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Unsaturation in acid moiety

Subclass of:

560 - Organic compounds -- part of the class 532-570 series

560000000 - ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1)

560001000 - Carboxylic acid esters

560129000 - Acyclic acid moiety

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
560205000 Unsaturation in acid moiety 88
20100152482PROCESS FOR REDISSOCIATING MICHAEL ADDUCTS WHICH ARE PRESENT IN A LIQUID F AND HAVE BEEN FORMED IN THE PREPARATION OF ACRYLIC ACID OR ESTERS THEREOF - A process for redissociating Michael adducts which are present in a liquid F with a proportion by weight of ≧10% by weight and have been formed in the preparation of acrylic acid or esters thereof in a redissociating apparatus which comprises a pump P, a separating column K with separating internals and a circulation heat exchanger UW, wherein, for the purpose of supplying the cleavage energy, the pump P sucks in bottoms liquid from the bottom space of the separating column K and, via the circulation heat exchanger UW, continually recycles it into the bottom space above the level of the bottoms liquid, and wherein the pump P is a radial circulation pump with an open impeller.06-17-2010
20130085291METHOD OF PREPARING ALKYL (METH)ACRYLATE - The present invention relates to a method of preparing an alkyl (meth)acrylate, and more specifically to a method of preparing an alkyl (meth)acrylate which comprises the steps of: carrying out an esterification reaction with reactants comprising an alkanol and (meth)acrylic acid in the presence of an organic acid catalyst with a conversion rate of about 70% or more; supplying reaction products of the esterification reaction to a distillation tower equipped with a reboiler at the lower end to purify them; recovering a upper discharge comprising an alkyl (meth)acrylate and water at the upper part of the distillation tower and recovering a lower discharge comprising high boiling materials and water at the lower part of the distillation tower; separating the lower discharge of the distillation tower into a water layer and an organic layer; and recirculating the water layer separated from the lower discharge so as to be used in the esterification reaction, wherein each of the steps occurs continuously and the lower discharge of the distillation tower includes water in an amount of about 2-25% by weight with respect to the total weight of the lower discharge.04-04-2013
20120178961BIO-DERIVED OLEFIN SYNTHESIS - Disclosed is a method for the combined synthesis of at least two vinylic monomers, at least one of which being an acrylic compound, comprising subjecting a monoconjugated alkene-1-carboxylic compound to reaction with a C07-12-2012
20090221844Guanidine-substituted resin for transesterification - A polymeric resin comprising guanidine groups having at least one C09-03-2009
20090124825Method of (meth) acrylate production - A method of methacrylate production includes the steps of providing methacrylate gas mixture; absorbing said gas mixture by water to form a solution mixture; introducing said solution mixture into a distillation column, separating impure methacrylate from said solution mixture in said distillation column that solution of said impure methacrylate is collected at said stripping section of said distillation column; and removing acetic acid from said impure methacrylate to produce methacrylate. It effectively enhances the separation capacity of the distillation column, lowers the whole column pressure drop and operation temperature, avoids the polymerization tendency of the methacrylate under high temperature, to make the water content of the bottom discharging decreases to 0.6%, acetic acid content reduces to below 2%, methyl acrylic content of the top column water phase decreases to 0.5%, thereby reduces the methacrylate products unit consumption and improves the product quality.05-14-2009
20110015430CATALYSTS AND PROCESSES FOR THE FORMATION OF TERMINAL OLEFINS BY ETHENOLYSIS - The present invention relates generally to catalysts and processes for the formation of terminal olefin(s) from internal olefin(s) via ethenolysis reactions. The ethenolysis reactions may proceed with high conversion, high turnover, and/or high selectivity.01-20-2011
20130066104METHOD AND PLANT FOR PURIFYING UNSATURATED COMPOUNDS - Process for purifying unsaturated compounds, and a plant for performing the process. Unsaturated compound obtained by the process.03-14-2013
20120035389METHOD FOR PURIFYING THE AZEOTROPIC FRACTION GENERATED DURING THE SYNTHESIS OF N,N-DIMETHYL AMINOETHYL ACRYLATE - The invention relates to a method for producing N,N-dimethylaminoethyl acrylate by the transesterification reaction of an alykl acrylate by N02-09-2012
20090209782PRODUCTION METHOD OF METHYL METHACRYLATE - A method of producing methyl methacrylate comprising the following steps: 08-20-2009
20090023947PROCESS FOR PREPARING TERTIARY ALKYL ESTERS OF (METH) ACRYLIC ACID HAVING AT LEAST 4 CARBON ATOMS IN THE ALKYL RADICAL - A process for preparing tertiary alkyl esters of (meth)acrylic acid having at least 4 carbon atoms in the alkyl radical, comprising the steps of: 01-22-2009
20110060158Preparation Method for (Meth)acrylate - The present invention provides a method for preparing (meth)acrylate by esterification reaction of reactants containing (meth)acrylic acid and alcohol in the presence of a catalyst, the preparation method for (meth)acrylate is characterized in that a hydrazine compound or derivative thereof is put into an esterification reactor; and (meth)acrylate prepared by the same. The present invention effectively prevents impurities generated by aldehyde that is contained in the raw material (meth)acrylic acid from remaining in a production apparatus and the catalyst, so that the process for producing (meth)acrylate proceeds smoothly.03-10-2011
