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7579311 |
No-strip process for producing bars comprising acyl-isethionate and free fatty acid, and having consumer desirable properties
The present invention relates to process for producing bars comprising 20 to 70% by wt. acyl isethionate and 15% to 35% free fatty acid and which is made by process where excess fatty acids made...
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6963004 |
Process for making directly esterified fatty acid isethionate using group 4 metal based, particularly zirconium based catalysts
The invention relates to a process for catalyzing a DEFI reaction using Group 4 metal based catalyst (according to IUPAC).
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6562874 |
Compositions comprising combination of DEFI and modified DEFI and methods of making
Composition may be prepared in a single DEFI reactor comprising mixtures of (1) DEFI (directly esterified fatty acyl isethionate) and (2) a compound produced by the reaction of (a) isethionate with...
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6303802 |
Process for the preparation of acyloxyalkanesulfonic acids
A fatty acid and/or an alkyl ester of a fatty acid and isethionic acid are allowed to react at a temperature of not more than 130° C. The present invention provides a process for preparing a fatty...
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6184399 |
Process for preparing a fatty acyl isethionate salt
A process is provided for preparing a fatty acyl isethionate salt of the formula R 1 C(O)OR 2 SO 3 M which comprises reacting at least one fatty acid of the formula R 1 C(O)OH with at least one...
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6069262 |
Fatty acid esters of hydroxyalkyl sulfonate salts and process for producing same
Compositions of matter comprising fatty acid esters of hydroxyalkyl sulfonate salts, in particular sodium cocoyl isethionate (SCI) and process for preparing same. The esters are useful for personal...
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5877140 |
Detergent compositions
The present invention relates to anionic compounds and their application in detergent compositions. The compounds have the dual benefits of surfactancy and suds suppression.
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5840941 |
Process for the preparation of flowable, anhydrous acyloxyalkanesulfonates and their use
Process for the preparation of flowable, anhydrous acyloxyalkanesulfonates and their use In the process of the invention, in the context of the esterification of fatty acids with...
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5777140 |
Process for the preparation of acyloxyalkanesulfonates having improved properties
Process for the preparation of acyloxyalkanesulfonates having improved properties The acyloxyalkanesulfonates are obtained in accordance with the invention by direct esterification in which at...
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5763632 |
Process for making isethionate ester salts
Fatty acid esters of isethionate salts are made by reacting ethylene oxide and a bisulfite salt in an aqueous solution while maintaining the pH in the range of from about 5.5 to about 6.5 and while...
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5739365 |
Method for preparing ammonium hydroxyalkyl sulfonates and ammonium alkanoyl alkyl sulfonates produced therefrom
A method is disclosed for preparing ammonium hydroxyalkyl sulfonate by a process of reacting ammonium bisulfite and alkylene oxide wherein the pH is maintained at a relatively low value throughout...
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5523432 |
Process for the production of quaternary ammonium salts of fatty acid hydroxyalkanesulfonic acids
Quaternary ammonium salts of fatty acid hydroxyalkanesulfonic acids are made by reacting a hydroxyalkanesulfonic acid of the formula (I): HO--(C n H 2n )--SO 3 H (I):...
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5519154 |
Ethoxylated ester surfactants and a process therefor
A process for producing ethoxylated ester surfactants in high yield has been discovered which employs no halogen-containing reactants or intermediates. Allyl alcohol is reacted with ethylene oxide...
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5473089 |
Process for the production of ammonium fatty acid hydroxyalkanesulfonates
Ammonium fatty acid hydroxyalkanesulfonates are made by a process in which (a) ammonium hydroxyalkanesulfonate corresponding to general formula (I): HO--(C n H 2n )--SO 3 NH 4 ...
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5434276 |
Process for making N-acyl taurides
A process for the preparation of an N-acyl tauride comprising reacting an aliphatic or alicyclic carboxylic acid having from 6 to 22 carbon atoms with a taurine salt having the formula: HNR 1 ...
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5393466 |
Fatty acid esters of polyalkoxylated isethionic acid
The present invention provides novel fatty acid esters of alkoxylated isethionic acid and compositions comprising these compounds.
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5384421 |
Process for making sodium acylisethionates
This invention discloses an improved method for making salts of acylisethionates using a direct esterification of a fatty acid with one or more salts of a selected hydroxyalkanesulfonic acid in the...
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5368776 |
Corrosion protection additives based on epoxides
A method for improving the corrosion inhibition of lubricating oils especially those of vegetable origin which comprises adding an efficient amount of the reaction product of an epoxidized fatty...
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5359127 |
Process for the preparation of acyloxyalkanesulfonates
Process for the preparation of acyloxyalkanesulfonates Process for the preparation of acyloxyalkanesulfonates of the formula ##STR1## where R denotes C 7 -C 21 -alkyl or C 7 -C 21 -alkenyl, A...
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5300665 |
Process for preparing fatty acid esters and amides of sulfonic acid salts
Fatty acid esters of hydroxyalkylsulfonates and fatty acid amides of aminoalkylsulfonates are prepared by heating an excess of the fatty acids with the sulfonate until the water of condensation is...
