Aromatic polyamide filament having an enhanced weathering resist

Details Aromatic polyamide filament having an enhanced weathering resist Aromatic polyamide filament having an enhanced weathering resist

1995-03-20

1997-11-18

Dixon, Merrick

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428361, 428364, 428373, 428385, 428386, 428402, 428403, 260DIG21, 260DIG23, 260DIG30, B32B 1500

Patent

active

056885962

ABSTRACT:
An aromatic polyamide filament includes extremely fine inorganic material having a high refractive index of 2.0 or more and an extremely fine average particle size of 0.3 .mu.m or less and dispersed, in an amount of 0.1 to 5% based on the total weight of the filament, in at least a surface portion of an aromatic polyamide filament matrix; has an individual filament thickness of 0.5 to 50 deniers, a tensile strength of 18 g/d or more, an ultimate elongation of 3.5% or more and an initial modulus of 450 g/d; and exhibits an enhanced weathering resistance derived from the high ultraviolet ray-reflecting, shielding and absorbing properties of the extremely fine inorganic particles dispersed in the filament matrix.

REFERENCES:
patent: 3043709 (1962-07-01), Amborski
patent: 3102323 (1963-09-01), Adams
patent: 3320207 (1967-05-01), Roth et al.
patent: 3773884 (1973-11-01), Shimosaka et al.
patent: 3888821 (1975-06-01), Milford, Jr.
patent: 4075172 (1978-02-01), Ozawa et al.
patent: 5401562 (1995-03-01), Akao

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