Fibre, thread bundle and cord from poly-p-phenylene terephthalam

Details Fibre, thread bundle and cord from poly-p-phenylene terephthalam Fibre, thread bundle and cord from poly-p-phenylene terephthalam

1980-06-02

1983-01-18

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

Multifilament yarns

57242, 57904, 428364, 428920, 428395, 264184, D02G 302, D01F 600

Patent

active

043686150

ABSTRACT:
A fibre, a thread bundle and a cord entirely or substantially consisting of poly-p-phenylene terephthalamide having an inherent viscosity of at least 2.5. The fibre has a tenacity of at least 10 cN/dtex, an elongation at break of at least 2.7% and an initial modulus of at least 300 cN/dtex, said fibre having an improved resistance to the action of heat as shown by a heat sensitivity index not higher than 12. Dipped cords formed from said fibre have a cord efficiency of at least 75%.

REFERENCES:
patent: 3227792 (1966-01-01), Rosenthal et al.
patent: 3414645 (1968-12-01), Morgan
patent: 3551535 (1970-12-01), Henderson
patent: 3671542 (1972-06-01), Kwolek
patent: 3684454 (1972-08-01), Henderson et al.
patent: 3767756 (1973-10-01), Blades
patent: 3869430 (1975-03-01), Blades
patent: 4018735 (1977-04-01), Nakagawa
patent: 4040371 (1977-08-01), Cooper et al.
patent: 4075269 (1978-02-01), Jones
patent: 4162346 (1979-07-01), Jones et al.
patent: 4199642 (1980-04-01), Cooper et al.

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