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:
Jan. 04, 2022
Filed:
Aug. 24, 2017
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Nippon Steel Corporation, Chiyoda-ku, JP;
Naoki Nagase, Chiba, JP;
Hideo Sugii, Chiba, JP;
Keiji Noma, Narashino, JP;
Seikichi Kitabatake, Narashino, JP;
Isao Noguchi, Narashino, JP;
Takeshi Kubota, Chiyoda-ku, JP;
Shuichi Yamazaki, Chiyoda-ku, JP;
Eisuke Minematsu, Chiyoda-ku, JP;
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
NIPPON STEEL CORPORATION, Chiyoda-ku, JP;
Abstract
Provided are: a metalworking oil composition having excellent workability and rust inhibiting performance, which is prepared by blending (A) at least one carboxylate selected from a polyhydric alcohol ester of a monocarboxylic acid and a monohydric alcohol ester of a polycarboxylic acid, (B) a phosphorus-containing compound, and (C) a rust inhibitor, wherein the monocarboxylic acid has 9 or more and 21 or less carbon atoms, and the content of the carboxylate is 0.6% by mass or more based on the total amount of the composition; and a metalworking method using the composition.