Biconstituent polypropylene/polyethylene fibers

Details Biconstituent polypropylene/polyethylene fibers Biconstituent polypropylene/polyethylene fibers

1989-01-25

1992-07-28

Seccuro, Carman J.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264171, 26433117, 264 26, 525240, 428401, 428373, D01F 604, D01F 606, D01F 630, C08L 2312

Patent

active

051339170

ABSTRACT:
Extrudable blends of polypropylene and polyethylene, especially LLDPE, are prepared in a dynamic mixer and extruded as novel biconstituent fibers comprising polypropylene as one phase and polyethylene as another phase. Improved tenacity and hand are obtained, as compared to polypropylene alone.

REFERENCES:
patent: 4076698 (1978-02-01), Anderson et al.
patent: 4296022 (1981-10-01), Hudson
patent: 4563504 (1986-01-01), Hert et al.
patent: 4584347 (1986-04-01), Harpell et al.
patent: 4632861 (1986-12-01), Vassilatos
Skoroszewaki-"Parameters affecting processing of polymers and polymer blends"-Plastics & Polymers vol. 40 No. 147 pp. 142-152-Jul. 1972.

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