20090105499LIPID DERIVATIVES - The present invention relates to lipid compounds of the general formula (I): wherein—n=0-2, —R04-23-2009
20110054210Process for Preparing Unsaturated Carboxylic Esters - The invention provides a process for preparing unsaturated carboxylic esters by means of reaction of alkenes having 2 to 6 carbon atoms with alkanecarboxylic acids having 1 to 6 carbon atoms in the presence of an oxygenous gas and in the presence of a heterogeneous noble metal catalyst by means of a continuous homogeneous gas phase process in a reactor, wherein a gaseous phase (cycle gas) is circulated, and the cycle gas is laden with alkanecarboxylic acid in an acid saturator before entry into the reactor, characterized in that, in a presaturator connected upstream of the acid saturator, the cycle gas is laden with a portion of the amount of alkanecarboxylic acid used for saturation, then it is transferred to the acid saturator and laden there with the remaining amount of alkanecarboxylic acid.03-03-2011
20110071311PRODUCTION OF ETHYLENICALLY UNSATURATED ACIDS OR ESTERS THEREOF - A production process for the manufacture of ethylenically unsaturated acids or esters thereof is described. The process includes the steps of reaction of an alkanoic acid, or ester of an alkanoic acid, of the formula R03-24-2011
20100029979PROCESS FOR PREPARING (METH)ACRYLIC ACID - The present invention relates to a process for preparing (meth)acrylic acid, characterized in that a cyclic ester is converted to (meth)acrylic acid in the presence of a catalyst. The (meth)acrylic acid prepared can in particular be converted to (meth)acrylates.02-04-2010
20110137072METHOD FOR PRODUCING (METH)ACRYLIC ANHYDRIDE, METHOD FOR STORING (METH)ACRYLIC ANHYDRIDE, AND METHOD FOR PRODUCING (METH)ACRYLATE - It is an object of the present invention to provide a method for producing (meth)acrylic anhydride that provides high yield and high efficiency and can suppress side reactions, in a method for reacting (meth)acrylic acid with a fatty acid anhydride to produce (meth)acrylic anhydride. The method for producing (meth)acrylic anhydride according to the present invention is a method for producing (meth)acrylic anhydride, including reacting a fatty acid anhydride with (meth)acrylic acid to produce (meth)acrylic anhydride, while extracting a fatty acid produced as a by-product, wherein the reaction is performed, while adjustment is performed so that a molar ratio of the (meth)acrylic acid to the (meth)acrylic anhydride in a reaction liquid is 0.3 or more.06-09-2011
20120209023MODIFIED LAYERED DOUBLE HYDROXIDE (LDH) AND A PROCESS FOR PREPARATION THEREOF FOR C-C BOND FORMING REACTIONS - The present invention relates to a covalently organo-modified LDH (LDH/APTES) was found to be an efficient and reusable heterogeneous catalyst for C-C bond forming reactions (i.e. Aldol condensation, Knoevenagel condensation, Henry reaction, Michael addition). More particularly, this catalyst shows consistent activity for several cycles in C-C bond forming reaction. These catalysts were successfully characterized by XRD, FT-IR, 08-16-2012
20110105784Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products - Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared cumulatively from corresponding alkanes utilizing using a multi-staged catalyst system and a multi-stage process which comprises steam cracking of alkanes to corresponding alkenes at flame temperatures and at short contact times in combination with one or more oxidation catalysts for catalytically converting the corresponding alkenes to further corresponding oxygenated products using short contact time reactor conditions.05-05-2011
20120253062METHOD FOR PRODUCING ALKYL 5-METHYL-5-HEXENOATE - A decarboxylation reaction of a (3-methyl-3-butenyl)malonic acid dialkyl ester, carried out by heating in the presence of water and a base, produces an alkyl 5-methyl-5-hexenoate. The decarboxylation reaction produces the alkyl 5-methyl-5-hexenoate inexpensively and effectively. The base can optionally be a tertiary amine compound or a heterocyclic amine compound. Producing the alkyl 5-methyl-5-hexenoate can optionally further include removing an alcohol.10-04-2012
20100286441Vinyl Ester production from Acetylene and Carboxylic Acid utilizing heterogeneous catalyst - A process for the selective production of vinyl ester by the reaction of a carboxylic acid with acetylene under heterogeneous catalytic conditions is disclosed and claimed. In a preferred embodiment of this invention, reaction of benzoic acid and acetylene in the presence of supported platinum catalyst at a temperature of from about 100 to 180° C. results in quantitative yields of vinyl benzoate.11-11-2010
20100286440Vinyl Ester production from Acetylene and Carboxylic Acid utilizing homogeneous catalyst - A process for the selective production of vinyl ester by the reaction of a carboxylic acid with acetylene with a homogeneous catalyst is disclosed and claimed. In a preferred embodiment of this invention, reaction of benzoic acid and acetylene in the presence of Group VIII metal complex catalyst at a temperature of about 50 to 180° C. results in quantitative yields of vinyl benzoate.11-11-2010
560206000 Preparing esters by carbonylation 3
20080281122Preparation of palladium-gold catalysts - A method for preparing supported palladium-gold catalysts is disclosed. The method comprises increasing the porosity of a titanium dioxide support, impregnating the support with a palladium salt, a gold salt, and an optional alkali metal or ammonium compound, and reducing the calcined support. The resultant supported palladium-gold catalysts have increased activity in the acetoxylation.11-13-2008
