Process and catalyst for producing reactor blend polyolefins

Details Process and catalyst for producing reactor blend polyolefins Process and catalyst for producing reactor blend polyolefins

1985-02-01

1990-06-26

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, 502117, 502129, 526114, 526116, 526160, 525240, C08F 466, C08F 1002

Patent

active

049372998

ABSTRACT:
Polyolefin reactor blends obtained by polymerization of ethylene and higher alpha-olefins in the presence of a catalyst system comprising two or more metallocenes and alumoxane.

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patent: 4210559 (1980-07-01), Melquist et al.
patent: 4396533 (1983-08-01), Johnstone
patent: 4404344 (1983-09-01), Sinn et al.
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4542199 (1985-09-01), Kaminsky et al.
Sinn et al., Advances in Organometallic Chemistry, vol. 18 (1980), pp. 123-143.
Copolymerization, High Polymers Sines, vol. XVIII, J. Witey & Sons, N.Y. (1964) (Lukach et al.), pp. 115-123, 126, 127, 138-140.
John Boor, Jr., Ziegler-Natta Catalysts and Polymerizations, Academic Press, New York, 1979.
C. A. Lukach and H. M. Spurlin, Copolymers of Alpha-Olefins, pp. 115-140, Research Center, Hercules Powder Company, Wilmington, Del.
D. R. Paul and Seymour Newman, Polymer Blends, vol. 2, New York, Academic Press, 1978, pp. 83, 330.
H. Hocker and K. Saeki, "Polymerisation of Ethylene with Soluble Ziegler-Natta Catalysts", May, 1971, pp. 107-119, Mainz, Germany.
George L. Karapinka and Wayne L. Carrick, "Transition Metal Catalysts VI. Bis-(cyclopentadienyl) Transition Metal Polymerization Catalysts", 1961, pp. 145-150, Bound Brook, N.J.
Boor, John Jr., Ziegler-Natta Catalysts and Polymerizations, Academic Press, 1979, p. 116, New York, N.Y.

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