acid (Total 283788 Patents Found)

Acid (283788 Patents Found)
A method for obtaining an oil that is rich in hydroxyoctadecadienoic(HODE) fatty acids or the esters thereof. According to the inventive method, controlled oxidation of the linoleic acid and/or the linolenic acid or the esters thereof is performed in the presence of an oxidation catalyst. The oxidation is terminated wh...
The new, crystalline trihydrates of sodium L- and D-2-pyrrolidone-5-carboxylate. These trihydrates can be obtained by adjusting the concentration and the temperature in an aqueous solution of sodium L- or D-2-pyrrolidone-5-carboxlate in such a manner that the solubility of the desired trihydrate is exceeded....
A method for topically treating inflammation in humans or animals by administering to the inflamed area a therapeutically effective amount of an alkyl- or aralkyl-substituted acetylsalicylic acid such as methyl-, ethyl-, allyl- or benzyl acetylsalicylate. The method may also be used to treat acne by applying a therapeu...
New syn-isomers of 3-cephem-4-carboxylic acids having anti-bacterial activities, processes for preparation thereof, pharmaceutical compositions thereof, with the acids being substituted at the 3 position with acyloxymethyl, hydroxymethyl, formyl or heterocyclic thiomethyl groups and at the 7 position with alkoxyiminoac...
The present invention relates to a wet process for the manufacture of phosphoric acid, which process essentially comprises a digestion step in which phosphate rock is digested by means of phosphoric acid and sulfuric acid to form a slurry containing highly concentrated phosphoric acid together with calcium sulfate hemi...
Acid-stable and cationic-compatible reticulated bacterial cellulose compositions, containing co-agents and/or cationic surfactants, that are useful rheological modifying agents and stabilizing agents for suspensions, emulsions and foams, and their methods of preparation are disclosed....
Compounds of formula I ##STR1## or their hydroxy-protected derivatives, and compounds of formula I' ##STR2## wherein T is an acyl radical of formula Z ##STR3## wherein R z is unsubstituted or substituted hydrocarbyl wherein at least one carbon atom has been replaced by a hetero atom with the proviso that a hetero ...
A novel N-acetylneuraminic acid derivative, represented by the general formula: ##STR1## wherein the R 1 groups are, independently, hydrogen or acetyl; R 2 is a nucleoside residue; and R 3 is carboxyl or methoxycarbonyl. The N-acetylneuraminic acid derivative is useful in inhibiting metastasis of cancer cells....
The invention discloses a Gram-positive microorganism, Bacillus megaterium, that effectively and efficiently degrades fats, oils and grease. A composition comprising said microorganism and a method for degrading fatty acids and grease are also disclosed....
Use of one or more unsymmetrically substituted s-triazine derivatives in cosmetic or dermatological preparations for preventing the washing out or washing off, caused by the action of water, of endogenous skin cis- and trans-urocanic acid from human skin or the washing out or washing off, caused by the acti...
Disclosed is a method of decontaminating the metal surfaces in the cooling system of a nuclear reactor by contacting the metal surfaces with an aqueous solution containing about 0.5 to about 3% of a ceric acid which can be tetrasulfato ceric acid, hexasulfamato ceric acid, hexaperchlorato ceric acid, or mixtures thereo...
The masking N-formyl group of an N-formyl-amino acid ester or an N-formyl-peptide ester having a free carboxyl group is removed without major side reactions when the ester is contacted with a strong acid in a mixture of water and a specific organic solvent such as methyl ethyl ketone or acetonitrile. This method is spe...
A method of separating and recovering Pu and Np from a Pu- and Np-containing nitric acid solution. The method comprises the steps of subjecting a nitric acid solution containing Pu and Np to valence adjustment by adding a reducing agent consisting of hydroxylamine nitrate and hydrazlne to said nitric acid solution so a...
The invention relates to a process for the manufacture of a nonwoven web using filaments of melted polymers, of the type including the steps of spinning the polymer or polymers, of cooling, drawing and laying down fibers on a belt and of bonding said fibers by calendering in order to form said nonwoven web (15), which ...
