Fluoropolymer process aids containing functional groups

Details Fluoropolymer process aids containing functional groups Fluoropolymer process aids containing functional groups

1991-09-03

1992-07-21

Seccuro, Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525166, 525175, 525176, 525178, 525179, 525182, 525183, 525200, 525199, 525 72, C08L 2712, C08L 2302, C08L 7700, C08L 6700

Patent

active

051323680

ABSTRACT:
The subject invention provides a composition having excellent extrusion characteristics comprising a difficulty-melt-processible polymer and 0.002-0.5 wt. % of one or more fluoropolymer process aids wherein the fluoropolymer has a fluorine to carbon ratio of at least 1:2, is capable of forming a die-coating film under the prevailing conditions of extrusion temperature and pressure, and contains an effective amount of polar functional polymer chain end groups, --W, wherein --W is selected from --COF, --SO.sub.2 F, --SO.sub.3 M, --OSO.sub.3 M, --COOR, and --COOM, wherein R is C.sub.1-3 alkyl and M is hydrogen, a metal cation, preferably an alkali or alkaline earth metal cation, or a quaternary ammonium cation.

REFERENCES:
patent: 3005795 (1961-10-01), Busse
patent: 3125547 (1964-03-01), Blatz
patent: 3294871 (1966-12-01), Schmitt et al.
patent: 3334157 (1967-08-01), Larsen
patent: 4753995 (1988-03-01), Chu et al.
patent: 4855360 (1989-08-01), Duchesne et al.
patent: 4904735 (1990-02-01), Chapman et al.

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