Patent ID: 6414090
Filing Date: 2002-07-02
Classification: C08F,C10M,C10N,Y10S

Abstract:
A process for producing a polymer comprising one or more &agr;-olefins, said process comprisingpolymerizing one or more &agr;-olefins having at least 4 carbon atoms in the presence of a catalyst, said catalyst comprising: (A) at least one compound represented by formula (II): whereinR7 to R12 and X3 to X4 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a hydrocarbon group having 1 to 20 carbon atoms and a halogen atom, a group having silicon, a group having oxygen, a group having sulfur, a group having nitrogen or a group having phosphorus; adjacent groups among groups represented by R7 to R12 and X3 to X4 may form a ring by forming bonds between each other; three groups represented by R9 may be the same or different from each other; three groups represented by R10 may be the same or different from each other; Y3 to Y4 each independently represent a divalent group which forms a bond between two ligands and is selected from hydrocarbon groups having 1 to 20 carbon atoms, hydrocarbon groups having 1 to 20 carbon atoms and a halogen atom, a group having silicon, a group having germanium, a group having tin, â€”Oâ€”, â€”COâ€”, â€”Sâ€”, â€”SO2â€”, â€”NR13â€”, â€”PR13â€”, â€”P(O)R13â€”, â€”BR13â€” and â€”A1R13â€”, R13 representing a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms or a hydrocarbon group having 1 to 20 carbon atoms and a halogen atom, and M2 represents a transition metal of Groups 4 to 6 of the Periodic Table; and (B) at least one compound selected from (b-1) organoaluminum oxy compounds and (b-2) ionic compounds which can be converted into cations by reaction with the transition metal compounds of component (A).