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| Number | Title | Issue Date |
| 7541496 | Process for preparing dihydroxytrialkylammonium halides and products thereof Compositions and methods for making compositions including a quaternary trialkylammonium halide compound are described. Compositions follow the formula: wherein the R1 groups are each individually selected from a... | 06/02/2009 |
| 7342136 | Process of making long chain internal fatty tertiary amines A process for preparing long chain internal fatty tertiary amines, quaternary amines and amine oxides via the selection of long chain internal olefins. ... | 03/11/2008 |
| 7326814 | Minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophorous acid The present invention relates to a process for the minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophosphorous acid, which leads to the formation of an odor stable product. ... | 02/05/2008 |
| 7268256 | Method of purifying quaternary alkyl ammonium salt and quaternary alkyl ammonium salt Provided is a method for purifying a quaternary alkyl ammonium salt enabling the obtainment of a particulate quaternary alkyl ammonium salt having a low water content at a high yield which is suitably used as an electrolyte in an electrolytic solution. The me... | 09/11/2007 |
| 7183434 | Process for the continuous quaternization of tertiary amines with an alkyl halide The present invention relates to a continuous process for the quaternization of tertiary amines with an alkyl halide. The process is performed at a temperature between 50° C. and 140° C. by reacting a tertiary amine and an alkyl halide in a tubular reactor at a pr... | 02/27/2007 |
| 7105631 | Preparation of alkylated N- or amino, ammonium or spirobicyclic ammonium group-containing, crosslinked polymers Process for the preparation of alkylated N- or amino, ammonium or spirobicyclic ammonium group-containing, crosslinked polymer gels, which is characterized in that a) in the crosslinkage step an aqueous solution of a polymer obtained by polymerization o... | 09/12/2006 |
| 7056855 | Liquid tetrabutyl ammonium phenolate formulation A process for preparing a formulation containing tetrabutylammonium phenolate and phenol is disclosed. The process entails combining a solution of tetrabutylammonium bromide in phenol with a solution of sodium phenolate to form a mixture, excess phenol is removed by... | 06/06/2006 |
| 7005548 | Process for preparing quaternary ammonium tribromides The present invention relates to an economical and environmentally clean process for the preparation of high quality quaternary ammonium tribromides by oxidation of bromide (Br−) in an acidic medium by a biomimetic process involving transition metal ion... | 02/28/2006 |
| 7001973 | Catalyst and process for preparing low-viscosity and color-reduced polyisocyanates containing isocyanurate groups A low-viscosity polyisocyanate of reduced color, containing isocyanurate groups is prepared by partially trimerizing an aliphatic and/or cycloaliphatic diisocyanate in the presence of 0.02 to 2% weight, based on the weight of the diisocyanate starting material, of a... | 02/21/2006 |
| 6992222 | Process for the preparation of quaternary salt phenolate solutions The preparation of quaternary salt phenolate solutions is disclosed. The preparation entails mixing an aqueous hydroxide-containing solution with an organic phase that contains phenol and quaternary salt, distilling off the water and precipitating and filtering off ... | 01/31/2006 |
| 6967258 | Production of quaternary ammonium salt of hydroxycarboxylic acid and quaternary ammonium salt of inorganic acid A quaternary ammonium hydroxycarboxylate is produced by quaternizing a tertiary amine with a hydroxycarboxylic ester represented by the following Formula 1: wherein R1 to R3 are as defined in the ... | 11/22/2005 |
| 6911488 | Physical methods of dispersing characteristic use particles and compositions thereof The present invention provides compositions that are capable of being dispersed in a target medium. The compositions include characteristic use particles entrapped within a physical entrapment phase, wherein the physical entrapment phase is dispersible in the target... | 06/28/2005 |
| 6900313 | Chiral ionic liquids The invention relates to chiral ionic liquids of the general formula [A]n+[Y]n−, whereby n=1 or 2, the anion [Y]n− is the anion of an organic or inorganic proton acid and the cation [A]+ ... | 05/31/2005 |
