Method for preparing low pilling effect polyester fiber products

Details Method for preparing low pilling effect polyester fiber products Method for preparing low pilling effect polyester fiber products

1974-12-27

1976-06-01

Woo, Jay H.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

260 75R, 264 22, 264176F, C08G 1800

Patent

active

039606864

ABSTRACT:
An improvement in the process of melt spinning ethylene terephthalate polyester to produce textile fibers with decreased pilling in the threads, fibers or fabrics made therefrom. The ethylene terephthalate is melt polymerized in the presence of a condensation catalyst to a final temperature of about 250.degree.- 300.degree.C and a final pressure of less than 10 mm mercury to form an anhydrous melt. A substituted cyclobutanedimethanol, preferably 2,4-diphenyl-cyclobutanedimethanol-1,3, is added to the melt-polymerization at a concentration of about 0.05 - 5 mole percent of the substituted cyclobutanedimethanol component. Melt spinning of the modified polyester is carried out and the fibers are irradiated with high energy light.

REFERENCES:
patent: 3102323 (1963-09-01), Adams
patent: 3329758 (1967-07-01), Morgan
patent: 3335209 (1967-08-01), Morgan
patent: 3525754 (1970-08-01), Berezin
patent: 3594350 (1971-07-01), Lofquist et al.
patent: 3852247 (1974-12-01), Vizurraga

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