| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568672000 | Polyoxy | 79 |
| 20090030241 | Novel Amphiphile Acetals - The invention relates to an amphiphile acetal of formula (1), | 01-29-2009 |
| 20090131725 | PROCESS FOR PRODUCING HYDROLYZATE - In a method for producing a hydrolysate in which an organic compound and water are mixed and a hydrolysis reaction of the organic compound is performed, shear flow of the organic compound and the water at a shear rate U/Dmin of 5.5 sec | 05-21-2009 |
| 20100063328 | HETEROBIFUNCTIONAL POLY(ETHYLENE GLYCOL) DERIVATIVES AND METHODS FOR THEIR PREPARATION - This invention provides a method related to the preparation of derivatives of poly(ethylene glycol). | 03-11-2010 |
| 20100234646 | Method For Producing (Poly) Glyceryl Ether - The present invention relates to a process for producing a (poly)glyceryl ether which includes the step of reacting an alcohol with glycidol under a neutral condition. According to the process of the present invention, the (poly)glyceryl ether having a narrow molecular weight distribution can be produced with a high yield in a simplified manner. | 09-16-2010 |
| 20100234647 | STARTER FEED STREAM ACIDIFICATION IN DMC-CATALYZED PROCESS - The process of the present invention provides for the manufacture of lower molecular weight DMC-catalyzed polyols than is possible using non-acidified continuous addition of starter (CAOS) feeds, by adding excess acid to a starter feed stream over that required for mere neutralization of the basicity of the starter. The benefits of the invention also extend to starters which do not contain basicity. Polyether polyols made by the inventive process may be used to produce improved polyurethane products such as coatings, adhesives, sealants, elastomers, foams and the like. | 09-16-2010 |
| 20150126783 | METHOD FOR PRODUCING REFINED GLYCERIN ALKYL ETHER - Provided is a method for producing refined glycerin alkyl ether at a high recovery rate by removing glycerin from a mixture containing glycerin and glycerin alkyl ether. A method for producing refined glycerin alkyl ether comprising the following steps (1) and (2): step (1): bringing a mixture containing glycerin and glycerin alkyl ether into contact with a cation exchange resin; step (2): bringing the cation exchange resin into contact with a solvent having an SP value of from 20.5 to 34 (MPa) | 05-07-2015 |
| 20150141705 | METHOD FOR PRODUCING MEDIUM-MOLECULAR-WEIGHT POLYALKYLENEOXIDE - A method for producing a medium-molecular weight polyalkylene oxide having a viscosity-average molecular weight of from 100,000 to 2,500,000, including heat-treating a polyalkylene oxide having a viscosity-average molecular weight of 3,000,000 or more at a temperature of from 30° to 70° C. in an aliphatic hydrocarbon solvent having a dissolved oxygen concentration of 0.5 mg/L or more, in the presence of a radical initiator in an amount of from 0.001 to 1 part by mass, based on 100 parts by mass of the polyalkylene oxide, and thereafter adding an antioxidant to a mixture in an amount of from 0.001 to 5 parts by mass, based on 100 parts by mass of the polyalkylene oxide to remove the solvent. According to the method of the present invention, a medium-molecular weight polyalkylene oxide having a viscosity-average molecular weight of from 100,000 to 2,500,000 which has excellent storage stability can be industrially obtained without subjecting to a gamma-ray irradiation treatment. | 05-21-2015 |
| 20160137571 | ALKYL POLY GLYCOL-ETHERS AND THEIR SYNTHESIS - Processes for producing long chain ethers by reacting a long chain secondary alcohol, a long chain alkoxide, or a combination thereof with at least one epoxide. The long chain ether may comprise a long chain ether alcohol, a long chain ether alcoholate, or a combination thereof. The long chain ether alcoholate may be either protonated to provide the long chain ether alcohol or reacted with an alkyl halide to provide a long chain capped ether. Long chain ether compositions are also disclosed herein. | 05-19-2016 |
| 568673000 | Carbon to carbon unsaturation containing | 3 |
| 20130109889 | LUBRICANT BASE OIL FOR HYDROCARBON REFRIGERANT AND LUBRICATING OIL COMPOSITION COMPRISING IT | 05-02-2013 |
| 568674000 | Halogen containing | 1 |
| 20090264684 | FLUOROELASTOMERS - VDF-based curable fluoroelastomers having glass transition temperature lower than −35° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application. | 10-22-2009 |
| 568675000 | Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) | 1 |
| 20160185697 | METHOD FOR PREPARING ISOPRENOL-ALKOXYLATE COMPOSITIONS HAVING A LOW ISOPRENE-CONTENT - The present invention relates to methods for preparing a composition comprising an isoprenol-alkoxylate having an isoprene-content of not more than 1000 ppm. The present invention also relates to compositions prepared or obtainable by such methods. The present invention further relates to the use of peroxides for decreasing the isoprene-content in a composition. | 06-30-2016 |
| 568676000 | Halogen containing | 13 |