20120101298CARBONYLATION PROCESS - A process for the production of acetic acid and/or methyl acetate by carbonylating methanol and/or reactive derivatives thereof with carbon monoxide in the presence of a catalyst which is a mordenite which has been treated with an aqueous basic solution containing at least one of aluminate ions and gallate ions and has a silica:X04-26-2012
560207000 Group VIII noble metal catalyst utilized 1
20090216041Catalyst 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·hr08-27-2009
560208000 Formation of carboxyl group by oxidation 4
20100249448SUPPORTED COMPOSITE PARTICLE MATERIAL, PRODUCTION PROCESS OF SAME AND PROCESS FOR PRODUCING COMPOUNDS USING SUPPORTED COMPOSITE PARTICLE MATERIAL AS CATALYST FOR CHEMICAL SYNTHESIS - A supported composite particle material comprises: a composite particle formed of an oxidized nickel and X (wherein X represents at least one of elements selected from the group consisting of nickel, palladium, platinum, ruthenium, gold, silver and copper); and a support on which the composite particle is supported, the supported composite particle material having a supported layer in which the composite particle is localized.09-30-2010
20100197956Vam Shell Catalyst, Method For Its Production And Use Thereof - A shell catalyst for the production of vinyl acetate monomer (VAM), comprising a porous catalyst support based on a natural sheet silicate, in particular based on an acid-treated calcined bentonite, said catalyst support being loaded with Pd and Au and being designed as a shaped body. In order to provide a shell catalyst for the production of VAM, which shell catalyst is characterized by a relatively high VAM selectivity and also a high activity, it is proposed that the catalyst support has a surface area of less than 130 m08-05-2010
20100022796METHOD FOR PRODUCING CATALYSTS AND THEIR USE FOR THE GAS PHASE OXIDATION OF OLEFINS - Especially physically stable metal oxide catalyst supports are prepared by suspending a metal oxide in a continuous phase, activating by fine dispersion, coagulation to a viscoelastic mass, shaping, drying, and calcining. The catalyst support thus prepared may be treated with catalytic agents to produce supported catalysts for olefin oxidation.01-28-2010
20130172599SILICA-BASED MATERIAL AND PROCESS FOR PRODUCING THE SAME, NOBLE METAL SUPPORTED MATERIAL AND PROCESS FOR PRODUCING CARBOXYLIC ACIDS BY USING THE SAME AS CATALYST - A silica-based material comprising: 07-04-2013
560209000 Preparing esters from alkylene oxides 2
20110124906METHOD FOR PRODUCING HYDROXYALKYL (METH)ACRYLATE - Disclosed is a method for producing a hydroxyalkyl (meth)acrylate having high production efficiency and placing little burden on a production system. The method for producing a hydroxyalkyl (meth)acrylate comprises a reaction step of reacting (meth)acrylic acid with an alkylene oxide in a reactor while stirring a liquid containing (meth)acrylic acid and the alkylene oxide with a stirrer to obtain a reaction liquid containing a hydroxyalkyl (meth)acrylate, and thereafter a deaeration step of reducing a pressure in the reactor while stirring the reaction liquid with the stirrer to vaporize and remove an unreacted alkylene oxide in the reaction liquid, a number of stirring revolutions of the stirrer in the deaeration step being reduced to 30 to 85% of a number of stirring revolutions of the stirrer in the reaction step.05-26-2011
20110213175SYNTHESIS OF FLUOROALCOHOL-SUBSTITUTED (METH)ACRYLATE ESTERS AND POLYMERS DERIVED THEREFROM - This invention relates to processes for preparing fluoroalcohol-substituted (meth)acrylate esters. This invention also relates to block copolymers incorporating repeat units derived from fluoroalcohol-substituted (meth)acrylate esters, and photoresists derived therefrom.09-01-2011
560210000 Preparing esters from aldehydes 1
20130085292Processes for Producing Acrylic Acids and Acrylates - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of reacting an alkanoic acid and an alkylenating agent under conditions effective to produce a crude acrylate product. A molar ratio of alkylenating agent to alkanoic acid is maintained at a level of at least 1.04-04-2013
560211000 Formation of ethylenic unsaturation 7
20130158287NITRIDED MIXED OXIDE CATALYST SYSTEM AND A PROCESS FOR THE PRODUCTION OF ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS OR ESTERS - The invention relates to a method of producing an ethylenically unsaturated carboxylic acid or ester, preferably an α, β ethylenically unsaturated carboxylic acid or ester. The method includes contacting formaldehyde or a suitable source thereof with a carboxylic acid or ester in the presence of a catalyst and optionally in the presence of an alcohol. The catalyst comprises a nitrided metal oxide having at least two types of metal cations, M06-20-2013
20130178647Mixed Oxide Catalyst and a Process for the Production of Ethylenically Unsaturated Carboxylic Acids or Esters - The invention relates to a catalyst for the reaction of formaldehyde with a carboxylic acid or ester to produce an ethylenically unsaturated carboxylic acid or ester, preferably α, β ethylenically unsaturated carboxylic acids or ester. The catalyst includes a metal oxide having at least two types of metal cations, M07-11-2013
20120078004Acrylic Acid from Lactide and Process - Technical grade acrylic acid derived from renewable resources utilizing a homogeneous nickel catalyst system by a process including reacting lactide with acetic acid to form 2-acetoxypropionic acid in the presence of a homogeneous nickel catalyst, pyrolyzing, with or without a catalyst, the 2-acetoxypropionic acid to acrylic acid and acetic acid, condensing and collecting the pyrolysis products in the presence of polymerization inhibitor(s) and purfying the acrylic acid by distillation in the presence of polymerization inhibitor(s). Acrylic acid and methyl acrylate are produced from methyl 2-acetoxypropionate which comes from fermentation derived lactic acid. The disclosed process will produce a “green” (i.e. renewable resources derived) acrylic acid and methyl acrylate ester.03-29-2012
