Patents
Patents for C07C 303 - Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides (11,473)
05/1995
05/09/1995US5414099 Acid catalyst; also making phenyl esters by reacting the amido acids either with phenol in presence of acid catalyst and boric acid or with phenol ester of lower molecular weight carboxylic acid in presence of basic catalyst
05/04/1995WO1995011957A1 Process for making isethionate ester salts
05/02/1995US5412136 Process for the preparation of alkyl sulfate powder having a high bulk density
04/1995
04/27/1995WO1995011230A1 Process for the preparation of an oxirane, aziridine or cyclopropane
04/25/1995US5409625 Azeotropic mixture of linear hydrofluorocarbon and HF
04/20/1995DE4335041A1 Process for the preparation of pale internal sulphofatty acid salts
04/13/1995WO1995009840A1 Method for the heat treatment and degassing of sulphonic acid
04/13/1995CA2168206A1 Method for the heat treatment and degassing of sulphonic acid
04/11/1995US5405727 N-(carbonyl, carbonimidoyl, carbonothioyl) sulfonamide charge control agents and toners and developers
04/06/1995WO1995009151A1 Acylated sulphonamides as insecticides and acaricides
04/05/1995EP0646575A1 Process for preparing fluorocarbon fluoroalkanesulfonates
04/05/1995EP0646557A1 Fluorination in tubular reactor system
04/05/1995EP0646163A1 Detergent composition having low skin irritability.
04/05/1995CA2131497A1 Fluorination in tubular reactor system
04/04/1995US5403957 Method for preparing N-fluorosulfonimides
03/1995
03/30/1995DE4333103A1 Process for the preparation of pale alpha-sulpho fatty acid lower-alkyl ester salts
03/29/1995EP0490970B1 New route of synthesis for protected nitrogen mustard prodrugs
03/23/1995WO1995007883A1 Synthesis of amido acids from carboxylic acids and lactams
03/23/1995WO1995007882A1 Synthesis of amido acids from carboxylic acid esters and amino acid salts
03/23/1995DE4331477A1 Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulphonic acid
03/23/1995CA2170487A1 Synthesis of amido acids from carboxylic acid esters and amino acid salts
03/22/1995EP0644185A1 Sulfonation of fatty acid esters
03/22/1995EP0643691A1 Process for preparing odourless fatty alcohol ether sulphates.
03/22/1995CN1100411A Preparation of C-substituted diethylentriamine
03/21/1995US5399756 Process for the production of liquid amine adducts of fluorine-containing amides
03/21/1995US5399748 Derivatives of aspartic acid and glutamic acid having anticholecystokinin activity
03/15/1995EP0642494A1 Process for the preparation of a surfactant composition comprising a secondary alkyl sulfate.
03/15/1995CN1027899C Process for preparing sulphonated dispersant from petroleum asphalt fractions
03/09/1995WO1995006632A1 Process for sulfonating internal olefins
03/08/1995EP0641773A1 Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid
03/08/1995EP0641755A1 Process for the hydrosulphination of olefins
03/02/1995WO1995006103A1 Process for preparing concentrated surfactant mixtures containing magnesium
03/01/1995EP0497849B1 Process for sulphonating unsaturated fatty acid glycerin esters
02/1995
02/28/1995US5393899 Salting out from acidic aqueous solution using inorganic salts
02/23/1995WO1995005361A1 METHOD OF OBTAINING A PHYSICALLY STABLE CRYSTALLINE η-MODIFICATION OF PARA-AMINOBENZENE SULPHANILAMIDE
02/22/1995CN1099027A Technique for synthetizing CLT acid using ortho-chlorotoluene
02/21/1995US5391786 Sulfonation of fatty acid low alkyl esters having a low concentration of oxo and unsaturated compounds
02/21/1995US5391784 Catalytically oxyalkylated fats or oils for fat-liquoring leathers after tanning
02/21/1995US5391783 Sulfonating fatty acid alkyl ester with gaseous sulfurtrioxide in liquid phase, neutralization with aqueous alkali metal hydroxide and bleaching with hydrogen peroxide containg an activator while controlling temperature
02/21/1995US5391782 Process for the production of highly concentrated pastes of α-sulfofatty acid alkyl ester alkali metal salts
02/09/1995WO1995004035A1 Liquid compositions containing a sulphosuccinic acid diester
02/09/1995WO1995004020A1 Process for the preparation of perfluoroalkyl iodide
02/08/1995EP0587774A4 Sulfonation process for viscous sulfonic acid.
