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7598421 Materials for the delivery of biologically-active material to cells  
The invention provides a lipid of general formula (I) or (II): wherein X 1 , X 2 and R 1 to R 5 are as defined herein. Such lipids are used to form complexes with a biologically-active...
6593376 Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups on a di-,oligo- or polyene base  
A process for preparing amphiphilic compounds having at least two hydrophilic and at least two hydrophobic groups by reacting an olefinic substrate having at least two double bonds with an organic...
6559243 Glyoxylic compound comprising one or more active ingredient  
The present invention relates to glyoxylic compound comprising one or more active ingredient. By the present invention, a delayed release of the active ingredient is provided upon contact of the...
6365774 Carboxylated surfactants  
The present invention relates to a (a) dicarboxylated surfactant, (b) a method for its preparation and (c) application in industrial and personal care applications. The compounds of the present...
6326514 Process for the preparation of ether carboxylic acids with low residual alcohol content  
The invention provides a process for the preparation of ether carboxylic acids or alkali metal or ammonium salts thereof with low residual alcohol content, which comprises firstly converting a...
6294693 Production process for ether carboxylate salt  
The present invention provides a production process for an ether carboxylate salt in which process the ether carboxylate salt is obtainable with a good yield, and the amount of expensive catalyst,...
6127498 Modified hydrogenated polymers  
Hydrogenated fluoromodified polymers obtainable by reaction among hydrogenated polymers and the modifier having a polyether structure: RfO(CF 2 CF 2 O) m (CF 2 O) n --CF 2 --A q --T p ...
6046292 Polymerizable mesophases based on substituted unsaturated carboxylic acids  
Mesogens are provided based on substituted unsaturated carboxylic acids such as acrylic and methacrylic acid. Substitution of a variety of hydrophobic tails onto the carboxylic acid or acid...
5840973 Process for producing a polyoxyalkylenecarboxylic acid  
A process for producing a polyoxyalkylenecarboxylic acid which comprises: (A) a step of obtaining a salt of a polyoxyalkylenecarboxylic acid by reacting a polyoxyalkylene compound having hydroxyl...
5801277 Solid catalyst for etherification reaction and production process for ether compound using this catalyst  
The present invention provides: a solid catalyst which enables a person to simply and efficiently carry out an etherification reaction; and a process by which an ether compound is simply and...
5696288 Process for the preparation of 2,2'-oxydisuccinate  
A process for the preparation of 2,2'-oxydisuccinate from undissolved solid, powdered or comminuted maleate and malate species added to a slurry of alkaline earth metal hydroxide is disclosed which...
5585517 Process for reacting a perfluoroalkl iodide with an olefinic compound  
A novel process is described for reacting a perfluoroalkyl iodide with an olefinic compound, which comprises carrying out a free-radical addition reaction of the perfluoroalkyl iodide to the olefin...
5541037 Anti-reflective material and patterning method  
The invention provides an anti-reflective material comprising a salt of a carboxyl-terminated fluorinated alkyl polyether compound with a water-soluble amino compound. A resist pattern is defined...
5523479 Process for the preparation of ethercarboxylic acids  
A process for the preparation of carboxylic acids which contain ether groups by the catalytically accelerated addition of alcoholic hydroxyl groups from mono- or polyhydric alcohols to...
5506309 Perfluorinates polyethers  
This invention pertains to perfluoropolyethers and perhalogenated chlorofluoropolyethers that can be prepared by fluorinating addition polymers made by polymerizing epoxides.
5466868 Process for the preparation of an enriched 2,2'-oxydisuccinate reaction mixture by removal of calcium malate  
A process for the preparation of enriched reaction mixtures containing 2,2'-oxydisuccinate (alkaline earth metal salts) is disclosed, by pH reduction and removal of alkaline earth metal malates.
5466875 Process for the purification of alkaline earth metal salts of 2,2'-oxydisuccinate by acidification  
A process for the purification and recovery of 2,2'-oxydisuccinate moieities from a reaction mixture containing maleate, malate, fumarate, and alkaline earth metal is disclosed which reduces the pH...
