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Title:
OXO-NITROGENATED IRON COMPLEX, CATALYTIC SYSTEM COMPRISING SAID OXO-NITROGENATED IRON COMPLEX AND PROCESS FOR THE (CO)POLYMERIZATION OF CONJUGATED DIENES
Document Type and Number:
WIPO Patent Application WO/2017/208128
Kind Code:
A8
Abstract:
An oxo-nitrogenated iron complex having general formula (I) or (II) wherein: R1 and R2 identical or different, represent a hydrogen atom; or are selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; R3, identical or different, represent a hydrogen atom; or are selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; X1 and X2, identical or different, represent a halogen atom such as, for example, chlorine, bromine, iodine; or are selected from linear or branched C1-C20, preferably C1-C15, alkyl groups, -OCOR4 groups or -OR4 groups wherein R4 is selected from linear or branched C1-C20, preferably C1-C15, alkyl groups. Said oxo-nitrogenated iron complex having general formula (I) or (II) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes.

Inventors:
PAMPALONI GUIDO (IT)
SOMMAZZI ANNA (IT)
RICCI GIOVANNI (IT)
MASI FRANCESCO (IT)
LEONE GIUSEPPE (IT)
Application Number:
PCT/IB2017/053142
Publication Date:
November 01, 2018
Filing Date:
May 29, 2017
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Assignee:
VERSALIS SPA (IT)
International Classes:
C08F136/04
Attorney, Agent or Firm:
MARINA, Mauro (IT)
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