公开(公告)号：US11518776B2

公开(公告)日：2022-12-06

申请号：US16345015

申请日：2018-01-18

Applicant: Versalis S.P.A.

Inventor： Anna Sommazzi ,  Guido Pampaloni ,  Giovanni Ricci ,  Francesco Masi ,  Filippo Renili

IPC: C08F36/06 ,  C08F36/08 ,  C07F15/02 ,  C07C251/08 ,  C08F136/06 ,  C08F136/08

Abstract: Oxo-nitrogenated iron complex having general formula (I): in which: R1 and R2, identical or different, represent a hydrogen atom; or they are selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; R3 represents a hydrogen atom, or it is selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15 alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; X, identical or different, represent a halogen atom such as, for example, chlorine, bromine, iodine, preferably chlorine; or they are selected from. linear or branched C1-C20, preferably C1-C15, alkyl groups, —OCOR4 groups or —OR4 groups in which R4 is selected from linear or branched C1-C20, preferably C1-C15, alkyl groups; n is 2 or 3. Said oxo-nitrogenated iron complex having general formula (I) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes.

公开(公告)号：US20210292354A1

公开(公告)日：2021-09-23

申请号：US16345015

申请日：2018-01-18

Applicant: Versalis S.P.A.

Inventor： Anna Sommazzi ,  Pampaloni Guido ,  Giovanni Ricci ,  Francesco Masi ,  Filippo Renili

IPC: C07F15/02 ,  C08F136/08 ,  C08F136/06 ,  C07C251/08

Abstract: Oxo-nitrogenated iron complex having general formula (I): in which: R1 and R2, identical or different, represent a hydrogen atom; or they are selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; R3 represents a hydrogen atom, or it is selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15 alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; X, identical or different, represent a halogen atom such as, for example, chlorine, bromine, iodine, preferably chlorine; or they are selected from. linear or branched C1-C20, preferably C1-C15, alkyl groups, —OCOR4 groups or —OR4 groups in which R4 is selected from linear or branched C1-C20, preferably C1-C15, alkyl groups; n is 2 or 3. Said oxo-nitrogenated iron complex having general formula (I) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes.