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WO/1994/015910A1 |
The invention concerns pastes of di-salt of alpha-sulphonic fatty acid which are free-flowing without the need for additives to improve the flow properties and in which the di-salt is the sole surfactant. Such pastes can be produced by s...
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WO/1994/013632A1 |
A process for preparing a surfactant composition comprising a secondary (C8 to C22) alkyl sulphate, which process comprises: a) sulphating a (C8 to C22) olefin and/or a (C8 to C22) secondary alcohol, optionally containing a primary alcoh...
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WO/1994/013462A1 |
p-sulfoxy cinnamic acid isolated from methanolic extracts of the eelgrass Zostera marina having significant antifouling aquatic properties. p-sulfoxy cinnamic acid was synthesized in the laboratory from p-coumaric acid, and antifouling a...
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WO/1994/013633A1 |
A method of preparing PAS acid is disclosed which involves sulphating an alcohol feedstock and incorporating in the reaction product a stabilising agent which comprises an (hydroxy) alkylene oxide residue.
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WO/1994/012471A1 |
The invention concerns the production of sulphited fats with a reduced free-bisulphite content by blowing unsaturated fats using prior art methods, sulphiting with sodium metabisulphite and finally binding unreacted hydrogen sulfite as s...
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WO/1994/012472A1 |
Polyhydroxy fatty acid amide nonionic surfactants are converted in high yields to their sulfated analog surfactants using an SO3/pyridine complex as a sulfating agent. Thus, C12-C18N-methyl glucamide is sulfated in methylene chloride or ...
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WO/1994/011486A1 |
The invention relates to a process for improving the degree of purity and especially the quality of colour and odour in valuable materials and mixtures in the field of wetting, washing and/or cleaning agents. In the process, a substance ...
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WO/1994/008955A1 |
The present invention relates to a process of preparing N-benzenesulfonimides comprising reacting an alkali metal salt of a sulfonimide with fluorine in the presence of water or water/organic solvent mixtures. N-fluorosulfonimides are us...
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WO/1994/007976A1 |
Aqueous cleaning agents for the human skin containing sulphuration products of triglycerides of saturated fatty acids with 8 to 22 C atoms have a good cleaning action and at the same time grease restoring properties. They are particularl...
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WO/1994/006760A1 |
Levogyral isomers of alkylammonium (amino-3 phenyl)-1 ethanesulphonate derivatives of formula (I) in which R+ denotes a tetraalkylammonium or trialkylphenylalkylammonium residue. The invention also concerns the preparation and use of sai...
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WO/1994/006778A1 |
The sulphonyl ureas of formula (I) and their salts are suitable as selective herbicides to combat weeds in the cultivation of useful plants. The intermediate products of formulae (II) and (IV) may be used for their production.
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WO/1994/006759A1 |
An improved, no-bleach process for the production of sulfonated fatty acid alkyl ester surfactants containing sulfonated fatty acid alkyl esters and less than 10 % of sulfonated fatty acid disalt, fatty acid salt (soap), and fatty acid a...
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WO/1994/004490A1 |
Sulphonates are prepared by the neutralisation of a sulphonic acid with a basic hydroxide or oxide. The process requires the staged addition of sulphonic acid to a reaction mixture comprising basic hydroxide or oxide dispersed in a water...
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WO/1994/003423A1 |
The colour of surfactants can be improved by bleaching them with peroxygen compounds in the presence of bleach boosters selected from the group comprising (a) double-layer hydroxides and (b) triacetin.
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WO/1994/001397A1 |
The invention concerns the manufacture of pastes of salts of alpha-sulphonic fatty acids, with a fatty-acid content to 35 of 50 % by wt., by reacting with a sulphonating agent mixtures of (a) fatty acids of the formula (I): R1COOH, in wh...
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WO/1993/025646A1 |
There is disclosed a detergent composition containing, as an essential ingredient, at least one member selected from three types of $g(a)-sulfo-fatty acid derivatives as represented by formulas (1), (2) and (3): where R¿1?, R¿2?, R¿3?...
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WO/1993/024453A1 |
Odourless fatty alcohol ether sulphates can be produced by ethoxylating, sulphating then neutralizing technical fatty alcohol sections whose content of volatile compounds having a boiling point below 235 °C in normal conditions amounts ...
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WO/1993/024452A1 |
This invention relates to a process for preparing a surfactant composition comprising a secondary (C¿8? to C¿22?) alkyl sulfate, which process comprises: a) sulfating a (C¿8? to C¿22?) olefin and/or a (C¿8? to C¿22?) secondary alco...
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WO/1993/019043A1 |
An alkylating reagent having formula (I) is disclosed, as well as a process for preparing the same and its use.
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WO/1993/017992A1 |
A process is provided for sulfonating an organic reactant which, upon sulfonation, produces a viscous sulfonation reaction product having a viscosity substantially greater than 1,500 centipoises at a reaction temperature wherein the sulf...
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WO/1993/017999A1 |
A new process is disclosed for preparing N-(2-nitro-4-aminophenyl)-aminoalkane sulfonic acids having formula (I), in which R?1¿, R?2¿ and R?3¿ stand for hydrogen, alkyl groups with 1 to 4 C atoms or hydroxyalkyl groups with 2 to 4 C a...
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WO/1993/016036A1 |
Compounds of formula (I), which are defined in more detail in the description, can be prepared by conventional methods and are used for therapeutic purposes in the usual galenical preparations.
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WO/1993/015170A1 |
The invention concerns a method of producing pale-coloured, colour-stable alkali-metal salts of washing-active $g(a)-sulphonic fatty acids by a) reacting $g(a)-sulphonic fatty-acid ester salts, or mixtures thereof, in an aqueous medium w...
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WO/1993/014065A1 |
Compounds of formula (I) wherein R1 is hydrogen, alkyl, halogen, nitro or alkyl or aromatic sulfonyl, x is an integer from 1 to 4, when x is greater than 1, The R1 substituents on any one or all of positions 2, 3, 5 and 6 and can be the ...
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WO/1993/013112A1 |
The invention concerns a method of bleaching alkyl and/or alkenyl glycosides with peroxy compounds to give a pale colour, the bleaching reaction being carried out in the presence of stabilizers selected from the group comprising aluminiu...
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WO/1993/013113A1 |
The invention concerns a method of reducing the colour of surface-active compounds by carrying out a bleaching reaction with peroxy compounds in the presence of bleach boosters selected from the group consisting of alkaline-earth ions, z...
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WO/1993/012062A1 |
A novel multi-step process for preparing the (4S_-enantiomer of 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone in a highly-optically pure form is disclosed. The process involves (1) first esterifying 4-(3,4-dichlorophenyl)-4-keto...
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WO/1993/012215A1 |
Described is a method of producing triglycerides with hydrophilic properties from saturated and/or unsatured triglycerides and/or oils containing air-oxidized triglycerides of formula (I), in which R?1¿CO, R?2¿CO and R?3¿CO, independe...
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WO/1993/010084A1 |
Described is a method of preparing sulphated fatty-acid alkanolamides in the form of light-coloured, freely flowing pastes by reacting fatty-acid alkanolamides continuously with gaseous sulphur trioxide and subsequently neutralizing the ...
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WO/1993/009091A1 |
The invention concerns the preparation of light-coloured alkenyl sulphate pastes by reacting with gaseous sulphur trioxide lauric alcohol derivatives including: a) unsaturated fatty alcohols of the formula (I): R?1¿-OH, in which R?1¿ i...
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WO/1993/006081A1 |
Described is a method of producing neutral-tasting pastes, suitable for use in the manufacture of toothpaste for instance, of alkyl ether sulphates in glycerin by distilling off water from mixtures of aqueous alkyl ether sulphate pastes ...
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WO/1993/005013A1 |
A process for improving dark-colored sulf(on)ated surfactant compositions, and particularly alpha-sulfo fatty acid alkyl ester compositions, without the need for bleaching. The process comprises the steps of (1) forming a solution of a s...
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WO/1993/003019A1 |
A compound having structural formula (I), wherein R is hydrogen, C1-C4 alkyl, C1-C4 haloalkyl, formyl, C2-C6 alkanoyl, C3-C4 alkenyl or C3-C4 alkynyl, or alkali metal; X is C1-C4 alkyl, C1-C8 alkoxy, cyano, or halogen; Y is hydrogen, hal...
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WO/1993/001523A1 |
The invention provides a novel and economic method for the production of an activated propene from a malonitrile dimer which comprises reacting a compound of formula (I) with a nucleophile D to provide a compound of formula (II) wherein ...
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WO/1993/000328A1 |
A method for obtaining aromatic sulphochlorides consists in reacting sulphur trioxide with hydrogen chloride so as to obtain a mixture containing chlorosulphonic acid, as well as non-reacted sulphur trioxide and hydrogen chloride. The sa...
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WO/1992/021652A1 |
A process for the preparation of a purified monomer is disclosed which comprises the steps of reacting an impure monomer (A) wherein R1 and R2 are independently hydrogen or alkyl groups containing from 1 to about 6 carbon atoms, with (B)...
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WO/1992/020711A2 |
The invention concerns LHRH antagonists of the general formula (I), in which X is an acyl group, X�1? is a D-Nal, X�2? is D-(4-Cl)-Phe, X�3? is D-(3)-Pal, X�6? is D-Cit or D-Neu, X�8? is L-Arg or L-Neu, at least one of the grou...
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WO/1992/020694A1 |
The use of magnesium oxide of specified, low, reactivity in a process for the production of overbased magnesium sulphonates, together with the introduction of water and an alcohol, into the reaction mixture during carbonation, makes it p...
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WO/1992/019666A1 |
The invention discloses self-doped conductive polyanilines and a method for preparing them. The benzene and/or quinone rings of these polyanilines bear functionalized grafts, or substituants, corresponding to the formula: -A-Z where A is...
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WO/1992/019590A1 |
To prepare anionic tensides of the glycerin ether sulphate type, glycerin ethers of formula (I), wherein R?1� stands for an alkyl residue with 4 to 22 carbon atoms, R?2� and R?3� stand for hydrogen or an alkyl residue with 4 to 22 ...
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WO/1992/019577A1 |
Epoxy compounds can be subject to partial ring opening if they are caused to react in the presence of medium-strong acids from the group formed by phosphoric acid, phosphorous acid and sub-phosphorous acid with nucleophiles and any exces...
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WO/1992/018467A1 |
The description relates to novel cyanophenoxynaphthyl oxycarboxylic acid derivatives of formula (I) in which R?1�, R?2�, R?3�, R?4� and R?5� have the meanings given in the specification and several processes and novel semi-fini...
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WO/1992/016606A1 |
In a process for producing fatty alcohol sulphate pastes, a mixture containing a) unsaturated fatty alcohols of formula R?1�-OH , wherein R?1� stands for a linear unsaturated hydrocarbon residue containing 16 to 22 carbon atoms and 1...
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WO/1992/016503A1 |
Compounds have the formula (I), in which R�1? stands for a hydroxy group; R�2? and R�3?, that can be the same or different, stand for a hydrogen atom or a straight- or branched-chain alkyl residue with 1 to 6 C atoms; X stands for ...
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WO/1992/016502A1 |
An improved process for preparing alkanoyloxyacetyloxybenzenesulfonate salts in which phenyl esters of alkanoyloxyacetic acids (alkanoyloxyacetyloxybenzenes) are sulfonated to yield novel alkanoyloxyacetyloxybenzenesulfonic acids which, ...
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WO/1992/015556A1 |
Described is a new method of preparing benzoyloxybenzenesulphonates from oxybenzenesulphonates and benzoic acid chlorides. The preparation is carried out in a solvent mixture consisting of water and an organic solvent chosen from the gro...
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WO/1992/014700A1 |
A process allows 4-alkyl(C�1?-C�4?)-sulfonyl-1-alkyl-2-chlorobenzenes to be produced with high yields and selectivity. Chlorides of p-alkylbenzene sulfonic acid are selectively chlorinated with gaseous chlorine in the presence of a c...
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WO/1992/014738A1 |
This invention is a process for converting hydrocarbonaceous feeds, particularly lower alkanes, into their corresponding esters and optionally into various intermediates (such as alcohols) and optionally into liquid hydrocarbons. The hyd...
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WO/1992/012125A1 |
A process for preparing sulphonyl halides of formula: RCY(Z)SO2X where X, Y and Z are halo and R is alkyl, halo, haloalkyl or aryl wherein a sulphenyl halide of formula RCY(Z)SX is subjected to oxidation. The sulphonyl halides are useful...
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WO/1992/010470A1 |
A process for the synthesis of the fluorochemical compound having the formula: RfSO2N(CHR2-CHR2COO-)R1N+(R)2H, wherein Rf is a fluoraliphatic radical containing 3 to 20 carbon atoms. The synthesis involves reaction of compounds of formul...
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