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Patent Searching and Data


Matches 451 - 500 out of 2,810

Document Document Title
WO/2000/027524A1
The invention relates to a catalyst body (4) for degrading halogenated hydrocarbons, especially dioxins and/or furans, having an active mass comprising titanium dioxide, carbon and at least one active component which is selected from the...  
WO/2000/025885A1
The invention concerns a method for separating at least a constituent of a mixture in a set of looping chromatographic columns, the loop comprising at least a point for injecting a load, a point for drawing off the raffinate, a point for...  
WO/2000/015588A1
A method for removing one or more fluorinated alkenes from a fluid comprises the step of contacting the fluid with an N-, S-, or P-containing nucleophile for a time sufficient to form an N-, S-, or P-containing nucleophile-fluoroalkene a...  
WO/2000/016231A1
A method for screening compound libraries or portions thereof by one or more bioavailability properties including absorption is provided. Novel compound libraries selected for bioavailability as produced by the method also are provided. ...  
WO/2000/014177A1
It has been discovered that the polymerization of vinyl aromatic compounds, such as styrene, may be inhibited by the addition of a composition that contains a hindered hydroxylamine, and, optionally, a synergist together with the hindere...  
WO/2000/014175A1
A composition comprising: an effective amount sufficient to inhibit polymerisation of an ethylenically unsaturated monomer or mixture of monomers polymerisable by free radical polymerisation of at least one compound which is capable of a...  
WO/2000/006279A1
Process for purifying raw solid chemical substances obtained, e.g., by crystallization from the melt, based on the general technique known as sweating (i.e., partial melting with simultaneous purification) and, in particular, on dry-swea...  
WO/2000/006297A1
The invention relates to adsorbing chemical samples onto inert carriers to form highly stable free flowing solid for long term storage in, for example, a proprietary compound collection.  
WO/2000/003965A1
Selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine and 1-oxyl-2,2,6,6-tetramethyl-4-aminopiperidine are surprisingly effective as inhibitors to prevent the premature polymerization of acrylic and methacrylic acids, th...  
WO/1999/061396A1
A method for stabilizing an unsaturated polymerizable organic compound from premature polymerization includes addition thereto of an imidazoline or imidazolidine compound, optionally with ring substituents including hydroxyl, oxyl, or ox...  
WO/1999/060072A1
The invention relates to substance mixtures comprising (A) compounds containing vinyl groups; (B) an effective quantity of a mixture which inhibits premature polymerization of the compounds containing vinyl groups, said inhibiting mixtur...  
WO/1999/059711A1
The invention pertains to a process for the preparation of an organic compound by a condensation reaction in which, besides the organic compound, other products are formed and one or more of the products formed during the preparation are...  
WO/1999/055797A1
The invention concerns a composition for preventing radical polymerisation of ethylenically unsaturated monomers characterised in that it comprises at least a benzenetriamine derivative corresponding to general formula (I) wherein: the r...  
WO/1999/052841A1
A process for producing aromatic compounds or polymers thereof from a plant body within a short period of time by a convenient procedure. More particularly, a plant body is treated with supercritical water or subcritical water to thereby...  
WO/1999/051647A1
The invention relates to a method for reducing the content of small quantities of C¿1?-C¿2?-aldehydes formed from organic compounds with -CH¿2?-CHR-O- and/or -CH¿2?-CH(OH)-groups (R=H, C¿1?-C¿4?-alkyl) as a result of radical action...  
WO/1999/048996A1
Synergistic composition and method of use are disclosed. The compositions comprise a quinone methide derivative and a hydroxylamine compound. These compositions demonstrate synergism at inhibiting the polymerization of a vinyl aromatic m...  
WO/1999/038594A1
The invention relates to a method for separating substance mixtures by chromatography using spherical microparticles consisting of chemically and physically unmodified, water-insoluble, linear polysaccharides.  
WO/1999/038831A1
This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, a polar solvent and said one or m...  
WO/1999/038832A1
This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, a nonpolar solvent and said one o...  
WO/1999/030154A2
Continuous format high throughput screening (CF-HTS) using at least one porous matrix allows the pharmaceutical industry to simultaneously screen large numbers of chemical entities for a wide range of biological or biochemical activity. ...  
WO/1999/026903A1
The invention concerns a method for extracting an organic molecule or a group of organic molecules from a raw material or for purifying an extract obtained by a conventional extraction method characterised in that it consists in using a ...  
WO/1999/024139A1
A process for separating a compound from a mixture of different compounds is disclosed for compounds comprising at least two negatively charged groups connected by a linker group. The process comprises treating the mixture with a materia...  
WO/1999/024382A1
The invention concerns a method for making an organic compound in a liquid medium containing water, which consists in collecting a mixture of reaction products comprising the organic compound, water and by-products; separating at least p...  
WO/1999/020584A1
Polymerization is inhibited during the anaerobic production of styrene through the addition of a combination of a stable nitroxide free radical compound and a non-toxic phenylenediamine compound.  