02/07/1995US5387711 Process for preparing 3-sulfobenzoic acid and alkali metal salts thereof
02/07/1995US5387709 Bronchodilator agents, anticoagulants, vasodilation
02/07/1995US5387707 Route of synthesis for tertiary alkyl esters
02/07/1995US5387700 Reacting alcohol with sulfuryl chloride in toluene in presence of pyridine or triethylamine to form chlorosulfate, reacting with ammonia or amine in tetrahydrofuran to produce sulfamate
02/01/1995EP0636606A1 Process for the preparation of liquid amine-adducts of amides containing fluorinated groups
02/01/1995EP0563258B1 Process for the preparation of fluoroaliphatic aminocarboxylate surfactants
02/01/1995EP0539370B1 Process for sulfating unsaturated alcohols
01/1995
01/31/1995US5386042 Reacting 1,4-diamino-2,3-dihaloanthraquinone with boric acid in inert organic solvent, reacting product with aqueous sulfite solution
01/30/1995CA2128792A1 A process for the production of liquid amine adducts of fluorine-containing amides
01/25/1995CN1097733A Recrystallizing technology for leucine sulfonate
01/24/1995US5384422 Process for the production of light-colored α-sulfofatty acid alkyl ester alkali metal salt pastes
01/24/1995US5384421 Process for making sodium acylisethionates
01/24/1995US5384176 Phenolic acid sulfate esters for prevention of marine biofouling
01/19/1995WO1995001959A1 Method of producing alkyl sulphates with improved properties
01/17/1995US5382677 Process for the production of highly concentrated pastes of α-sulfofatty acid alkyl ester alkali metal salts
01/12/1995WO1995001467A1 Process for preparing perfluoroalkanesulfonyl fluorides
01/12/1995WO1995001331A1 Preparation of ammonium hydroxyalkyl/alkanoylalkyl sulfonates
01/12/1995CA2164604A1 Process for preparing perfluoroalkanesulfonyl fluorides
01/11/1995EP0633243A1 Process for the preparation of hydroxylic compounds of secundary or tertiary amines
01/11/1995EP0632802A1 New alkylating reagent, process for preparing the same and its use
01/11/1995CN1097191A Synthesizing method for fluorohydrocarbyl-sulfonate
01/10/1995US5380917 Reaction fo a phenol sulfonate with a benzoyl chloride in the presence of a base
01/10/1995US5380886 Process for the production of epoxide ring opening products having a defined residual epoxide oxygen content
01/04/1995CN1027261C Process for preparing lower alkyl ester-salt of alpha-aliphatic sulfonic acid with light colour detergent active
12/1994
12/22/1994WO1994029270A1 Novel sulfonate, process for producing the same, and bleaching composition containing the same
12/21/1994EP0629187A1 Direct-dyeing colouring agents for natural and synthetic fibres.
12/21/1994EP0576464B1 Process for producing highly concentrated fatty alcohol sulphate pastes
12/21/1994CN1096511A Process for the preparation of biphenyl derivatives
12/20/1994US5374770 Polymerization catalysts, surfactants, electrolytes
12/20/1994US5374405 Rotating fluidized bed reactor with electromagnetic radiation source
12/20/1994CA1333608C Hydrogenation of halonitroaromatic compounds
12/15/1994DE4319965A1 Method for producing a housing which has a screen against the emission of electrical magnetic radiation
12/14/1994EP0532557B1 Process for producing glycerin ether sulphates
12/13/1994CA1333488C Process for overbased petroleum oxidate
12/08/1994WO1994027939A1 Process for the manfuacture of linear hydrofluorocarbons containing end group hydrogen substituents and azeotropes thereof
12/07/1994EP0627414A1 Method for the preparation of alkanesulphonic acids
12/06/1994US5371281 Process for preparing alkali metal 3-sulfobenzoates
12/06/1994US5371251 Polyol polyether sulfosuccinates, a process for preparing them, and their use
12/06/1994US5371182 Self-doped conductive polyanilines, and method of preparing them
11/1994
11/30/1994EP0531359B1 Process for producing light-coloured pastes of alpha-sulpho fatty acid alkyl ester alkali metal salts
11/30/1994EP0483195B1 Process for preparing quaternary ammonium compounds
11/24/1994WO1994026701A1 Process for preparing ng-monoalkyl-l-arginine and related compounds
11/24/1994CA2162155A1 Process for preparing ng-monoalkyl-l-arginine and related compounds
11/23/1994EP0625183A1 METHOD OF PRODUCING PALE-COLOURED, COLOUR-STABLE ALKALI-METAL SALTS OF WASHING-ACTIVE $g(a)-SULPHONIC FATTY ACIDS
11/23/1994EP0625138A1 Novel amidine derivatives, their preparation and their use as mediaments with ltb-4 antagonistic effect
11/23/1994EP0446301B1 Preparation of biaryl compounds
11/23/1994CN1026696C Method of recovering epoxy chloropropane and toluene
11/22/1994US5366597 Process for the preparation of perfluorobutylsulphonyl fluoride
11/17/1994EP0624152A1 Process for preparing ketone enantiomer.
11/17/1994DE4316214A1 Sulphonated diesters
11/15/1994US5364960 Process for preparing sulfonated paraffins with a larger content of polysulfonated species
11/15/1994US5364507 Process for the production of perfluoroalkylsulphonyl fluorides and electrodes for performance of the process
11/09/1994EP0623593A2 Process for neutralising the acid form of anionic surfactant, agglomerates and detergent thereby obtained
10/1994
10/27/1994WO1994024245A1 Purification of secondary (2, 3) alkyl sulfate surfactants
10/27/1994WO1994024098A1 Ξ-fluorosulphonimides, method of preparing them and their use as fluorination agents
10/27/1994CA2160994A1 N-fluorosulphonimides, method of preparing them, and their use as fluorination agents
10/26/1994EP0621266A1 Sterically hindered phenols and their use for the stabilisation of polyamide fibres
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