Process for producing preoxidized fibers from acrylic fibers

Details Process for producing preoxidized fibers from acrylic fibers Process for producing preoxidized fibers from acrylic fibers

1988-09-30

1990-02-06

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264130, 264 292, 264182, 264206, 264211, 26421115, 26421116, 427227, D01F 922, D01F 1108

Patent

active

048987000

ABSTRACT:
A process for producing preoxidized fibers, which comprises preoxidizing acrylic fibers having a fluorine-containing surface active agent and at least one phosphoric surface active agent selected from the group consisting of compounds represented by the following formulae (I), (II) and (III), and preoxidizing the acrylic fibers thus-obtained: ##STR1## wherein R.sub.1 represents an aliphatic hydrocarbon group having 1 to 17 carbon atoms, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, and each represents a hydrogen atom, a lower alkyl group, a hydroxyethyl group or a hydroxyisopropyl group, ##STR2## wherein R.sub.5, R.sub.6 and R.sub.7, which may be the same or different, each represents a hydrogen atom or a hydroxyethyl group.

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patent: 3810772 (1974-05-01), Uffner
patent: 3975482 (1976-08-01), Rulison
patent: 3980715 (1976-09-01), Szur
patent: 3997604 (1976-12-01), Foulletier et al.
patent: 4193880 (1980-03-01), Marshall
patent: 4536448 (1985-08-01), Ogawa et al.
patent: 4606737 (1986-08-01), Stein

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