Techniques for the preparation of highly fluorinated polyethers

Details Techniques for the preparation of highly fluorinated polyethers Techniques for the preparation of highly fluorinated polyethers

2006-05-23

2006-05-23

Truong, Duc (Department: 1711)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C528S086000, C528S397000, C528S401000, C528S491000, C528S497000, C528S501000, C528S50200C, C528S503000

Reexamination Certificate

active

07049393

ABSTRACT:
A process for preparing a fluorinated poly(arylene ether) comprising the repeating unit:wherein n provides a molecular weight up to about 30,000 to 100,000, X represents one of following groups: none, ketone, sulfone, sulfide, ether, hexafluoroisopropylidene, αω-perfluoroalkylene, oxadiazole, and Y is 4,4′-(hexafluoroisopropylidene)-diphenyl, 4,4′-isopropylidene diphenyl, 3,3′-isopropylidene diphenyl, phenyl, or chlorinated phenol which process comprises reacting a bis(pentafluorophenyl) compound and a bisphenol or hydroquinone in the presence of a dehydrating agent and a polar aprotic solvent is disclosed. Polymers resulting from the process show good promise as new passive optic polymer waveguide materials.

REFERENCES:
patent: 4473684 (1984-09-01), Maresca et al.
patent: 4774311 (1988-09-01), Kelsey
patent: 4973653 (1990-11-01), Eldin
patent: 5114780 (1992-05-01), Mercer et al.
patent: 5115082 (1992-05-01), Mercer et al.
patent: 5155175 (1992-10-01), Mercer et al.
patent: 5179188 (1993-01-01), Mercer et al.
patent: 5204416 (1993-04-01), Mercer et al.
patent: 6136929 (2000-10-01), Han et al.
patent: 2002/0115815 (2002-08-01), Lee et al.
patent: 0 211 693 (1987-02-01), None
patent: 1219665 (2002-07-01), None
patent: 91 16369 (1991-10-01), None
patent: 91 16370 (1991-10-01), None

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