Processing ethylene terephthalate/hexahydroterephthalate copolym

Details Processing ethylene terephthalate/hexahydroterephthalate copolym Processing ethylene terephthalate/hexahydroterephthalate copolym

1990-08-29

1991-12-03

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

264168, 2642107, 2642108, 26421115, 264234, 264342RE, D01F 684

Patent

active

050698435

ABSTRACT:
A process for improving the properties of fibers of a copolymer of ethylene terephthalate/hexahydroterephthlate units with a high proportion of hexahydroterephthalate units by a 2-stage drawing, crimping, relaxing process to provide stretchy filaments of high elongation accompanied by low shrinkage.

REFERENCES:
patent: 2071251 (1937-02-01), Carothers
patent: 2465319 (1949-03-01), Whinfield et al.
patent: 3099064 (1963-07-01), Haynes
patent: 3719976 (1973-03-01), Izawa et al.
patent: 4060516 (1977-11-01), Kuratsuji et al.
patent: 4082731 (1978-04-01), Knopka

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