Abstract: Metal complexes comprising a polycyclic, fused ring ligand or inertly substituted derivative thereof comprising at least: (1) a cyclopentadienyl ring, (2) a 7 membered polyatomic ring, and (3) one or more aromatic ring systems, with the proviso that said 7 membered ring (2), is fused to both the cyclopentadienyl ring (1), and said one or more aromatic ring systems (3), and substituted in at least one ring position with a substituent group resulting in sp2 hybridization on the ring atom bonded thereto; polymerization catalysts; and olefin polymerization processes using the same are disclosed.

Abstract: Biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes wherein the diene is bound to the transition metal either in the form of a &sgr;-complex or a &pgr;-complex in combination with strong Lewis acids, Bronsted acid salts, carbenium ion salts, salts containing a cationic oxidizing agent, or subjected to bulk electrolysis in the presence of compatible, inert non-coordinating anions form catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.

Abstract: Novel boron-substituted derivatives of cyclopentadiene and metal complexes thereof which are useful in the formulation of catalyst for the polymerization of olefins.

Abstract: Compounds and metal complexes comprising a polycyclic, fused ring ligand or inertly substituted derivative thereof having up to 60 atoms other than hydrogen, said ligand comprising at least: (1) a cyclopentadienyl ring, (2) a 6,7,or 8 membered ring other than a 6-carbon aromatic ring, and (3) an aromatic ring, with the proviso that said 6, 7, or 8 membered ring (2), is fused to both the cyclopentadienyl ring (1), and the aromatic ring (3), polymerization catalysts, a process to prepare the novel compounds and complexes, and olefin polymerization processes using the same are disclosed.

Abstract: A catalyst and process of polymerizing olefins using it are described, the catalyst comprising a cocatalyst and a metal complex preferably of the formulas 4-9, wherein M is a group 4 metal, Z is a boron atom, and T is one of

Abstract: Novel substantially random functionalized interpolymers and processes for making them are disclosed. The novel interpolymers include those prepared from ethylene and vinyl aromatic monomers such as ethylene-styrene interpolymers which are then functionalized with a variety of electrophilic and nucleophilic reagents.

Abstract: Fluorohydrocarbyl substituted boratabenzene compounds, especially perfluorophenyl substituted boratabenzene compounds, are useful olefin polymerization cocatalysts with metallocenes.

Abstract: Novel substantially random functionalized interpolymers and processes for making them are disclosed. The novel interpolymers include those prepared from ethylene and vinyl aromatic monomers such as ethylene-styrene interpolymers which are then functionalized with a variety of electrophilic and nucleophilic reagents.

Abstract: An improved catalyst composition for addition polymerizations comprising: (A) a Group 4 metal complex the includes an anionic, polycyclic, fused ring ligand system containing at least 4 fused rings, and bonded to M by means of delocalized &pgr;-electrons, (B) a cocatalyst, and (C) a C4-5 conjugated diene.

Abstract: Racemic isomers of metal complexes of Groups 3, 4 or the Lanthanides, addition polymerization catalysts containing the same and olefin polymerization processes using the same comprising a boratabenzene group or divalent derivative thereof are disclosed.

Abstract: Group 4 metal complexes comprising a cyclopentaphenanthreneyl ligand, catalytic derivatives thereof and their use as olefin polymerization catalysts, especially for the copolymerization of ethylene and a vinylaromatic monomer are disclosed. The resulting copolymers are uniform, pseudo-random copolymers of ethylene and a vinylaromatic monomer having a cluster index, CIES less than 1.0 and a polymerized vinylaromatic monomer content less than 50 mole percent.

Abstract: Group 4 metal complexes comprising a cyclopentaphenanthreneyl ligand, catalytic derivatives thereof and their use as olefin polymerization catalysts, especially for the copolymerization of ethylene and a vinylaromatic monomer are disclosed. The resulting copolymers are uniform, pseudo-random copolymers of ethylene and a vinylaromatic monomer having a cluster index, CIES less than 1.0 and a polymerized vinylaromatic monomer content less than 50 mole percent.

Abstract: Novel substantially random functionalized interpolymers and processes for making them are disclosed. The novel interpolymers include those prepared from ethylene and vinyl aromatic monomers such as ethylene-styrene interpolymers which are then functionalized with a variety of electrophilic and nucleophilic reagents.

Abstract: A process for forming 4-ketocyclopentene and substituted 4-ketocyclopentene compounds starting from the corresponding 1-carbohydrocarbyloxy-2-keto-4-hydroxy-5-cyclopentene by reduction followed by decarboxylation.

Abstract: A Group 4 transition metal complex containing a boron or aluminum bridging group containing a nitrogen containing electron donating group, especially an amido group.

Abstract: A process for preparing homopolymers and copolymers of addition polymerizable monomers, or mixtures of such monomers, and the resulting polymer, wherein the process comprising contacting said monomer or mixture under high monomer conversion polymerization conditions with a catalyst composition comprising: a) a catalyst system comprising a Group 3-10 metal complex; and c) a silane, or hydrocarbylsilane corresponding to the formula: JjSiH4−j or AnJjSiH4-(n+j)  wherein: J is C1-40 hydrocarbyl, A is a C2-20 alkenyl group, n is 1 or 2, and j is 0 or 1; wherein the polymer comprises from 0.1 to 100 long chain branches per 10,000 carbons, and at least some of which comprise a silane branching center.

Abstract: Fluorohydrocarbyl substituted boratabenzene compounds, especially perfluorophenyl substituted boratabenzene compounds, are useful olefin polymerization cocatalysts with metallocenes.

Abstract: Boratabenzene cocatalysts, especially novel pentafluorophenyl boratabenzenes, are useful cocatalysts or activators with metallocenes. They are less expensive than prior art activators, are soluble and offer more irreversible reactions. Compositions comprise at least one metallocene catalyst and at least one dihydroboratabenzene or anion thereof. Processes include polymerizations with metallocenes in the presence of a boratabenzene cocatalyst.

Abstract: The present invention relates to &agr;-olefin/vinyl aromatic monomer interpolymers with characteristic signals in their carbon 13 NMR spectra. In particular, ethylene/styrene copolymers of the present invention have peaks in the carbon 13 NMR spectra which appear in the chemical shift range 43.70-44.25 ppm, preferably from 43.75-44.25 ppm and 38.0-38.5 ppm, said peaks being at least three times the peak to peak noise. The interpolymers are prepared by polymerizing the appropriate mixture of monomers in the presence of a catalyst such as racemic-(dimethylsilanediyl(2-methyl-4-phenylindenyl)) zirconium dichloride. The polymers of the present invention posses increased modulus as determined from both tensile stress/strain and dynamic mechanical data at comparable vinyl aromatic monomer levels.

Abstract: Group 4 metal complexes comprising a cyclopentaphenanthreneyl ligand, catalytic derivatives thereof and their use as olefin polymerization catalysts, especially for the copolymerization of ethylene and a vinylaromatic monomer are disclosed. The resulting copolymers are uniform, pseudo-random copolymers of ethylene and a vinylaromatic monomer having a cluster index, CI.sub.ES less than 1.0 and a polymerized vinylaromatic monomer content less than 50 mole percent.