Matches 51 - 100 out of 305 < 1 2 3 4 5 6 7 >
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6504061 Alkoxylation catalyst and method for producing the same, and method for producing alkylene oxide adduct using the catalyst  
The present invention provides an alkoxylation solid catalyst with which an alkylene oxide adduct having a narrow adduct distribution can be produced while inhibiting formation of high molecular...
6495727 Process for preparing ether-capped poly(oxyalkylated) alcohol surfactants  
A process for preparing an ether-capped poly(oxyalkylated) alcohol surfactant having the formula R 1 O[CH 2 CH(R 3 )O] x CH 2 CH(OH)CH 2 OR 2 wherein R 1 and R 2 are linear or branched,...
6482993 Method for producing long chain polyether polyols without reprocessing  
This invention relates to a process for the production of long-chain polyether polyols without working up, in which oligomeric, alkoxylated starter compounds having molecular weights of 200 to 1000...
6482994 Ether-capped poly(oxyalkylated) alcohol surfactants  
Ether-capped poly(oxyalkylated) alcohol surfactants having superior grease cleaning abilities and improved spotting/filming benefits are provided. The alcohol surfactants have the formula: R 1...
6465605 Branched polymeric surfactant reaction products, methods for their preparation, and uses therefor  
Polymeric compounds useful as low foaming surfactants and defoaming and stabilizing agents for aqueous-and nonaqueous-based compositions, and to processes for the preparation of the polymeric...
6455639 Oxirane derivative and process for the preparation thereof  
An oxirane derivative and process for preparation of the same, having a high purity characterized in terms of gel permeation chromatography and thin layer chromatography. The oxirane derivative is...
6444858 Method of reducing flock during alkoxylation  
The present invention provides a method for alkoxylating organic compounds comprising contacting an organic compound adapted to be alkoxylated with an alkylene oxide in a reaction vessel under...
6437195 Preparation of polyoxymethylene dimethyl ethers by acid-activated catalytic conversion of methanol with formaldehyde formed by dehydrogenation of methanol  
A particularly useful process which includes the steps of providing a feedstream comprising methanol, a soluble condensation promoting component capable of activating a heterogeneous acidic...
6410676 Method for producing polyoxyalkylene polyol and derivatives thereof  
The object is to provide a method for producing a polyoxyalkylene polyol and a method for producing a derivative thereof wherein the remaining catalyst compound is efficiently removed from a crude...
6410801 Continuous process for the production of polyether polyols  
A continuous alkoxylation process for the production of polyether polyols is disclosed. The process comprises the use of a plurality of reaction modules each having an outer tube and an inner tube...
6392102 Preparation of polyoxymethylene dimethyl ethers by catalytic conversion of formaldehyde formed by oxidation of dimethyl ether  
A particularly useful process which includes the steps of providing a feedstream comprising providing a source of formaldehyde formed by conversion of dimethyl ether in the presence of a catalyst...
6383970 Solid acid catalyst  
The present invention provides a solid acid catalyst developing high activity and exhibiting high durability in various organic reactions. That is, the present invention provides a solid acid...
6376721 Process for alkoxylation in the presence of rare earth triflimides  
Disclosed is a process for making alkoxylates of organic compounds. The process requires a) providing an active hydrogen organic compound having 1 to 22 carbon atoms and b) alkoxylating the organic...
6372927 Process for preparing alkylene oxide adducts  
The process for preparing an alkylene oxide adduct, including the steps of feeding an organic compound having active hydrogen and an alkylene oxide to a reaction column packed with a solid...
6372923 Process for preparing alcohol derivatives  
The present invention provides a process for preparing an alcohol derivative, where the alcohol derivative is an ester, acetal, ketal, ether glycoside, or alkyl glycoside, by reacting an alcohol...
6365785 Process for preparing ether-capped poly(oxyalkylated) alcohol surfactants  
A process for preparing an ether-capped poly(oxyalkylated)alcohol surfactant is provided. The alcohol has the formula: R 1 O[CH 2 CH(R 3 )O] x CH 2 CH(OH)CH 2 OR 2 wherein R 1 and R 2 are linear...
