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:
Feb. 10, 2004
Filed:
Aug. 29, 2002
Applicant:
Inventors:
Norio Nakamura, Takefu, JP;
Shuichiro Shinohara, Takefu, JP;
Assignee:
Nissin Chemical Industry Co., Ltd., Fukui-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F 3/12 ; C04B 2/402 ; C04B 2/426 ;
U.S. Cl.
CPC ...
B01F 3/12 ; C04B 2/402 ; C04B 2/426 ;
Abstract
A dispersant composition comprising (A) 20-80% by weight of an acetylene glycol or ethoxylated acetylene glycol and (B) 20-80% by weight of a graft product of an allyl alcohol-maleic anhydride-styrene copolymer with a polyoxyalkylene monoalkyl ether, comprising (a) polyoxyalkylene monoalkyl ether units, (b) maleic anhydride units, and (c) styrene units, in a compositional ratio a:b:c of 25-40:25-40:25-40 in mole percent, and having a {overscore (Mw)} of 1,000-50,000 exerts improved dispersing, anti-foaming and viscosity-reducing effects, when used in small amounts in dispersing of inorganic particulates.