The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 2021
Filed:
Oct. 01, 2019
Eastman Kodak Company, Rochester, NY (US);
Oliver Merka, Gottingen, DE;
Stephanie Mueller, Clausthal-Zellerfeld, DE;
Jan-Phillip Kemmling, Bilshausen, DE;
Oliver Richard Blum, Bovenden, DE;
EASTMAN KODAK COMPANY, Rochester, NY (US);
Abstract
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 (T) of 500-1,500 nm and a multiplicity of inner pores having an average inner pore diameter (D) larger than 0 and <15 nm. A formed middle aluminum oxide layer has a dry thickness (T) of 60-300 nm and a multiplicity of middle pores of average middle pore diameter (D) 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 (D) of 5-35 nm and an average dry thickness (T) of 30-150 nm, arranged over the middle aluminum oxide layer. Dis larger than Dthat is larger than D.