6365541 Alkoxylation catalyst  
An alkoxylation catalyst is prepared by a) reaction of one mol of a dicarboxylic acid with from 1.5 to 8 mol of an alkoxylated alcohol to form the corresponding dicarboxylic monoester, b)...
6355845 Polymerization of alkylene oxides using metal cyanide catalysts and unsaturated initiator compounds  
Certain alcohol initiators containing unconjugated carbon-carbon double bonds can be alkoxylated with excellent efficiency and low production of by-products using a metal cyanide catalyst.
6350919 Preparation of polyoxymethylene dialkane ethers, by catalytic conversion of formaldehyde formed by dehydrogenation of methanol or dimethyl ether  
Oxygenated organic compounds exhibiting the desired combination of advantageous properties have structures represented by the formula CH 3 E (CH 2 O) x (CHO) y E′ where E is selected from the...
6323375 Crystalline double metal cyanide catalysts for producing polyether polyols  
The present invention relates to highly active, substantially crystalline double metal cyanide (DMC) catalysts, a process for the preparation of these double metal cyanide catalysts, a process for...
6319999 Method for the production of polyadducts of alkylene oxides with a liquid in gas dispersion reactor  
For the semi-continuous production polyadducts of alkylene oxide by an addition reaction of alkylene oxide on a chain initiator having at least one active hydrogen, there is provided a reactor (1)...
6303833 Multi-metal cyanide complexes as catalysts and their use in preparing polyetherpolyols  
A crystalline multimetal cyanide complex of the formula (I) M 1 a [M 2 (CN) b L 1 c ] d *e(M 1 f X g )*hL 2 'iH 2 O (I) where M 1 is at least one element from the group consisting of...
6303832 Oxyalkylation of alkanols with alkylene oxides  
Alkanols are oxyalkylated by a process in which the reaction is carried out using a heterogeneous basic catalyst which is selected from basic aluminates, and the compounds prepared thereby are used...
6300526 Hydro-fluoroalkylvinylethers and process for obtaining them  
Hydro-2,2-difluoroalkylvinylethers having the formula CF 2 CH--O--R A (I) wherein R A is a radical containing fluorine, optionally containing halogens such as Cl, Br, I, hydrogen,...
6291714 Continuous process for effecting gas liquid reactions  
A continuous process for the production of polyadducts of alkylene oxide on a chain initiator with at least one active hydrogen comprises the step of: (a) providing n reaction units constituted by...
6291720 Synthesis of glycol ethers  
This application relates to a process for making glycol ethers, said process comprising reacting an olefin oxide with an alcohol over a catalyst comprising a crystalline metallosilicate which is...
6248889 Process for converting an alcohol to the corresponding fluoride  
A process for preparing a fluoride from its corresponding alcohol comprises the steps of (a) forming a mixture comprising (i) at least one fluorinated, saturated aliphatic or alicyclic sulfonyl...
6239315 Single-step method for producing glycol monoethers from olefins  
A process for preparing glycol monoethers from olefins comprises reacting the olefins with an epoxidizing reagent in the simultaneous presence of hydroxyl-containing organic compounds over a...
6218580 Process for intermolecular etherification and ether cleavage  
The acid-catalyzed intermolecular etherification of mono- or polyhydric alcohols and acid-catalyzed ether cleavage in the presence of water may be improved if etherification or ether cleavage is...
6191315 Haze free polyether polyol compositions and a method for their preparation  
Most generally, the invention provides a method for making a neutralized polyether polyol, comprising the steps of a) Polymerizing one or more alkylene oxides in the presence of an alkaline...
6153794 Phosphine sulfide, a manufacturing process therefor and use thereof  
An organic compound which is basic and soluble in an organic solvent, does not have a problem in preparation or handling and exhibits catalytic activity as a basic compound, i.e., a phosphine...
6124506 Synthesis of glycol ethers  
This invention relates to a process for making glycol ethers by reacting an olefin oxide with an alcohol over a catalyst comprising a layered double hydroxide (LDH) clay with its layered structure...
6028229 Process for producing end-group-locked non-ionic tensides  
A process for the production of end-capped nonionic surfactants corresponding to formula (I): ##STR1## in which R 1 is an alkyl or alkenyl group containing 6 to 22 carbon atoms, n1 and n2...
