Olefin copolymers from bridged bis(arylamido) Group 4 catalyst c

Details Olefin copolymers from bridged bis(arylamido) Group 4 catalyst c Olefin copolymers from bridged bis(arylamido) Group 4 catalyst c

1997-02-24

2000-08-08

Wu, David W.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

326160, 326141, 326348, 3263487, 502103, 502123, C08F 400

Patent

active

061003549

ABSTRACT:
A process for preparing substantially random olefin copolymers containing geminally disubstituted olefin monomers is described. The geminally disubstituted olefin monomers can be represented by the generic formula R.sub.1 =R.sub.2 (R.sub.3)(R.sub.4), where R.sub.1 is CH.sub.2, R.sub.2 is C, and R.sub.3 and R.sub.4 are, independently, essentially linear hydrocarbyl groups having from 1 to 30 carbon atoms, or more, and containing one carbon atom bound directly to R.sub.2. The copolymers can be prepared by contacting at least one geminally disubstituted olefin monomer and one or more comonomers selected from the group consisting of ethylene and C.sub.3 -C.sub.20 .alpha.-olefins, optionally with one or more other coordination polymerizable monomers, with a active coordination catalyst system comprising a bridged bis(arylamido) Group 4 catalyst component.

REFERENCES:
patent: 4774301 (1988-09-01), Campbell, Jr.
patent: 5318935 (1994-06-01), Canich et al.
patent: 5444145 (1995-08-01), Brant et al.
patent: 5448001 (1995-09-01), Baird
patent: 5475075 (1995-12-01), Brant et al.
patent: 5541350 (1996-07-01), Murata et al.
patent: 5763556 (1998-06-01), Shaffer et al.
"Insertion Polymerization," Encycl. of Polm. Sci. and Eng., vol. 8, p. 175 (Wiles Interscience, 1988).
"Polymerization of .alpha.-Olefins by Chelating Diamide Complexes of Titanium," Scollard, J.D., et al, Macromolecules 29, p. 5241-5243 (1996) with supplemental material p. 1-22.
"Sterically Demanding Diamide Ligands: Synthesis and Structures of d.sup.0 Zirconium Alkyl Derivatives," Scollard, J. D., et al, Organometallics 14, p. 5478-5480 (1995), with supplemental material p. 1-10.
"Aliphatic Olefins," Cationic Polymerization of Olefins: A Critical Inventory, J. P. Kennedy, p. 53-67 John Wiley & Sons (1975).
"Isotactic Polymerization of Olefins with Homogeneous Zirconium Catalysts, " Transition Metals and Organometallics as Catalysts for Olefin Polymerization, W. Kaminsky, et al, Springer-Verlag, pp. 291, 296 (1988).
"Aliphatic Olefins, " Cationic Polymerization of Olefins: A Critical Inventory, J.P. Kennedy, pp. 53-67 John Wiley & Sons (1975).
"Polymerization of .alpha.--Olefins by Chelating Diamide Complexes of Titanium," Scollard, J.D., et al., Macromolecules 29, pp. 5241-5243 (1996) with supplement amterial pp. 1-22.
"Sterically demanding Diamide Ligands: Synthesis and Structures of d.degree.Zirconium Alkyl derivatives," Scollard, J.D., et al, Organpmetallics 14, pp. 5478-5480 (1995) with supplemental material pp. 1-10.

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