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| Number | Title | Issue Date |
| 7737297 | Esterification process of polyols with tertiary alkyl substituted acids A process to prepare polyol esters from tertiary alkyl acid with reduced homo-polymerisation of the polyols. The ester polyol can be used in the synthesis of further polyester resins for coating or structural/composite or lube oil applications. ... | 06/15/2010 |
| 7674931 | Method for producing 2,2,4-trimethyl-1,3-pentanediol di-2-ethylhexanoate A method for maximizing the yield of 2,2,4-trimethyl-1,3-pentanediol di-2-ethylhexanoate (TMPD di-2-ethylhexanoate) from the reaction of 2,2,4-trimethyl-1,3-pentanediol (TMPD Glycol) and 2-ethylhexanoic acid through the intermediate compound 2,2,4-Trimethyl-1,3-pent... | 03/09/2010 |
| 7612228 | Synthetic method of glycol diesters from reaction of glycol monoesters and linear aliphatic carboxylic acids A method of synthesizing glycol diester by reacting a linear aliphatic carboxylic acid and a glycol monoester in the presence of a Lewis acid type catalyst is provided. In the method, after introducing the glycol monoester, the linear aliphatic carboxylic acid and t... | 11/03/2009 |
| 7453008 | Synthetic method of glycol diesters from reaction of glycol monoesters and linear aliphatic carboxylic acids A method of synthesizing glycol diester by reacting a linear aliphatic carboxylic acid and a glycol monoester in the presence of a Lewis acid type catalyst is provided. In the method, after introducing the glycol monoester, the linear aliphatic carboxylic acid and t... | 11/18/2008 |
| 7393961 | Polyhalogenated ethers (Per)haloethers having formula: X-(Rf)L-O—CF2CF2—O—CX1X2—CFX3X4 , (I) process for obtaining them and hypofluorites usable in the synthesis of said (per)hal... | 07/01/2008 |
| 7304177 | Method for improving spreading properties of cosmetic ingredients Described is a method for improving the spreading properties of fatty alcohol containing cosmetic ingredients by providing a fatty alcohol containing starting material and adding an effective amount of acylating source [e.g., R1C)═O)OC(═O)R2 | 12/04/2007 |
| 7301048 | Process for isolating vinyl acetate A process for isolating vinyl acetate from the gas mixture formed in the reaction of ethylene with acetic acid and oxygen in the gas phase over catalysts comprising palladium or palladium compounds, with recirculation of the acetic-acid solution obtained in the circ... | 11/27/2007 |
| 7176329 | Monocarboxylic acid esters of propoxylated fatty alcohols as pigment dispersants A novel fatty polypropoxylate ester which is an ester of an aliphatic or an aromatic monoacid formed by reacting the acid with a stoichiometric excess of a polypropoxylated fatty alcohol. The compounds have the following structural formula: | 02/13/2007 |
| 7169833 | Liquid epoxy resin composition and semiconductor device A liquid epoxy resin composition comprising (A) a liquid epoxy resin, (B) an aromatic amine curing agent comprising 5–100% by weight of a specific aromatic amine compound having a purity of at least 99%, (C) an inorganic filler, and (D) an ester organic solvent ha... | 01/30/2007 |
| 6995107 | Raney catalyst, process for producing it and process for producing a sugar-alcohol using the same To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst made... | 02/07/2006 |
| 6939980 | Process for producing ester A method for producing an ester comprising the steps of reacting an alcohol with a carboxylic acid to obtain a crude esterfied product, adding 5 to 100 parts by weight of a hydrocarbon solvent with respect to 100 parts by weight of the crude esterified product and p... | 09/06/2005 |
| 6933337 | Plastisol compositions comprising vinyl chloride polymers and mixtures of aromatic and aliphatic esters of diols as plasticizers Mixtures of esters produced by reacting a mixture of aromatic and aliphatic monocarboxylic acids with a diol containing from 2 to 12 carbon atoms are effective plasticizers for plastisols containing dispersion grade polymers of vinyl chloride. The freezing point of ... | 08/23/2005 |
| 6900347 | Impurity inhibition in olefin metathesis reactions Reaction mixtures and methods using catalysts and reaction conditions to produce significantly improved yields (and thereby higher purity) of olefin metathesis products, with greatly reduced amounts of impurities. These techniques include in one instance reduction i... | 05/31/2005 |
