Adhesive-coated multifilament yarn of an aromatic polyamide

Details Adhesive-coated multifilament yarn of an aromatic polyamide Adhesive-coated multifilament yarn of an aromatic polyamide

1985-09-23

1987-03-24

Bell, James J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

57242, 57251, 428229, 428267, 428395, 428413, 428492, 428902, D03D 300

Patent

active

046524886

ABSTRACT:
A multifilament yarn of an aromatic polyamide, in particular poly-p-phenylene terephthalamide, is provided with an adhesive coating of a cured epoxy compound, the yarn having a free epoxide content not higher than 10 mmoles/kg. The yarn is made by spinning a solution of an aromatic polyamide into a coagulation bath and subjecting the resulting filaments to the subsequent steps of washing, applying a curable epoxy compound and one or more alkaline curing agents, curing and winding the yarn thus treated into a package. The resulting yarn can be processed into a reinforcing element for, e.g., tires in a one-step dipping process. A cord made from the yarn displays an improved resorcinol-formaldehyde-latex dip pickup.

REFERENCES:
patent: 3395529 (1968-08-01), Ray
patent: 4121901 (1978-10-01), Bourrain et al.
patent: 4259404 (1981-03-01), Gils
patent: 4343843 (1982-08-01), Johnson et al.
patent: 4368615 (1983-01-01), Lammers
patent: 4409055 (1983-10-01), Elmer
patent: 4455341 (1984-06-01), Harteman
patent: 4557967 (1985-12-01), Willemsen et al.
Chemical Abstracts, vol. 86, No. 16, Jul. 18, 1977, p. 67, No. 107, 927 H: Abstract of Japanese Patent Application No. 76 143 724, Asahi Chemical Industry Co., Ltd., 10-12-1976.

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