Title:
COMPOSITION CONTAINING AMPHOTERIC WATER-SOLUBLE POLYMER
Document Type and Number:
WIPO Patent Application WO/2005/068552
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a composition excelling in various coagulation properties exhibited with various sludges and paper making systems, especially excelling as a polymer coagulant; provide a sludge dehydrating agent excelling in dehydration performance in various sludges, especially excelling in granulation performance; and provide a novel yield improver capable of not only naturally realizing high yield ratio but also ensuring high texture of paper and further being easy in application method. [MEANS FOR SOLVING PROBLEMS] There is provided a composition comprising two or more types of amphoteric water-soluble polymers obtained by polymerization of a cationic radical-polymerizable monomer and an anionic radical-polymerizable monomer in the presence of a polysaccharide, as follows: 1. with respect to polymers as mentioned above, use of a polymer wherein the molar ratio of cationic radical-polymerizable monomer to anionic radical-polymerizable monomer (hereinbelow referred to as Ca/An) satisfies the relationship: Ca/An≥1 in combination with a polymer wherein the relationship: Ca/An<1 is satisfied, and 2. with respect to polymers as mentioned above, joint use of two polymers wherein the relationship: Ca/An≥1 is satisfied.
Inventors:
MORI YOSHIO (JP)
ADACHI KOICHI (JP)
TAKEDA KEN (JP)
TSUZUKI TETSUYA (JP)
ADACHI KOICHI (JP)
TAKEDA KEN (JP)
TSUZUKI TETSUYA (JP)
Application Number:
PCT/JP2005/000635
Publication Date:
July 28, 2005
Filing Date:
January 20, 2005
Export Citation:
Assignee:
TOAGOSEI CO LTD (JP)
MORI YOSHIO (JP)
ADACHI KOICHI (JP)
TAKEDA KEN (JP)
TSUZUKI TETSUYA (JP)
MORI YOSHIO (JP)
ADACHI KOICHI (JP)
TAKEDA KEN (JP)
TSUZUKI TETSUYA (JP)
International Classes:
B01D21/01; C02F1/56; C02F11/14; C08F251/00; C08L51/02; D21C5/02; D21H21/10; (IPC1-7): C08L51/02; C08F251/00; D21H17/45; D21H17/43; D21H21/10; B01D21/01; C02F11/14
Foreign References:
| JP2003175302A | 2003-06-24 | |||
| JPH08215686A | 1996-08-27 |
Other References:
See also references of EP 1721933A4
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