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:
Aug. 02, 1977
Filed:
Nov. 06, 1974
Applicant:
Inventor:
Karlheinz Koch, Haan, DT;
Assignee:
Henkel & Cie G.m.b.H., Dusseldorf, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
252 493 ; 72 42 ; 2605 / ;
Abstract
Lubricants for the cold-working of aluminum and aluminum alloys applicable in aqueous solutions consisting of hydroxyalkyl-aminobutyric acids having the formula ##STR1## wherein R' and R' are members selected from the group consisting of hydrogen and alkyl having 1 to 20 carbon atoms with the proviso that the sum of carbon atoms in both R' and R' is from 6 to 20 and only one of R' and R' can be hydrogen; as well as aqueous preparations containing from 0.1 to 10% by weight of the hydroxyalkyl-aminobutyric acids and the method of cold-working aluminum and aluminum alloys employing the said aqueous preparation.