560212000 By dehydration or dealcoholization 2
20100113822Preparation of acrylic acid derivatives from alpha- or beta-hydroxy carboxylic acids - The invention is directed to a process for the preparation of α,β-unsaturated acids, esters and amides from α- or β-hydroxycarboxylic acids or esters or precursors in high yields and high selectivity. The α,β-unsaturated acids or esters are optionally prepared in the presence of specific dehydration and/or esterification catalysts. The α,β-unsaturated amides or substituted amides are prepared optionally in the presence of a dehydration and/or amidation catalyst. The source of α- or β-hydroxycarboxylic acids or precusor is preferably from a renewable resource. The precursor is defined herein.05-06-2010
20090076297Process for converting a hydroxycarboxylic acid, or salts thereof, to an unsaturated carboxylic acid and/or its esters - A process for converting a salt of a hydroxycarboxylic acid to an unsaturated carboxylic acid, or esters thereof. The process involves converting an ammonium salt of a hydroxycarboxylic acid in aqueous solution to a corresponding hydroxycarboxylic acid and ammonium cation in aqueous solution; and separating the ammonium cation from the aqueous solution, leaving the hydroxycarboxylic acid in aqueous solution. The converting and separating steps may be accomplished by employing a hydrophobic acid or an acid ion exchange resin, each of which must have an acid dissociation constant, i.e., pK03-19-2009
560213000 By dehalogenation or dehydrohalogenation 2
20120059187Process for Preparation of 2-Fluoroacrylic Esters - According to the present invention, there is provided a production process of a 2-fluoroacrylic ester including: a bromination step of converting a 2-fluoropropionic ester to a 2-bromo-2-fluoropropionic ester by reaction of the 2-fluoropropionic ester with a nitrogen-bromine bond-containing brominating agent in the presence of a radical initiator; and a dehydrobromination step of reacting the 2-bromo-2-fluoropropionic ester with a base. It is not necessary in this process to adopt very-low-temperature conditions and to use a stoichiometric amount of expensive reagent. The target 2-fluoroacrylic ester can be thus produced at low cost.03-08-2012
20120283468Preparation of substituted 2-fluoroacrylic acid derivatives - The present invention relates to a process for the preparation of substituted 2-fluoroacrylic acid derivatives.11-08-2012
560215000 Preparing esters from nitriles or amides 5
20110060159PROCESS FOR PREPARING CARBOXAMIDES BY HYDROLYSING CARBONITRILES IN THE PRESENCE OF A CATALYST COMPRISING MANGANESE DIOXIDE - The present invention relates to a process for preparing carboxamides by hydrolysing carbonitriles in the presence of a catalyst comprising manganese dioxide, wherein the reaction mixture added to the catalyst comprising manganese dioxide has a pH in the range of 6.0 to 11.0 and the hydrolysis is performed in the presence of an oxidizing agent.03-10-2011
20110077424Process for recovering valued compounds from a stream derived from purification of methyl methacrylate - The present invention provides a method for extractive recovery and conversion of selected compounds, such as methacrylic acid (MAA) and 2-methacrylamide (MAM), from a stream derived from purification of methyl methacrylate (MMA) or methacrylic acid (MAA) produced via a conventional ACH route process.03-31-2011
20110306784METHOD FOR PRODUCING A CARBOXYLIC ACID AMIDE FROM A CARBONYL COMPOUND AND HYDROCYANIC ACID - The invention relates to a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid, comprising the steps of A) reacting a carbonyl compound with hydrocyanic acid to produce a hydroxycarboxylic acid nitrile, B) hydrolysis of the hydroxycarboxylic acid nitrile obtained in step A) in the presence of a catalyst comprising manganese dioxide, wherein a molar excess of carbonyl compound is used in relation to the hydrocyanic acid to react the carbonyl compound with hydrocyanic acid according to step A), and the reaction mixture obtained in step A) is not purified by distillation before the hydrolysis according to step B) is carried out. The invention furthermore relates to a method for producing alkyl(meth)acrylates from polymers, moulding compounds and moulded bodies, wherein a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid is carried out in accordance with the method described above.12-15-2011
20100069662INTEGRATED PROCESS AND APPARATUS FOR PREPARING ESTERS OF METHACRYLIC ACID FROM ACETONE AND HYDROCYANIC ACID - The subject-matter of the present invention relates in principle to a process for preparing alkyl esters of methacrylic acid and its conversion products, which can be used in a multitude of chemical synthesis processes which can lead to a wide variety of different further processing products, and to an apparatus for performing this process.03-18-2010
20100249449METHOD FOR AMIDATING OF NITRILE IN THE PRESENCE OF SULFURIC ACID - The present invention relates to a process for preparing carboxamides by amidating nitriles in the presence of sulphuric acid, wherein the reaction is performed in a Taylor reactor. The process enables a simple and inexpensive preparation of these compounds. The present invention further provides processes for preparing (meth)acrylamides and alkyl(meth)acrylates, which comprise an inventive amidation reaction.09-30-2010
560216000 Preparing esters by depolymerization 1
