Perfluorinated polymers

Details Perfluorinated polymers Perfluorinated polymers

2008-07-01

2008-07-01

Mulcahy, Peter D. (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S089000, C526S243000, C428S014000, C430S270100

Reexamination Certificate

active

07393906

ABSTRACT:
Amorphous perfluorinated homopolymers and copolymers of perfluorodioxoles of formula (IA):wherein R′Fis equal to RFor ORFwherein RFis a linear or branched perfluoroalkyl radical having 1-5 carbon atoms; X1and X2, equal to or different from each other, are F, CF3; said polymers having a dioxole content≧95% by moles, having the following property combination:Tg, measured according to the ASTM 3418 (DSC) method, from 180° C. to 195° C.;intrinsic viscosity, measured at the temperature of 30° C. in perfluoroheptane (Galden® D80) according to the ASTM D 2857-87 method, from 13 cc/g to 100 cc/g.

REFERENCES:
patent: 3865845 (1975-02-01), Resnick
patent: 4558141 (1985-12-01), Squire
patent: 4743658 (1988-05-01), Imbalzano et al.
patent: 4789717 (1988-12-01), Giannetti et al.
patent: 4864006 (1989-09-01), Giannetti et al.
patent: 4966435 (1990-10-01), Matsumoto et al.
patent: 4990283 (1991-02-01), Visca et al.
patent: 5051114 (1991-09-01), Nemser et al.
patent: 5378782 (1995-01-01), Grootaert
patent: 5495028 (1996-02-01), Navarrini et al.
patent: 5646223 (1997-07-01), Navarrini et al.
patent: 5883177 (1999-03-01), Colaianna et al.
patent: 5883477 (1999-03-01), Wilber
patent: 6723152 (2004-04-01), Bikson et al.
patent: 6828388 (2004-12-01), Tortelli et al.
patent: 2004/0242820 (2004-12-01), Arcella et al.
patent: 0 076 581 (1983-04-01), None
patent: 80187 (1983-06-01), None
patent: 0 633 257 (1994-06-01), None
patent: 633257 (1994-06-01), None
patent: 0 645 406 (1995-03-01), None
patent: 0 803 557 (1997-10-01), None
patent: 803557 (1997-10-01), None
patent: 1 256 592 (2002-11-01), None
WO 89/12240, published Dec. 14, 1989.
Pianca, Maurizio, et al., “End groups in Fluoropolymers.” Journal of Fluorine Chemistry 95, 1999, pp. 71-84.

Affiliated with

Also associated with

Rating

Perfluorinated polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Perfluorinated polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perfluorinated polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2748163