Low-melting tetrafluorethylene copolymer and its uses

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525199, 526254, C08F21426, C08F21428

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active

052666395

ABSTRACT:
Copolymers of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP) having high HFP content and end-of-melting temperature, T.sub.m (end), as low as 200.degree. C. are disclosed. Exceptional performance as a processing aid in polyolefins results from having T.sub.m (end) of the TFE/HFP copolymer close to the processing temperature of the polyolefin. These TFE/HFP copolymers are soluble in fluorinated cyclic solvents. Copolymer/solvent systems copolymer at significant concentrations in selected solvents are fluid and stable at room temperature.

REFERENCES:
patent: 2549935 (1951-04-01), Sauer
patent: 2598283 (1952-05-01), Miller
patent: 2946763 (1960-07-01), Bro et al.
patent: 3013967 (1961-12-01), Rulon-Miller et al.
patent: 3051683 (1962-08-01), Mallouk
patent: 3125547 (1964-03-01), Blatz
patent: 3132124 (1964-05-01), Couture et al.
patent: 3196194 (1965-07-01), Ely, Jr. et al.
patent: 3265092 (1966-08-01), Ely, Jr. et al.
patent: 3461129 (1969-08-01), Middleton
patent: 3769252 (1973-10-01), Fujii et al.
patent: 3904575 (1975-09-01), Satokawa et al.
patent: 4075362 (1978-02-01), Concannon
patent: 4360488 (1982-11-01), Barham et al.
patent: 4380618 (1983-04-01), Khan et al.
patent: 4381384 (1983-04-01), Khan
patent: 4552925 (1985-11-01), Nakagawa et al.
patent: 4626587 (1986-12-01), Morgan et al.
patent: 4675380 (1987-06-01), Buckmaster et al.
patent: 4742122 (1988-05-01), Buckmaster et al.
patent: 4749752 (1988-06-01), Youlu et al.
patent: 4789717 (1988-12-01), Giannetti et al.
patent: 4864006 (1989-09-01), Giannetti et al.
patent: 4902456 (1990-02-01), Yen et al.
patent: 4904735 (1990-02-01), Chapman, Jr. et al.
patent: 5087680 (1992-02-01), Duan et al.
patent: 5106911 (1992-04-01), Chapman, Jr. et al.
Dissolution of Poly(tetrafluoroethylene) by Paul Smith and K. H. Gardner from Macromolecules, 1985, 18, 1222.

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