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:
May. 09, 1989
Filed:
May. 13, 1987
Elina Sandberg, Odsmal, SE;
Rolf Skold, Stenungsund, SE;
Berol Suisse S.A., Fribourg, CH;
Abstract
Aqueous concentrated cooling lubricants are provided in the form of a stable solution ready to use after dilution with water in processes for the mechanical working of aluminum and aluminum alloys, and containing as lubricating and corrosion inhibiting agents a combination of (a) a carboxylic acid R.sub.1 COOH, R.sub.1 having from about seven to about twenty-two carbon atoms, (b) a tertiary alkylalkanolamine having a molecular weight of less than 300 and (c) a water-soluble organic solubilizer having a molecular weight of less than 400, and a hydrocarbon group of at most 6 carbon atoms, the amounts of the carboxylic acid and the alkanolamine being selected to provide a base/acid equivalent ratio of less than 0.9.