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Patent Searching and Data


Title:
LIVING COORDINATIVE CHAIN TRANSFER POLYMERIZATION WITH DYNAMIC COUNTERION EXCHANGE
Document Type and Number:
WIPO Patent Application WO/2011/156742
Kind Code:
A3
Abstract:
Disclosed is a method of producing a polyolefin composition comprising contacting a metal alkyl and a first olefin monomer, then adding a first co-catalyst, a second co-catalyst, a pre-catalyst, and a second olefin monomer. The method allows for the production of a series of copolymers with tunable incorporation ratios of the first olefin monomer. The method also allows for the production of polyolefins of low molecular weights and narrow molecular weight distributions.

Inventors:
SITA LAWRENCE R (US)
WEI JIA (US)
ZHANG WEI (US)
Application Number:
PCT/US2011/040025
Publication Date:
January 26, 2012
Filing Date:
June 10, 2011
Export Citation:
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Assignee:
UNIV MARYLAND (US)
SITA LAWRENCE R (US)
WEI JIA (US)
ZHANG WEI (US)
International Classes:
C08F210/00; C08F2/00
Foreign References:
US20070167578A12007-07-19
US5447895A1995-09-05
Other References:
ZHANG ET AL.: "Highly Efficient, Living Coordinative Chain-Transfer Polymerization of Propene with ZnEt2..", J. AM. CHEM. SOC., vol. 130, 2008, pages 442 - 443
Attorney, Agent or Firm:
ESMOND, Robert, W. et al. (1100 New York Avenue NWWashington, DC, US)
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