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. 25, 2007
Filed:
Oct. 02, 2003
Applicants:
Kenichiro Uda, Kanagawa, JP;
Tatsumi Harada, Kanagawa, JP;
Kazushige Fujiyoshi, Gifu, JP;
Inventors:
Assignee:
Yushiro Chemical Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 173/00 (2006.01); C10M 145/00 (2006.01); C08G 63/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a water-soluble lubricant for warm or hot metal forming, comprising a high polymer compound which comprises an imide group, which has a weight-average molecular weight of from 1,000 to 1,000,000. The water-soluble lubricants of the invention possess exceptional lubricity for reducing friction between a die and a workpiece, have a minimal adverse effect on the operating environment, and can readily be treated in wastewater.