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. 24, 1988
Filed:
Mar. 17, 1986
Kazuhito Kenmochi, Chiba, JP;
Hideo Abe, Chiba, JP;
Toru Sasaki, Chiba, JP;
Takeshi Yoshimoto, Chiba, JP;
Hiroyuki Nagamori, Wakayama, JP;
Hiroyuki Matsuda, Kainan, JP;
Kao Corporation, Kobe, JP;
Kawasaki Steel Corporation, Kobe, JP;
Abstract
Novel cold rolling oils for steels comprise (A) 40 to 90 wt % of a monoester of an aliphatic carboxylic acid having 12 to 22 carbon atoms and an aliphatic alcohol having 1 to 12 carbon atoms, (B) 0.5 to 10 wt % of at least one of a dimer acid and a polymerized acid of a higher aliphatic unsaturated acid having 16 to 20 carbon atoms, (C) 2 to 40 wt % of a polyester having a molecular weight of 750 to 7500 and obtained by subjecting at least one of a dimer acid and a polymerized acid of a higher aliphatic unsaturated acid having 16 to 20 carbon atoms to condensation with a polyol under heating conditions and reacting remaining carboxyl groups of hydroxyl groups of the resulting polyester with an alcohol having 1 to 22 carbon atoms or an aliphatic acid having 12 to 22 carbon atoms, or 10 to 25 wt % of fat and fatty oils, and (D) 0.1 to 10 wt % of a polymer compound having nitrogen atoms in a molecule having a molecular weight of 1,000 to 1,000,000 such as a homopolymer or copolymer of monomers of the following general formula: ##STR1## in which R.sub.1 represents H or CH.sub.3, R.sub.2 and R.sub.3 independently represent H or an alkyl group having 1 to 3 carbon atoms. The cold rolling oils for steels have good lubricity, surface cleanability with excellent heat resistance and oxidative stability.