5442109 Preparation of oxadimethacrylic acid  
At least 99% pure 2,2'[oxybis (methylene)]bis-2-propenoic acid CH 2 C(COOH)CH 2 --O--CH 2 C(COOH)CH 2 is prepared by hydrolyzing an ester thereof in an aqueous basic medium and then...
5393917 Isolation and purification of oxadimethacrylics  
A process for isolating and purifying oxadimethacrylics of the general formula I CH 2 C(A)CH 2 --O--CH 2 C(B)CH 2 I where A and B are selected from the group consisting of --COOR 1 ,...
5359128 Malic acid derivatives and compositions for the treatment of psoriasis  
The invention comprises compositions and methods for the treatment of psoriasis. The compositions comprise compounds of the formula: ##STR1##
5354879 Optically active intermediate and method for production thereof  
The present invention relates to a synthetic method of optically active starting materials for various medicaments, which are represented by Formula (I): ##STR1## wherein R 1 is hydrogen or...
5176850 Substituted glycerol compounds  
The present invention provides a composition in contact with a corrodable metal surface, comprising a functional fluid and, as corrosion inhibitor, a compound having the formula 1A ##STR1## as well...
5171886 Preparation of 2,2'-oxydisuccinate  
There is disclosed herein an improved processes for the preparation of oxydisuccinate by reacting in an alkaline reaction medium the salts of maleic acid and malic acid in the presence of a calcium...
5132455 Method for synthesizing perfluorinated ether compounds via polyesters  
This invention relates to perfluoroether compounds, and to a general method for creating such compounds. It has been found that such compounds may be created by a three-step method which may be...
5099042 Synthesis of tetrafunctional polyethers and compositions formed therefrom  
Polymers are produced from 4 and 5 member cyclic ethers, which polymers have hydroxyl functionalities of 4. The cyclic ethers are polymerized with an acid catalyst and a tetraol initiator having...
5097067 Carboxy acids derived from heteroatom containing 3,3-bis-perfluoroalkyl oxetanes  
Heteroatom containing R f -neopentyl compounds having formula III or IV ##STR1## wherein R f is a straight chain perfluoroalkyl of 1 to 18 carbon atoms, E is branched or straight chain alkylene...
5091113 Corrosion inhibiting composition  
when n is an integer from 1 to 20 at least one group R 4 is CO 2 H.
5075336 Alkaline earth metal salts of oxa polyacid compounds  
Compounds of general formula ##STR1## in which: M is an alkaline earth metal, R 1 , R 2 , R 3 , R 4 , R 5 and i being defined in the description. Medicaments.
5068421 Chemical process  
There is disclosed herein improved processes for the preparation of ether carboxylates by reacting in an alkaline reaction medium the salts of maleic acid and malic acid in the presence of a...
5068420 Process for preparing ether carboxylate builders  
There is disclosed a method for purifying the product of a calcium catalyzed reaction, in alkaline reaction medium of salts of maleic acid a hydroxy acid wherein impurities are removed by single...
5030751 Process for the preparation of mixed 2,2'-oxydisuccinate/carboxymethyloxysuccinate  
A process for the preparation of mixed salts of oxydissuccinate/carboxymethyloxysuccinate is disclosed, which process comprises adding glycolic acid to an aqueous mixture obtained from a...
5028723 Process for preparing 1-hydroxy-3-oxa-1,2,4,5-pentane tetracarboxylic acid/3,6-dioxa-1,2,4,5,7,8- octane hexacarboxylic acid mixtures  
There is disclosed an improved process for preparing 1-hydroxy-3-oxa-1,2,4,5-pentane tetracarboxylic acid and 3,6-dioxa-1,2,4,5,7,8-octane hexacarboxylic acid wherein the reaction mixture has a...
5013482 Corrosion inhibition  
The present invention provides a composition in contact with a corrodable metal surface, comprising a functional fluid and, as corrosion inhibitor, a compound having the formula I: ##STR1## as well...
5001245 Process for producing metallic salt of ethercarboxylic acid  
A preparation of metallic salt of ethercarboxylic acid in a pure form by restraining the formation of fumaric acid likely to occur when maleic acid and/or maleic anhydride react with oxycarboxylic...
