Title:
TYPE OF CATALYST MADE FROM A RARE EARTH AND MAGNESIUM, USE THEREOF IN OLEFIN OR LACTONE POLYMERISATION AND THE ETHYLENE (METH)ACRYLIC CO-ESTER DIBLOCK COPOLYMERS OBTAINED
Document Type and Number:
WIPO Patent Application WO2002055193
Kind Code:
A3
Abstract:
The invention relates to a type of catalyst that comprises a rare earth and magnesium and is characterised by the fact that it can be obtained by a method whereby ethylene is treated with a product obtained by combining an alcoholate of said rare earth and a magnesium organic compound. Said type can be used as a catalyst or a polymerisation initiator in olefin or lactone polymerisation, as well as for the copolymerisation of ethylene and a polar monomer. Furthermore, the invention relates to an ethylene (meth)acrylic co-ester diblock copolymer having a molar mass Mn of at least 200,000 and more specifically of at least 250,000.
Inventors:
CARPENTIER JEAN-FRANCOIS (FR)
CHENAL THOMAS (FR)
GROMADA JEROME (FR)
MORTREUX ANDRE (FR)
CHENAL THOMAS (FR)
GROMADA JEROME (FR)
MORTREUX ANDRE (FR)
Application Number:
PCT/FR2002/000043
Publication Date:
January 03, 2003
Filing Date:
January 08, 2002
Export Citation:
Assignee:
RHODIA ELECT & CATALYSIS (FR)
CARPENTIER JEAN-FRANCOIS (FR)
CHENAL THOMAS (FR)
GROMADA JEROME (FR)
MORTREUX ANDRE (FR)
UNIV LILLE SCIENCES TECH (FR)
CARPENTIER JEAN-FRANCOIS (FR)
CHENAL THOMAS (FR)
GROMADA JEROME (FR)
MORTREUX ANDRE (FR)
UNIV LILLE SCIENCES TECH (FR)
International Classes:
B01J23/10; B01J31/02; B01J31/12; C08F4/54; C08F110/02; C08F297/02; C08F297/08; C08G63/82; (IPC1-7): B01J23/10; C08F4/54; C08F10/02; C08F297/08
Domestic Patent References:
| WO2001002446A1 | 2001-01-11 |
Foreign References:
| US5527751A | 1996-06-18 | |||
| US4931376A | 1990-06-05 | |||
| US4520177A | 1985-05-28 | |||
| EP0799842A1 | 1997-10-08 | |||
| EP0634429A1 | 1995-01-18 |
Other References:
ZHENG Y-S ET AL: "Polymerization of styrene with calixarene-neodymium complex using alkylmagnesium as cocatalyst", EUROPEAN POLYMER JOURNAL, PERGAMON PRESS LTD. OXFORD, GB, vol. 35, no. 6, June 1999 (1999-06-01), pages 1037 - 1042, XP004170118, ISSN: 0014-3057
HAJIME YASUDA ET AL: "NEW APPROACH TO BLOCK COPOLYMERIZATIONS OF ETHYLENE WITH ALKYL METHACRYLATES AND LACTONES BY UNIQUE CATALYSIS WITH ORGANOLANTHANIDE COMPLEXES", MACROMOLECULES, AMERICAN CHEMICAL SOCIETY. EASTON, US, vol. 25, no. 19, 14 September 1992 (1992-09-14), pages 5115 - 5116, XP000298710, ISSN: 0024-9297
HAJIME YASUDA ET AL: "NEW APPROACH TO BLOCK COPOLYMERIZATIONS OF ETHYLENE WITH ALKYL METHACRYLATES AND LACTONES BY UNIQUE CATALYSIS WITH ORGANOLANTHANIDE COMPLEXES", MACROMOLECULES, AMERICAN CHEMICAL SOCIETY. EASTON, US, vol. 25, no. 19, 14 September 1992 (1992-09-14), pages 5115 - 5116, XP000298710, ISSN: 0024-9297
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