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. 23, 1989
Filed:
Jul. 25, 1988
Applicant:
Inventors:
Tadashi Katafuchi, Ichihara, JP;
Hiroo Mitazaki, Omiya, JP;
Seiichi Shido, Kisarazu, JP;
Yasunori Tomari, Ichihara, JP;
Kenji Onodera, Ichihara, JP;
Assignee:
Idemitsu Kosan Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 / ; 72 42 ;
Abstract
A lubricating oil for metal working comprises a base oil and a diester of a branched aliphatic dicarboxylic acid having from 12 to 28 carbon atoms and a straight chain aliphatic alcohol having from 1 to 6 carbon atoms. The lubricating oil is excellent in rolling properties and causes no heat scratching, and permits the production of rolled plates having good gloss. These properties are further improved by adding a monoester compound having from 13 to 48 carbon atoms to the above oil.