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:
Jun. 22, 1993
Filed:
Jan. 29, 1992
Yasuhisa Tajiri, Tokyo, JP;
Takafumi Yamaji, Tokyo, JP;
Yasuo Okumura, Tokyo, JP;
Yasuo Tanizawa, Tokyo, JP;
Yoshio Nagae, Tokyo, JP;
NKK Corporation, Tokyo, JP;
NIHON Parkerizing Co., Ltd., Tokyo, JP;
Abstract
A lubricant composition effectively enhancing the press-formability, and corrosion-resistance of a zinc-plated steel material and providing a superior, anti-powdering property and degreasing comprises (A) 70 -97% by weight of a lubricant component comprising the sub-components of (a) a succinate of a C.sub.12-18 aliphatic alcohol, (b) a paraffin wax with a melting point of 45.degree. C. -55.degree. C. and (c) a C.sub.12-18 fatty acid ester of C.sub.6-10 aliphatic alcohol and/or a mineral oil, the weight ratio ((a)+(b))/(c) being 1/3 to 1/1 and the weight ratio (a)/(b) being 1/3 to 4/1, and (B) 3 to 30% by weight of a rust-inhibiting component comprising a sulfonates with C.sub.16 or more, a carboxylic acid with C.sub.12 or more and/or a salt of the carboxylic acid, and has a melting point of 25.degree. C. to 40.degree. C. and an acid value of less than 2.0.