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:
Dec. 31, 1985
Filed:
Oct. 19, 1983
Applicant:
Inventors:
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210698 ; 252180 ; 252181 ; 536105 ;
Abstract
The present invention relates to a scale inhibitor for water and aqueous systems. The scale inhibitor comprising an oxidized polysaccharide containing, as the essential units, carboxyl group-bearing units of the formula: ##STR1## where A is CH.sub.2 OR, R is H, (CH.sub.2).sub.n COOM or COOM, M is H, an alkali metal ion, or an ammonium group, and n is an integer from 1 to 3, obtained by the oxidative cleavage of polysaccharides containing 6-membered monosaccharide rings.