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. 28, 1992
Filed:
Dec. 28, 1990
Hisamichi Matsuda, Amagasaki, JP;
Show Onodera, Nishinomiya, JP;
Takaharu Ishizaki, Amagasaki, JP;
Shigeru Wakano, Kobe, JP;
Tadashi Sakane, Amagasaki, JP;
Nippon Oil & Fats Co., Ltd., Tokyo, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Abstract
An organic lubricating coating composition for use in plastic deformation of a metal sheet comprises a maleic anhydride/styrene copolymer which has been at least partially esterified with one or more organic hydroxy compounds, or a salt of the esterified copolymer. The molar ratio of the maleic anhydride component to the styrene component in the copolymer is in the range of from 1:99 to 75:25. At least 10% by weight of the organic hydroxy compounds is comprised of a long-chain hydroxy compound containing from 10 to 30 carbon atoms.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile