Process of making poy polyester fiber

Details Process of making poy polyester fiber Process of making poy polyester fiber

1998-02-10

1999-10-12

Yoon, Tae

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

528167, 524603, D02G 300, C08G 7902

Patent

active

059652594

ABSTRACT:
The present invention is a pre-oriented, non-stretched polyester fiber spun with spooling speeds of at least 3,000 m/min., wherein the polyester is a copolymer comprised essentially of ethylene terephthalate units and up to 10 weight % of other dicarboxylic acids or other diols, and carboxy phosphonic acid units of the formula: ##STR1## wherein R is selected from C.sub.1-10 -alkylene, C.sub.1-10 -cycloalkylene or C.sub.6-10 -arylene, in a quantity corresponding to 30 to 500 ppm phosphorus, in relation to polyester. The invention also comprises a process for the production of this fiber.

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patent: 4966740 (1990-10-01), Reese
patent: 5034174 (1991-07-01), Reese
patent: 5340517 (1994-08-01), Koschinek et al.

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