Highly hygroscopic polyamide fiber, and production and applicati

Details Highly hygroscopic polyamide fiber, and production and applicati Highly hygroscopic polyamide fiber, and production and applicati

1997-03-25

1999-07-13

Hampton-Hightower, P.

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

Synthetic resins

From carboxylic acid or derivative thereof

528170, 528322, 528332, 528335, 528336, 428395, 428396, C08G 6908, C08G 7310, B32B 2734

Patent

active

059228300

ABSTRACT:
A highly hygroscopic polyamide fiber formed from a polyamide compound containing a polyvinylpyrrolidone (in an amount of 3-15 wt %) which is synthesized in isopropyl alcohol as a solvent, contains pyrrolidone in an amount less than 0.1 wt %, and has a K-value of 20-70. This fiber contains pyrrolidone in an amount less than 0.1 wt % of the amount of polyvinylpyrrolidone. This fiber is characterized by a yellowness index lower than 10 before dyeing, a large difference between the maximum moisture absorptivity and the standard moisture absorptivity, and a low content of water-soluble components that are subject to leaching.

REFERENCES:
patent: 5683584 (1997-11-01), Wenthold et al.
Derwent Abstract: C 95-112237.
Derwent Abstract: C 95-112236.
JAP10 J07150415 Jun. 13, 1995.
JAP10 J07150414 Jun. 13, 1995.

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