Invention Grant
- Patent Title: Method for the synthesis of a rare-earth organophosphate and use thereof for preparing a preformed catalytic system
- Patent Title (中): 稀土类有机磷酸盐的合成方法及其制备预制催化体系的用途
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Application No.: US12809600Application Date: 2008-12-18
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Publication No.: US08410254B2Publication Date: 2013-04-02
- Inventor: Julien Thuilliez
- Applicant: Julien Thuilliez
- Applicant Address: CH Granges-Paccot FR Clermont-Ferrand
- Assignee: Michelin Recherche et Technique S.A.,Compagnie Generale des Etablissements Michelin
- Current Assignee: Michelin Recherche et Technique S.A.,Compagnie Generale des Etablissements Michelin
- Current Assignee Address: CH Granges-Paccot FR Clermont-Ferrand
- Agency: Cozen O'Connor
- Priority: FR0708913 20071220
- International Application: PCT/EP2008/067920 WO 20081218
- International Announcement: WO2009/083480 WO 20090709
- Main IPC: C07F5/00
- IPC: C07F5/00 ; C07F9/02
Abstract:
A process for preparing a rare-earth organophosphate in the form of a gel that can be used as is for the preparation of a “preformed” catalyst system intended, in particular, for the cis-1,4 stereospecific polymerization of conjugated dienes.
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