Polyethylene fibers and spunbonded fabric or web

Details Polyethylene fibers and spunbonded fabric or web Polyethylene fibers and spunbonded fabric or web

1987-10-27

1989-06-27

Seccuro, Carman J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428288, 428296, 264DIG26, 264 75, 2642108, 525240, D04H 303, C08L 2306, C08L 2308, C08L 2318

Patent

active

048429228

ABSTRACT:
Blends of high molecular weight linear polyethylene and low molecular weight linear polyethylene provide improved fiber-forming capabilities over that found with either polymer taken alone. Preferably at least one of the polymers used in the blend is a linear low density polyethylene, LLDPE, which is a linear polyethylene comprising ethylene copolymerized with an amount of a higher alpha-olefin which causes the density of the copolymer to be less than that of a homopolymer made using the same process and catalyst. The higher alpha-olefin can be at least one in the C.sub.3 -C.sub.12 range, preferably in the C.sub.4 -C.sub.8 range.

REFERENCES:
patent: 4076698 (1978-02-01), Anderson et al.
patent: 4429079 (1984-01-01), Shibata et al.
patent: 4438238 (1984-03-01), Fukushima et al.
patent: 4578414 (1986-03-01), Sawyer et al.
patent: 4584347 (1986-04-01), Harpell et al.
patent: 4644045 (1987-02-01), Fowells
patent: 4705829 (1987-11-01), Kwack et al.

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