| 20120184781 | Methods Of Forming A Tellurium Alkoxide And Methods Of Forming A Mixed Halide-Alkoxide Of Tellurium - A method of forming a tellurium alkoxide includes providing a tellurium halide and a non-tellurium alkoxide in a liquid organic solvent. The liquid organic solvent has less moles of alcohol, if any, than moles of tellurium halide in the liquid organic solvent. The tellurium halide and the non-tellurium alkoxide within the liquid organic solvent are reacted to form a reaction product halide and a tellurium alkoxide. The liquid organic solvent is removed from the reaction product halide and the tellurium alkoxide to leave a liquid and/or solid mixture comprising the reaction product halide and the tellurium alkoxide. The mixture is heated effective to gasify the tellurium alkoxide from the reaction product halide. Other implementations are disclosed, including methods of forming a mixed halide-alkoxide of tellurium. | 07-19-2012 |
| 20150301001 | FULLY AUTOMATED ANALYTICAL METHOD FOR DETERMINATION OF CHLOROETHERS IN WATER AND URINE SAMPLE - A fully automated flow assisted-solid-phase microextraction (FA-SPME) is developed for the determination of chloroethers in aqueous samples. A CTC CombiPAL autosampler coupled with gas chromatography-mass spectrometry (GC-MS) is used to automate the extraction process. In this method, the SPME fiber is exposed to a sample in direct immersion. After exposure, the fiber is desorbed at the injection port of GC-MS. | 10-22-2015 |
| 568677000 | Fluorine | 11 |
| 20090048469 | Iodine-containing fluoropolyether and process for producing the same - An iodine-containing fluoropolyether represented by the following general formula [I]: | 02-19-2009 |
| 20090118550 | PROCESS FOR PREPARING HIGH PURITY MONOCARBOXYLIC PERFLUOROPOLYETHERS - A process for preparing monocarboxylic perfluoropolyethers of formula: A-O-(R | 05-07-2009 |
| 20090171127 | Fluorine-Containing Ether Alcohol and Process For Producing The Same - A novel fluorine-containing ether alcohol having a terminal perfluoromethoxy group represented by the following general formula: | 07-02-2009 |
| 20090247791 | PROCESS FOR THE PREPARATION OF FLUOROMETHYL 2,2,2-TRIFLUORO-1-(TRIFLUOROMETHYL) ETHYL ETHER - The present invention refers to a process for the preparation of fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether (sevoflurane) which includes a step that consists of reacting hexafluoroisopropanol with a formaldehyde equivalent selected among paraformaldehyde or 1,3,5-trioxane, a chlorinating agent selected from the group consisting of oxalyl chloride, phosphorus trichloride, phosphorus pentachloride, phosphorus oxychloride, sulfuryl chloride and thionyl chloride, and a strong acid selected from the group consisting of concentrated or fuming sulfuric acid resulting in the formation of the intermediate sevochlorane which is converted to sevoflurane in a second step which consists of reacting sevochlorane with an alkali metal fluoride, or a linear or branched chain tetra-alkyl quarternary ammonium fluoride in the presence of a sub-stoichiometric quantity of an alkali metal iodide, or a linear or branched alkyl chain tetra-alkyl quarternary ammonium iodide, preferably in a solvent. | 10-01-2009 |
| 20100240930 | Process for the manufacture of polyol perfluoropolyether derivative - A process for the manufacture of a polyol (per)fluoropolyether derivative, comprising: 1. reacting at least one triol having two protected hydroxyl functions and a free hydroxyl group with an activating agent, to yield an activated protected triol; 2. reacting the activated protected triol with a functional (per)fluoropolyether derivative of formula: T | 09-23-2010 |
| 20100280280 | FLUOROALKYLALKOXYLATES - A fluorinated alkylalkoxylate, and a process for its preparation in which at least one fluorinated alcohol is contacted with at least one alkylene epoxide in the presence of a catalyst system comprising an alkali metal borohydride, and an organic quaternary salt. | 11-04-2010 |
| 20100280281 | ALKOXYLATION OF FLUORINATED ALCOHOLS - A fluorinated alkylalkoxylate, and a process for its preparation in which at least one fluorinated alcohol is contacted with at least one alkylene epoxide in the presence of a catalyst system comprising an alkali metal borohydride, and an organic quaternary salt. | 11-04-2010 |
| 20130317257 | PERFLUOROPOLYETHER LUBRICANT AND SYSTEMS COMPRISING SAME - A surface agent includes two end portions and a middle portion disposed between the end portions. The end portions include a terminal section and a midsection. The terminal section includes at least one surface active functional group. The midsection includes at least one perfluoroethyl ether unit. The middle portion includes at least one perfluorobutyl ether unit. | 11-28-2013 |
| 20140275635 | PROCESS FOR ENRICHING THE DIFUNCTIONAL CONTENT OF (PER) FLUOPOLYETHER MIXTURES - The present invention relates to a process for increasing the content of bifunctional species in mixtures of non functional, mono- and bifunctional (per)fluoropolyethers which comprises the adsorption of a (per)fluoropolyether mixture onto an adsorbing stationary phase, a first desorption step with a supercritical fluid only and a second desorption step with the supercritical fluid and a mixture of a polar solvent. | 09-18-2014 |
| 20150148565 | Method of Forming Alkoxylated Fluoroalcohols - A method of forming an alkoxylated fluoroalcohol is accomplished by providing a boron compound having or providing at least one boron-oxygen bond and an iodine source. The boron compound and iodine source are combined with reactants of a fluoroalcohol and an alkylene oxide in the presence of a base. The reactants are allowed to react to form an alkoxylated fluoroalcohol reaction product. | 05-28-2015 |