4996356 Carboxylic acids and methods of preparing the same  
Biodegradable and little skin-roughening carboxylic acids being an excellent surfactant in a wide pH range and having the general formula (1): ##STR1## wherein R is a linear or branched alkyl or...
4959156 Block co-polymers useful as aqueous dispersants  
A process for preparing water-scale inhibitors and, more specifically, a neat process for preparing acrylic acid/ethylene glycol graft co-polymers and a method for their use as scale inhibitors.
4959496 Chemical process  
There is disclosed herein improved processes for the preparation of ether carboxylates by reacting in an alkaline reaction medium the salts of maleic acid and a carboxylic or polycarboxylic acid...
4950787 Chemical process  
There is disclosed an improved process for preparing 1-hydroxy-3-oxa-1,2,4,5-pentane tetracarboxylic acid and 3,6-dioxa-1,2,4,5,7,8-octane hexacarboxylic acid wherein the unreacted starting acids...
4904417 Fluorine-containing polyether and process for preparing the same  
A fluorine-containing polyether of the formula: A--X--A' wherein A and A' are the same or different and are each --COF, --COCl or --COOH, and X is --CF 2 CF 2 --R f --O--C m F 2m --O--R f ...
4898900 3,3-oxy-bis{[2,2'-di(bromomethyl)]}propanoic acid derivatives  
Novel derivatives of 3,3'-oxy-bis{[2,2'-di(bromomethyl)]propanoic acid}of formula (1) ##STR1## in which Y represents OR, chlorine or NH--R and wherein R represents hydrogen or an alkyl, aralkyl or...
4867901 Improved process for reacting salts of D,L-tartaric and maleic acid in the production of ether carboxylate mixtures  
There is disclosed herein improved processes for the preparation of mixtures of alkali metal salts of 1-hydroxy-3-oxa-1,2,4,5-pentane tetracarboxylate and alkali metal salts of...
4827028 Anionic surfactants  
Described are anionic surfactants which are made by (1) reacting maleic acid, fumaric acid, itaconic acid or mixtures thereof with at least one selected epoxy-capped poly(oxyalkylated) alcohol in...
4798907 Controlled temperature process for making 2,2'-oxodisuccinates useful as laundry detergent builders  
High yields of 2,2'-oxodisuccinate are secured by reacting maleate and malate in aqueous alkaline media containing mixtures of particular divalent (e.g., Ca 2 +) and solubilizing monovalent (e.g.,...
4760198 1:1 copolymer of difluoromethylene oxide and tetrafluoroethylene oxide and synthesis  
Perfluoropolyethers containing an approximate equal number of difluoromethylene and tetrafluoroethylene repeat units distributed either randomly or in alternating sequence along the polymer chain...
4723016 Preparation of anhydrous organic acid salts  
One-step process for preparing anhydrous, organic acid alkali or alkaline earth metal salts by contacting and reacting an organic or polymeric acid fluoride, anhydride or ester and an organic...
4713487 Ether carboxylates and process for preparing same  
Novel ether carboxylates of the following formula (I) ##STR1## in which R represents a linear or branched alkyl or alkenyl group having from 4 to 32 carbon atoms, and A and B independently...
4654159 Ether hydroxypolycarboxylate detergency builders  
Ether hydroxypolycarboxylates prepared from epoxysuccinates by treatment with an alkaline calcium compound are disclosed. These compounds act as sequestering agents and are useful as detergency...
4639325 Detergent builder  
Products which are useful as detergent builders and which do not contain nitrogen or phosphorous atoms are described. Such detergent builders comprise one or more compounds of the Formula I-V...
4611087 Salts of alkenylsuccinic monoesters  
Novel salts of alkenylsuccinic monoesters represented by the following formulas (I) or (II): ##STR1## in which R 1 represents a hydrocarbon group, R 2 represents a hydrogen atom or a methyl...
4566984 Ether polycarboxylates  
Novel ether carboxylates prepared from ketomalonate esters and diene compounds are disclosed. Detergent compositions incorporating the ether carboxylates can be prepared without use of...
Matches 1 - 50 out of 153 1 2 3 4 >