Propylene polymer compositions

Details Propylene polymer compositions Propylene polymer compositions

1982-11-26

1984-07-10

Seccuro, Carman J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08L 2308, C08L 5300

Patent

active

044593856

ABSTRACT:
Extruded or molded shapes of compositions consisting essentially of certain sequentially polymerized ethylene-propylene copolymers and linear low density polyethylene of relatively low melt index (ASTM D1238-Condition E), not exceeding 5 dg/min, and density not exceeding 0.928, possess extremely good impact resistance without excessive loss of stiffness.

REFERENCES:
patent: 3328486 (1967-06-01), Crawford et al.
patent: 3487128 (1969-12-01), Okazaki et al.
patent: 3627852 (1971-12-01), Aishima et al.
patent: 3632674 (1972-01-01), Aishima et al.
patent: 3647922 (1972-03-01), Leugering et al.
patent: 3929932 (1975-12-01), Castagna
patent: 4128607 (1978-12-01), Shiomura et al.
patent: 4172875 (1979-10-01), Beyen et al.
patent: 4312964 (1982-01-01), Sekine et al.
Package Engineering "New Polyethylenes", 48/Feb. 1980, pp. 39-40.
Plastics World "New Materials", Dec. 1979, pp. 86.

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