| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568626000 | Benzene ring containing | 49 |
| 20100121111 | Alkoxylations of High Melting Point Substrates in Ketone Solvents - Substrate or starting compounds which have high melting points, for instance, having a melting point of 150° C. or higher and having at least one active hydrogen may be reacted with one or more alkylene oxide in a ketone solvent at reduced temperatures compared with conventional, molten methods to give an adduct product having reduced color. By at least partially alkoxylating the substrate, its potential for crystallization is disrupted and the partially alkoxylated substrate has a lower melting point than the original substrate permitting it to be more readily further alkoxylated at the reaction temperature. Suitable ketone solvents include, but are not necessarily limited to, methyl isobutyl ketone, diethyl ketone, methyl ethyl ketone, and mixtures thereof. The alkoxylation reaction may be conducted at a temperature in the range of about 30 to about 140° C. Suitable catalysts may include tertiary amines or caustic compounds such as NaOH and KOH. | 05-13-2010 |
| 20080255394 | High productivity process for alkylphenol ethoxylates - The present invention provides a process for the production of an alkylphenol ethoxylate involving charging a portion of product from a previous preparation (a “heel”) or an ethoxylate to a reactor, optionally, charging from about 0.2 wt. % to an amount equal to or greater than the weight of the heel of an alkylphenol starter to the reactor, charging ethylene oxide to activate a double metal cyanide (“DMC”) catalyst, adding the alkylphenol starter simultaneously with ethylene oxide for a portion of the process and continuing ethylene oxide addition following completion of the simultaneous alkylphenol starter and ethylene oxide addition. The process of the present invention provides significant improvements in cycle time and safety in producing ethoxylates which may find use in or as surfactants. | 10-16-2008 |
| 20110118509 | NOVEL 4-ALKYL 1-(3-METHOXY-2-PROPEN-1-YL) BENZENE COMPOUNDS AND THEIR USE IN PERFUME COMPOSITIONS - The present invention is directed to novel 4-alkyl 1-(3-methoxy-2-propen-1-yl)benzene compounds and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the novel compounds. | 05-19-2011 |
| 568629000 | Preparing by hydroxylation of benzene ring | 2 |
| 20120035397 | PROCESS FOR THE HYDROXYLATION OF PHENOLS AND OF PHENOL ETHERS - A process for the hydroxylation of phenols and of phenol ethers by hydrogen peroxide is described. More particularly a process for the hydroxylation of phenol by hydrogen peroxide is described. The described process can include hydroxylation of a phenol or of a phenol ether having at least one hydrogen atom at the ortho and para position of the hydroxyl group or of the ether group, by reaction of said phenol or phenol ether, with hydrogen peroxide, in the presence of an acid catalyst, wherein the reaction is carried out in the presence of an effective amount of a catalyst which is a mixture of at least two strong acids and wherein one of the acids is chosen from strong protonic acids and the other acid is chosen from superacids. | 02-09-2012 |
| 20100286451 | Process for producing 1,2-dialkoxy-3-fluorobenzene - The present invention relates to a process for producing a 2-fluoro-6-halophenol as an intermediate; a process for producing a 2-alkoxy-3-fluorophenol and further a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; a second process for producing a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; and a 2-alkoxy-3-fluorophenol. The 2-fluoro-6-halophenol can be obtained using a 2-fluorophenol as a starting material and through a sulfonation reaction, a halogenation reaction, and a deprotection reaction. The 2-fluoro-6-halophenol is alkyl-etherified, and subsequently the halogen atom is converted into a hydroxyl group to obtain the 2-alkoxy-3-fluorophenol, which is further alkyl-etherified to thereby obtain the 1,2-dialkoxy-3-fluorobenzene. Alternatively, a 1,2-dialkoxy-3-fluorobenzene is also obtained by converting the halogen atom of the 2-fluoro-6-halophenol into a hydroxyl group to thereby form 3-fluorocatechol and subsequently alkyl-etherifying two hydroxyl groups thereof. The processes of the invention realize low production costs and high process yields, and thus are suitable for industrial production of a 1,2-dialkoxy-3-fluorobenzene. | 11-11-2010 |
| 568630000 | Ether oxygen bonded directly to benzene ring | 39 |