| 20150329453 | PROCESS FOR THE ALKOXYLATION OF (PER) FLUOROPOLYETHER ALCOHOLS - A convenient process for the manufacture of alkoxylated derivatives of PFPE alcohols is herein provided. The process envisages the use of a boron-based catalyst and an iodine source and is characterised in that a PFPE alkoxide is prepared separately, contacted with a boric acid triester of the same PFPE alcohol and finally submitted to alkoxylation in the presence of an iodine source. The process allows achieving an alkoxylation degree of at least 2 with high yields and under conditions that are convenient on an industrial scale. | 11-19-2015 |
| 568678000 | Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) | 55 |
| 20090187049 | Production of propylene glycol monoalkyl ether - The invention is a process for producing a propylene glycol monoalkyl ether which comprises first reacting propylene oxide and an alcohol in the presence of an alkali or alkaline earth metal alkoxide catalyst to produce an alkoxylation mixture comprising propylene glycol monoalkyl ether; distilling the alkoxylation mixture to produce a first overhead stream comprising propylene oxide and alcohol and a first bottoms stream comprising propylene glycol monoalkyl ether; and then distilling the first bottoms stream to produce purified propylene glycol monoalkyl ether as a second overhead stream. The reaction and/or one or more of the distillation steps occur in the presence of an alkali metal borohydride. The process produces propylene glycol monoalkyl ether with low UV absorbance and reduced carbonyl impurities. | 07-23-2009 |
| 20100069681 | PROCESS FOR PREPARING 3-ALKOXYPROPAN-1-OLS - The present invention relates to a process for preparing 3-alkoxypropan-1-ols of the general formula I | 03-18-2010 |
| 20120330066 | PRODUCTION OF HYDROXY ETHER HYDROCARBONS BY VAPOR PHASE HYDROGENOLYSIS OF CYCLIC ACETALS AND KETALS - A vapor phase hydrogenolysis reaction to convert cyclic acetal compounds and/or cyclic ketal compounds in the presence of hydrogen to their corresponding hydroxy ether hydrocarbon reaction products using a supported noble metal catalyst. The hydrogenolysis reaction can be carried out in the vapor phase and in the absence of a polyhydroxyl hydrocarbon co-solvent. | 12-27-2012 |
| 20120330067 | CATALYSTS FOR THE PRODUCTION OF HYDROXY ETHER HYDROCARBONS BY VAPOR PHASE HYDROGENOLYSIS OF CYCLIC ACETALS AND KETALS - Catalyst compositions of palladium supported on alumina or zirconium oxide supports having low or no silicon dioxide contents and having a specific surface area or modified with alkali, alkaline earth, or phosphine oxide compounds are selective in a vapor phase hydrogenolysis reaction to convert cyclic acetal compounds and/or cyclic ketal compounds in the presence of hydrogen to their corresponding hydroxy ether hydrocarbon reaction products. | 12-27-2012 |
| 20120330068 | NICKEL MODIFIED CATALYST FOR THE PRODUCTION OF HYDROXY ETHER HYDROCARBONS BY VAPOR PHASE HYDROGENOLYSIS OF CYCLIC ACETALS AND KETALS - Catalyst compositions of alumina supports containing palladium and nickel are selective in a vapor phase hydrogenolysis reaction to convert cyclic acetal compounds and/or cyclic ketal compounds in the presence of hydrogen to their corresponding hydroxy ether hydrocarbon reaction products. | 12-27-2012 |
| 20140303404 | NICKEL MODIFIED CATALYST FOR THE PRODUCTION OF HYDROXY ETHER HYDROCARBONS BY VAPOR PHASE HYDROGENOLYSIS OF CYCLIC ACETALS AND KETALS - Catalyst compositions of alumina supports containing palladium and nickel are selective in a vapor phase hydrogenolysis reaction to convert cyclic acetal compounds and/or cyclic ketal compounds in the presence of hydrogen to their corresponding hydroxy ether hydrocarbon reaction products. | 10-09-2014 |
| 20150057468 | Process for producing propylene glycol methyl ether - Propylene glycol methyl ether is produced by feeding a solution of a basic catalyst in methanol to a catalytic distillation column containing a heterogeneous basic catalyst defining a heterogeneous reaction zone, and feeding propylene oxide to the column. The methanol reacts with the propylene oxide according to a dual homogeneous catalytic reaction and heterogeneous catalytic reaction to form propylene glycol methyl ether, which is removed from the column as a bottoms product. Alternatively, methanol can be reacted with propylene oxide in a pre-reactor, to form propylene glycol methyl ether, and, when the temperature in the pre-reactor reaches about 100° C., the reaction products are transferred to the catalytic distillation column for further reaction. | 02-26-2015 |
| 20160031779 | PRODUCTION OF PROPYLENE GLYCOL MONOALKYL ETHER - Processes for producing propylene glycol monoalkyl ether are described herein and include contacting propylene oxide and an alcohol in the presence of an alkali or alkaline earth metal alkoxide catalyst to produce an alkoxylation mixture including propylene glycol monoalkyl ether; distilling the alkoxylation mixture to produce a first overhead stream including propylene oxide and the alcohol and a first bottoms stream including propylene glycol monoalkyl ether; distilling the first bottoms stream to produce a second overhead stream including purified propylene glycol monoalkyl ether and a second bottoms stream including heavier byproducts; further distilling the second bottoms stream to form a resulting bottoms stream including caustic and heavier byproducts; introducing an alkali metal borohydride into at least a portion of the resulting bottoms stream to form an alkali metal borohydride containing stream; and introducing the alkali metal borohydride containing stream into one or more distillations upstream of recovery of the second overhead stream. | 02-04-2016 |
