Patent ID: 7618913

Claim:
A catalyst component prepared by: (i) contacting compound having the formula R 1 x SiX y , wherein R 1 is C 1 -C 20 hydrocarbyl, X is halogen, x=0-3, y=1-4, and x+y=4, and wherein each X and each R 1 may be the same or different, with at least one compound having the formula R 2 m Si(OR 3 ) n , wherein R 2 and R 3 are independently C 1 -C 20 hydrocarbyl, m=0-3, n=1-4, and m+n=4, and wherein each R 2 may be the same or different and each R 3 may be the same or different, thereby forming organic silicon complex (A); (ii) optionally, contacting the organic silicon complex (A) with a compound having the formula (R 4 2 R 5 Si) 2 NH wherein R 4 is alkyl or aryl and R 5 is cyclic alkyl, and wherein each R4 may be the same of different, thereby forming organic silicon complex containing nitrogen (B); (iii) contacting the organic silicon complex (A) or the organic silicon complex containing nitrogen (B) with a compound having the formula Ti(OR 6 ) a X 4-a , wherein R 6 is C 1 -C 20 hydrocarbyl, X is halogen, and 0<a≦4, and wherein each R6 may be the same or different, thereby forming organic silicon complex containing titanium (C); (iv) contacting the organic silicon complex containing titanium (C) with a compound having the formula wherein Y is nitrogen, Z is nitrogen or carbon, R 7 , R 8 , R 9 , and R 10 are independently selected from the group consisting of 2-position substituted aromatic pyridine ring group, 2-position substituted pyrimidine ring group, 2-position substituted pyrazine group, alkyl silane group containing 1 to 20 carbon atoms, alkyl group containing 1 to 20 carbon atoms, aryl group containing 1 to 20 carbon atoms, alkoxy group, haloalkyl group, hydroxyalkyl group, carboxaldehyde group, carboxylic acid group, acetyl, and carboxamide group, and each p independently is 0 or 1, thereby forming fourth reaction complex (D); and (v) contacting the fourth reaction complex (D) with magnesium-based composite support prepared in-situ by contacting metallic magnesium with alkyl halide or aromatic halide in the presence of fourth reaction complex (D), thereby forming the catalyst component.