Process for the preparation of high density ethylene polymers in

Details Process for the preparation of high density ethylene polymers in Process for the preparation of high density ethylene polymers in

1981-11-20

1983-05-10

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 526125, 526352, 526901, C08F 234, C08F 1002

Patent

active

043830951

ABSTRACT:
A catalytic process for preparing ethylene polymers having a density of .gtoreq.0.95 to .ltoreq.0.97 and a melt flow ratio of about .gtoreq.22 to .ltoreq.32 in a low pressure gas phase process at a productivity of .gtoreq.50,000 pounds of polymer per pound of Ti with a catalyst formed from selected organoaluminum compounds and a precursor composition of the formula

REFERENCES:
patent: 3787384 (1974-01-01), Stevens et al.
patent: 3790550 (1974-02-01), Miller
patent: 4035560 (1977-07-01), Caumartin et al.
patent: 4086409 (1978-04-01), Karol et al.
patent: 4098979 (1978-07-01), Maemoto et al.
patent: 4113933 (1978-09-01), Schweier et al.
patent: 4124532 (1978-11-01), Giannini et al.
patent: 4243619 (1981-01-01), Fraser et al.
patent: 4302566 (1981-11-01), Karol et al.
USSN 892,037; 892,322, filed Mar. 31, 1978.

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