Pettman
Alan John Pettman, Kent GB
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20090306384 | Process for the Production of Benzopyran-2-ol Derivatives - The invention provides a process for producing a compound of formula (I), | 12-10-2009 |
Alan John Pettman, Sandwich GB
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20150239867 | Process for the Preparation of Voriconazole and Analogues Thereof - The present invention provides a process for preparing a compound of formula: (Formula XI and XII) (XI) (XII) wherein X, Y, Z, A, B and E are as defined herein, by reacting a compound of formula: (Formula XIII) (XIII) with a compound of formula: (Formula XIV and XV) (XIV) (XV) respectively, in the presence of a transition metal catalyst, a ligand suitable for use with 15 the catalyst and a reducing agent. The invention also provides novel intermediates. | 08-27-2015 |
Roger Pettman, London GB
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20100233314 | SOLVENT-FREE SYNTHESIS OF AMPHIPHILIC POLYMERIC MATERIAL - The present invention provides a method for making a composition comprising an amphiphilic polymeric material which comprises a straight or branched chain carbon-carbon backbone and a multiplicity of side chains attached to the backbone; wherein in the method, backbone precursors comprising acylating groups are mixed with side chain precursors which comprise a nucleophilic group at at least one terminus, to form a reaction mixture; the backbone precursors, side chain precursors and/or the reaction mixture are heated; the reaction mixture is stirred; and the nucleophilic groups react with the acylating groups to form the amphilphilic polymeric material wherein the side chains are linked to the backbone via acyl linkages; characterised in that the reaction mixture does not comprise organic solvent. | 09-16-2010 |
Roger B. Pettman, Marco Island, FL US
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20100233100 | AMPHIPHILIC COPOLYMERIC MATERIAL - An amphiphilic polymeric material which has a straight or branched chain polymer backbone and a multiplicity of side chains attached to the backbone, wherein the backbone is a copolymer of at least one ethylenically-unsaturated aliphatic hydrocarbon monomer and maleic anhydride, or is a terpolymer of maleic anhydride, ethylene, and a further ethylenically unsaturated monomer. A method of synthesising said polymeric material is also provided, together with chewing gum bases, compositions and emulsions comprising amphiphilic polymeric materials. | 09-16-2010 |
Roger B. Pettman, Winter Park, FL US
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20160137864 | SUPRAMOLECULAR ENCRYPTED FLUORESCENT SECURITY INK COMPOSITIONS - Fluorescent dyes, ink compositions comprising the dyes, methods and devices for printing the ink compositions, images printed using the ink compositions and methods for authenticating the printed images are provided. The fluorescent dyes are heterorotaxanes that include large macrocyclic rings around fluorophores and are capable of emitting solid-state fluorescence. When the heterorotaxanes are combined with encapsulating agents and competitive binding agents in aqueous solution, the resulting ink composition exhibits a complex, dynamic equilibrium that provides a tunable fluorescence emission spectrum with a non-linear response to the dye concentration. | 05-19-2016 |