Polyester fibers and false twist-textured yarn comprising same

Details Polyester fibers and false twist-textured yarn comprising same Polyester fibers and false twist-textured yarn comprising same

2006-08-08

2006-08-08

Edwards, N. (Department: 1774)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

C428S395000, C528S272000, C528S287000, C528S286000, C528S308600, C524S706000

Reexamination Certificate

active

07087299

ABSTRACT:
Polyester fibers having an individual fiber thickness of 0.1 to 10 dtex are produced from a polyester polymer produced by polycondensing an aromatic dicarboxylate ester in the presence of a catalyst including a mixture of a Ti compound component (A) including at least one member selected from titanium alkoxides and reaction products of the titanium alkoxides with a specific type of carboxylic acids or anhydrides thereof, with a specific P compound component (B), and/or a reaction product of a Ti compound component (C) with a specific P compound component (D). The resultant fibers have a good color tone (a low b value) a stable drawing and false-twisting processability and exhibit excellent appearance and performance.

REFERENCES:
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patent: 5331032 (1994-07-01), Suzuki et al.
patent: 6593447 (2003-07-01), Yamamoto
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patent: WO 92/13119 (1992-08-01), None
Morrison Boyd, Organic Chemistry, p. 1272, 1987.

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