Process for preparing polyolefines

Details Process for preparing polyolefines Process for preparing polyolefines

1993-01-12

1995-02-21

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526152, 526153, 5263484, 5263485, 526351, 526352, 502110, C08F 464

Patent

active

053916603

ABSTRACT:
Polyolefins having a high molecular weight, an appropriate molecular weight distribution and a relatively narrow composition distribution are prepared in high activity.
The polymerization of an olefin or olefins is performed in the presence of a catalyst comprising a catalyst component and a modified organoaluminum compound, the catalyst component being prepared by mutually contacting (1) a compound of the general formula Me.sup.1 R.sup.1.sub.n X.sup.1.sub.4-n and (2) an alkali metal salt of cyclopentadiene or indene and optionally (3) a compound of the general formula Me.sup.2 R.sup.2.sub.m X.sup.2.sub.3-m, and the modified organoaluminum compound and water and containing Al--O--Al bond(s).

REFERENCES:
patent: 3334079 (1967-08-01), Raich
patent: 4871704 (1989-10-01), Kohara et al.
Certified English Translation copies of JP 130604 and JP 260602.

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