| 20090012330 | METHOD FOR PRODUCING OPTICALLY ACTIVE ALCOHOL COMPOUND - A method for producing an optically active alcohol compound comprising reacting a cyclic ether compound with a phenol compound in the presence of an asymmetric complex obtained by reacting an optically active metal complex represented by the formula (1): | 01-08-2009 |
| 20120029243 | CATALYST- AND LIGNIN-COMPRISING COMPOSITION AND ITS USE FOR PREPARING AN AROMATICS COMPOSITION - The present invention relates to a composition (“composite”) comprising lignin and at least one catalyst dispersed in the composition. The invention further provides a process for producing such a catalyst- and lignin-comprising composition and its use for preparing an aromatics composition. | 02-02-2012 |
| 20110237838 | PROCESSES FOR CATALYTIC CONVERSION OF LIGNIN TO LIQUID BIO-FUELS AND NOVEL BIO-FUELS - Processes for conversion of lignin to products such as phenolic compounds and biofuels prepared from such phenolic compounds are disclosed and described. A process for conversion of a lignin material to bio-fuels can include subjecting the lignin material to a base catalyzed depolymerization reaction to produce a partially depolymerized lignin. The partially depolymerized lignin can then be subjected to a stabilization/partial hydrodeoxygenation reaction to form a partially hydrodeoxygenated product. Following partial hydrodeoxygenation, the partially hydrodeoxygenated product can be reacted in a hydroprocessing step to form a bio-fuel. Each of these reaction steps can be performed in single or multiple steps, depending on the design of the process. The production of an intermediate partially hydrodeoxygenation product and subsequent reaction thereof can significantly reduce or eliminate reactor plugging and catalyst coking. A variety of useful bio-fuels such as fuels, fuel additives, and the like, including gasoline and jet or rocket fuels are describe which can be readily produced from renewable lignin materials in an improved conversion process. | 09-29-2011 |
| 568631000 | Plural rings containing | 22 |
| 568632000 | Polycyclo ring system | 5 |
| 568633000 | Polyoxy | 5 |
| 20110301385 | CATALYST FOR OLEFIN POLYMERIZATION AND METHOD OF PREPARATION THEREOF - A catalyst for olefin polymerization and method of preparing the same are disclosed. | 12-08-2011 |
| 20090062570 | Host material for blue OLED and white light emitting device utilizing the same - The invention provides a host material for organic light emitting diodes, having the general formula: | 03-05-2009 |
| 20120095270 | NONCRYSTALLINE FORM OF FLUORENE DERIVATIVE AND PROCESS FOR PREPARATION THEREOF - An object of the present invention is to provide (i) a novel non-crystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene, which non-crystalline form maintains quality at a certain level, and is excellent as a polymer material, and (ii) a method of preparing the non-crystalline form. According to the present invention, molten 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene in a liquid form is cooled and therefore is solidified. With the method, it is possible to provide a novel non-crystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene which has a small risk that powder dust of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene might cause explosion or a health problem. Further, the non-crystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene can be adjusted arbitrarily in particle diameter by, for example, pulverizing the non-crystalline form in accordance with equipment or usage. In other words, the non-crystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene is advantageous in handleability industrially. | 04-19-2012 |
| 20100228058 | CYCLISATION PROCESS OF FORMING A MULTIPLE RING COMPOUND - The present invention relates to a cyclisation process of forming a multiple ring compound from an isoprenoid compound. The cyclisation process involves reacting the isoprenoid compound with an acetal initiator under conditions sufficient to form the multiple ring compound. The isoprenoid compound is contacted with an initiator an optionally with a catalyst. Cyclisation occurs by reaction of the initiator with the isoprenoid compound. Cyclic acetal compounds wherein the acetal forms part of 6-membered unsaturated ring are also defined. | 09-09-2010 |