| 568679000 | Polyether | 34 |
| 20090143625 | PROCESS FOR THE PREPARATION OF POLYETHER POLYOLS - A process for the preparation of a polyether polyol containing at most about 15 ppm of sodium and potassium, comprising: (a) reacting an initiator having at least two active hydrogen atoms with at least one alkylene oxide in the presence of a catalyst having an alkali metal hydroxide to form a polyether polyol reaction product; (b) neutralizing the polyether polyol reaction product obtained in step (a) by contacting this reaction product with phosphoric acid and water; and (c) removing the salt crystals from the polyether polyol and recovering the neutralized polyether polyol containing at most about 15 ppm of sodium and potassium, wherein no adsorption agent and no hydrate of a metal salt of the acid are used before, during or after the neutralization. | 06-04-2009 |
| 20090275784 | PROCESS FOR PRODUCING POLYGLYCERYL ETHER DERIVATIVE - The present invention relates to a process for producing polyglyceryl ether derivatives by reacting an alcohol with glycidol in the presence of a simple metal salt of rare earth element as a catalyst which is capable of realizing a highly-selective addition reaction of the alcohol and glycidol, and enhancing a conversion rate of the alcohol. | 11-05-2009 |
| 20100016641 | CONVERSION OF GLYCEROL TO NAPHTHA-RANGE OXYGENATES - The invention provides a method of converting glycerol to oxygenates (i.e. one or more oxygen-containing hydrocarbons) of lower boiling point than glycerol itself The method involves reaction of glycerol with an alcohol under reduced pressure at a reaction temperature in a range of 150 to 300° C. in the presence of an oxygenation (solid acid) catalyst. The reaction product contains volatile oxygenates that may be used as fuels or fuel additives. | 01-21-2010 |
| 20100280282 | PHOSPHATIDYL OLIGOGLYCEROLS - In order to form liposomes with a longer half-life in blood, use is made of defined compounds with the general formula (A) | 11-04-2010 |
| 20100324340 | SHORT CHAIN POLYETHER POLYOLS PREPARED FROM ULTRA-LOW WATER-CONTENT STARTERS VIA DMC CATALYSIS - The present invention provides a process for the polyoxyalkylation of a starter involving establishing oxyalkylation conditions in an oxyalkylation reactor in the presence of a double metal cyanide (DMC) catalyst, continuously introducing into the reactor at least one alkylene oxide and an acidified, ultra-low water content starter, in which the starter contains greater than about 100 ppm and less than or equal to about 500 ppm water, based on the weight of the starter, and recovering an oxyalkylated low molecular weight starter polyether product. The inventive process allows the production of short chain polyether polyols which have hydroxyl numbers of from greater than 250 up to about 500, from hygroscopic initiators, such as glycerin, without DMC catalyst deactivation. | 12-23-2010 |
| 20110092743 | PRODUCTION AND COMPOSITION OF GLYCEROL BASED POLYOLS - The invention provides a method of efficiently producing branched, cyclic glycerol-based polyols with a co-product as anti-biodegrading agent from inexpensive readily available glycerol monomer. The method involves polymerizing glycerol or glycerol with at least another monomer to multiple other monomers in the presence of particular amount of a strong base as the catalyst under a particular distillation environment. The polyol produced by the inventive method is beneficial of reducing scales in Bayer liquid for aluminum production process and improving brightness of coated paper substrates without greening effect. | 04-21-2011 |
| 20110098510 | Method of Preparing Glycerol Alkyl Ethers - A process for glycerol etherification, including a recycle of glycerol and/or mono-ether, to produce glycerol alkyl ethers with low amount of mono-ether by reacting glycerol and olefinic hydrocarbon, and/or the corresponding aldehydes, ketones and alcohols, having 2 to 10 carbon atoms in the presence of homogeneous acid catalyst with hindered formation of olefin oligomers comprising of two essential steps: reaction step ( | 04-28-2011 |
| 20110105802 | Continuous Loop Flow Process For Polyether Polyol Production - The present disclosure relates, according to some embodiments, to compositions, apparatus, methods, and systems that may be used to produce polyols, for example, polyether polyols with a narrow range of molecular weights, with little if any unsaturated byproducts, in a sustained and/or continuous reaction, with efficient heat transfer, and/or at high production rates. For example, in some embodiments, teachings of the disclosure may be used to produce polyether polyols in a continuous loop flow process. A continuous loop flow process may be practiced such that heat is effectively transferred and/or product properties (e.g., range of molecular weights) are controllable. For example, a continuous loop flow process may use one or more continuous flow loops comprising a heat exchanger, a means to move material around each loop, inlets for catalyst, monomer, initiator or starter, and an outlet for polyol product. | 05-05-2011 |
