Production of improved polyester fibers for use in tires

Details Production of improved polyester fibers for use in tires Production of improved polyester fibers for use in tires

1974-06-24

1976-04-13

Husack, Ralph

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

156110A, 156331, 260 292TN, 427390, 427412, 428425, 428480, B32B 2508, B32B 2736, B32B 2740

Patent

active

039505901

ABSTRACT:
A procedure is provided for enhancing the thermal stability of a multifilament polyester fibrous material during use when incorporated in a rubber tire matrix. A non-uniform deposition of a polyether urethane polymer (as defined) is provided upon at least the outer surface of the polyester fibrous material intermediate the conventional inner coating of fiber finish and the conventional outer coating of adhesive. The preformed polyether urethane polymer is applied from an aqueous dispersion of the same (as described), and is deposited in a concentration of about 1 to 6 percent by weight of the resulting fibrous material. The enhanced thermal stability of the resulting polyester fibrous material conveniently may be demonstrated by a determination of the strength retention of the same following subjection to heat while incorporated in a rubber matrix.

REFERENCES:
patent: 3179547 (1965-04-01), Kigane et al.
patent: 3240659 (1966-03-01), Atwell
patent: 3294724 (1966-12-01), Axelrood
patent: 3552999 (1971-01-01), Shima et al.
patent: 3565844 (1971-02-01), Grace et al.
patent: 3748291 (1973-07-01), Bhakuni et al.

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