| 20120029244 | METHOD FOR PRODUCING FLUORENE DERIVATIVE - A method for producing a fluorene derivative by reacting fluorenone with a phenol or a phenoxyalcohol in the presence of an acid catalyst includes: adding an alkali to an obtained reaction liquid containing a fluorene derivative; and concentrating a resultant mixture liquid without removing the alkali thus added and a reaction product of the alkali, thereby separating an unreacted phenol or unreacted phenoxyalcohol. | 02-02-2012 |
| 568640000 | Plural benzene rings bonded directly to the same carbon | 5 |
| 20080255395 | Process for producing bis-alkoxylated diols of bisphenol a from spent polycarbonate discs(PC) or PC waste - This invention provides one-pot reaction for digesting polycarbonate waste with alkylene glycol in the presence of a basic catalyst at 180° C. under normal atmospheric pressure. The digested product mixture was found to consist of bisphenol A (BPA) and monoalkoxylated and bisalkoxylated diols of BPA. Alkoxylation of BPA and monoalkoxylated diols of BPA is performed by adding urea or urea derivative (or carbonic acid ester or amine ester) to the digested product mixture at a high temperature under normal atmospheric pressure to obtain the final product, i.e., bisalkoxylated diols of BPA in high yield. The bisalkoxylated diols of BPA may be used as raw materials to synthesize polymer such as polyurethane (PU) or polyester. | 10-16-2008 |
| 568641000 | Polyoxy and halogen containing | 4 |
| 20130035514 | NEW PROCESSES FOR PRODUCING BENZOPHENONE DERIVATIVES - There is provided a process for the preparation of a compound of formula I, | 02-07-2013 |
| 20110015448 | METHOD FOR THE PREPARATION OF THERAPEUTICALLY VALUABLE TRIPHENYLBUTENE DERIVATIVES - The present invention concerns a method for the preparation of therapeutically valuable triphenylbutene derivatives, especially ospemifene or fispemifene. | 01-20-2011 |
| 20110082321 | ALCOHOLIC HYDROXYL-CONTAINING COMPOUNDS AND MAKING METHOD - Bisphenol derivatives having both alcoholic hydroxyl and allyl groups are novel and useful as reagents for modifying organic resins and silicone resins. | 04-07-2011 |
| 20080207956 | METHOD FOR THE PREPARATION OF THERAPEUTICALLY VALUABLE TRIPHENYLBUTENE DERIVATIVES - The present invention concerns a method for the preparation of therapeutically valuable triphenylbutene derivatives, especially ospemifene or fispemifene. | 08-28-2008 |
| 568642000 | Plural benzene rings bonded directly to each other | 8 |
| 20080319235 | PROCESS FOR THE PREPARATION OF RING COMPOUNDS - In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures. | 12-25-2008 |
| 20100185019 | CATALYST COMPOSITION AND PROCESS FOR PRODUCING CROSS-COUPLED COMPOUND USING SAME - A catalyst composition for a cross-coupling reaction comprising a nickel metal source, a fluorine source, and a nitrogen-containing heterocyclic compound having a specific structure, or a phosphine compound. Using this catalyst composition, a cross-coupled compound R | 07-22-2010 |
| 20120088936 | METHOD FOR SYNTHESIZING COMPOUND AND CATALYST FOR SYNTHESIS REACTION - In Suzuki Cross-Couplings, a palladium-containing perovskite-type composite oxide represented by the following general formula (1) is used as a catalyst for synthesis reaction: | 04-12-2012 |
| 568643000 | Polyoxy | 5 |
| 20130085306 | CHLOROFLUOROBENZENE COMPOUND, OPTICALLY ISOTROPIC LIQUID CRYSTAL MEDIUM AND OPTICAL DEVICE - A liquid crystal compound and a liquid crystal medium are described. The liquid crystal compound is stable to heat and light and has a large dielectric anisotropy and a large optical anisotropy. The liquid crystal medium has a wide temperature range of liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy, and exhibits an optically isotropic liquid crystal phase. The liquid crystal compound has 4 or 5 benzene rings, one of which is a chlorofluorobenzene ring. The liquid crystal medium is characterized in containing the liquid crystal compound and a chiral dopant and exhibiting an optically isotropic liquid crystal phase. | 04-04-2013 |
| 20110034738 | PROCESS FOR THE PREPARATION OF RING COMPOUNDS - In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures. | 02-10-2011 |
| 20100145105 | NOVEL PHENYLBORONIC ACID COMPOUNDS AND INTERMEDIATES AND PROCESSES FOR THE PREPARATION THEREOF - Vitamin D derivatives, notably non-steroidal vitamin D derivatives, are prepared from novel disubstituted phenylboronic acid compounds having the formula (I): | 06-10-2010 |