| 6794543 | Method for producing arylpoly(oxalkyl)-benzyldimethyl-ammonium derivatives The invention provides a process for preparing arylpoly(oxalkyl)benzyl-dimethylammonium derivatives of the formula (1) which comprises reacting compounds of the formulae (2) and (3) ... | 09/21/2004 |
| 6790985 | Phosphonium salts and processes for production of and uses for the same, and phosphines deriving the same and processes for production of the phosphines Phosphonium salts represented by the general formula (I) wherein R1 and R2 each represents a phenyl group which may be substituted by a lower alkyl group, R3 represents a phenylene group ... | 09/14/2004 |
| 6784317 | Production of quaternary ammonium salt of hydroxycarboxylic acid and quarternary ammonium salt of inorganic acid A quaternary ammonium hydroxycarboxylate is produced by quaternizing a tertiary amine with a hydroxycarboxylic ester represented by the following Formula 1: wherein R1 to R3 are as defined in the di... | 08/31/2004 |
| 6740781 | Process for separating reaction mixtures and recycling quaternary salts and bases A process for the removal and recovery of quaternary salt (A) and base (D) from a reaction mixture is disclosed. The reaction mixture resulting from oxidative direct carbonylation contains in addition to (A) and (D), at least one hydroxyaromatic compound (B) and at ... | 05/25/2004 |
| 6734325 | Process for the separation of reaction mixtures and the recirculation of quaternary salts A process for the separation and recycling of catalyst components from a chemical reaction mixture is disclosed. The process entails at least one extraction step. ... | 05/11/2004 |
| 6586632 | Preparation of quaternary ammonium compounds Quaternary ammonium dihydrogen phosphate or bisulfate salts are made by a process comprising the steps of: (1) forming a first mixture by contacting a quaternary ammonium halide with: (a) a water-insoluble organic solvent capable of forming a ternary azeo... | 07/01/2003 |
| 6583234 | Process for preparing waterfastness additive Disclosed is a process which comprises (a) reacting allyl bromide with diethyl amine in a molar ratio of at least about 1 mole of allyl bromide per about 1.15 moles of diethyl amine and in a molar ratio of no more than about 1 mole of allyl bromide per ab... | 06/24/2003 |
| 6576684 | Thermal- and photoinitiated radical polymerization in the presence of an addition fragmentation agent Disclosed are compositions from which radically initiated oligomers/polymers having a controlled molecular weight, low polydispersity and a vinyl or dienyl end group are prepared. Further subjects of the invention are a process for controlled radical ... | 06/10/2003 |
| 6573405 | Ionic liquids An ionic liquid having a melting point of no more than 60° C., formed by the reaction of a quaternary ammonium compound of the formula: R1 R2 R3 R4 N+ X- (I) or a mixture of two or more therof; wit... | 06/03/2003 |
| 6541649 | Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules The present invention provides processes for the synthesis of novel cationic amphiphiles capable of facilitating transport of biologically active molecules into cells wherein the said amphiphiles contain N-hydroxyalkyl group and have at least one hydroxya... | 04/01/2003 |
| 6521782 | Method for making aqueous solutions of unsaturated quaternary ammonium salts The present invention relates to a process for the manufacture of aqueous solutions of unsaturated quaternary ammonium salts. The salts can correspond to the following formula (I): ##STR1## in which R represents a methyl or benzyl radical, by reaction, in... | 02/18/2003 |
| 6465419 | Esters derived from alkanolamines, dicarboxylic acids and fatty alcohols and the cationic surfactants obtainable therefrom Esters derived from alkanolamines, dicarboxylic acids and fatty alcohols and the cationic surfactants obtainable therefrom. Novel alkanolamine esters based on the esterification reaction of alkanolarnines, optionally alkoxylated, dicarboxylic acids and fatty ... | 10/15/2002 |
| 6444846 | Process for preparing tetrafluoroborate salt and intermediates thereof There is provided a process for preparing tetraalkyl ammonium halide utilizing a catalytic amount of acetonitrile in a reaction under pressure and at an elevated temperature of an alkyl halide and a trialkyl halide and in which tetrafluoroborate can be su... | 09/03/2002 |