6011071 Ether compound and process for producing the same  
To provide a novel ether compound which is useful such as an oil agent and a surfactant having the formula (I): R 1 --O--(AO) n --R 2 , wherein R 1 is an alpha-branched alkyl group or an alkyl...
5962749 Process for the removal of alkalinity in the manufacture of polyether polyols and the reuse of this alkalinity in the manufacture of polyether polyols  
This invention relates to a process for the purification of polyether polyols. This process enables the removal of residual alkaline metal catalyst from produced polyether polyol. It comprises a)...
5962748 Process for preparing low unsaturation polyether polyols  
Polyether polyols having reduced terminal unsaturation are prepared in a process comprising a first step comprising reacting propylene oxide with an initiator having at least two hydroxyl groups in...
5945568 Method for producing a glycol ether  
A method for producing a glycol ether, which can maintain a high catalyst-activity and high productivity, can control reaction-selectivity and which comprises reacting an alkylene oxide with an...
5914430 Process for producing ether compound  
Ether compounds, which are useful as solvents, cosmetics, detergents, lubricants, emulsifiers and so on, are produced by reacting (a) a hydroxy compound with a carbonyl compound of (b) a carbonyl...
5907067 Method of alkoxylating alcohols  
Alkoxylated alcohols containing no insoluble matter which would prevent the spray application of such materials are obtained by reacting an alcohol and epoxide in the presence of a catalytic amount...
5877245 Cross-linked reaction products of alkoxylated alcohols and alkylene glycols  
The reaction product of A) a linking compound of formula I R 1 (X) 3 (I) wherein each X group is a halogen or one X group is a halogen and two X...
5844115 Alkoxylation process  
Active hydrogen containing organic compounds, for example alcohols, thiols, phenols, thiophenols, carboxylic acids, amides and amines, are alkoxylated, for example, ethoxylated, using catalysts...
5840995 Precursor for alkoxylation catalysts  
A precursor for alkoxylation catalysts is prepared by reacting a chelating anionic or nonionic phase transfer catalyst with an alkaline earth metal compound in the presence of a compound which can...
5777178 Process for the preparation of polyoxyalkylene ether surfactant compositions  
The present invention is directed to a process for the preparation of polyoxyalkylene ether surfactant compositions comprising the steps of combining an admixture of alkoxylated alcohols with an...
5773525 Process of oxyalkylation employing solid, heterogeneous oxyalkylation catalysts  
Oligomeric polyoxyalkylene polyethers are prepared by oxyalkylating a low molecular weight hydroxyl-functional starter molecule with one or more alkylene oxides in the presence of a solid,...
5750796 Method of producing an alkylene oxide adduct of a compound having one or more active hydrogen  
A method of producing alkylene oxide adduct comprises reacting an organic compound having one or more active hydrogen (for example, higher alcohol, amine, etc.) with alkylene oxide in the presence...
5741947 Preparation of alkoxylation products in the presence of mixed hydroxides modified with additives  
Alkoxylation products are prepared by reacting compounds having active hydrogen atoms with C 2 -C 4 -alkylene oxides in the presence of a mixed hydroxide built up of polycations and modified with...
5731476 Poly ether preparation  
Polyethers of polyhydric compounds are prepared by the liquid phase reaction of polyhydric compound and the reaction being carried out with separate liquid phases comprised of a polar polyhydric...
5728796 Process to react epoxide-containing compounds and aliphatic alcohols  
A process reaction between: (1) a compound that contains one or more epoxide moieties per molecule, and (2) a compound that contains one or more primary aliphatic hydroxyl groups per molecule; is...
5686379 Alkoxylation catalyst, process for the preparation of the catalyst and process for preparing alkoxylate with the use of the catalyst  
An alkoxylation catalyst comprising metal oxides, having a basicity point expressed in pKa value from 9 to 25 and an acidity point expressed in the amount of ammonia gas adsorbed from 50 to 500...
5648558 Method for producing a polyoxyalkylene glycol and novel metallo-aluminosilicate  
A method for producing a polyoxyalkylene glycol by ring opening polymerization of a cyclic ether, wherein a zeolite (other than ZSM-5, ZSM-11 and Nu-5) is used as a catalyst.
Matches 51 - 100 out of 305 < 1 2 3 4 5 6 7 >