EP 4251659 A1 20231004 - CATALYTIC SYSTEM BASED ON A RARE-EARTH METALLOCENE AND A CO-CATALYST HAVING A PLURALITY OF CARBON-MAGNESIUM BONDS
Title (en)
CATALYTIC SYSTEM BASED ON A RARE-EARTH METALLOCENE AND A CO-CATALYST HAVING A PLURALITY OF CARBON-MAGNESIUM BONDS
Title (de)
KATALYSATORSYSTEM AUF BASIS EINES SELTENERDMETALLOCENS UND EINES COKATALYSATORS MIT MEHREREN KOHLENSTOFF-MAGNESIUM-BINDUNGEN
Title (fr)
SYSTÈME CATALYTIQUE À BASE D'UN MÉTALLOCÈNE DE TERRE RARE ET D'UN CO-CATALYSEUR AYANT PLUSIEURS LIAISONS CARBONE MAGNÉSIUM
Publication
Application
Priority
- FR 2012080 A 20201124
- FR 2021052045 W 20211119
Abstract (en)
[origin: WO2022112692A1] The invention relates to a catalytic system based on at least one rare-earth metallocene and, as co-catalyst, an organomagnesium compound having the formula X-Mg-RA-Mg-X, where RA is a divalent aliphatic hydrocarbon chain, interrupted or not by an oxygen atom, a sulphur atom or by an arylene group, and X is a halogen atom. The catalytic system of the invention enables the synthesis of telechelic diene and/or ethylene polymers.
IPC 8 full level
C08F 10/02 (2006.01); C08F 4/54 (2006.01)
CPC (source: EP US)
C08F 4/545 (2013.01 - US); C08F 8/32 (2013.01 - EP); C08F 10/02 (2013.01 - EP); C08F 210/02 (2013.01 - US)
C-Set (source: EP)
Citation (search report)
See references of WO 2022112692A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3116540 A1 20220527; FR 3116540 B1 20231103; EP 4251659 A1 20231004; US 2023406966 A1 20231221; WO 2022112692 A1 20220602
DOCDB simple family (application)
FR 2012080 A 20201124; EP 21823967 A 20211119; FR 2021052045 W 20211119; US 202118038487 A 20211119