Patent application number | Description | Published |
20090030211 | Process for the Preparation of Fipronil, an Insecticide, and Related Pyrazoles - This invention relates to a process for the preparation of 5-amino-1-phenyl-3-cyano-4-trifluoromethyl sulphinyl pyrazoles as defined by Formula-I, | 01-29-2009 |
20090240020 | Polyether ketone, its monomer and its phenolate - A process for the preparation of an alkali metal salt of 4-chloro-4′-hydroxy benzophenone including the steps of (a) preparing purified 4-chloro-4′-hydroxy benzophenone by a process including distilling under reduced pressure a liquid containing 4-chloro-4′-hydroxy benzophenone and a solvent selected from diphenyl sulphone, diphenylene sulphone, benzophenone and dichlorobenzophenone, and then (b) preparing the alkali metal salt of thus purified 4-chloro-4′-hydroxy benzophenone by the reaction of the purified 4-chloro-4′-hydroxy benzophenone with a stoichiometric excess of at least one alkali metal base. There is also described a polymerization process using the alkali metal salt to yield PEK with high inherent viscosity and improved mechanical and thermal properties. | 09-24-2009 |
20120149915 | METHOD FOR SYNTHESIS OF N-ALKYL CARBAZOLE AND DERIRATIVES THEREOF - Disclosed is a process for the preparation of N-alkyl carbazole. Said process comprises: a) chlorinating cyclohexanone to form 2-chlorocyclohexanone; b) reacting 2-chlorocyclohexanone with N-ethyl aniline to form 2-(N-ethyl anilino) cyclohexanone; c) cyclizing 2-(N-ethyl anilino) cyclohexanone by refluxing with simultaneous water removal to obtain 9-ethyltetrahydrocarbazole; d) treating 9-ethyl-tetrahydrocarbazole with concentrated hydrochloric acid followed by water wash for removing N-ethyl aniline; e) dehydrogenating 9-ethyltetrahydrocarbazole by heating 9-ethyltetrahydrocarbazole in a solvent, in presence of a catalyst to obtain N-alkyl carbazole. | 06-14-2012 |
20130030190 | PROCESS FOR SYNTHESIS FIPRONIL - The present disclosure relates to a process for trifluoromethylsulfinyl pyrazole compound of formula I, | 01-31-2013 |
20130101483 | PROCESS FOR EXTRACTING METALS FROM ALUMINOFERROUS TITANOFERROUS ORES AND RESIDUES - A process for extracting metal values from ores or residues is disclosed. The process mentioned above is mainly suitable for aluminoferrous ores such as bauxite, titanoferrous ores such as ilmenite, or residues such as red mud waste. The process involves pulverizing the ore and/or residue and mixing with a carbonaceous material, followed by smelting the iron values and slag in the mixture to yield molten iron and oxides of aluminum and titanium. The process is simple, cost-effective, and provides effective extraction of high purity metal values. | 04-25-2013 |
20130303581 | POLYMORPHISM IN 5-AMINO-1-(2,6-DICHLORO-4-TRIFLUOROMETHYLPHENYL)-3-CYANO-4-TRIFLUORO METHYL SULFINYL PYRAZOLE - The present invention provides novel crystalline polymorphic forms of fipronil and processes for preparing the same. The present invention also provides a pesticidal composition containing a pesticidally effective amount of a crystalline form of fipronil and a method for controlling pests using a pesticidally effective amount of a crystalline form of fipronil or its composition. | 11-14-2013 |
20140194630 | PROCESS FOR SYNTHESIS OF FIPRONIL - A process for preparation of Fipronil (i.e. 5-amino-1-(2, 6-dichloro-4-trifluoromethylphenyl)-3-cyano-4-trifluoro-methylsulphinyl-pyrazole) is provided, which comprises oxidizing 5-amino-1-(2,6-dichloro-4-trifluoromethylphenyl)-3-cyano-4-tri-fluoromethylthio-pyrazole with sulfuric acid and hydrogen peroxide as oxidizing agent in the presence of a solvent such as ethylene dichloride, chlorobenzene. | 07-10-2014 |
20140288311 | BIS-QUINOPHTHALONE PIGMENT AND A PROCESS FOR PREPARING THE SAME - The present disclosure relates to a bis-quinophthalone pigment of Formula I, and a process for the same. | 09-25-2014 |
20140296529 | BIS-QUINALDINE COMPOUND AND A PROCESS FOR PREPARING THE SAME - The present disclosure relates to a bis-quinaldine compound of formula I and a process for the same. | 10-02-2014 |
20150080502 | POLYMERIC BLEND - The present disclosure relates to a polymer composition comprising a polymer blend of Polyaryl Ether Ketone (PAEK) and Poly(2,5-benzimidazole) characterized with enhanced mechanical and wear resistance properties as compared to commercial polymer blends of Polyaryl Ether Ketone and Polybenzimidazole. The present disclosure also relates to shaped articles derived from the polymer composition of the present disclosure. | 03-19-2015 |