Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including interlaminar mechanical fastener
Patent
1988-05-02
1990-03-06
McCamish, Marion C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including interlaminar mechanical fastener
26 51, 26106, 28240, 139420R, 139420A, 156 72, 428 95, 428910, B32B 708
Patent
active
049065203
ABSTRACT:
A fabric, useful as a primary carpet backing, woven in both the warp and weft directions from filmy elements in the form of longitudinally-oriented, splittable ribbons formed from a blend of a major amount of polyester and a minor amount of a polyolefin. The ribbons split longitudinally when punctured by a tufting needle, thus providing for a more secure grip on the tufted carpet yarn than that given by conventional polyester backings. The use of polyester as a principal component overcomes certain drawbacks of polypropylene backings. Alternative processes for making these fabrics, each involving a heat-treating step at a temperature of at least 150.degree. F. (66.degree. C.) for a sufficient period of time to render the ribbons splittable, are also disclosed.
REFERENCES:
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patent: 3317366 (1967-05-01), Dionne
patent: 3579609 (1971-05-01), Sevenich
patent: 3632687 (1972-01-01), Walter et al.
patent: 3707837 (1973-01-01), Gibbon
patent: 3769815 (1973-11-01), Ploch et al.
patent: 3900549 (1975-08-01), Yamane et al.
patent: 4010303 (1977-03-01), Ramsauer et al.
patent: 4123490 (1978-10-01), Gibbon
patent: 4129632 (1978-12-01), Olson et al.
patent: 4478900 (1984-10-01), Nebe et al.
Faser Forshung und Textiltechnik, vol. 27, No. 12, pp. 639-647, Dec. 1976.
Textiltechnik, vol. 28, No. 6, pp. 348-353, Jun. 1978.
E. I. Du Pont de Nemours and Company
McCamish Marion C.
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