| 6414191 | Method for the continuous production of methoxyamine hydrochloride The present invention relates to a process for the continuous preparation of methoxyamine hydrochloride by cleavage of acetone oxime methyl ether by means of hydrogen chloride and water, wherein the cleavage is carried out in a reaction column having less... | 07/02/2002 |
| 6414170 | Preparation of cationic surfactants containing ester group in molecules The present invention relates to a method for preparing a cationic surfactant in which physical chemical characteristics such as softness, antistatic properties, etc. as well as biodegradability are quite excellent due to having an ester group and a hydro... | 07/02/2002 |
| 6379294 | Process for preparing esterquats A process for preparing an esterquat composition comprising (a) reacting a tertiary amine according to formula I: ##STR1## wherein R1 represents a C3 -C6 hydrocarbon group, R2 represents a C3 -C6... | 04/30/2002 |
| 6333433 | Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkl group for intracellular delivery of biologically active molecules The present invention provides processes for the synthesis of novel cationic amphiphiles capable of facilitating transport of biologically active molecules into cells wherein the said amphiphiles contain N-hydroxyalkyl group and have at least one hydroxya... | 12/25/2001 |
| 6268534 | Process for the synthesis of N,N-Dioleyl-N,N-Dimethylammonium Chloride A novel process for the synthesis of N,N-dioleyl-N,N-dimethylammonium chloride (DODAC) is described.... | 07/31/2001 |
| 6235914 | Amine and quaternary ammonium compounds made from ketones and aldehydes, and compositions containing them A process for making a tertiary amine ester of the following formula (I): ##STR1## the process comprising: (a) reacting a ketone or an aldehyde having the formula ##STR2## with a glycol to form a ketal or an acetal; (b) reacting the ketal or the acetal with a... | 05/22/2001 |
| 6194606 | Intermediates The present invention provides compounds having the formula: ##STR1## in which R is hydrogen or C1 -C4 alkyl, preferably hydrogen and Y is hydrogen, C1 -C4 alkyl, C1 -C4 alkoxy, CF3, ... | 02/27/2001 |
| 6087303 | Quaternary ammonium carboxylate and borate compositions and preparation thereof Wood preservative systems comprising (a) a biocidal effective amount of (i) at least one di C8 -C12 alkyl quaternary ammonium carboxylate having the formula ##STR1## wherein R1 and R2 are a C8 -C... | 07/11/2000 |
| 6084131 | Process for the preparation of protected dihydroxypropyl trialkylammonium salts and derivatives thereof A process for the preparation of protected dihydroxypropyl trialkylammonium salts, particularly in chiral form is described. In particular, a process for the preparation of (2,2-dimethyl-1,3-dioxolan-4-ylmethyl)trialkylammonium salts, particularly in... | 07/04/2000 |
| 6031137 | Stable aromatic amine composition, a process for preparing color stable aromatic amines, and the production of light colored aromatic amine-based polyether polyols This invention relates to stable aromatic amine compositions. These compositions comprise a) an organic compound containing at least one carboxylic acid group, and b) an aromatic amine. This invention also relates to a process for stabilizing the color of... | 02/29/2000 |
| 5962709 | Process for the aftertreatment of betaines and amphoteric surfactants Process for the aftertreatment of betaine and amphoteric surfactants comprising adjusting the pH to the range of from 11 to 14 by addition of an alkali metal hydroxide, followed by a thermal aftertreatment if the surfactant contains dichloroacetic acid re... | 10/05/1999 |
| 5929280 | Process for the preparation of aqueous solutions of tetraalkylammonium hydroxides There is provided a simple method of producing in a good yield a tetraalkylammonium hydroxide aqueous solution in which the content of metal ions such as alkali metal ions is reduced to an extremely low level. High-purity trialkylamine and high-purity alkyl ch... | 07/27/1999 |
| 5919980 | Recovery and reuse of amphoteric surfactants from aqueous solutions Improved surfactant recovery for recycle and reuse upon ultrafiltration of a surfactant-containing aqueous solution can be obtained using a betaine or amide oxide amphoteric surfactant in the aqueous cleaner/contaminant solution. The surfactant passes thr... | 07/06/1999 |
| 5880299 | Esterquats The invention relates to new esterquats which are obtained by reacting trialkanolamines with a mixture of fatty acids and dicarboxylic acids and quaternizing the resulting esters in known manner, optionally after alkoxylation. Cationic surfactants are obt... | 03/09/1999 |
