Polyethylene composition

Details Polyethylene composition Polyethylene composition

1975-02-24

1976-08-24

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 285A, 260836, 260 318PQ, 260 336PQ, 526352, 528502, C08L 9100

Patent

active

039766128

ABSTRACT:
A polyethylene composition consisting of: (A) a high density polyethylene with a viscosity-average molecular weight of 10 .times. 10.sup.4 to 20 .times. 10.sup.4, a number average molecular weight of 1 .times. 10.sup.4 or greater and a ratio between weight average molecular weight and number average molecular weight of 20 or less; (B) at least one inorganic calcium compound selected from a group consisting of calcium sulfite, calcium sulfate and calcium carbonate; and (C) a solid lubricant, if desired, the composition produces a film or sheet whose internal tearing resistance is high and equal in both longitudinal and lateral directions and the processibility of the resin composition may be extremely improved by incorporating as a fourth component, within a range of 1:5 to 5:1 in weight ratio with respect to the aforementioned high density polyethylene, a different high density polyethylene with a melt index of 0.1 to 1.0.

REFERENCES:
patent: 3278471 (1966-10-01), Rairdon
patent: 3409574 (1968-11-01), Gros

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