Patent ID: 7247686

Claim:
A solid cocatalyst component for olefin polymerization, comprising an ion-containing compound comprising a cation expressed by [R 4 M] + and a non-coordinating anion expressed by [A] − , that is expressed by the following general formula (1): [R 4 M] + .[A] − (1) wherein the R groups, the same or different from one another, are each individually selected from the group consisting of a hydrogen atom and a substituted or non-substituted hydrocarbon group having from 1 to 30 carbon atoms with the exception of an aryl group; or two or more groups may form a ring by bonding with one another; at least one of the R groups is a C 3 -C 20 -cycloalkyl or C 7 -C 20 arylalkyl radical; and M represents nitrogen; [A] − has formula [M 1 (R 1 ) a (R 2 ) b (R 3 ) c (R 4 -L) d ] − wherein M 1 represents boron or aluminum; R 1 , R 2 , and R 3 each individually represents a substituted or non-substituted hydrocarbon group having from 1 to 20 carbon atoms, an alkoxy group, a phenoxy group, or a halogen atom and may be the same or different from one another; R 4 represents a hydrocarbon group having from 1 to 20 carbon atoms which may contain a hetero atom; L is a silyl group having formula (3) —[Si(Z 1 Z 2 )-Z 6 -] n SiZ 3 Z 4 Z 5 (3) wherein Z 1 , Z 2 , Z 3 , Z 4 , and Z 5 are each individually a member selected from the group consisting of a halogen atom, an alkoxy group, a phenoxy group, an acyloxy group and a hydrocarbon group having from 1 to 20 carbon atoms, and at least one of Z 3 , Z 4 , Z 5 is a halogen atom, an alkoxy group, a phenoxy group, or an acyloxy group; Z 6 is a member selected from the group consisting of an oxygen atom, an imino group, an alkylene group having from 1 to 20 carbon atoms, an arylene group having from 1 to 20 carbon atoms, and an oxaalkylene group having from 1 to 20 carbon atoms; and n is an integer of from 0 to 10; wherein the ion containing compound is chemically bonded to a fine particulate carrier.