Abstract: The invention relates to an elastomeric compound comprising at least one olefinic elastomer comprising ethylene, an ?-olefin, from 1 to 7 wt % vinyl norbornene and from 0 to 15 wt % of a second non-conjugated polyene, wherein the wt % are related to the total weight of ethylene, ?-olefin, vinyl norbornene and the second non-conjugated polyene, and which elastomer has long chain branching corresponding with ??<20, wherein ??, expressed in degrees, is calculated from the difference between the phase angle ? between stress and strain in a dynamic shear measurement at 125° C. at a frequency of 0.

Abstract: The invention relates to a process for the preparation of a polymer comprising at least aliphatic or aromatic hydrocarbyl C2-C20 mono or multiolefins in the presence of a catalyst, an activator wherein the catalyst and the activator are combined in a catalyst system according to formula (I) wherein R, R1, R2, R3, R4, R5, R6, R7, R8 and R9 can independently be chosen from substituted or unsubstituted alkyl or aryl groups having 1 to 20 carbon atoms, M is a group 4, or 5 metal; with valency v, La is a coordinating Lewis base with a=0, 1, or 2, being the number of ligands L and, Xi is an anionic ligand, with i=v?3, being the number of anionic ligands, the catalyst does not comprise boron and fluor atoms.

Abstract: The present invention relates to an injection system for injecting material into a receiving vessel, said injection system comprising: (i) an injection chamber provided with means to connect to the receiving vessel, and (ii) an injection capsule, adapted to fit within the injection chamber, and comprising a reservoir for the material and a valve, said injection system being adapted so that opening of the valve causes material contained within the reservoir to be injected into the receiving vessel by action of a pressure differential between the injection chamber and the receiving vessel. The present invention also relates to a method of injecting material into a receiving vessel using said injection system.

Abstract: The present invention relates to an injection system for injecting material into a receiving vessel, said injection system comprising: (i) an injection chamber provided with means to connect to the receiving vessel, and (ii) an injection capsule, adapted to fit within the injection chamber, and comprising a reservoir for the material and a valve, said injection system being adapted so that opening of the valve causes material contained within the reservoir to be injected into the receiving vessel by action of a pressure differential between the injection chamber and the receiving vessel. The present invention also relates to a method of injecting material into a receiving vessel using said injection system.

Abstract: The invention relates to a compound according to the formula (XR5−)(NR′4+), wherein X represents Si, Ge, Sn or Pb, the R groups may be the same or different, each being a monoanion chosen from the group comprising hydrogen, an alkyl group, an aryl group, an arylalkyl group, and the R′ groups may be the same or different, each representing a hydrocarbon group containing 1-10 carbon atoms. The invention also relates to a process for the preparation of a compound of formula (XR5−)(NR′4+), to an ion exchange process wherein the NR′4+ is exchanged for another cation, and to the use of (XR5−)(NR′4+) and the product of said ion exchange process as a cocatalyst in the polymerization of olefins.

Abstract: A system and method for examining chemical reactions, especially catalysed polymerisation reactions, uses an array of apparatuses 2 within a nitrogen filled glove box 42. A multi-pipetting robot 40 is arranged to deliver measured amounts of materials (e.g. catalyst components) to mixing vessels 24 which in turn are arranged to deliver the components to reactors 4 into which other components (e.g. monomer gases) are fed. A range of variables for reactions undertaken in apparatuses 2 are controlled by a computer 45 which also stores data relating to reactions effected in a database. A library of products can be made using the system under carefully controlled and reproducible conditions and parameters affecting the properties of products produced can be investigated.

Abstract: Catalyst compositions include a reduced transition metal complex of structure (I) and a cocatalyst. where, L1 and L2, may be the same or different, are anionic ligands, other than cyclopentadienyl group, amido group or phosphidino group. At least L1 is able to non-covalently interact with reduced transition metal M via one or more functional groups; for example, L1 can be a phenyl group in which at least one of the ortho-positions is substituted with a functional group capable of donating electron density to the transition metal M. L1 can also be a methyl group in which one or more or the alpha-positions is substituted with a functional group capable of donating electron density to the transition metal M. X, K, and m are defined in the specification. These catalysts may be easily formed as solids and provide improved catalytic performance.

Abstract: Process for the polymerization of olefins with a catalyst comprising a metallocene compound according to the formula and an aluminoxane comprising 0,5 to 15 mol % trialkylaluminium. Preferably the aluminoxane is methylaluminoxane and the trialkylaluminium is trimethylaluminium. The metallocene compound and/or the aluminoxane can be supported on a carrier material.

Abstract: Indenyl compound of formula (1) wherein: M is a transition metal from the lanthanides or from group 3, 4, 5 or 6 of the Periodic System of Elements, Q is an anionic ligand to M, k is the number of Q groups, R is a bridging group and Z and X are substituents, wherein R contains at least one sp2-hybridized carbon atom that is bonded to the indenyl group at the 2-position with the exclusion of Ti(deshydronorbiphenacene) dichloride.

Abstract: The invention relates to a bidentate phosphine ligand, the phosphorus atoms of the phosphine being connected via a bridge group, the bridge group of the bidentate phosphine ligand consisting of an ortho-anellated annular system, comprising two aryl groups, which aryl groups are connected by two bridges, the first bridge consisting of an --O-- or an --S-- atom and the second bridge being a group that contains an oxygen, sulphur, nitrogen, silicon or carbon atom or a combination of these atoms, the two phosphorus atoms being connected to the two aryl groups of the bridge group at the ortho-position relative to the --O-- or --S-- atom of the first bridge.The invention also relates to the use of this bidentate phosphium ligand in a catalyst system comprising also a transition metal compound which is used in the following type of reactions: hydroformylation hydrogenation, hydrocyanation, polymerization, isomerisation, carboxylation, cross coupling and metathesis.