| 20120101310 | OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY, AND METHOD FOR PRODUCING ALPHA-AMINO ACID AND DERIVATIVE THEREOF BY USING THE SAME - The present invention discloses an optically active quarternary ammonium salt having axial asymmetry and a method for producing an α-amino acid and a derivative thereof using the same. The optically active quarternary ammonium salt having axial asymmetry of the present invention is a chiral phase-transfer catalyst that has a simple structure and that can be produced in a smaller number of process steps. The compound of the present invention is very useful as a phase-transfer catalyst in the synthesis of an α-alkyl-α-amino acid and a derivative thereof as well as an α,α-dialkyl-α-amino acid and a derivative thereof. Therefore, the compound of the present invention can be used in the development of novel foods and pharmaceuticals. | 04-26-2012 |
| 20120101309 | OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY, AND METHOD FOR PRODUCING ALPHA-AMINO ACID AND DERIVATIVE THEREOF BY USING THE SAME - The present invention discloses an optically active quanternary ammonium salt having axial asymmetry and a method for producing an α-amino acid and a derivative thereof using the same. The optically active quanternary ammonium salt having axial asymmetry of the present invention is a chiral phase-transfer catalyst that has a simple structure and that can be produced in a smaller number of process steps. The compound of the present invention is very useful as a phase-transfer catalyst in the synthesis of an α-alkyl-α-amino acid and a derivative thereof as well as an α,α-dialkyl-α-amino acid and a derivative thereof. Therefore, the compound of the present invention can be used in the development of novel foods and pharmaceuticals. | 04-26-2012 |
| 568644000 | Polyoxy | 3 |
| 20090018369 | PROCESS FOR PREPARING ERIANIN - A process for preparing Erianin (Dihydro Combretastation A-4), wherein 3,4,5-trimethoxy benzaldehyde is converted to phosphonium salt or phosphonate ester or the likes thereof, then reacted with isovanillin (3-hydroxyl-4-methoxyl benzaldehyde) including a protected hydroxyl in the 3-position, followed by hydrogenation and deprotection. | 01-15-2009 |
| 568645000 | Halogen containing | 1 |
| 20120190897 | LIQUID CRYSTAL COMPOUND HAVING NEGATIVE DIELECTRIC ANISOTROPY, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - The invention provides a liquid crystal compound having general physical properties necessary for the liquid crystal compound, namely, stability to heat, light and so forth, a small viscosity, a refractive index anisotropy having a suitable magnitude value, a dielectric anisotropy having a suitable magnitude value, steep electrooptical characteristics, a wide temperature range of a nematic phase, and an excellent compatibility with other liquid crystal compounds, in particular, a liquid crystal compound having a wide temperature range of the nematic phase; a compound represented by formula (i): | 07-26-2012 |
| 568646000 | Acyclic carbon to carbon unsaturation containing | 1 |
| 20130131390 | PROCESS FOR THE PRODUCTION OF SUBSTITUTED ELECTRON RICH DIPHENYLACETYLENES - The present invention relates to an improved process of production of substituted diphenylacetylenes (tolanes) of formula (I) which are starting materials for production of stilbenes products. | 05-23-2013 |
| 568647000 | Halogen containing | 1 |
| 20090264683 | CHLOROFLUOROBENZENE LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE - Such a liquid crystal compound is provided that has stability to heat, light and so forth, has a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy, and suitable elastic constants K | 10-22-2009 |
| 568648000 | Polyoxy | 10 |
| 20110009675 | Process for the Continuous Production of High Purity Phenolic Glycol Ether - Phenolic glycol ethers, e.g., ethylene glycol phenyl ether, are prepared by a continuous, nonaqueous process comprising the steps of (A) contacting under isothermal reactive conditions in a first reactor or reaction zone an alkylene oxide, e.g., ethylene oxide, with (i) a stoichiometric molar excess of a phenolic compound, e.g., phenol, and (ii) a catalytic amount of a base, e.g., sodium hydroxide, homogeneously dispersed throughout the phenolic compound, to form a first intermediate phenolic glycol ether product, (Bj transferring the first intermediate phenolic glycol ether product to a second reactor or reaction zone, and (C) subjecting the first intermediate phenolic glycol ether product to adiabatic reactive conditions in the second reactor or reaction zone to form a second intermediate phenolic glycol ether product comprising phenolic glycol ether, unreacted phenolic compound, catalyst, water and byproduct glycols. In addition, the mono-/di-product weight ratio can be adjusted by increasing or decreasing the amount of base catalyst employed. | 01-13-2011 |
