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:
Jun. 09, 1987
Filed:
Sep. 19, 1986
Applicant:
Inventor:
Engelbert Pliefke, Wiesbaden, DE;
Assignee:
Hoeschst Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Int. Cl.
CPC ...
C25F / ;
U.S. Cl.
CPC ...
20412995 ;
Abstract
The present invention relates to a process for the electrochemical graining of aluminum or aluminum alloys useful for printing plate supports, in which process an acid electrolyte containing .beta.-diketo compounds is employed; preferred are hydrochloric or nitric acid with an acetylacetone admixture. The printing plate supports grained by the process possess a particularly uniform, pit-free and overall graining structure.
Pliefke, Engelbert. (1987). Process for the electrochemical graining of aluminum for use as printing (U.S. Patent No. 4671859). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4671859
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile