Flame resistant, low pilling polyester fiber

Details Flame resistant, low pilling polyester fiber Flame resistant, low pilling polyester fiber

1991-01-04

1992-09-29

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

525116, 525117, 525120, 525133, 525135, 525708, C08G 6368, C08G 7902

Patent

active

051514940

ABSTRACT:
The invention is a polyester and a method for producing a polyester filament which has a combination of flame resistance and low pilling properties. The method comprises forming a polyester polymer from a mixture consisting essentially of terephthalate acid or dimethyl terephthalate, ethylene glycol, a chain branching agent having a functionality of at least 3 and a phosphinic acid in the amount between 0.5 and 20 mole percent of the terephthalate acid and monomer. In particular, the invention also comprises the enhanced fiber formed by the process, as well as the fabrics having a pilling of about 3 to less than 5 as measured in accordance with ASTM D-3512-82.

REFERENCES:
patent: Re30783 (1981-10-01), Kleiner et al.
patent: 3865783 (1975-02-01), Clutter

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