20100121097RECOVERY METHOD OF PYROLYSIS PRODUCT OF RESIN - A method of recovering pyrolysis products of resin of the present invention includes cooling gaseous pyrolysis products generated from pyrolysis of the resin in a pyrolysis tank to recover the resin as liquid pyrolysis products. The method includes the following steps (1) to (4): (1) continuously feeding fluidization gas, heated solid particles, and a resin into the pyrolysis tank to fluidize the solid particles and the resin by the fluidization gas; (2) continuously feeding the resin into the pyrolysis tank from a position which is ½ or less of the height of a solid particle layer in the pyrolysis tank in a stationary state; (3) continuously discharging the solid particles from a position lower than the height of a feeding position of the resin; and (4) heating the discharged solid particles in a heating furnace and then feeding the heated solid particles into the pyrolysis tank.05-13-2010
560217000 Preparing esters by ester interchange 6
20110201839MANUFACTURE OF ESTERS - The invention relates to a process in which a compound R08-18-2011
20110130590METHOD FOR THE PRODUCTION OF (METH)ACRYLIC ESTERS - The present invention relates to a process for preparing (meth)acrylates, comprising the transesterification of a low-boiling ester of (meth)acrylic acid with a reactant alcohol in the presence of catalysts, which is characterized in that the transesterification is catalysed by a basic ion exchanger.06-02-2011
20100145092METHOD FOR THE SYNTHESIS OF (METH)ACRYLIC ESTERS CATALYSED BY A POLYOL TITANATE - The subject of the invention is a method for the synthesis of (meth)acrylic esters by transesterification in the presence of a catalyst corresponding to the formula [(R′O)06-10-2010
20120123148COMPOSITION INCLUDING DIALKYL TIN OXIDE AND USE THEREOF AS A TRANSESTERIFICATION CATALYST FOR THE SYNTHESIS OF (METH) ACRYLIC ESTERS - The present invention relates to a composition including a dialkyl tin oxide, such as DBTO, which can be used as a transesterification catalyst for the synthesis of (meth)acrylic esters. The invention also relates to a method for the synthesis of (meth)acrylic esters by transesterification in the presence of said composition.05-17-2012
20100204509METHOD FOR PRODUCING (METH)ACRYLATES - The present invention relates to a process for preparing (meth)acrylates, which comprises the transesterification of an alcohol with a low-boiling ester of (meth)acrylic acid in the presence of catalysts, with the alcohol liberated from the low-boiling ester of (meth)acrylic acid being separated off by distillation, characterized in that the molar ratio of low-boiling ester of (meth)acrylic acid to starting alcohol present in the reaction mixture is increased during the reaction by addition of low-boiling ester of (meth)acrylic acid. The process of the invention makes a particularly inexpensive preparation of (meth)acrylates having a very high purity possible.08-12-2010
20100298594PRODUCTION OF N,N-DIALKLYLAMINOETHYL (METH)ACRYLATES - A method and apparatus for preparing a N,N-dialkylaminoalkyl acrytate in a continuous transesterification reaction. The reaction involves adding alkyl acrylates such as methacrylate or ethacrylate to a reboiler mechanism and efficiently removing alcohol co-products. Because the reaction is continuous, the alkyl acrylates can be added as needed to increase output, decrease output, or fine-tune the reaction dynamics. An entrainer is used to form a volatile azeotrope which contains both alcohol and entrainer and which is easily removed from the reboiler mechanism. This method reduces the amount of entrainer needed per unit of alkyl acrylate used and eliminates any need to purify the end product from entrainer contamination of the resulting N,N-dialkylaminoalkyl acrylate product.11-25-2010
560218000 Purification or recovery 8
20090299090Method for production of purified (meth)acrylic acid - The present invention relates to reducing corrosion of distillation equipment during azeotropic distillation of (meth)acrylic acid in the presence of dissolved copper, by providing aqueous (meth)acrylic acid having not more than 0.1% by weight formaldehyde, based on the total weight of the aqueous (meth)acrylic acid. The source of the copper may, for example, be copper-based polymerization inhibitors added to the aqueous (meth)acrylic acid and/or distillation equipment.12-03-2009
20110230675METHOD OF RECOVERING (METH) ACRYLIC ACID ESTER - The present invention provides a method of recovering a (meth)acrylic acid ester, which comprises the steps of: (a) carrying out an esterification reaction between an alcohol and (meth)acrylic acid in the presence of a catalyst to obtain a (meth)acrylic acid ester, wherein a byproduct is generated together with the (meth)acrylic acid ester; and (b) subjecting the byproduct generated in step (a) to a reaction with a catalyst and water in a reactor, wherein the water is fed into the reactor in order that water content exceeds 0 wt % but is 10 wt % or less in the reactor based on the total weight of reactants comprising the byproduct, the catalyst and the water, and thereby separating the (meth)acrylic acid, the alcohol and the (meth)acrylic acid ester contained in the byproduct from the byproduct to obtain the (meth)acrylic acid, the alcohol and the (meth)acrylic acid ester as a recovered product.09-22-2011
20090209783Process for the production of hydroxyalkyl (meth)acrylates - The present invention relates to a process for producing high purity hydroxyalkyl (meth)acrylates. Specifically, the present invention relates to an improved process which can commercially and advantageously yield high purity hydroxyalkyl (meth)acrylates from (meth)acrylic acid and alkylene oxides.08-20-2009
20130217914PROCESS FOR PRODUCING METHYL METHACRYLATE HAVING REDUCED BIACETYL CONTENT - This invention provides a process for reducing biacetyl in alpha-, beta-unsaturated carboxylic acid esters, particularly in acrylic or methacrylic (hereinafter “(meth)acrylic”) esters, which comprise low levels of weak acid.08-22-2013
