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Eastham, GB
Derek Anthony Eastham, Chester Cheshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20100187433 | IMPROVED PARTICLE BEAM GENERATOR - A particle beam generator comprising particle extraction means disposed adjacent a particle source and operable to extract particles from such a source into an extraction aperture of the extraction means to form a particle beam, particle accelerating means operable to accelerate the extracted particles to increase the energy of the beam, and focussing means operable to focus the particle beam, each of said extraction means, accelerating means and focussing means being arranged in sequence and having apertures therethrough and in alignment to define a passageway through which the particles are constrained to move, characterised in that the extraction means comprises a lens structure comprising at least a pair of electrodes separated by a layer of insulating material allowing the application of different potentials to each of the lens structure electrodes, one of said electrodes comprising an extraction plate having an extraction aperture formed therein, by means of which extraction plate particles may be drawn from the particle source and through the extraction aperture by means of a potential difference between the source and said extraction plate. | 07-29-2010 |
Derek Anthony Eastham, Chester GB
| Patent application number | Description | Published |
|---|---|---|
| 20090206271 | FOCUSSING MASK - A mask suitable for use with a particle beam source such as ion or electron source for forming features and structures and writing on surfaces of materials. The mask comprising an aperture plate, having a plurality of apertures, and focusing means disposed to underlie the aperture plate. The plurality of apertures forming an array whereby each plate aperture is adapted to receive a portion of a particle beam incident on the aperture plate. Each portion of particle beam then passes through focusing means through which the portion of beam is focused onto the surface. The mask thereby forming a plurality of high resolution simultaneously operable focused particle beams. | 08-20-2009 |
Graham Ronald Eastham, Redcar GB
| Patent application number | Description | Published |
|---|---|---|
| 20100010261 | PRODUCTION OF AMINES - A process for the hydrogenation of carboxylic acids and/or derivatives, particularly amides, is described. The process includes reacting an acid or derivative such as an amide with a source of hydrogen in the presence of a catalyst system. The catalyst system obtainable by combining: (a) a source of ruthenium, and (b) a phosphine compound of general Formula I: (Formula I). The hydrogenation reaction is carried out in the presence of a low concentration of water or at low pressure or in the presence of a source of ammonia or the hydrogenation reaction is carried out in the absence of water or a combination of these factors is utilised. The invention also relates to the use of ammonia in the production of primary amines by hydrogenation of carboxylic acids and/or derivatives thereof or a process for the production of primary amines generally. | 01-14-2010 |
| 20100022799 | CARBONYLATION OF CONJUGATED DIENES - A process for the carbonylation of a conjugated diene is described. The process comprises the steps of reacting a conjugated diene with carbon monoxide and a co-reactant having an active hydrogen in the presence of a solvent system and a catalyst system. The solvent system comprises a an aromatic carboxylic acid or, under some conditions, any carboxylic acid. The catalyst system is obtainable by combining: a. a metal of Group 8, 9 or 10 or a compound thereof: and b. a bidentate ligand of general formula (I) X | 01-28-2010 |
| 20100113255 | NOVEL CARBONYLATION LIGANDS AND THEIR USE IN THE CARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS - Novel bidentate ligands of general formula (I) are described Formula (I): R represents a hydrocarbyl aromatic structure. The substituent(s) Yx on the aromatic structure has a total X=1- | 05-06-2010 |
| 20100197958 | PROCESS FOR THE CARBONYLATION OF AN ETHYLENICALLY UNSATURATED COMPOUND AND A CATALYST SYSTEM - A process for the carbonylation of an ethylenically unsaturated compound comprising the step of reacting said compound with carbon monoxide in the presence of a co-5 reactant having a mobile hydrogen atom and a catalyst system is described. The catalyst system is obtainable by combining: (a) a metal of Group 8, 9 or 10 or a suitable compound thereof; (b) a ligand of general formula (I): and c) optionally, a source of anions. The invention is characterised in that the catalyst system includes an enhancer compound comprising an aromatic ring or ring system substituted by at least one hydroxyl group wherein the hydroxyl group pKa at 25° C. is greater than 3.0 and less than 9.1, the said enhancer compound excluding 3-quinolinol. Catalyst systems for use with the enhancer compound are described as are a method of increasing the efficacy of a catalyst system for the carbonylation of ethylenically unsaturated compounds and a method of increasing the rate of carbonylation of an ethylenically unsaturated compound comprising the step of adding such a compound to the reaction. | 08-05-2010 |
Graham Ronald Eastham, Durham GB
| Patent application number | Description | Published |
|---|---|---|
| 20090312561 | METAL COMPLEXES - The invention concerns metal complexes and their preparation, in particular a metal complex MLnXm, where M is a metal of group 8, 9 or 10 and X is a halide, HCO3—, NO3—, CO32— or carboxylate. n is a number equal to or less than the coordination number of the metal and m is 1 or 2 and is equal to the oxidation state of the metal. The ligand L may be a bidentate phosphine of formula (I), (II), (III) or (IV) as set out herein. The process of production comprises reacting an ammine compound of metal M with a complexing compound, which is preferably a phosphine. | 12-17-2009 |
| 20110137059 | PROCESS FOR THE CARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS, NOVEL CARBONYLATION LIGANDS AND CATALYST SYSTEMS INCORPORATING SUCH LIGANDS - A novel bidentate catalytic ligand of general formula (I) is described. R represents a hydrocarbyl aromatic structure having at least one aromatic ring to which Q | 06-09-2011 |
Graham Ronald Eastham, Co Durham GB
| Patent application number | Description | Published |
|---|---|---|
| 20090216041 | Catalyst System - A continuous carbonylation process for high turnover carbonylation, and a carbonylation reaction medium and product stream thereof. The process comprises carbonylating an ethlenically unsaturated compound with carbon monoxide in the presence of a source of hydroxyl groups and a catalyst system. The catalyst system comprising: (a) a bidentate phosphine, arsine or stibine ligand; and (b) a catalytic metal selected from a group VIB or group VIIIB metal or a compound thereof. The catalytically active concentration of said catalytic metal, measured as the ACCF (product Kg·hr | 08-27-2009 |
John Frederick Eastham, Bath GB
| Patent application number | Description | Published |
|---|---|---|
| 20100117461 | ELECTROMOTIVE MACHINES - An electromotive machine ( | 05-13-2010 |
| 20100117479 | ELECTROMOTIVE MACHINES - An electromotive machine ( | 05-13-2010 |