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. 19, 1987
Filed:
Oct. 24, 1985
Applicant:
Inventors:
Takao Tsuneki, Ebina, JP;
Shinji Ano, Yokohama, JP;
Takahiko Uchida, Yamato, JP;
Tomoyasu Imai, Kawasaki, JP;
Masaru Okamoto, Yamato, JP;
Hideo Ohtaka, Yokohama, JP;
Hiromi Murakami, Yokohama, JP;
Assignee:
Kurita Water Industries Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210701 ; 252180 ; 252181 ; 422 16 ; 422 17 ;
Abstract
A water treatment agent to be used by adding it to water systems, such as, those in boiler plant and water cooling circulation system, for preventing both corrosion and scale formation on the metal surfaces held in contact with water in the water systems, comprising, as effective components, a polymer product having maleic acid or maleic anhydride unit and a polymer product having acarylamide or methacrylamide unit.