| 6831121 | Trimethylolpropane ester-based plasticizer composition for polyvinyl chloride resin The present invention relates to a trimethylolpropane ester-based plasticizer composition for polyvinyl chloride resin, more particularly a plasticizer composition comprising trimethylolpropane ester capable of using as plasticizer of polyvinyl chloride resin. The p... | 12/14/2004 |
| 6586609 | Process for esterification in a chromatographic reactor Process for the esterification of organic acids with alcohols in a reactor of the chromatographic type in which the heterogeneous solid phase is capable of acting both as an esterification catalyst and as a means exhibiting preferential adsorption towards... | 07/01/2003 |
| 6457303 | Synthesis of epothilones Various epothilone precursors needed for the preparation of final epothilones are provided.... | 10/01/2002 |
| 6433217 | Process for the preparation of glycidylesters of branched carboxylic acids A process for the manufacture of glycidylesters of branched monocarboxylic acids, comprising (a) the reaction of the -branched monocarboxylic acid with a halo substituted monoepoxide such as an epihalohydrin (e.g. epichlorohydrin), in a 2-20 molar ... | 08/13/2002 |
| 6423856 | Process for preparing ester plasticizers The present invention relates to a process for preparing ester plasticizers from ethylene glycol or the dimers, trimers or tetramers of this compound and linear or branched aliphatic monocarboxylic acids having from 3 to 20 carbon atoms. The reaction is c... | 07/23/2002 |
| 6414201 | Raney catalyst, process for producing it and process for producing a sugar-alcohol using the same To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst ... | 07/02/2002 |
| 6362362 | Process for preparing and purifying complex esters The invention concerns a process for manufacturing polyol complex esters. According to the method, a polyol, such as BEPD or NPG, is reacted with mono- and polyvalent acids in the presence of a catalyst to produce a reaction blend containing complex ester... | 03/26/2002 |
| 6348593 | Process for preparing folic acid A process for preparing folic acid, which comprises reacting a tetraalkoxypropanol of the general formula I, ##STR1## in which the substituents R are C1 -C4 -alkyl, with triaminopyrimidone of the formula II and p-aminobenzoyl-L-gluta... | 02/19/2002 |
| 6307093 | Organic compounds and processes for their manufacture Esters of branched C9 alcohols suitable as plasticizers are formed by esterification of a C9 alcohol produced by the aldol condensation from propanal and a C6 aldehyde and hydrogenation, the propanal optionally having been... | 10/23/2001 |
| 6271413 | Process for producing polytetramethylene ether glycol diester on aluminium magnesium silicate catalysis An improved process for the preparation of polytetramethylene ether glycol diesters of the formula R--CO--O(--CH2 -CH2 -CH2 -CH2 -O)n -COR1 in which R and R1 are identical or different and... | 08/07/2001 |
| 6184400 | Method of manufacturing a fatty acid ester of polyoxyalkylene alkyl ether A method of manufacturing a fatty acid ester of polyoxyalkylene alkyl ether wherein a fatty acid ester of polyoxyalkylene alkyl ether represented by the following formula (I) is produced through a reaction between a fatty acid alkyl ester with an alkylene... | 02/06/2001 |
| 6130191 | Process for the preparation of trimethylolpropane caprylate/caprate A process for the preparation of a mixture of trimethylolpropane caprylate and trimethylolpropane caprate comprising the steps of A) purifying a less than pure mixture of methyl caprylate and methyl caprate; B) reacting the purified mixture from step A) with t... | 10/10/2000 |
| 6124270 | Use of a cationic amphipathic compound as a transfection agent, vaccine additive or drug A cationic amphipathic compound of formula (I), ##STR1## wherein A is a single bond, an NH--R' grouping or (a), wherein --R'-- is a straight or branched, optionally substituted, saturated or unsaturated C1-22 aliphatic chain optionally int... | 09/26/2000 |
| 5986122 | Treatment of polyethers prior to hydrosilylation This Invention discloses the use of ascorbic and citric acid, their salts, ethers, acid esters and mixtures thereof in a method for the prevention of peroxide formation, and/or for decomposing peroxides already formed in polyethers. Hereby, the polyethers... | 11/16/1999 |
