Preactivated catalytic complex spogospheres

Details Preactivated catalytic complex spogospheres Preactivated catalytic complex spogospheres

1973-08-27

1980-07-01

Smith, Edward J.

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

Synthetic resins

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

252429B, 252429C, 526119, 526140, 526142, 526158, 526351, 526904, C08F 466, C08F 1006

Patent

active

042107296

ABSTRACT:
Storage stability of Ziegler-type catalysts for .alpha.-olefin polymerization and having a specific surface greater than 75 m.sup.2 /g is improved by treating the catalysts with a preactivator which is an organic compound of a metal of one of Groups Ia, IIa, IIb and IIIa of the Periodic Table.

REFERENCES:
patent: 3267086 (1966-08-01), Tornqvist

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