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. 23, 1978
Filed:
Feb. 10, 1977
Applicant:
Inventors:
Kazuyoshi Mitamura, Yokohama, JA;
Hiroyuki Itoh, Yokohama, JA;
Assignee:
Nippon Oil Company Limited, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
148 28 ; 148 29 ; 252 74 ;
Abstract
Water-soluble polymers derived from the copolymerization of a conjugated diene and maleic acid and/or a maleic acid derivative having certain anionic and cationic components are disclosed. When dissolved in aqueous media, the polymers are useful as quenching agents for metals.