| 20080228010 | Alkoxylation process for preparing ether alkanol derivatives of phenolic compounds - This invention provides an alkoxylation process for creating alkoxylating chain extension of phenolic compounds by reacting phenolic compounds with alkylene glycol and urea in the presence of suitable catalysts to obtain alkoxylated compounds, which may be used as polymer intermediates, especially for use as raw materials to synthesize polyurethane (PU) or polyester. | 09-18-2008 |
| 20120130133 | Method For Synthesizing Vitamin D Analogs - Processes for preparing vitamin D | 05-24-2012 |
| 568649000 | Halogen containing | 1 |
| 20110295042 | METHOD FOR PREPARING PROPARGYLIC ALCOHOL CATALYZED BY 2-MORPHOLINOISOBORNANE-10-THIOL - A method for preparing a propargylic alcohol catalyzed by 2-morpholinoisobornane-10-thiol (MITH) is disclosed, which includes reacting R | 12-01-2011 |
| 568650000 | Hydroxy bonded directly to the benzene ring (H of -OH may be replaced by a Group IA or IIA light metal) | 6 |
| 20090270654 | HEPATIC FIBROSIS INHIBITOR - The progression of hepatic fibrosis and hepatic cirrhosis caused by various hepatic disorders and damages such as chronic hepatitis can be restrained by hepatic fibrosis inhibitor containing a compound represented by the following chemical formula: | 10-29-2009 |
| 20090312582 | Synthesis of butylated hydroxyanisole from tertiary butyl hydroquinone - A process for production and novel physical forms of butylated hydroxyanisole (BHA) wherein tertiary butyl hydroquinone (TBHQ) reacts within a range of about 30 to 50° C. with stoichiometrically slight excess of dimethyl sulphate and sodium hydroxide. The sodium hydroxide is added stoichiometrially in slight excess of dimethyl sulphate. A major portion of BHA formed in this reaction was recovered in a crystalline form in which 3-t-butyl-4-hydroxyanisole (3 isomer) is at least at a level of about 99%, usually at about 99.5% or more, and TBHQ at 100 ppm or less. BHA remaining in a mother liquor after crystallization was recovered by distillation and had the same purity as the crystalline BHA. The crystalline form was prepared as a low density, as well as a high density, form and could also be converted into compressed forms including flakes, tablets and the like. | 12-17-2009 |
| 568651000 | Plural ether oxygens bonded directly to the benzene ring | 2 |
| 20110263906 | METHOD OF PRODUCING REDUCED COENZYME Q10 CRYSTALS WITH EXCELLENT HANDLING PROPERTIES - The present invention provides a method of producing reduced coenzyme Q | 10-27-2011 |
| 20120123171 | Catalytic reduction of lignin acids and substituted aliphatic carboxylic acid compounds - Renewable resources comprising bagasse, corn stover, wood sawdust and switch grass are subject to direct catalytic conversion or bio-fermentation processes producing ethanol and organic by products leaving complex lignin compounds as waste for disposal. Chemical conversion of lignin compounds to aromatic lignin acids followed by reductive hydrogenation to cresol and substituted creosol compounds prepares these natural resources for chemical conversion to a form of gasoline and valued industrial compounds. The process disclosed herein is also applicable to organic carboxylic acid compounds such as natural oils producing valued liquid hydrocarbon fuels. | 05-17-2012 |
| 568652000 | Ether oxygen is ortho to the hydroxy | 2 |
| 20130066116 | METHOD FOR THE DEPOLYMERIZATION OF LIGNOCELLULOSIC BIOMASS - The present invention relates to a method for the depolymerization of lignin or of derivatives thereof, including a step of heating the lignin or the derivatives thereof in the presence of a hydroxide of general formula M(OH)n or of a mixture of M(OH)n hydroxides, where M is a metal of the alkali or alkaline-earth family and n is equal to 1 or 2, and where the mass ratio between said hydroxide or mixture of hydroxides and the lignin or the derivatives thereof is comprised between around 0.5 and around 20. | 03-14-2013 |
| 20130123547 | Simultaneous Hydrolysis Refine Method Of Cellulose Biomass - A method of refining cellulosic biomass, including synchronous hydrolyzation of at least 85 wt % organic polymers, based on the total weight of the cellulosic biomass, in the cellulosic biomass into small molecular organic compounds. The synchronous hydrolyzation is catalytic hydrolyzation for which the catalyst used is a substance represented by L-M-S-H or L-M=S, wherein “M” represents metal, carbon or silicon, “S” represents a heteroatom, “L” represents one or more ligands, and “H” represents hydrogen. | 05-16-2013 |