| 5976202 | Reaction products of polyolefins with vinyl esters and their use as fuel and lubricant additives Reaction products of polyolefins having predominantly a terminal double bond and a number average molecular weight of from 250 to 10,000, which possess an aliphatic hydrocarbon skeleton which is straight-chain or carries C1 -C4 -alky... | 11/02/1999 |
| 5777157 | Process for production and purification of triacetin A method for producing and purifying triacetin. The method includes an initial separation of triacetin from a crude composition of triacetin and impurities. The separated triacetin is then contacted with an aqueous solution containing an oxidant, and resu... | 07/07/1998 |
| 5728658 | Biodegradable synthetic ester base stocks formed from branched oxo acids A biodegradable lubricant which is prepared from: about 60-99% by weight of at least one biodegradable synthetic ester base stock which comprises the reaction product of: a branched or linear alcohol having the general formula R(OH)n, wherein R... | 03/17/1998 |
| 5665686 | Polyol ester compositions with unconverted hydroxyl groups A synthetic ester composition exhibiting thermal and oxidative stability which comprises the reaction product of: a branched or linear alcohol having the general formula K(OH)n, wherein R is an aliphatic or cyclo-aliphatic group having from abo... | 09/09/1997 |
| 5654472 | Triazole derivatives The present invention relates to a novel glycerol derivative and a process for preparing the same, and a process for preparing a triazole derivative. According to the present invention, an optical active 2-arylglycerol derivative which is a novel and useful as... | 08/05/1997 |
| 5645852 | Butyric ester cyto-differtiating agents This invention provides a method of inducing cell differentiation in a subject and methods of treating leukemia, thalassemia, or sickle cell anemia by administration to the subject of one or more oral bolus doses of a pharmaceutical composition comprising... | 07/08/1997 |
| 5618973 | Esterification process An esterification process for producing glycol ether esters which comprises reacting a lower hydrocarbyl carboxylic acid with a glycol ether alcohol in the presence of a long chain alkyl substituted aryl sulfonic acid esterification catalyst, the alkyl ra... | 04/08/1997 |
| 5453468 | Prepolymers containing a perfluoropolyethereal chain and carboxylic end groups, suitable as cross-linking agents for epoxy prepolymers The invention relates to two classes of prepolymers containing a perfluoropolyethereal chain and carboxylic end groups, suitable as cross-linking agents for epoxy prepolymers. The first class contains anhydride-derived end groups; the second lactone-deriv... | 09/26/1995 |
| 5426214 | Propylene glycol monomethyl ether butyrates and isomers, and the process for the preparation thereof Propylene glycol monomethyl ether butyrates and their isomers are obtained by the esterification of propylene glycol monomethyl ether or its isomer with iso-butyric or n-butyric acid at an elevated temperature above 80° C. in the presence of acidic catal... | 06/20/1995 |
| 5380920 | Preparation of R/S-γ-lipoic acid or R/S--lipoic acid A process for preparing R/S-γ-lipoic acid of the formula I or R/S--lipoic acid of the formula II ##STR1## is disclosed.... | 01/10/1995 |
| 5371279 | Acetic acid removal from liquid ether acetates Disclosed is a method of making a liquid ether acetate. After reacting acetic acid with the corresponding ether alcohol, the resulting mixture of ether acetate, water, acetic acid, and ether alcohol is, with no distillation, contacted with alumina. Partic... | 12/06/1994 |
| 5349075 | Continous esterification of carboxylic and fatty acids in the absense of a catalyst The invention provides a process for the esterification of a C2 -C24 monocarboxylic acid with a C1 -C5 monoalcohol in a reactor at an increased reaction temperature and increased pressure which is carried out in... | 09/20/1994 |
| 5324863 | Process for the production of di-trimethylolpropane Process for the production of di-trimethylolpropane (di-TMP), which comprises subjecting a solution containing less than 3 per cent by weight, preferably less than 1 per cent by weight of water, free trimethylolpropane (TMP) and/or partial ester between T... | 06/28/1994 |