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5292915 |
Compounds containing carbonate groups and carbonyl groups and the preparation and use thereof
The invention relates to compounds containing carbonate groups and carbonyl groups and having the general formula ##STR1## in which R stands for a C 1 -C 4 -alkyl radical, an aryl radical, or a...
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5091560 |
Method for synthesizing acyloxycarboxylic acids
A method for synthesizing an acyloxycarboxylic acid by providing a reaction chamber, establishing sources of an α-hydroxycarboxylic acid and an acid chloride, and repeatedly contacting...
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5069828 |
Process for preparing benzenesulfonate salts
An improved process for preparing benzenesulfonate salts, such as 4-nonanoyloxybenzenesulfonic acid, sodium salt, from an appropriately substituted acid chloride or chloroformate and a...
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4985180 |
Process for preparing phenyl esters of substituted acids
Phenyl esters of substituted acids are prepared by a two-step process in which a phenol derivative is first treated with an acid halide to yield a phenyl ester intermediate, and the intermediate is...
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4948535 |
Process for the sulfation of partial esters of aliphatic polyhydric alcohols
A process for the sulfation of primary free OH groups of partial esters of aliphatic polyhydric alcohols with SO 3 is described. As solvent, use is made of at least one compound which has a...
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4883612 |
Preparation of para-acyloxybenzene sulfonates
p-Acyloxybenzene sulfonates, well suited for detergency applications, are facilely and rapidly prepared by acylating an alkali or alkaline earth metal, or ammonium p-phenol sulfonate, with an...
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4867916 |
Ester manufacture
Phenol sulphonate esters can be made in a known process by reacting an alkali metal phenol sulphonate salt with an acyl halide in a hydrocarbon solvent at elevated temperatures, but the use of...
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4537724 |
Alkanoyloxybenzenesulfonate salt production
An alkali metal or an alkaline earth metal salt of an acyloxybenzenesulfonate of the formula: ##STR1## wherein R is a hydrocarbyl group containing up to 30 carbon atoms selected from alkyl,...
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4536338 |
Process for manufacture of fatty acid esters of hydroxy sulfonates
A method is disclosed for preparing fatty acid isethionate soaps through direct esterification wherein the catalyst is quenched by an alkaline compound at the end of the esterification. Quenching...
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4515721 |
Process for the production of fatty acid esters of hydroxyalkyl sulfonate salts
Fatty acid esters of hydroxyalkyl sulfonates are prepared by heating an excess of the fatty acids with the sulfonate until the water of condensation is removed. The hot crude ester is then quenched...
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4435328 |
Preparation and use of alkali metal isethionates from ethionic acid
The invention discloses a process for the preparation of alkali metal isethionates from ethanol-derived ethionic acid and the use of these isethionates to prepare surface active fatty acyl...
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4405526 |
Process for producing directly esterified fatty acyl isethionate by a mixed zinc oxide-sulfonic acid catalyst
This invention discloses a method of producing directly esterified fatty acyl isethionate having a yellowness index less than about 6.0, which consists essentially of reacting a fatty acid with an...
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4301044 |
Biodegradable zwitterionic surfactant compounds
Zwitterionic surfactant compounds are made readily biodegradable in the environment by the inclusion of a biochemically and/or hydrolytically labile chemical linkage located between the cationic...
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3880897 |
Method of making acyl esters of hydroxy alkane sulfonates
Hydroxy alkane sulfonates are reacted with fatty acid halides by heating at reflux temperature in anhydrous dialkyl ketone having from 4 to 8 carbon atoms, then cooling below the boiling point and...
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3879309 |
Detergent bar made from mixed fatty acid derivatives
Mixtures of acyl isethionates of selected critical chain lengths exhibit superior lathering properties when incorporated into a detergent toilet bar.
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3431265 |
QUATERNARY AMMONIUM SALTS OF GLYCERYL SULFATES AND SULFONATES
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3429136 |
PROCESS FOR PREPARING HYDROXY SULFONATE ESTERS
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3424770 |
PROCESS FOR THE ADDITION OF BISULFITE TO COMPOUNDS CONTAINING DOUBLE BONDS
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3420858 |
PROCESS FOR THE PRODUCTION OF FATTY ACID ESTERS OF HYDROXY SULFONATES
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3420857 |
PROCESS FOR THE CONTINUOUS PRODUCTION OF FATTY ACID ESTERS OF HYDROXY SULFONATES
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3394155 |
Preparation of surface-active agents
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3383396 |
Preparation of surface-active agents using a dissolved zirconium catalyst
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3321498 |
Sulfonation of epoxy alkyl esters of tertiary monocarboxylic acids by means of bisulfite adducts of alkyl aldehydes and ketones
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3320292 |
Preparation of sulfonated fatty acid ester surface-active agents
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3167570 |
Process for the manufacture of esters of hydroxy-alkane-sulfo-acids
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3151136 |
Process of preparing fatty acid esters of hydroxyalkane sulfonic acids
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3097218 |
Sulfonates of hydroxyalkyl esters of tertiary alkanoic acids
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3093682 |
Hydroxyalkanal sulfonates
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3089882 |
Color stabilizing process for the manufacture of ester-type anionic surface active agents
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3067220 |
Hydroxyalkylester sulfonates
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