A compound of the formula (I) is provided ##STR1## wherein A represents a group of the formula: ##STR2## R 1 and R 2 are independently hydrogen, halogen or a group of the formula --OR 9 ; R 9 is hydrogen, alkyl, alkylsulfonyl, haloalkylsulfonyl, arylsulfonyl or a hydroxy-protecting group; R 3 and R 4 are independ...
A method of treating conditions of amine vaginitis, purulent vaginitis and dysplasia of the mouth of the uterus resulting from papilloma virus infection in the genital region of female animals by topically applying ascorbic acid to the affected region. The invention also provides a medicinal composition in the form of ...
The invention concerns novel 1-benzyl-1,2,5,6-tetrahydropyridine-3-carboxylic acid derivatives of the formula: ##STR1## wherein R 1 is hydroxy, amino, (1-4C)alkylamino, di-[(1-4C)alkyl]amino, benzyloxy optionally substituted by halogeno, or (1-6C)alkoxy optionally substituted by (1-4C)alkoxy, morpholino or di-[(1-4C)a...
The present invention relates to novel fluorobutenic acid hydrazides of the formula (I) ##STR1## in which Y represents C═O, C═S or SO 2 , R 1 represents hydrogen or halogen and R 2 represents alkyl, halogenoalkyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl, alkenyl, alkenyloxy, alkoxy, cycloalkyloxy, alk...
This invention concerns fibers of amorphous polyesters of terephthalic acid or an ester forming derivative thereof and from about 60 mole percent to 100 mole percent 1,2-propylene glycol and from 0 to about 40 mole percent ethylene glycol. These fibers are useful for the production of bonded coherent cigarette filters,...
A lead-acid battery construction comprises a casing, electrolyte means received in the casing and positive and negative electrode means mounted in the casing in contact with the electrolyte and being spaced apart by separator means. The positive electrode means includes a shaped grid structure having a top bar, a lug a...
Phosphonic acid polymers are prepared from di- or polyphosphonic acids having one or more unsaturated C═C bonds (e.g. vinylidene-1,1-diphosphonic acid), either as homopolymers or as higher polymers with at least one further compound having unsaturated C═C bonds (e.g. acrylic acid). The polymers can be used as, or i...
Process for dyeing keratinous fibres, especially human keratinous fibres such as the hair, characterised in that a composition containing, in a medium suitable for dyeing, at least 2,4-diamino-1,3-dimethoxybenzene as a coupler; an oxidation dye precursor; and an oxidising agent; is applied to these fibres, ...
Enteral nutritional composition comprising 4-30% lipid component, 65-80% carbohydrate component and 16-25% protein component, based on total caloric content, wherein said protein comprises by weight 14-30% glutamine and 5-33% arginine and said composition has a nonprotein calorie to grams of nitrogen ratio of 150:1 to ...
The present invention relates to products of the formula ##STR1## where R 1 is H or alkyl, n is an integer from 0 to 10, and R 2 is chosen from amongst H, unsubstituted or substituted alkyl radicals, a ##STR2## group, a substituted or unsubstituted phenyl radical, a ##STR3## group, where X is oxygen or sulfur, or a h...
The purpose of the invention are new benzene phosphonous acid compounds in which two to four benzene nuclei are bound together and which contain one to three phosphorus atoms. The new compounds are free acids, their salts with inorganic cations, their esters, thioesters or amides. The invention concerns also the manufa...
The present invention provides novel fluorosulfonic acids and salts thereof having greater stability and higher acidity than conventional fluorosulfonic acids; and synthetic intermediates thereof. The invention also provides processes for producing novel fluorosulfonic acids from which various derivatives can be easily...
Process for the synthesis of racemic thiotic acid comprising the following stages: a) reaction of the alkyl ester of 6,8-di-halo-octanoic acid in an organic solvent with an aqueous solution of alkali disulfide in presence of a compound for phase transfer catalysis selected from the group consisting of quaternary ammoni...
The present invention provides novel intermediates represented by general formula (I) etc. for preparing a phenoxyacetic acid derivative represented by general formula (X) or a pharmaceutically acceptable salt thereof, which has β3-adrenoceptor stimulating activity and are useful for treating or preventing obesity, hy...