| 20110160492 | Method of Producing Diethylene-Glycol Tert-Butyl Ether Using Isobutylene and Diethylene Glycol - Usually an analysis of fuel displacement accident is required before operating a reactor. In the present invention, fuel displacement accident is analyzed by linearly combining calculation results of single displacement layouts and a calculation result of a default placement layout. In this way, a number of displacement combinations to be analyzed can be reduced. And, thus, time for the analysis is saved and safety of the reactor core can be affirmed. | 06-30-2011 |
| 20110190545 | PROCESS OF PRODUCING POLYGLYCEROL FROM CRUDE GLYCEROL - Accordingly, the present invention provides a process for preparing polyglycerol from crude glycerol, wherein the crude glycerol having a glycerol content from about 60 to about 90%, soap content from about 10 to about 15% and methanol content from about 5 to about 20%, the process includes the steps of (a) heating the crude glycerol that contains soap to an elevated temperature for a certain reaction time, (b) acidifying the crude polyglycerol with mineral acid at a specific temperature and (c) centrifuging the acidified crude product obtained from step (b) at specific temperature for a certain duration of time. | 08-04-2011 |
| 20110207969 | PROCESS FOR MAKING POLYOL ETHERS - The present invention generally relates to a process for making polyol ethers by reacting a polyol and a carbonyl compound together in the presence of hydrogen gas and a palladium hydrogenation catalyst on an acidic mesoporous carbon support. | 08-25-2011 |
| 20110306803 | SEPARATION OF GLYCOL MONO-TERTIARY-BUTYL ETHER AND GLYCOL DI-TERTIARY-BUTYL ETHER - A method of separating glycol mono-tertiary-butyl ether and glycol di-tertiary-butyl ether by an extraction process using hydrophilic and lipophilic extracting agents is disclosed. The separation method includes the step of separating a mixture including glycol mono-tertiary-butyl ether of the following Chemical formula 1 and glycol di-tertiary-butyl ether of the following Chemical formula 2 with a hydrophilic extracting agent and a lipophilic extracting agent, | 12-15-2011 |
| 20120029246 | ALKOXYLATION PROCESSES AND CATALYSTS THEREFOR - A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed. | 02-02-2012 |
| 20120078019 | METHOD FOR PRODUCING MONOHYDROXYPOLYALKYLENE OXIDES - The present invention relates to a process for the preparation of monohydroxypolyalkylene oxides (MPAO) which are substantially free of diols, comprising the reaction of at least one monoalcohol as a starter with at least one alkylene oxide in the presence of at least one basic catalyst, the catalyst being used as a solution in water or alcohol or in solvent mixtures which comprise water and/or alcohol. | 03-29-2012 |
| 20120172631 | PHOSPHATIDYL OLIGOGLYCEROLS - In order to form liposomes with a longer half-life in blood, use is made of defined compounds with the general formula (A) | 07-05-2012 |
| 20120323044 | PRODUCTION AND SEPARATION OF GLYCEROL-RELATED PRODUCTS USING VARIOUS FEED STOCKS - Disclosed are processes for producing glycerol-related products. One process for producing glycerol-related products comprises introducing glycerol and an alkylation reagent to a substantially oxygen free environment. Another process for producing glycerol-related products comprises introducing a glycerol and tetramethylammonium hydroxide to a substantially oxygen free environment. | 12-20-2012 |
| 20130023700 | PROCESS FOR A CONTINUOUS PRODUCTION OF POLYETHEROLS - A process for a continuous production of a polyetherol first involves reacting an alcohol with a starter or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol. | 01-24-2013 |
| 20130046116 | INTEGRATED COPOLYETHER GLYCOL MANUFACTURING PROCESS - The present invention relates to an improved, fully-integrated continuous process of enhanced process operability for manufacturing copolyether glycols having enhanced physical properties by polymerization of a reaction mixture comprising tetrahydrofuran and at least one alkylene oxide in the presence of an acid catalyst and at least one compound containing reactive hydrogen atoms. The copolyether glycols manufactured by the present process have enhanced physical properties of increased alkylene oxide incorporation, average molecular weight and polydispersity, as well as reduced crystallinity, color, oligomeric cyclic ether content, and linear oligomer having an average molecular weight of up to about 400 dalton content. | 02-21-2013 |
| 20130204047 | METHOD FOR PRODUCING POLYTHER POLYOLS - The present invention relates to is coupling process for the preparation of polyether polyols starting from highly functional starter compounds that are solid or highly viscous under reaction conditions and monofunctional starter compounds that are liquid under reaction conditions with Zerewitinoff-active hydrogen atoms. | 08-08-2013 |
| 20130274526 | PROCESS FOR PREPARING POLYETHER POLYOLS - The present invention relates to a process for preparing polyetherols by catalytic ring-opening polymerization, wherein at least one nitrogen-containing cyclic precatalyst compound is used. | 10-17-2013 |
