Patent ID: 6136743
Filing Date: 2000-10-24
Classification: C08F,C08L,Y02P

Abstract:
An olefin polymerization catalyst comprising:(a) (a-1) a compound of a transition metal from Group 4 of the periodic table, which contains a ligand having a cyclopentadienyl skeleton, or(a-2) a titanium catalyst component containing magnesium, titanium, and halogen,(b) a compound of a transition metal from any of Groups 8 to 10 of the periodic table, expressed by the general formula (I) below,(c) at least one compound selected from among (c-1) organic aluminum oxycompounds, (c-2) alkylboronic acid derivatives, and (c-3) compounds reacting with the transition metal compound to form an ion pair, and if necessary,(d) an organometallic compound: ##STR36## wherein M indicates a transition metal atom from any of Groups 8 to 10 of the periodic table,X.sup.1 and X.sup.2 may be the same as or different from each other and are each a nitrogen atom or a phosphorus atom,R.sup.1 and R.sup.2 may be the same as or different from each other and are each a hydrogen atom or hydrocarbon group,m and n may be the same as or different from each other and are each a value of 1 or 2 that satisfies the valence of X.sup.1 and X.sup.2, respectively,R.sup.3 is a group that binds X.sup.1 and X.sup.2 and indicates ##STR37## (where R.sup.6, R.sup.7, R.sup.61, R.sup.62, R.sup.71, and R.sup.72 may be the same as or different from each other and are each a hydrogen atom or hydrocarbon group),R.sup.4 and R.sup.5 may be the same as or different from each other and are each a hydrogen atom, halogen atom, hydrocarbon group, --OR.sup.8, --SR.sup.9, --N(R.sup.10).sub.2, or --P(R.sup.11).sub.2 (where each of R.sup.8 to R.sup.11 indicates an alkyl group, cycloalkyl group, aryl group, aralkyl group, or organic silyl group, the groups R.sup.10 may be bonded mutually to form a ring, and the groups R.sup.11 may be bonded mutually to form a ring), R.sup.4 and R.sup.5 may be bonded to each other to form a ring, andtwo or more among R.sup.1, R.sup.2, R.sup.6 (or R.sup.61, R.sup.62), and R.sup.7 (or R.sup.71, R.sup.72) may be bonded to each other to form a ring.