Abstract: A lubricating composition comprises an oil of lubricating viscosity, a metal-free pre-ceramic polymer and one or more co-additives. The metal-free pre-ceramic polymer comprises a plurality of repeat units which do not contain oxygen. The pre-ceramic polymers provide the lubricating oil composition with antiwear properties. Also described is a method of lubricating an internal combustion engine and the use of a lubricating oil composition containing a pre-ceramic polymers to inhibit wear in an internal combustion engine.

Abstract: A lubricating oil composition which contains, or is made by admixing: (A) an oil of lubricating viscosity, in a major amount; (B) at least one oil-soluble or oil-dispersible sulfurized fatty acid ester, as an additive in an amount providing the lubricating oil composition with greater than or equal to 0.02 mass % sulphur; and, (C) at least one oil-soluble or oil-dispersible alkali metal or alkaline earth metal salicylate detergent, as an additive in an effective minor amount, providing greater than or equal to 5 mmol of salicylate soap per kilogram of the lubricating oil composition, wherein the lubricating oil composition does not contain a phosphorus ester additive.

Abstract: A lubricating oil composition which comprises a sulphur containing anti-oxidant and an alkene which exhibits improved nitrile elastomer seal compatibility.

Abstract: A lubricating oil composition which comprises a sulphur containing anti-oxidant and an alkene which exhibits improved nitrile elastomer seal compatibility.

Abstract: A lubricating composition comprises an oil of lubricating viscosity, a metal-free pre-ceramic polymer and one or more co-additives. The metal-free pre-ceramic polymer comprises a plurality of repeat units which do not contain oxygen. The pre-ceramic polymers provide the lubricating oil composition with antiwear properties. Also described is a method of lubricating an internal combustion engine and the use of a lubricating oil composition containing a pre-ceramic polymers to inhibit wear in an internal combustion engine.

Abstract: A composition for use in fabricating opto-electrical devices comprising a solution processable triazine host material and a phosphorescent moiety.

Abstract: A lubricating oil composition which contains, or is made by admixing: (A) an oil of lubricating viscosity, in a major amount; (B) at least one oil-soluble or oil-dispersible sulfurized fatty acid ester, as an additive in an amount providing the lubricating oil composition with greater than or equal to 0.02 mass % sulphur; and, (C) at least one oil-soluble or oil-dispersible alkali metal or alkaline earth metal salicylate detergent, as an additive in an effective minor amount, providing greater than or equal to 5 mmol of salicylate soap per kilogram of the lubricating oil composition, wherein the lubricating oil composition does not contain a phosphorus ester additive.

Abstract: The present invention relates to lubricating oil compositions comprising sulfurised esters that exhibit good antioxidancy performance whilst maintaining nitrile elastomer seal compatibility

Abstract: A composition for use in fabricating opto-electrical devices comprising a solution processable triazine host material and a phosphorescent moiety.

Abstract: A composition for use in fabricating opto-electrical devices comprising a solution processable triazine host material and a phosphorescent moiety.

Abstract: A light emitting device comprising: an anode; a cathode; a light emissive layer located between the anode and the cathode, said light emissive layer comprising a charged metal complex for emitting light and a counterion or counterions with sufficient charge to balance the change on the charged metal complex; characterized in that the counterion or counterions are substantially immobile so (that light output from the device is immediate, provided that the combined charged metal complex and counterion do not have General Formula: (I) or (II); where C—N is a cyclometallated liquid.

Abstract: An organic light-emitting device comprising: an anode; a cathode; a light-emitting layer located between the anode and the cathode, said light-emitting layer containing a light-emitting metal complex comprising general formula 1: (1) where M represents Re(I), W(0), Ir(III), or Os(II); L1 represents a tridentate ligand; and L2, L3 and L4 represent ligands, characterised in that L1 comprises general formula 2:(2) where R1 represents a bridging group; and Ar1, Ar2 and Ar3 each independently represents a group comprising a heteroaryl ring and * indicates coordination to M.