| 20140107380 | METHOD FOR PRODUCING BIODERIVED DIPROPYLENE AND TRIPROPYLENE GLYCOLS WITHOUT PROPYLENE OXIDE - A method is provided for producing bioderived dipropylene and tripropylene glycols without using propylene oxide. The method utilizes a bioderived (mono)propylene glycol as a feed, and in one embodiment performs an acid-catalyzed condensation process to convert the bioderived propylene glycol to products including at least dipropylene glycol and preferably including tripropylene glycol as well. Wholly biobased dipropylene glycol and tripropylene glycol products and derivative products made therefrom are described, with compositions of matter including the wholly biobased dipropylene glycol and tripropylene glycol or a derivative thereof and describing uses of the various wholly biobased products or of the compositions including the wholly biobased products. Biobased polypropylene glycols may be made in the same manner. | 04-17-2014 |
| 20140213829 | METHOD FOR PRODUCING METHOXYPOLYETHYLENE GLYCOLS - A method for producing methoxypolyethylene glycols includes the following steps: (1) after the reactor is washed by water, nitrogen is filled in the reactor to elevate the pressure and then the reactor is vacuumized to completely remove water and reduce the oxygen content in the reactor; (2) nitrogen is filled in the rector and pressure is elevated, and then methanol and sodium methoxide as the catalyst in methanol is added into the reactor, and then warming up; (3) ethylene oxide is added into the reactor at 800˜1200 kg/h to process the pre-reaction; (4) ethylene oxide is added into the reactor at 8000˜12000 kg/h to process the reaction after methanol and ethylene oxide in the reactor are completely reacted; (5) the pressure of reaction product is reduced and pH of reaction product is adjusted to 5˜7 after the reaction is finished, and then the reaction product is transferred to the tank yard. | 07-31-2014 |
| 20140221696 | POLYGLYCEROL BASED POLYOLS AND POLYURETHANES AND METHODS FOR PRODUCING POLYOLS AND POLYURETHANES - A new class of polyols derived from renewable resources, including polyglycerol and vegetable oils, the use of such polyols in polyurethane foams and cast resins, and methods for making the polyols and polyurethanes are provided. | 08-07-2014 |
| 20140243559 | PROCESS FOR PREPARING POLYETHER POLYOLS - The present invention relates to a process for preparing polyether polyols by base-catalyzed addition of alkylene oxides (epoxides) onto starter compounds which are solid at room temperature and have Zerevitinov-active hydrogen atoms, a particular feature of which is that visually clear and/or homogeneous products are obtained even in the absence of solvents. | 08-28-2014 |
| 20140243560 | PROCESS FOR PREPARING POLYETHER POLYOLS - The present invention relates to a process for solvent-free preparation of polyether polyols with blockwise polyether chain structure, based on starter compounds solid at room temperature. | 08-28-2014 |
| 20140303405 | PRODUCT RECOVERY PROCESS IN THE FILTRATION OF POLYETHER POLYOLS - An improved method for recovering a purified polyether polyol comprising the steps of providing an aqueous solution of a polyether polyol containing an alkali metal catalyst residual formed from a transesterification process, contacting the aqueous solution with a stoichiometric excess of magnesium sulfate to form a second aqueous solution, removing water from said second aqueous solution at a temperature above the melt temperature of said polyether polyol to produce a dehydrated slurry containing a molten polyether polyol phase essentially free of residual alkali metal and a precipitated solid phase comprising sulfate and/or sulfite salts of the alkali metal catalyst, magnesium hydroxide, and excess magnesium sulfate and/or sulfide, passing the dehydrated slurry of through a filtration system comprising a filtration press to separate the molten polyether polyol phase from the precipitated solid phase, wherein the filtration press is treated with a filter aid that is essentially free of transition metal oxide content, separating the molten polyether polyol phase substantially free of water, residual alkali metal catalyst and transition metal contaminants from the precipitated solid phase and recovering polyether polyol from the separated polyether polyol phase. | 10-09-2014 |
| 20140323772 | POLYETHER GLYCOL MANUFACTURING PROCESS - The present invention relates to an improved process for manufacturing polyether and copolyether glycols by polymerization of a reaction mixture comprising at least one tetrahydrofuran or at least one tetrahydrofuran in the presence of a particular perfluorosulfonic acid resin catalyst comprising a copolymer of tetrafluoroethylene (TFE) or chlorotrifluoroethylene (CTFE) and a monomer of the formula CF | 10-30-2014 |
| 20150094497 | REACTION SYSTEM AND PROCESS FOR PREPARING POLYMETHOXY DIMETHYL ETHER - The invention relates to a reaction system and process for continuously preparing polymethoxy dimethyl ether (DMM | 04-02-2015 |
