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Title:
COPOLYMERS MADE WITH ALLYL-TERMINATED POLYOLEFINS AND UNSATURATED ACIDIC REAGENTS, DISPERSANTS USING SAME, AND METHODS OF MAKING SAME
Document Type and Number:
WIPO Patent Application WO/2010/009379
Kind Code:
A3
Abstract:
Copolymers made with allyl-terminated polyolefins and unsaturated acidic reactants, dispersants using same, and methods of making same are provided. Under one aspect, a copolymer of an unsaturated acidic reactant and high molecular weight polyolefin, wherein the polyolefin comprises an allyl-terminated polymeric product, is provided. The allyl-terminated polymeric product is formed, e.g., by forming a quasi-living tert-halide terminated polyolefin under suitable quasi-living conditions, and contacting the tert-halide terminated polyolefin with an allylsilane compound and a Lewis acid. In some embodiments, the allylsilane compound includes allyltrimethylsilane.

Inventors:
HARRISON JAMES J (US)
STOKES CASEY D (US)
Application Number:
PCT/US2009/050965
Publication Date:
May 14, 2010
Filing Date:
July 17, 2009
Export Citation:
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Assignee:
CHEVRON ORONITE CO (US)
HARRISON JAMES J (US)
STOKES CASEY D (US)
International Classes:
C08F290/06; C08F8/00; C08F210/00; C08F210/02; C08F222/06
Foreign References:
US20070155910A12007-07-05
US20030094223A12003-05-22
Other References:
WALCH, E. ET AL.: "Telechelic polyisobutylene with unsaturated end groups and with anhydride end groups", POLYMER, vol. 35, April 1994 (1994-04-01), pages 1774 - 1778, XP024121954
ROTH, MICHAEL ET AL.: "A Novel Method for the Determination of Propagation Rate Constants: Carbocationic Oligomerization of Isobutylene", MACROMOLECULES, vol. 29, 9 September 1996 (1996-09-09), pages 6104 - 6109, XP008138870
SIMISON, KELBY L. ET AL.: "End-Quenching of Quasiliving Carbocationic Isobutylene Polymerization with Hindered Bases: Quantitative Formation of exo- Olefin-Terminated Polyisobutylene", MACROMOLECULES, vol. 39, April 2006 (2006-04-01), pages 2481 - 2487, XP002490679
See also references of EP 2303939A4
Attorney, Agent or Firm:
CAROLI, Claude, J. et al. (Law DepartmentPost Office Box 600, San Ramon CA, US)
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