Abstract: The present invention relates to lubricating oil compositions comprising sulfurised esters that exhibit good antioxidancy performance whilst maintaining nitrile elastomer seal compatibility

Abstract: Compositions of a mixture of (A) a polymerizable compound, which undergoes polymerization on exposure to heat or to actinic radiation, having the general formula wherein Q is an organic charge transporting fragment, L is a linker group, X is a group capable of undergoing free radical or anionic polymerization on exposure to heat or actinic radiation, m is 0 or 1, and n is an integer having a value of 2 or more; and (B) a phosphorescent material are described, as is an organic light-emitting diode (OLED) device comprising at least one emissive layer that has been formed by polymerizing such a composition. A method for forming an OLED, including depositing a layer containing the polymerizable composition from solution and exposing the layer to heat or actinic radiation to induce polymerization, is also disclosed.

Abstract: A method of forming an electroluminescent device comprising the steps of: providing a substrate comprising a first electrode for injecting charge carriers of a first type; forming an electroluminescent layer having a surface by depositing onto the substrate a composition comprising a host material and a light-emitting dopant monomer of formula (I): A-C—(X)n??(I) wherein X represents a polymerisable group; A represents a light-emitting group; C represents a bond or a spacer group and n is an integer; rendering at least some of the electroluminescent layer insoluble in a solvent by polymerising the monomer of formula (I); exposing the electroluminescent layer to the solvent; and depositing a second electrode capable of injecting charge carriers of a second type over the electroluminescent layer.

Abstract: A composition for use in fabricating opto-electrical devices comprising a solution processable triazine host material and a phosphorescent moiety.

Abstract: An organic light-emitting device comprising: an anode; a cathode; a light-emitting layer located between the anode and the cathode, said light-emitting layer containing a light-emitting metal complex comprising general formula 1: (1) where M represents Re(I), W(0), Ir(III), or Os(II); L1 represents a tridentate ligand; and L2, L3 and L4 represent ligands, characterised in that L1 comprises general formula 2:(2) where R1 represents a bridging group; and Ar1, Ar2 and Ar3 each independently represents a group comprising a heteroaryl ring and * indicates coordination to M.

Abstract: A light emitting device comprising: an anode; a cathode; a light emissive layer located between the anode and the cathode, said light emissive layer comprising a charged metal complex for emitting light and a counterion or counterions with sufficient charge to balance the charge on the charged metal complex; characterised in that the counterion or counterions are substantially immobile so that light output from the device is immediate, provided that the combined charged metal complex and counterion do not have General Formula I or II: where C—N is a cyclometallated ligand.

Abstract: A method of forming an electroluminescent device comprising the steps of: providing a substrate comprising a first electrode for injecting charge carriers of a first type; forming an electroluminescent layer having a surface by depositing onto the substrate a composition comprising a host material and a light-emitting dopant monomer of formula (I): A-C—(X)n ??(I) wherein X represents a polymerisable group; A represents a light-emitting group; C represents a bond or a spacer group and n is an integer; rendering at least some of the electroluminescent layer insoluble in a solvent by polymerising the monomer of formula (I); exposing the electroluminescent layer to the solvent; and depositing a second electrode capable of injecting charge carriers of a second type over the electroluminescent layer.

Abstract: Compositions of a mixture of (A) a polymerisable compound, which undergoes polymerisation on exposure to heat or to actinic radiation, having the general formula wherein Q is an organic charge transporting fragment, L is a linker group, X is a group capable of undergoing free radical or anionic polymerisation on exposure to heat or actinic radiation, m is 0 or 1, and n is an integer having a value of 2 or more; and (B) a phosphorescent material are described, as is an organic light-emitting diode (OLED) device comprising at least one emissive layer that has been formed by polymerising such a composition. A method for forming an OLED, including depositing a layer containing the polymerisable composition from solution and exposing the layer to heat or actinic radiation to induce polymerisation, is also disclosed.