Patent ID: 6727329
Filing Date: 2004-04-27
Classification: B01J,C07F,C08F,Y10S

Abstract:
A polymerization process comprising contacting one or more &agr;-olefins under polymerization conditions with a catalyst composition comprising the combination or reaction product resulting from combining,1) a Group 3-10 or Lanthanide metal complex. 2) a compound corresponding to the formula: (A*+a)b(Z*J*j)âˆ’cd, wherein: A* is a proton or a cation of from 1 to 80 atoms, not counting hydrogen atoms, said A* having a charge+a; Z* is an anion group of from 1 to 50 atoms, not counting hydrogen atoms, further containing two or more Lewis base sites, said Z* being the conjugate base of an inorganic Bronsted acid or a carbonyl- or non-cyclic, imino-group containing organic Bronsted acid; J* independently each occurrence is a Lewis acid of from 1 to 80 atoms, not counting hydrogen atoms, coordinated to at least one Lewis base site of Z*, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality; j is a number from 1 to 12; and a, b, c, and d are integers from 1 to 3, with the proviso that aÃ—b is equal to cÃ—d; 3) optionally an organoaluminum compound, and 4) further optionally, a solid, particulated support.