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Title:
PROCESS FOR PRODUCING AQUEOUS DISPERSION
Document Type and Number:
WIPO Patent Application WO/2004/067579
Kind Code:
A1
Abstract:
One or more (meth)acrylates having a polyfluoroalkyl group and a non-fluorinated polymerizable monomer are emulsified in the presence of a surfactant and a polypropylene glycol compound having a molecular weight of 250 to 5,000. The monomers are then copolymerized in the presence of a polymerization initiator to produce an aqueous dispersion. Even when the copolymer is one formed from (meth)acrylates having, as polyfluoroalkyl groups, two or more kinds of perfluoroalkyl groups including a C12 or higher perfluoroalkyl group, the aqueous dispersion prepared has excellent emulsion stability. The aqueous dispersion can hence be effectively used as a water-and-oil repellant, etc.

Inventors:
SAGAWA TOSHIMASA (JP)
TATSU HARUYOSHI (JP)
HORIUTI MASAYOSI (JP)
Application Number:
PCT/JP2004/000459
Publication Date:
August 12, 2004
Filing Date:
January 21, 2004
Export Citation:
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Assignee:
UNIMATEC CO LTD (JP)
SAGAWA TOSHIMASA (JP)
TATSU HARUYOSHI (JP)
HORIUTI MASAYOSI (JP)
International Classes:
C08F2/16; C08F2/44; C08F220/22; C08F220/24; C08L33/16; (IPC1-7): C08F2/16; C08F2/44; C08F220/22; C08L33/16
Domestic Patent References:
WO2000043462A12000-07-27
Foreign References:
JP2002275453A2002-09-25
JP2002241441A2002-08-28
JP2002256130A2002-09-11
JP2001098033A2001-04-10
JP2001106711A2001-04-17
JPH0859752A1996-03-05
JP2000160149A2000-06-13
JPH07179528A1995-07-18
JPH06166705A1994-06-14
JPH05263070A1993-10-12
JPH0517538A1993-01-26
Attorney, Agent or Firm:
Yoshida, Toshio (No.202 Hillside Ebisu Bldg., 21-11, Ebisuminami 1-chom, Shibuya-ku Tokyo 22, JP)
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