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Title: Phenolate constrained geometry polymerization catalyst and method for preparing

Abstract

The subject invention involves a method of preparing and the constrained geometry catalyst thereby prepared of the general formula Ar{prime}R4(O)Ar{double_prime}R{prime}{sub 4}M(CH{sub 2}Ph){sub 2} where Ar{prime} is a phenyl or naphthyl group; Ar{double_prime} is a cyclopentadienyl or indenyl group, R and R{prime} are H or alkyl substituents (C{<=}10) and M is Ti, Zr or Hf. The synthetic method involves a simple alkane elimination approach which permits a ``one-pot`` procedure. The catalyst, when combined with a cocatalyst such as Pb{sub 3}C{sup +}B(Ar{sub 3}{sup F}){sub 4}BAr{sub 3}{sup F} or methyl alumoxane where Ar{sup F} is a fluoroaryl group, is an effective catalyst for the polymerization of {alpha}-olefins such as ethylene, propylene and styrene. 1 fig.

Inventors:
;
Issue Date:
Research Org.:
Northwestern University
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
321258
Patent Number(s):
5,856,258
Application Number:
PAN: 8-950,912
Assignee:
Northwestern Univ., Evanston, IL (United States) PTO; SCA: 400201; PA: EDB-99:031040; SN: 99002064450
DOE Contract Number:  
FG02-86ER13511
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 5 Jan 1999
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; CATALYSTS; CHEMICAL PREPARATION; TITANIUM COMPOUNDS; ZIRCONIUM COMPOUNDS; HAFNIUM COMPOUNDS; ORGANOMETALLIC COMPOUNDS; ALKENES; POLYMERIZATION

Citation Formats

Marks, T.J., and Chen, Y.X. Phenolate constrained geometry polymerization catalyst and method for preparing. United States: N. p., 1999. Web.
Marks, T.J., & Chen, Y.X. Phenolate constrained geometry polymerization catalyst and method for preparing. United States.
Marks, T.J., and Chen, Y.X. Tue . "Phenolate constrained geometry polymerization catalyst and method for preparing". United States.
@article{osti_321258,
title = {Phenolate constrained geometry polymerization catalyst and method for preparing},
author = {Marks, T.J. and Chen, Y.X.},
abstractNote = {The subject invention involves a method of preparing and the constrained geometry catalyst thereby prepared of the general formula Ar{prime}R4(O)Ar{double_prime}R{prime}{sub 4}M(CH{sub 2}Ph){sub 2} where Ar{prime} is a phenyl or naphthyl group; Ar{double_prime} is a cyclopentadienyl or indenyl group, R and R{prime} are H or alkyl substituents (C{<=}10) and M is Ti, Zr or Hf. The synthetic method involves a simple alkane elimination approach which permits a ``one-pot`` procedure. The catalyst, when combined with a cocatalyst such as Pb{sub 3}C{sup +}B(Ar{sub 3}{sup F}){sub 4}BAr{sub 3}{sup F} or methyl alumoxane where Ar{sup F} is a fluoroaryl group, is an effective catalyst for the polymerization of {alpha}-olefins such as ethylene, propylene and styrene. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}