20110152568Allyl acetate purification - A process for purifying allyl acetate is disclosed. An acetoxylation mixture is distilled at elevated pressure to remove propylene and generate a first bottoms mixture comprising allyl acetate, acetic acid, acrolein, allyl diacetate, and 3-acetoxypropionaldehyde. The first bottoms mixture is flash vaporized, and the resulting vapor is contacted with a solid acidic catalyst under conditions effective to decompose allyl diacetate and 3-acetoxypropionaldehyde. The flashed product, which comprises allyl acetate, acetic acid, and acrolein, is then distilled to remove acrolein and generate a second bottoms mixture comprising allyl acetate and acetic acid. The second bottoms mixture can be used to manufacture allyl alcohol.06-23-2011
20130158288Process For Producing Acrylic Acids and Acrylates - In one embodiment, the invention is to process for producing acrylics. The process includes the steps of contacting a crude product stream with an extraction agent mixture at a temperature less than 50° C.06-20-2013
20100317887PROCESS FOR PREPARING (METH)ACRYLATES OF C10-ALCOHOL MIXTURES - Process for preparing (meth)acrylates of C12-16-2010
20120029229METHOD FOR PRODUCING HIGH PURITY TERMINAL OLEFIN COMPOUND - An industrially advantageous method for producing a high purity terminal olefin is disclosed, comprising the steps of (a) contacting a mixture comprising a terminal olefin represented by formula (1):02-02-2012
560219000 Halogen in acid moiety 4
20090221845FLUORINATED COMPOUND, AND FLUOROPOLYMER, PROCESS FOR ITS PRODUCTION AND RESIST COMPOSITION CONTAINING IT - To provide a fluoropolymer having functional groups and having high transparency in a wide wavelength region, and a resist composition comprising the fluoropolymer.09-03-2009
20120004444Process for Producing Monomer for Fluorinated Resist - According to the present invention, an α-substituted acrylic ester monomer for a fluorinated resist is produced by direct addition of an α-substituted acrylic acid to a fluorinated alkene in the presence of a specific acid catalyst having a sulfonyl group. By the use of such a specific acid catalyst, it is possible to achieve industrial-scale production of the α-substituted acrylic ester monomer for the fluorinated resist by carrying out the target addition reaction of the fluorinated alkene and the α-substituted acrylic acid efficiently during the occurrence of side reactions such as isomerization of the alkene, generation of a diol and excessive addition of the α-substituted acrylic acid.01-05-2012
20080255385METHOD FOR PRODUCING OPTICALLY ACTIVE (4E)-5-CHLORO-2-ISOPROPYL-4-PENTENOIC ACID OR BASIC AMINO ACID SALT THEREOF - To provide a method for producing an optically active (4E)-5-chloro-2-isopropyl-4-pentenoic acid, a basic amino acid salt thereof or an optically active (4E)-5-chloro-2-isopropyl-4-pentenoic acid ester with high yield and high optical purity by simple operation.10-16-2008
20080207943Process for Preparing Racemic Alkyl-5-Halopent-4-Enecarboxylic Acids or Carboxylic Esters - A process for preparing racemic alkyl-5-halopent-4-enecarboxylic acids and esters thereof of the formula (I), in which R is a C08-28-2008
560220000 Cyclic alcohol moiety 10
20100217033Method for Producing Polymerizable Hydroxydiamantyl Ester Compound - The present invention discloses a method for producing a polymerizable hydroxydiamantyl ester compound, which comprises di-halogenating a raw material compound having a diamantane skeleton, such as diamantane or the like, then hydrolyzing the di-halogenation product to produce a 4,9-diamantanediol compound, thereafter esterifying the 4,9-diamantanediol compound in a mixture of a polymerizable unsaturated carboxylic acid and a polymerizable unsaturated carboxylic acid anhydride in the presence of a polymerization inhibitor and an acid catalyst, to obtain a polymerizable hydroxydiamantyl ester compound.08-26-2010
20110137073Process for Producing Alpha-Substituted Norbornanyl Acrylates - Disclosed is a process for producing α-substituted norbornanyl acrylates efficiently on an industrial scale while suppressing the formation of by-products derived from intramolecular cyclization, excessive addition to acrylic acid etc. The α-substituted norbornanyl acrylates are useful as norbornene resist monomers. In the disclosed process, an α-substituted acrylic acid is directly reacted with a substituted norbornene in the presence of at least one acid catalyst selected from methanesulfonic acid and camphorsulfonic acid. It is possible in this reaction to suppress the formation of the by-products derived from intramolecular cyclication, excessive addition of the acid to the reaction product etc.06-09-2011
20120123149Composition having hase rheology modifiers - A monomer compound that contains at least one polymerizable functional group per molecule, and at least one bicycloheptyl-, bicycloheptenyl-, or branched (C05-17-2012
20130023693COMPOUND HAVING ALICYCLIC STRUCTURE, (METH)ACRYLIC ACID ESTER, AND PROCESS FOR PRODUCTION OF THE (METH)ACRYLIC ACID ESTER - Provided are an alicyclic structure-containing compound, a (meth)acrylate, and a method for producing the ester. The compound and the ester are useful as a monomer and the like for a photoresist used in semiconductor manufacturing and excellent in solubility, compatibility, defect reduction, roughness improvement, and the like, realized by using an alicyclic structure-containing compound containing a linking group having an ester bond and/or a linking group having an ether bond, a (meth)acrylate derived from the alicyclic structure-containing compound, and a method for producing the ester.01-24-2013
560221000 Aromatic alcohol moiety 6
