Patent ID: 6197714
Filing Date: 2001-03-06
Classification: C08F

Abstract:
A catalyst for olefin polymerization represented by the formula STCat where Cat is one of the following: ##STR26##whereineach R.sup.1 independently is H, hydrocarbly, substituted hydrocarbly, or any two R.sup.1 groups on vicinal carbons together form a hydrocarbylene ring;each R.sup.2 independently is H, hydrocarbyl, substituted hydrocarbyl, an inert functional group, or any two R.sup.2 groups on vicinal carbon atoms together form a hydrocarbylene ring;each R.sup.3 independently is hydrocarbyl, substituted hydrocarbyl, an inert functional group, or the two R.sup.3 groups on vicinal carbon atoms together form a hydrocarbylene ring;each R.sup.4 independently is hydrocarbyl or substituted hydrocarbyl;each R.sup.5 independently is a sterically bulky hydrocarbyl;M is a transition metal selected from the group consisting of Ti, Zr, Hf, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, and Pt;K is N or C--R.sup.4 ;Z is a coordination ligand;G and L independently each in N or C--R.sup.3 ; andA is a C.sub.1 -C.sub.11 alkyl, an aryl, substituted aryl or H; with the proviso that at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 is a covalently bonded tethered support group ST where S is a substantially inert organic or inorganic macromolecule, and T is a C.sub.2 -C.sub.40 hydrocarbylene, a C.sub.2 -C.sub.40 hydrocarbyloxyene, a C.sub.2 -C.sub.40 fluorinated hydrocarbylene, or a C.sub.2 -C.sub.40 fluorinated hydrocarbyloxyene group.