Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including interlaminar mechanical fastener
Patent
1979-03-06
1980-11-11
Bell, James J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including interlaminar mechanical fastener
264171, 428253, 428364, 428365, 428374, 428397, 528293, D03D 1500
Patent
active
042333555
ABSTRACT:
A separable unitary composite fiber of the type having a substantially uniformly shaped transverse cross-section along its length and comprised of at least two different polymer components, one of which is soluble in a given solvent and the other of which is relatively insoluble in the given solvent; a plurality of segments of the relatively insoluble polymer component being isolated from each other by the intervening soluble polymer component in the transverse cross-section of the composite fiber. The composite fiber is characterized in that the soluble polymer component is a polyester comprised of 80 to 97% by mole of ethylene terephthalate units and 3 to 20% by mole of ethylene 5-sodium-sulfoisophthalate units, and the relatively insoluble polymer component is a fiber-forming polyester and/or polyamide.
REFERENCES:
patent: 3017686 (1962-01-01), Breen et al.
patent: 3117362 (1964-01-01), Breen
patent: 3671379 (1972-06-01), Evans et al.
patent: 3700545 (1972-10-01), Matsui et al.
patent: 3958066 (1976-05-01), Imamura et al.
Arai Hajime
Sato Yoshiaki
Bell James J.
Toray Industries Inc.
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