Process for polymerizing olefins and polymerization catalysts us

Details Process for polymerizing olefins and polymerization catalysts us Process for polymerizing olefins and polymerization catalysts us

1978-08-07

1981-02-24

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252437, 526106, 526130, 526134, 526352, C08F 462, C08F 1000

Patent

active

042529263

ABSTRACT:
Olefins are polymerized in the presence of catalysts prepared by combining a heat activated supported organophosphoryl chromium compound with an alkyl borane which has been pretreated with hydrogen.

REFERENCES:
patent: 3476724 (1969-11-01), Hogan et al.
patent: 3984351 (1976-10-01), Rekers
patent: 3985676 (1976-10-01), Rekers
Koester et al., Ann. Chem., vol. 644, p. 1ff, (1961).

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