Superabsorbent-coated aramid yarn and a process for manufacturin

Details Superabsorbent-coated aramid yarn and a process for manufacturin Superabsorbent-coated aramid yarn and a process for manufacturin

1993-09-01

1994-08-30

Lusignan, Michael

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428395, 428483, D02G 300

Patent

active

053426860

ABSTRACT:
An aramid yarn, preferably poly(p-phenylene terephthalamide), is coated with a water swellable superabsorbent material. The swelling value of the yarn is at least 60. The superabsorbent provides water blocking capability to the yarn, so that it is suitable for use as a strength member, for example, in water tight optical communication cables. The yarn is made by successively treating an aramid yarn with a water-in-oil emulsion, a superabsorbent material being present in the water phase of the emulsion, and removing the liquid components from the treated yarn by evaporation.

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