Polymers of hexafluoropropene oxide and process of making

Details Polymers of hexafluoropropene oxide and process of making Polymers of hexafluoropropene oxide and process of making

1999-04-01

2000-03-07

Acquah, Samuel A.

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

Synthetic resins

From fluorine-containing reactant

528 26, 528 70, 528341, 528425, 525180, 525187, 525190, 525191, 568615, 524755, 524757, 524792, 524795, 524839, 524845, C08G 6522, C08K 506

Patent

active

060342072

ABSTRACT:
A hexafluoropropene oxide polymer of formula (1) having a dispersity Mw/mn of up to 1.10 is useful as a raw material for liquid rubber. In formula (1), R is --COF, --I, --Br, --CH.sub.2 OH, --CH.sub.2 OCH.sub.2 CH.dbd.CH.sub.2, --COOR.sup.1 or --CONR.sup.2 R.sup.3 wherein R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen or monovalent C.sub.1-20 hydrocarbon groups which may contain N, O, Si or S, or R.sup.2 and R.sup.3 form a ring with the N atom, Rf is a C.sub.1-6 perfluoroalkylene group or a C.sub.2-10 perfluorooxyalkylene group, and x+y=30 to 400. ##STR1##

REFERENCES:
patent: 3660315 (1972-05-01), Hill et al.
patent: 4356291 (1982-10-01), Darling
Hill, James T., Macromol. Sci.-Chem., A8(3), pp. 499-520 (1974).
Patent Abstracts of Japan, 07149889.
Patent Abstracts of Japan, 07165832.
Patent Abstracts of Japan, 09286853.
Patent Abstracts of Japan, 10147639.

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