Phillips Petroleum Company

Erik Licht

M Bruce Welch

Helmut G Alt

Bryan E Hauger

A process for producing a new metallocene comprising reacting a first bridged metallocene which has an olefinically unsaturated with about two molar equivalents of an alkali metal alkyl, catalyst systems resulting from the combination of the resulting metallocenes and a cocatalyst, and polymerization processes using such catalyst systems are disclosed.

Oligomeric metallocenes and their use

A process for producing a metallocycle metallocene comprising reacting a reactant metallocene which has a cyclopentadienyl group having an alkenyl group attached which has at least 3 carbon atoms with about 2 molar equivalents of an alkali metal alkyl having at least 4 carbon atoms, catalyst systems resulting from the combination of the metallocycle metallocene and an organic cocatalyst, and polymerization processes using such catalyst systems are disclosed.

Multicyclic metallocycle metallocenes and their use

Metallocycle metallocenes are produced by reacting a first metallocene having an aralkyl group or an aryl dialkyl silyl group attached to a cyclodienyl group with about two molar equivalents of an alkali metal alkyl having at least 4 carbon atoms. The use of the metallocycle metallocenes as components of catalyst for the polymerization of olefins is also disclosed.

Metallocycle metallocenes and their use

Substituted metallocenes which have a substituent selected from the group consisting of aryl alkyl, aryl alkyl silyl, and aryl silyl groups, catalyst systems resulting from the combination of such metallocenes and a cocatalyst, and for producing olefins using such catalyst systems.

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Bayreuth, Germany

Erik Licht