Lithographic printing plate precursors and method of use

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United States of America Patent

PATENT NO 11117412
APP PUB NO 20210094336A1
SERIAL NO

16589240

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Abstract

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Lithographic printing plate precursors are prepared with a unique aluminum-containing substrate and one or more radiation-sensitive imageable layers. The aluminum-containing substrate is prepared by three separate and sequential anodizing processes to provide an inner aluminum oxide layer having an average dry thickness (Ti) of 500-1,500 nm and a multiplicity of inner pores having an average inner pore diameter (Di) larger than 0 and <15 nm. A formed middle aluminum oxide layer has a dry thickness (Tm) of 60-300 nm and a multiplicity of middle pores of average middle pore diameter (Dm) of 15-60 nm, arranged over the inner aluminum oxide layer. A formed outer aluminum oxide layer comprises a multiplicity of outer pores having an average outer pore diameter (Do) of 5-35 nm and an average dry thickness (To) of 30-150 nm, arranged over the middle aluminum oxide layer. Dm is larger than Do that is larger than Di.

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Patent Owner(s)

  • EASTMAN KODAK COMPANY

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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
Mueller, Stephanie Clausthal-Zellerfeld, DE 6 3

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