METHOD OF DISSOLVING WATER-SOLUBLE POLYMER

Title:

METHOD OF DISSOLVING WATER-SOLUBLE POLYMER

Document Type and Number:

WIPO Patent Application WO/2010/050416

Kind Code:

A1

Abstract:

A method of dissolving a water-soluble polymer which comprises diluting 2-30 times a primary aqueous solution (8) containing, dissolved therein, 0.3-1 mass% water-soluble polymer just before use to prepare a secondary aqueous solution and subjecting the secondary aqueous solution to an application as a polymeric coagulant, yield improver for papermaking, thickener, paper strength agent, etc. For diluting the primary aqueous solution to prepare the secondary aqueous solution, it is preferred to use an in-line mixer (4). By using the dissolution method, an aqueous water-soluble-polymer solution can be provided which does not decrease in viscosity and can be used over long.

Inventors:

INABA TAKAFUMI (JP)
LI WEI (JP)
TSUDUKI TETSUYA (JP)
MORI YOSHIO (JP)

Application Number:

PCT/JP2009/068276

Publication Date:

May 06, 2010

Filing Date:

October 23, 2009

Export Citation:

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Assignee:

MT AQUAPOLYMER INC (JP)
INABA TAKAFUMI (JP)
LI WEI (JP)
TSUDUKI TETSUYA (JP)
MORI YOSHIO (JP)

International Classes:

B01F1/00; B01D21/01; B01F3/08; B01F15/04; C02F11/147; D21H21/10

Foreign References:

JP2001213968A	2001-08-07
JP2000288555A	2000-10-17
JPS5013431A	1975-02-12
JPH08229378A	1996-09-10
JP2003001086A	2003-01-07
JP2003164742A	2003-06-10
JP2007069167A	2007-03-22

Other References:

NAOTAKA WATANABE ET AL.: "Atarashii Budomari Kojo Yakuhin "Micro Polymer Gel System" ni Tsuite", KAMI PULP GIJUTSU TIMES, March 1989 (1989-03-01), pages 17 - 21

Attorney, Agent or Firm:

TAKAHATA, YASUYO (JP)
Yasuyo Takahata (JP)

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