Method for making lithographic printing plates

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10363734
APP PUB NO 20190016110A1
SERIAL NO

16122000

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Abstract

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On-press developable, negative-working lithographic printing plate precursors are used to provide lithographic printing plates. Such precursors are prepared with a substrate and one or more negative-working, infrared radiation-sensitive imagable layers. The substrate is prepared by two separate anodizing processes to provide an inner aluminum oxide layer having an average dry thickness (Ti) of 650-3,000 nm and inner micropores having an average inner micropore diameter (Di) of <15 nm. A formed outer aluminum oxide layer comprises outer micropores having an average outer micropore diameter (Do) of 15-30 nm; an average dry thickness (To) of 130-650 nm; and a micropore density (Co) of 500-3,000 micropores/μm2. The ratio of Do to Di is greater than 1.1:1, and Do in nanometers and the outer aluminum oxide layer micropore density (Co) in micropores/μm2, are further defined by the outer aluminum oxide layer porosity (Po) as:

description='In-line Formulae' end='lead'0.3≤Po≤0.8description='In-line Formulae' end='tail'

wherein Po is 3.14(Co)(Do2)/4,000,000.

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Patent Owner(s)

  • EASTMAN KODAK COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blum, Oliver Richard Bovenden, DE 5 23
Kemmling, Jan-Phillip Bilshausen, DE 3 11
Merka, Oliver Gottingen, DE 5 11
Uhl, Benedikt Ulm, DE 2 9
Viehmann, Philipp Gottingen, DE 4 3

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