Process for producing polyolefins and polyolefin catalysts

Details Process for producing polyolefins and polyolefin catalysts Process for producing polyolefins and polyolefin catalysts

1987-04-03

1990-07-03

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502113, 526116, 526119, 526160, 526905, 526352, C08F 466, C08F 1000

Patent

active

049392174

ABSTRACT:
A process for producing a polyolefin having a multimodal molecular weight distribution wherein the polymerization is conducted in the presence of hydrogen and a catalyst system containing aluminoxane and at least two different metallocenes each having different olefin polymerization termination rate constants in the presence of hydrogen, and the process of producing the catalyst system.

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patent: 4542199 (1985-09-01), Kaminsky et al.
patent: 4752597 (1988-06-01), Turner
J. Cihlar et al. Makromol. Chem. 182, 1127-1134 (1981).
Herwig et al., Polymer Bulletin 9, 464-469 (1983).
Kaminsky et al., Makromol. Chem. 5, 225-228 (1984).

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