Solvent resistant halogenated aromatic polyester fibers and proc

Details Solvent resistant halogenated aromatic polyester fibers and proc Solvent resistant halogenated aromatic polyester fibers and proc

1980-11-19

1982-08-24

Woo, Jay H.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

81301, 264235, 264343, 264346, 528497, 528502, C08G 6318, D06M 1308

Patent

active

043462090

ABSTRACT:
Solvent resistant halogenated aromatic polyester fibers are prepared by first heat treating the fibers at substantially constant length at a temperature of from about 270.degree. to about 295.degree. C. for a period of from about 5 to about 60 minutes, and then further treating the fibers with perchloroethylene which is at a temperature of from about 80.degree. C. up to its boiling point for a period of at least about 15 minutes to produce halogenated aromatic polyester fibers having improved solvent resistance.

REFERENCES:
patent: 3481685 (1969-12-01), White
patent: 3616504 (1971-11-01), Otto
patent: 3617204 (1971-11-01), Pirie
patent: 3620666 (1971-11-01), Lenz et al.
patent: 3660554 (1972-05-01), Okamura
patent: 4065432 (1977-12-01), Frazer
patent: 4083929 (1978-04-01), Calundann et al.
patent: 4161470 (1979-07-01), Calundann et al.
patent: 4184996 (1980-01-01), Calundann et al.
patent: 4219461 (1980-08-01), Calundann et al.

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