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