Title:
ENHANCED CATALYST PERFORMANCE FOR PRODUCTION OF VINYL TERMINATED PROPYLENE AND ETHYLENE/PROPYLENE MACROMERS
Document Type and Number:
WIPO Patent Application WO/2012/134720
Kind Code:
A3
Abstract:
This invention relates to a transition metal catalyst compound represented by structure (A); wherein M is hafnium or zirconium; each X is, independently, selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halogens, dienes, amines, phosphines, ethers, or a combination thereof; each R1 and R3 are, independently, a C1 to C8 alkyl group; and each R2, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are, independently, hydrogen, or a substituted or unsubstituted hydrocarbyl group having from 1 to 8 carbon atoms, provided however that at least three of the R10-R14 groups are not hydrogen, compositions thereof and methods of use thereof to prepare polymers.
Inventors:
CROWTHER DONNA J (US)
GANESH RENUKA N (US)
NARVAEZ ANDREW G JR (US)
BRANT PATRICK (US)
GANESH RENUKA N (US)
NARVAEZ ANDREW G JR (US)
BRANT PATRICK (US)
Application Number:
PCT/US2012/027688
Publication Date:
November 22, 2012
Filing Date:
March 05, 2012
Export Citation:
Assignee:
EXXONMOBIL CHEM PATENTS INC (US)
CROWTHER DONNA J (US)
GANESH RENUKA N (US)
NARVAEZ ANDREW G JR (US)
BRANT PATRICK (US)
CROWTHER DONNA J (US)
GANESH RENUKA N (US)
NARVAEZ ANDREW G JR (US)
BRANT PATRICK (US)
International Classes:
C08F8/00; B01J31/12; C07F7/00; C08F10/00
Foreign References:
| US20090318644A1 | 2009-12-24 | |||
| US20090318647A1 | 2009-12-24 | |||
| US20050261449A1 | 2005-11-24 | |||
| US20100041842A1 | 2010-02-18 |
Other References:
See also references of EP 2688918A4
Attorney, Agent or Firm:
BELL, Catherine, L. et al. (Law TechnologyP.O. Box 214, Baytown TX, US)
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