Polymerization processes for olefins

Details Polymerization processes for olefins Polymerization processes for olefins

1997-07-21

1998-12-22

Nagumo, Mark

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526151, 526161, 526160, 526122, 526139, 526141, 526308, 5263485, 526352, 526281, 5263482, 525269, 525270, C08F 470

Patent

active

058521453

ABSTRACT:
Certain olefins such as ethylene, .alpha.-olefins and cyclopentene can be polymerized by using catalyst system containing a nickel or palladium .alpha.-diimine complex, a metal containing hydrocarbylation compound, and hydrocarbylation compound, and optionally a selected Lewis acid. The process advantageously produces polyolefins useful for molding resins, films, elastomers and other uses.

REFERENCES:
PCT International Search Report for PCT/US 97/12801 (CR9969) dated Dec. 9, 1997.
Michael Svoboda and Heindirk tom Dieck, Diazadien-Nickel-Alkyle, Journal of Organometallic Chemistry, 191, 321-328, 1980.
Lynda K. Johnson, Christopher M. Killian, and Maurice Brookhart, New Pd(II)-and Ni(II)-Based Catalysts for Polymerization of Ethylene and .alpha.-Olefins, J. Am. Chem. Soc., 117, 6414-6415, 1995.
Rob van Asselt, Cornelis J. Elsevier, Wilbert J. J. Smeets, Anthony L. Spek and Roland Benedix, Synthesis and characterization of rigid bidentate nitrogen ligands and some examples of coordination to divalent palladium. X-ray crystal structures of bis(.rho.-tolylimino)acenaphthene and Recl. Trav. Chim. Pays-Bas, 113, 88-98, 1994.

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