Title:
粒状固体のディスパージョン
Document Type and Number:
Japanese Patent JP4646366
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To effectively prevent slurry containing mineral particles from becoming flocculated by using a dispersant containing a specific water-soluble polymer, in a dispersion of granular solids in a medium containing water or at least one dispersant. SOLUTION: When a dispersion or slurry of mineral solids which tend to flocculate or precipitate or to be phased out, for example, slurry of calcium carbonate for paper manufacturing industry, is produced, a medium containing water and at least one dispersant is used. In this case, a dispersant containing a water-soluble polymer represented by formula I is used. In formula I, X is H, Na, K, Ca, Mg, NH4+ or A. A is a polymer, a copolymer or a water-soluble salt thereof in a polymerized state and including those represented by formula II (wherein, R1 is H, OH, an alkyl and the like; R2 is H, and alkyl, an alkoxy and the like and R3 is H, Na, K, an alkyl and the like).
Inventors:
Eve Ducini
Allen Dufour
Allen Dufour
Application Number:
JP2000234850A
Publication Date:
March 09, 2011
Filing Date:
August 02, 2000
Export Citation:
Assignee:
ROHM AND HAAS COMPANY
International Classes:
C09K23/14; C08J3/05; C08K3/22; C08K3/26; C08K3/34; C08L33/02; C08L35/00; C09K23/00; C09K23/34
Domestic Patent References:
| JP64027628A | ||||
| JP3343399B2 | ||||
| JP9100302A |
Attorney, Agent or Firm:
Patent Business Corporation Sender International Patent Office
Minoru Kondo
Hisashi Tsuji
Koji Hashimoto
Minoru Kondo
Hisashi Tsuji
Koji Hashimoto