Patent ID: 6017842
Filing Date: 2000-01-25
Classification: B01J,C08F,Y10S

Abstract:
A catalyst composition comprising in combination:a) a metal complex corresponding to the formula: C.sub.pI MX.sub.p L.sub.qthat has been or is rendered catalytically active by combination with an activating cocatalyst or by use of an activating technique,wherein: M is a metal of Group 4 of the Periodic Table of the Elements having an oxidation state of +2, +3 or +4, bound in an .eta..sup.5 bonding mode to one or two C.sub.p groups;C.sub.p independently each occurrence is a cyclopentadienyl-, indenyl-, tetrahydroindenyl-, fluorenyl-, tetrahydrofluorenyl-, or octahydrofluorenyl-group optionally substituted with from 1 to 8 substituents independently selected from the group consisting of hydrocarbyl, halo, halohydrocarbyl, aminohydrocarbyl, hydrocarbyloxy, dihydrocarbylamino, dihydrocarbylphosphino, silyl, aminosilyl, hydrocarbyloxysilyl, and halosilyl groups containing up to 20 non-hydrogen atoms, or further optionally two such C.sub.p groups may be joined together by a divalent substituent selected from the group consisting of hydrocarbadiyl, halohydrocarbadiyl, hydrocarbyleneoxy, hydrocarbyleneamino, siladiyl, halosiladiyl, and divalent aminosilane groups containing up to 20 non-hydrogen atoms;X independently each occurrence is a monovalent anionic .sigma.-bonded ligand group, a divalent anionic .sigma.-bonded ligand group having both valences bonded to M, or a divalent anionic .sigma.-bonded ligand group having one valency bonded to M and one valency bonded to a C.sub.p group, said X containing up to 60 nonhydrogen atoms;independently each occurrence is a neutral Lewis base ligand having up to 20 atoms;I is one or two;p is 0, 1 or 2, and is I less than the formal oxidation state of M when X is an monovalent anionic .sigma.-bonded ligand group or a divalent anionic .sigma.bonded ligand group having one valency bonded to M and one valency bonded to a C.sub.p group, or p is I +1 less than the formal oxidation state of M when X is a divalent anionic .sigma.-bonded ligand group having both valencies bonded to M; andq is 0, 1 or 2; andb) a Group 13 compound according to the formula R.sup.1.sub.2 M""(NR.sup.2.sub.2),wherein R.sup.1 and R.sup.2 independently each occurrence is a hydrocarbyl, silyl, halocarbyl, halohydrocarbyl, hydrocarbyl-substituted silyl, halocarbyl-substituted silyl, or halohydrocarbyl-substituted silyl group, said R.sup.1 and R.sup.2 each having from 1 to 30 carbon, silicon, or mixtures of carbon and silicon atoms, andM"" is a Group 13 metal,the molar ratio of a):b) being from 1:0.1 to 1:100; or the resulting derivative, reaction product or equilibrium mixture resulting from such combination.