| 20150112099 | PREPARATION OF AN ETHER COMPOUND - A process for the preparation of an ether compound is disclose, wherein the ether compound is prepared via a reaction from at least an alcohol (I) and an alcohol (II), optionally using a catalyst X, wherein alcohol (I) and alcohol (II) are forming a biphasic liquid system when mixed together; comprising at least the following steps: a) Producing an alcohol (I)/alcohol (II) emulsion by using as stabilizing species amphiphilic solid particles of nanometric dimension; optionally comprising a catalyst X; b) Proceeding to the reaction of the ether compound by setting temperature, and c) Isolating the ether compound. | 04-23-2015 |
| 20150133697 | METHOD FOR PRODUCING GLYCOLS FROM OXIRANE COMPOUND - There is provided a method for producing dipropylene glycol (DPG) and/or tripropylene glycol (TPG) including: (A) reacting a raw material liquid including propylene oxide and water to obtain a reaction liquid including unreacted water, propylene glycol (PG), DPG and/or TPG, and an alcohol compound excluding PG, DPG, and TPG; (B) separating, from the reaction liquid, a first liquid containing water and the alcohol compound and a second liquid containing the PG, DPG and/or TPG and optionally the alcohol compound; (C) removing a part of the alcohol compound from the first liquid to obtain a third liquid containing water and optionally a part of the alcohol compound; (D) separating, from the second liquid, a fourth liquid containing the PG and optionally the alcohol compound, and a fifth liquid containing the DPG and/or TPG and optionally the alcohol compound; and (E) recycling a part of the third liquid to step (A). | 05-14-2015 |
| 20150329454 | POLYETHER DIOL AND METHOD FOR PRODUCING THE SAME - A method for producing a polyether diol includes the step of subjecting a compound represented by the following general formula (1) to hydrogenation reduction in the presence of a hydrogenation catalyst to provide a specific polyether diol. | 11-19-2015 |
| 20150353457 | Method for the Production of Hyperbranched Polyglycerol - A process for producing hyperbranched, dendritic polyglycerol from glycerol comprising the steps of adding in a vessel glycerol and a CaO-based catalyst, flushing an inert gas to the resulting mixture and hermetically closing the reaction vessel, allowing pressure to build up from 1 to 10 bar above atmospheric, and heating the reaction mixture at a reaction temperature of at least 100° C. and below its boiling point. The process further comprising the steps of maintaining the reaction conditions until at least 40 wt. % of glycerol is polycondensed and converted into hyperbranched polyglycerol, with concomitant water formation, and separating the dendritic polyglycerol from other components in the mixture. The calcium based catalyst is nanostructured calcium oxide in the form of a powder of mean particle size smaller than 100 nm measured according to ASTM D4464. | 12-10-2015 |
| 20160023979 | PROCESS FOR THE ETHERIFICATION OF A POLYOL - The present invention relates to a process for the production of polyol alkyl ethers by etherification of a diol or triol having 2-3 carbon atoms with a hydrocarbon having 2-10 carbon atoms selected from the group consisting of olefms, ketones and alcohols as alkylation agent in the presence of an etherification catalyst, wherein said process is performed in a tubular loop reactor comprising a polyol feed inlet, at least one alkylation agent feed inlet and a product outlet. | 01-28-2016 |
| 20170233320 | PROCESS FOR CLEANING CONTAMINATED FLUID | 08-17-2017 |
| 568680000 | Polyhydroxy | 13 |
| 20080300429 | Polyglycerol Monoether and Process for Producing the Same - A polyglycerol monoether is represented by following General Formula (1): | 12-04-2008 |
| 20090177016 | CATALYST AND PROCESS USING THE CATALYST - A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1 m | 07-09-2009 |
| 20100240931 | PROCESS FOR PRODUCTION OF DITRIMETHYLOLPROPANE - The present invention provides a method for producing ditrimethylolpropane including reacting n-butyraldehyde with formaldehyde in the presence of a base catalyst to thereby produce trimethylolpropane and ditrimethylolpropane, wherein the method includes (I) a step of reacting n-butyraldehyde with formaldehyde (1) in the presence of a base catalyst (1), to thereby produce a reaction mixture containing trimethylolpropane, ditrimethylolpropane, and 2-ethyl-2-propenal; (II) a step of recovering 2-ethyl-2-propenal through distillation of the produced reaction mixture; and (III) a step of adding, to a distillation residue obtained through recovery of 2-ethyl-2-propenal, the recovered 2-ethyl-2-propenal and formaldehyde (2), and optionally a base catalyst (2), to thereby allow reaction for production of ditrimethylolpropane to proceed, wherein the amounts of formaldehyde (I) and the base catalyst (1) supplied in step I and formaldehyde (2) and the base catalyst (2) supplied in step II are controlled to specific amounts, to thereby effectively produce ditrimethylolpropane. According to the present invention, the yield of di-TMP is considerably increased, and the amount of bis-TMP by-produced can be considerably reduced with respect to the amount of di-TMP (i.e., a product of interest) produced; that is, di-TMP can be effectively produced in an industrially advantageous manner. | 09-23-2010 |
| 20110009676 | PROCESS FOR THE PREPARATION OF 1-ALKYL GLYCEROL ETHERS - A process for the preparation of a 1-alkyl glycerol ether of the formula (I) | 01-13-2011 |