20110301379METHOD FOR PRODUCING A (METH)ACRYLATE - Disclosed is a method for producing a (meth)acrylate ester wherein a high purity (meth)acrylate ester is obtained with a high yield, with a reduced loss of (meth)acrylic acid anhydride. In the method, (meth)acrylic acid is recovered with a high yield, and the (meth)acrylate ester is purified easily. Specifically disclosed is a method for producing a (meth)acrylate ester which comprises: (1) a step of producing (meth)acrylic acid anhydride by reacting a specific fatty acid anhydride and (meth)acrylic acid, while removing a by-produced fatty acid; (2) a step of obtaining a (meth)acrylate ester by reacting an alcohol and unpurified (meth)acrylic acid anhydride obtained in step (1) preferably at a temperature not less than 90° C.; and (3) a step of recovering (meth)acrylic acid by distillation preferably at a temperature not less than 90° C. The method may also comprise a step of heating or distilling the reaction liquid obtained in step (2) at a temperature not less than 90° C.12-08-2011
20110201840TERMINAL 1,1-DISUBSTITUTED ALKENES, METHOD OF MAKING AND USING THEREOF - Disclosed is a process for preparing terminal 1,1-disubstituted alkenes and is to compounds prepared therewith.08-18-2011
20110152569RADICAL POLYMERIZABLE MACROCYCLIC RESIN COMPOSITIONS WITH LOW POLYMERIZATION STRESS - A composition of macrocyclic oligomer with at least one (meth)acrylate polymerizable group. A method includes preparing an activated precursor of an oligomer at pseudo high-dilution conditions. A method also includes preparing an activated precursor of an oligomer by reacting the precursor with an activated coupling agent, wherein the precursor is condensable and polymerizable.06-23-2011
20110166381LIGHT FILTERS COMPRISING A NATURALLY OCCURRING CHROMOPHORE AND DERIVATIVES THEREOF - A composition comprising a polymer backbone and at least one side group, wherein the side group comprises a benzene ring-based chromophore comprising a ketone at the 1-position, a substituted or unsubstituted amino group at the 2-position, and an oxygen atom at the 3-position of the benzene ring. The chromophore is a kynurenine-based compound. Methods of making and using the composition are also provided. The composition can be used in an ophthalmic lens or device for protecting the retina by blocking UV rays and filtering violet rays.07-07-2011
20120330052CONJUGATED AROMATIC COMPOUND, OPTICAL MATERIAL, AND OPTICAL ELEMENT - The present invention relates to a conjugated aromatic compound represented by the Formula (1) in claim 12-27-2012
20130144083PROCESS AND METHOD FOR THE EFFICIENT PREPARATION OF FULLERYNES - The preparation of novel fullerynes which are fullerenes (e.g. C06-06-2013
560222000 Phosphorus, sulfur or nitrogen in alcohol moiety 5
20110178327CONTINUOUS PRODUCTION OF DMAEA QUATERNARY SALTS - The invention provides a method of continuously producing high quality quaternized N,N-dialkylaminoethyl (meth)acrylates (DMAEA.MCQ) that has a long shelf life and which is stable in water. The method involves placing starting materials into a continuously stirred tank reactor in the presence of less than 6% water. This low amount of water causes two liquid phases to form and prevents unwanted side reactions. The denser liquid phase contains DMAEA.MCQ and the lighter phase contains the starting materials. Liquid from the denser phase is removed from a position where little of the lighter phase has been mixed in. The removed liquid then has any last traces of the starting materials reacted into DMAEA.MCQ and strips away any starting materials with a gas flow. The resulting liquid is high purity DMAEA.MCQ. Water can then safely be added to ease in the transport and use of the produced DMAEA.MCQ.07-21-2011
20110021808PROCESS FOR UNSATURATED QUATERNARY AMMONIUM SALT - An unsaturated quaternary ammonium salt is produced by a process that includes reacting methyl chloride in a first vessel with a stoichiometric excess of an unsaturated tertiary amine in the presence of water to form a reaction mixture that includes the unsaturated quaternary ammonium salt and residual unsaturated tertiary amine. The reaction mixture is transferred to a second vessel and phase separated to yield a first fraction in which the unsaturated quaternary ammonium salt is concentrated, and a second fraction in which the residual unsaturated tertiary amine is concentrated. At least a portion of the second fraction is recycled from the second vessel to the first vessel for use in the reaction with methyl chloride. The process, which is preferably operated continuously, allows the use of reduced reaction pressures compared to processes utilizing a stoichiometric excess of methyl chloride, and it also reduces or eliminates the problems associated with recycling methyl chloride and removing methyl chloride from the unsaturated quaternary ammonium salt product.01-27-2011
20120172619METHOD OF PREPARING PHOTOACID GENERATING MONOMER - A method of preparing a monomer comprises reacting a sultone of the formula (I):07-05-2012
20100174109METHOD FOR PRODUCING ETHYLENICALLY UNSATURATED GROUP-CONTAINING ISOCYANATE COMPOUND HAVING ETHER BOND - To provide a method for producing an ethylenically unsaturated group-containing isocyanate compound having an ether bond under such conditions that the ether bond is unlikely to be cleaved and the polymerization of an unsaturated group can be suppressed. The method for producing an ethylenically unsaturated group-containing isocyanate compound having an ether bond of the present invention is a method for producing an ethylenically unsaturated double bond-containing isocyanate compound from an amino alcohol having an ether bond and is characterized in that a reaction solvent in which the solubility of hydrogen chloride is 0.1 mole percent or less at 25° C. is used.07-08-2010
