Process for preparing aqueous dispersion

Details Process for preparing aqueous dispersion Process for preparing aqueous dispersion

2004-01-21

2010-06-08

Cheung, William K (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348000, C526S318000, C526S318430

Reexamination Certificate

active

07732545

ABSTRACT:
An aqueous dispersion is prepared by subjecting (meth)acrylate containing a polyfluoroalkyl group and a polymerizable monomer containing no fluorine atom to an emulsification treatment in the presence of a surfactant and a polypropyleneglycol-based compound having a molecular weight of 250 to 5,000, followed by copolymerization reaction in the presence of a polymerization initiator. The resulting aqueous dispersion, even if prepared from (meth)acrylate copolymer containing mixed perfluoroalkyl groups including perfluoroalkyl groups having 12 or more carbon atoms as polyfluoroalkyl groups, has a distinguished emulsion stability and thus can be effectively used as a water and oil repellent, etc.

REFERENCES:
patent: 5639820 (1997-06-01), Kubo et al.
patent: 6180740 (2001-01-01), Fitzgerald
patent: 6387292 (2002-05-01), Saito
patent: 6610775 (2003-08-01), Oharu et al.
patent: 2003/0114547 (2003-06-01), Hara et al.
patent: B-4-32873 (1992-06-01), None
patent: 5-17538 (1993-01-01), None
patent: 5-263070 (1993-10-01), None
patent: B-6-74409 (1994-09-01), None
patent: 7-179528 (1995-07-01), None
patent: 8-59752 (1996-03-01), None
patent: A-11-255995 (1999-09-01), None
patent: 2000-160149 (2000-06-01), None
patent: 2001-98033 (2001-04-01), None
patent: 2002-241441 (2002-08-01), None
patent: 2002-256130 (2002-09-01), None
patent: 2002-275453 (2002-09-01), None
patent: WO 00/43462 (2002-07-01), None

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