| 20120101313 | GLYCERYL ETHER COMPOUNDS AND THEIR USE - Glyceryl ether compounds prepared by the reaction of glycerol and olefin epoxides are disclosed. The compounds are renewable biomass-based surfactants useful as detergents and emulsifiers in formulations for cleaning, laundry, personal care, cosmetics, and industrial uses. | 04-26-2012 |
| 20120330069 | PRODUCTION OF HYDROXY ETHER HYDROCARBONS BY LIQUID PHASE HYDROGENOLYSIS OF CYCLIC ACETALS OR CYCLIC KETALS - A liquid phase hydrogenolysis of acetal compounds such as cyclic acetals and cyclic ketals are fed to a reaction zone and reacted in the presence of a noble metal catalyst supported on a carbon or silica support to make hydroxy ether mono-hydrocarbons in high selectivity, without the necessity to use acidic co-catalysts such as phosphorus containing acids or stabilizers such as hydroquinone. | 12-27-2012 |
| 20130131391 | Method for obtaining ditrimethylolpropane and trimethylolpropane-enriched product streams from the side-streams in trimethylolpropane production - The present invention relates to a process for obtaining ditrimethylolpropane and trimethylolpropane-enriched product streams from the high-boiling fractions and residues which are obtained in the distillative purification of trimethylolpropane, wherein an aqueous solution of these fractions and residues is catalytically hydrogenated in the presence of an acidic compound and, after removing solids, contacted both with basic and with acidic ion exchangers. A trimethylolpropane-enriched product stream can be distilled out of the aqueous eluate obtained, leaving ditrimethylolpropane as the distillation residue. | 05-23-2013 |
| 20130184497 | METHOD FOR PRODUCING DITRIMETHYLOLPROPANE - The present invention provides a method for producing ditrimethylolpropane which is characterized by the following (1) and (2): (1) a distillation still residue separated from purified trimethylolpropane is subjected to re-distillation under specific conditions to obtain a ditrimethylolpropane-containing solution having given contents of bis-TMP and tri-TMP; and (2) when subjecting the ditrimethylolpropane-containing solution to crystallization with an organic solvent, the crystallization is initiated under pressure at a temperature exceeding a boiling point of the organic solvent as measured under normal pressures, and the resulting crystallization product solution is cooled at a temperature drop rate of 2° C./min or less. According to the above method, it is possible to produce a high-purity ditrimethylolpropane from a distillation still residue obtained upon production of trimethylolpropane in a simple, industrially useful manner. | 07-18-2013 |
| 20140018579 | PROCESS FOR PREPARING A POLYOL ETHER - The present invention relates to a process for preparing a polyol ether of formula (I), comprising a step of reductive alkylation involving a compound of general formula (II) and a compound of general formula (III): | 01-16-2014 |
| 20140135536 | PROCESS FOR PRODUCTION OF DITRIMETHYLOLPROPANE - Provided is a method for producing di-TMP by reacting n-butyl aldehyde (NBD), formaldehyde and a base, said method including a first step of reacting the NBD, formaldehyde (1) and a base (I) to obtain a reaction mixture solution containing trimethylolpropane (TMP), di-TMP and 2-ethyl-2-propenal (ECR); a second step of distilling the reaction mixture solution to recover the ECR therefrom; and a third step of sequentially adding the ECR recovered by distillation, and adding at least one of a base (II) and formaldehyde (2), to the reaction mixture solution from which the ECR has been recovered by distillation, and thereby allowing a reaction for production of the di-TMP to proceed gradually, in which TMP is added in any one of the first to third steps or in plural steps of the first to third steps. | 05-15-2014 |
| 20140378714 | METHOD FOR PRODUCING GLYCOLS FROM OXIRANE COMPOUNDS - The objective of the present invention is to provide a method for the highly selective production of dipropylene glycol containing 1,1′-oxybis-2-propanol in a proportion of 0.10 to 0.70 and/or tripropylene glycol containing 1,1′[(1-methyl-1,2-ethanediyl) bis (oxy)]bis-2-propanol in a proportion of 0.10 to 0.70. The present invention is a method for producing dipropylene glycol containing 1,1′-oxybis-2-propanol in a proportion of 0.10 to 0.70 and/or tripropylene glycol containing 1,1′[(1-methyl-1,2-ethanediyl) bis (oxy)]bis-2-propanol in a proportion of 0.10 to 0.70, the method comprising a reaction step of making a reactant comprising propylene oxide and water react in the presence of a catalyst, wherein the catalyst comprises at least one element selected from the group consisting of vanadium, niobium, and tantalum, and the Hammett acidity function (H) of the catalyst satisfies H≦9.3. | 12-25-2014 |
| 20150080613 | METHOD FOR PREPARING GLYCEROL ETHER AND GLYCOL ETHER - The present invention concerns a method for preparing glycerol ether or glycol ether comprising the reaction of a compound of formula (II) with a compound of formula (III) in the presence of a heterogeneous acid catalyst of formulas (II) and (III). | 03-19-2015 |
| 20160083321 | POLYOL-ETHER COMPOUND AND METHOD FOR PRODUCING THE SAME - A method for producing a polyol-ether compound, wherein a compound represented by the following formula (1) is subjected to hydrogenation reduction in the presence of a hydrogenation catalyst to obtain a polyol-ether compound having a skeleton represented by the following formula (2): | 03-24-2016 |
