Patent ID: 6583304
Filing Date: 2003-06-24
Classification: C07F,Y10S

Abstract:
A metallocene compound represented by the following formula 1 or 2,(CpR1aRsb)(Cpâ€²R2aâ€²Rsbâ€²)MX2â€ƒâ€ƒ(Formula 1) wherein, Cp and Cpâ€², which can be the same or different, represent a radical selected from the group consisting of cyclopentadienyl radical, indenyl radical, 4,5,6,7-tetrahydro-1-indenyl radical and fluorenyl radical; R1 and R2, which can be the same or different, represent phosphine, amino, alkyl having 1 to 20 carbon atoms, alkoxy, alkylamino, dialkylamino, alkoxy-alkyl, aryl, aryloxy-alkyl, alkenyl, alkylaryl or arylalkyl radical; Rs represents 1-alkyl-1-silacyclohydrocarbyl radical of the following formula 3, wherein, R3 and R4, which can be the same or different, represent hydrogen or alkyl radical having 1 to 5 carbon atoms, R5 is alkyl radical having 1 to 8 carbon atoms, and n is an integer of 4 to 8; Cpâ€²R2aâ€²Rsbâ€² in formula 2 can be displaced with divalent NRâ€³ radical, wherein Râ€³ represents Rs, alkyl radical having 1 to 12 carbon atoms, or aryl radical having 6 to 10 carbon atoms; M represents a Group 4B, 5B, or 6B transition metal; X, which can be the same or different, represents one radical selected from the group consisting of halogen, alkyl radical having 1 to 20 carbon atoms, aryl, alkenyl, alkylaryl, arylalkyl, alkoxy and aryloxy radicals; Q represents alkylene radical having 1 to 4 carbon atoms, dialkyl germanium or silicon, alkyl phosphine or amine radical, bis-dialkylsilyl or bis-dialkylgermanyl having hydrocarbyl radical of 1 to 4 carbon atoms; in formula 1, a is an integer of 0 to 4, aâ€² is an integer of 0 to 5, b is an integer of 1 to 3, and bâ€² is an integer of 0 to 3, wherein 1&lE;a+b&lE;5, 0&lE;aâ€²+bâ€²&lE;5; and in formula 2, a is an integer of 0 to 3, aâ€² is an integer of 0 to 4, b is an integer of 1 to 2, and bâ€² is an integer of 0 to 3, wherein 1&lE;a+b&lE;4, 0&lE;aâ€²+bâ€²&lE;4.