| 568655000 | Halogen containing | 2 |
| 568656000 | Halogen bonded directly to the benzene ring | 2 |
| 20110124923 | TETRAFLUOROTOLUENE COMPOUND, METHOD FOR PRODUCING SAME AND USE THEREOF - A tetrafluorotoluene compound represented by the formula (1): | 05-26-2011 |
| 20090326280 | Systems and Methods for the Preparation of Alkyl Aryl Ethers - A process for the preparation of alkyl aryl ethers from alcohols and aryl halides, usually as intermediates in organic synthesis. In a method, the mixing aryl halide and an alcohol is mixed with dimethyl sulfoxide, water, and a metal hydroxide to form a mixture and the mixture is heated to reflux. Additional steps may then be performed to provide for purification. | 12-31-2009 |
| 568657000 | Aryl-oxy-alkenyl or aryl-oxy-alkynyl | 1 |
| 20100261936 | PROCESS FOR PRODUCING ALPHA, BETA-UNSATURATED ETHER - A process of producing α,β-unsaturated ethers includes pyrolyzing an acetal represented by Formula (2) below in a gas phase in the presence of a catalyst and a compound having at least one hydrogen atom capable of hydrogen bonding to produce an α,β-unsaturated ether represented by Formula (3) below: | 10-14-2010 |
| 568658000 | Acyclic hydrocarbyl group bonded directly to the benzene ring | 1 |
| 20090012331 | Process for the production of vinyl compound - A process, advantageous in producibility, for the production of a vinyl compound containing very small amounts of ionic impurities and hydrolysable halogens, which is capable of curing by means of heat and/or light and giving a cured product having excellent dielectric characteristics and heat resistance, which process can efficiently remove a generated salt and comprises reacting a non-protonic polar solvent solution of a specific bifunctional phenylene ether oligomer with a vinylbenzyl halide in the presence of an alkoxide of an alkali metal,
| 01-08-2009 |
| 568659000 | Plural rings containing | 4 |
| 20090088592 | AROMATIC VINYL ETHER COMPOUNDS - Aromatic vinyl ether compounds represented by Formula (1) or by Formula (2) | 04-02-2009 |
| 20100210881 | Supported Noble Metal Catalyst - A supported noble metal catalyst comprising palladium salts enveloped by colloids applied to the support is produced by hydrolysing a palladium salt solution by means of a base and applying the colloidal suspension to a support. The catalyst can be used in hydrogenations. | 08-19-2010 |
| 568660000 | Polyoxy | 1 |
| 20100305364 | PROCESS FOR PREPARING DIISOPROPYL((1-(HYDROXYMETHYL)-CYCLOPROPYL)OXY)METHYLPHOSPHONATE - The present invention relates to a new process for preparing diisopropyl {[1-(hydroxymethyl)-cyclopropyl]oxy}methylphosphonate (2), which is a key intermediate for synthesizing an antiviral (particularly, against hepatitis B virus) nucleoside analogue. The present invention also relates to new intermediates, and a process for preparing the antiviral nucleoside analogue from the compound (2) prepared according to the present invention. | 12-02-2010 |
| 568661000 | Halogen containing | 1 |
| 20120149943 | PROCESS FOR THE PREPARATION OF RING COMPOUNDS - In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling; subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures. | 06-14-2012 |
| 568662000 | Polyoxy | 1 |
| 20080214874 | Derivatized polyhydroxystyrenes with a novolak type structure and processes for preparing the same - A process for preparing derivatized poly(4-hydroxystyrene) having a novolak type structure which comprises the steps of (i) supplying a solution of methanol containing 4-hydroxyphenylmethylcarbinol, (ii) subjecting said solution to an acid catalyzed displacement reaction for a sufficient period of time and under suitable conditions of temperature and pressure to convert substantially all of said carbinol to 4-hydroxyphenylmethylcarbinol methyl ether in solution, (iii) polymerizing said ether containing solution in the presence of a suitable acid catalyst for a sufficient period of time and under suitable conditions of temperature and pressure to form a novolak type polymer. New compositions of matter which comprise the derivatized poly(4-hydroxystyrene) prepared in the above manner and which have application in the electronic chemicals market such as in a photoresist composition, and in other areas such as in varnishes, printing inks, epoxy resins, copying paper, tackifiers for rubber, crude oil separators, and the like. | 09-04-2008 |