20130023694PROCESS FOR PRODUCING ISOCYANATES - The invention relates a process for producing isocyanates comprising the steps of a) providing an azolide and optionally a solvent, and b) adding an acid at a temperature below about 40 C. The invention also relates to the isocyanate obtainable by such a process.01-24-2013
560223000 Halogen in alcohol moiety 2
20090023948Method for Producing Fluorine-Containing Alkyl (Meth)Acrylate - The present invention discloses a method for producing a fluorine-containing alkyl (meth)acrylate represented by the following general formula (2):01-22-2009
20120203028PROCESS FOR THE PREPARATION OF PURE ACRYLATE ESTERS - The present invention provides a process for manufacturing acrylate esters of trinol, dinol, and didinol, which avoids the undesired thermopolymerization of the esters and provides highly pure monomers for the preparation of plastic lenses.08-09-2012
560224000 Polyoxy alcohol moiety 5
20100160672PROCESS FOR THE PRODUCTION OF ACRYLIC AND METHACRYLIC ESTERS OF POLY(TRIMETHYLENE ETHER) GLYCOL - Processes are provided for producing novel (meth)acrylic esters of poly(trimethylene ether) glycol. The processes include reacting poly(trimethylene ether) glycol with (meth)acrylic acid or equivalents thereof.06-24-2010
20110028754PROCESS FOR HETEROGENEOUSLY CATALYZED ESTERIFICATION OF (METH)ACRYLIC ACID WITH OXYALKYLATED POLYOLS - The present invention relates to a process for heterogeneously catalyzed partial esterification of (meth)acrylic acid with oxyalkylated polyols, wherein the oxyalkylated polyols have at least 3 free hydroxyl groups, and wherein the catalyst is selected from the group comprising acidic ion exchange resins and/or acidic zeolites. The invention further relates to (meth)acrylic esters and urethane acrylates, obtained by a process according to the present invention, and to the use thereof as radiation-curable compounds.02-03-2011
20090192329METHOD TO PRODUCE POLYHYDROXY CARBOXYLIC ACID ESTERS OF POLYETHYLENE GLYCOL - A method to produce polyethylene glycol ester comprises the step of reacting polyethylene glycols with polyhydroxy carboxylic acids or estolides polyhydroxy fatty acids at a temperature of 120° C. to 200° C. in the absence of any catalysts.07-30-2009
20120271064METHOD FOR PRODUCING HYDROXYALKYL(METH)ACRYLATES - The present invention relates to a continuous process for preparing hydroxyalkyl (meth)acrylates, more particularly those hydroxyalkyl (meth)acrylates which have more than one (meth)acrylate group per molecule.10-25-2012
20130172600Novel Polymers - The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least two different hydrophilic monomers selected from the group consisting of N,N-dimethyl acrylamide (DMA), 2-hydroxyethyl acrylate (HEA), glycidyl methacrylate (GMA), N-vinylpyrrolidone (NVP), acrylic acid (AA) and a C07-04-2013
560225000 Unsaturation in alcohol moiety 4
20100185009METHOD FOR SYNTHESIZING ALLYL METHACRYLATE - The present invention relates to a process for preparing allyl methacrylate, comprising the reaction of allyl alcohol with an ester of methacrylic acid, wherein the reaction is catalysed by zirconium acetylacetonate. The process according to the invention enables particularly favourable preparation of allyl methacrylate with a very high purity.07-22-2010
20100240923ENZYMATIC SYNTHESIS OF (METH)ACRYLIC ESTERS OF HYDROXY-FUNCTIONAL AROMAS - A process for preparing (meth)acrylic esters (F) of hydroxy-functional aromas (A), in which at least one hydroxy-functional aroma (A) in the presence of at least one enzyme (E) is esterified with (meth)acrylic acid (S), or transesterified with at least one (meth)acrylic ester (D), the reaction in the case of the transesterification being effected in the absence of solvents.09-23-2010
20100063314PROCESS FOR PRODUCING 2-ISOPROPENYL-5-METHYL-4-HEXENE-1-YL-3-METHYL-2-BUTENOATE - Provided is a method capable of solving the problems associated with production of LVSA, which is a pheromone produced by female pest mealybugs, and is useful as an agrochemical pest, at an industrial large scale, and producing LVSA in a high yield. Specifically, the present invention provides a production method of 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate, comprising reacting senecioic acid with a halogenating agent to give senecioic acid halide, reacting the obtained senecioic acid halide with 2-isopropenyl-5-methyl-4-hexen-1-ol in the presence of an organic base compound and heat treating the obtained crude 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate in the presence of a basic substance at 50-250° C.03-11-2010
20110269987 Process for Preparation of Hexadecyl Cis-9-Tetradecenoate and Hexadecyl Cis-10-Tetradecenoate - Hexadecyl cis-9-tetradecenoate commonly known as Cetyl myristoleate (CMO) is being used for the treatment of osteoarthritis and other joint inflammatory diseases, cis-9-Tetradecenoic acid (cis-9-myristoleic acid) is the main precursor for the preparation of CMO. As there are limited natural plant sources for cis-9-tetradecenoic acid, the present invention aimed at the synthesis of cis-9-tetradecenoic acid methyl ester from oleic acid methyl ester. As oleic acid is not available in pure form, this has to be isolated from oleic acid-rich oils like olive oil. cis-10-Tetradecenoic acid methyl ester, an isomer of cis-9-tetradecenoic acid was also prepared from undecenoic acid methyl ester, a derivative of castor oil. Undecenoic acid is easily available commercially in pure form. Hexadecyl cis-9-tetradecenoate and hexadecyl c/s-10-tetradecenoate were prepared by enzymatic transesterification of cis-9-tetradecenoic acid methyl ester and cis-10-tetradecenoic acid methyl ester with 1-hexadecanol (cetyl alcohol) respectively. Both the isomers of cetyl myristoleate were evaluated for anti arthritis, blocking inflammation and reduction of adjuvant-induced arthritis in rats.11-03-2011

Patent applications in class Unsaturation in acid moiety

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