Process for the manufacture of homopolyamide-4,6 fibers

Details Process for the manufacture of homopolyamide-4,6 fibers Process for the manufacture of homopolyamide-4,6 fibers

2005-06-28

2005-06-28

Edwards, N. (Department: 1774)

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

C428S395000, C264S176100, C264S211120, C264S210700, C528S335000

Reexamination Certificate

active

06911257

ABSTRACT:
The invention relates to a process for the manufacture of homopolyamide-4,6 fibers by melt spinning of homopolyamide-4,6, to fibers and multifilament yarns obtainable by the process and the use thereof for the reinforcement of rubber like in tire cords, V-belts etc. The invention further relates to a novel homopolyamide-4,6, a process for the manufacture thereof and the use of the new homopolyamide-4,6 for the manufacture of fibers, films and injection molded articles. The homopolyamide-4,6 fiber is manufactured by melt spinning of homopolyamide-4,6 having nascent morphology with a melting enthalpy of at least 140 J/g and a main melting temperature between 290 and 305° C.

REFERENCES:
patent: 2130948 (1938-09-01), Carothers
patent: 4446304 (1984-05-01), Gaymans et al.
patent: 4945152 (1990-07-01), Peerlkamp
patent: 5461141 (1995-10-01), Sheetz
patent: 38 094 (1981-10-01), None
patent: 207 539 (1987-01-01), None
patent: 210 511 (1987-02-01), None

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