Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Reexamination Certificate
2007-05-18
2011-11-15
Mulcahy, Peter D. (Department: 1764)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
C521S031000, C524S544000, C562S001000
Reexamination Certificate
active
08058319
ABSTRACT:
Described is a process to prepare fluoropolymer organic-liquid dispersions containing a homogeneous mixture of reacted and unreacted sulfonyl halide groups. The dispersions are useful in the preparation of crosslinked membranes.
REFERENCES:
patent: 3282875 (1966-11-01), Connolly et al.
patent: 3664915 (1972-05-01), Gore
patent: 3953566 (1976-04-01), Gore
patent: 3962153 (1976-06-01), Gore
patent: 4030988 (1977-06-01), Grot
patent: 4126589 (1978-11-01), Hamada et al.
patent: 4187390 (1980-02-01), Gore
patent: 4358545 (1982-11-01), Ezzell et al.
patent: 4433082 (1984-02-01), Grot
patent: 4453991 (1984-06-01), Grot
patent: 4731263 (1988-03-01), Martin et al.
patent: 4940525 (1990-07-01), Ezzell et al.
patent: 6025092 (2000-02-01), Doyle et al.
patent: 6090895 (2000-07-01), Mao et al.
patent: 6649703 (2003-11-01), Michot et al.
patent: 6733914 (2004-05-01), Grot et al.
patent: 7402351 (2008-07-01), Dai
patent: 7507771 (2009-03-01), Cao et al.
patent: 2002/0160271 (2002-10-01), Frech et al.
patent: 2002/0160272 (2002-10-01), Tanaka et al.
patent: 2004/0121210 (2004-06-01), Hamrock et al.
patent: 2004/0122256 (2004-06-01), Ikeda et al.
patent: 2005/0124769 (2005-06-01), Haring
patent: 2007/0008142 (2007-01-01), Crowe et al.
patent: 2007/0082247 (2007-04-01), Lee et al.
patent: 2007/0278094 (2007-12-01), Lousenberg
patent: 2007/0281198 (2007-12-01), Lousenberg
patent: 2007/0281199 (2007-12-01), Lousenberg
patent: 2007/0282023 (2007-12-01), Lousenberg
patent: 0 066 369 (1982-12-01), None
patent: 0 079 218 (1983-05-01), None
patent: 0 030 104 (1984-08-01), None
patent: 1 359 142 (2003-11-01), None
patent: 1359142 (2003-11-01), None
patent: 0 973 809 (2004-04-01), None
patent: 1 239 000 (2007-11-01), None
patent: WO 98/16581 (1997-10-01), None
patent: WO 98/51403 (1998-11-01), None
patent: WO 00/24709 (2000-05-01), None
patent: WO 01/27167 (2001-04-01), None
patent: WO-02/062749 (2002-08-01), None
patent: WO-2004/018526 (2004-03-01), None
patent: WO 2004/018526 (2004-03-01), None
patent: WO 2005/001978 (2005-01-01), None
patent: WO-2008/013601 (2008-01-01), None
International Search Report PCT/US2007/012507 , International Filing Date, May 24, 2007.
E.I. du Pont de Nemours and Company
Hu Henry
Mulcahy Peter D.
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