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:
Apr. 22, 2014
Filed:
Aug. 28, 2009
Toyoji Kakuchi, Hokkaido, JP;
Toshifumi Satoh, Hokkaido, JP;
Ryosuke Sakai, Hokkaido, JP;
Fumiaki Takagi, Chiba, JP;
Masami Yamanaka, Chiba, JP;
Toyoji Kakuchi, Hokkaido, JP;
Toshifumi Satoh, Hokkaido, JP;
Ryosuke Sakai, Hokkaido, JP;
Fumiaki Takagi, Chiba, JP;
Masami Yamanaka, Chiba, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
Provided is a water-based lubricant comprising a hyperbranch-type polyglycerol having an absolute molecular weight of from 5,000 to 500,000. The water-based lubricant has a small friction coefficient and is excellent in lubrication performance and defoamability, as compared with conventional water-based lubricants comprising an ethylene/propylene oxide copolymer, and is favorable, for example, for a water-based metal processing agent and a hydraulic pressure fluid.