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. 26, 1989
Filed:
Dec. 23, 1987
Applicant:
Inventor:
William F Marwick, Byfield, GB;
Assignee:
Alcan International Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156196 ; 294695 ; 72 42 ; 156280 ; 156281 ; 156314 ; 156316 ; 156319 ; 252 34 ; 252 495 ;
Abstract
A metal-working lubricant comprises an aqueous emulsion of (a) a long-chain aliphatic ester, amide, alcohol or acid, and (b) as a fugitive emulsifier an ammonium or volatile amine salt of a long-chain aliphatic acid. On application to sheet, e.g. of aluminum metal with a chromate or anodic oxide protective surface layer, the water and ammonia or volatile amine evaporate to leave a storage-stable hydrophobic lubricant. The sheet can be formed or made into adhesively bonded structures of shaped components.