WO/1999/018054A1
A process for the crystallisation of a sterically hindered organic compound from a saturated or supersaturated solution of said compound in a solvent therefor, characterised in that crystallisation is effected under elevated pressure at ...  
WO/1999/016734A1
Disclosed are the general principles upon which closed molecular or ionic structural frameworks may be prepared. These frameworks are based upon the self-assembly (wherein the term self-assembly refers to the association of chemical comp...  
WO/1999/015603A1
The invention concerns a composition for preventing radical polymerisation of ethylenically unsaturated monomers characterised in that it comprises at least a cathechol derivative and at least an aromatic ether.  
WO/1999/012935A1
There is provided according to the invention an inhibitor of a serine protease enzyme which is a substituted derivative of trans-hexahydropyrrolo[3,4-b]pyrrol-2-one.  
WO/1999/010527A2
The invention relates to a method for isolating anionic organic substances from aqueous systems using polymer nanoparticles with cationic pH-sensitive surface groups. Extraction can be carried out directly from diluted solutions, biologi...  
WO/1999/001410A1
An alpha-tocopherol is diclosed as a polymerization inhibitor effective against vinyl monomer polymerization. Alpha-tocopherol was found to inhibit polymerization of acrylonitrile and diolefines such as isoprene and butadiene. Alpha-toco...  
WO/1999/000394A1
A cyclic compound of formula (I) wherein R?x¿ groups which may be the same or different are selected from -O-(CH¿2?)¿n?-O- where n is an integer of from 2-6; R?y¿ and R?z¿ groups which may be the same or different are independently ...  
WO/1998/059016A1
The invention concerns a composition for preventing the radical polymerisation of ethylenically unsaturated aromatic monomers characterised in that it comprises at least a dinitroaromatic derivative selected among dinitrosalicylaldehydes...  
WO/1998/058891A1
The invention relates to mixtures consisting of: (a) a compound having general formula (I) R?1¿R?2¿N-A-NR?3¿R?4¿, in which R?1¿-R?4¿ and A have the meanings given in the description; (b) a compound having general formula (II) R?8¿...  
WO/1998/058038A1
The invention relates to a mixture of substances containing one or several compounds with vinyl groups as constituent (A) and a stabilizer (B) as another constituent containing one or several easily volatile nitroxyl compounds as constit...  
WO/1998/056781A1
The invention relates to Form V [3S-[3R*(1R*,2S*) ]]-[3-[[(4-aminophenyl)sulfonyl] (2-methylpropyl) amino]-2-hydroxy-1-(phenylmethyl)propyl] -tetrahydro-3-furanyl ester and processes for producing Form V.  
WO/1998/051647A1
A method for removing heavy metals from solutions of organic compounds by precipitation as sulfides is described. From the so treated solutions it is possible to isolate organic compounds with a content of heavy metals, for example palla...  
WO/1998/051646A1
A method for the removal of heavy metals from solutions of organic compounds by treatment with cysteine or with an N-acylcysteine is described. Organic compounds with a content of heavy metal, for example palladium, particularly low and ...  
WO/1998/045385A1
The invention concerns a composition for inhibiting the radical polymerisation of ethylenically unsaturated monomers characterised in that it comprises at least a nitroxide derivative of formula (I') in which: the point on the nitroxyl f...  
WO/1998/035929A1
The invention relates to a method of producing dicarboxlic acid crystallizates from a solution containing at least one organic dicarboxylic acid, wherein at least one anionic polyelectrolyte with a molar mass of at least 2.000 is added t...  
WO/1998/032717A1
The invention concerns a method for adsorbing inhibitors of polymerisation of ethylenically unsaturate monomers which consists in contacting these inhibitors with an alumina derived from forming by coagulation or by mixing and extruding.  
WO/1998/032519A1
A process is disclosed for the neutralization of amine or alkanolamine heat stable salts with aqueous KOH or with alkali metal base, such as potassium hydroxide, sodium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate...  
WO/1998/032715A1
The invention concerns a method for adsorbing inhibitors of polymerisation of ethylenically unsaturate monomers, which consists in contacting these inhibitors with an alumina, said alumina having a pore volume of diameter greater than 10...  
WO/1998/032716A1
The invention concerns a method for adsorbing inhibitors of polymerisation of ethylenically unsaturate monomers which consists in contacting these inhibitors with an alumina containing at least a compound of an element selected among the...  
WO/1998/029369A1
Gas is recovered from a clathrate hydrate (100) by providing the clathrate hydrate (100) within an occupying zone (102), positioning a source of electromagnetic radiation (200) within the clathrate hydrate occupying zone (102), and apply...  
WO/1998/025889A1
The invention concerns a method of separating a crystallizable organic compound from a liquid compound mixture by means of a single- or multi-stage suspension crystallization method, the crystals behind the final stage being separated by...  
WO/1998/025680A1
The invention concerns a method of separating organic compounds by single- or multi-stage suspension crystallization, each stage consisting of a crystallizer, optionally a crystallizer vessel, and a filter (7) for separating the liquid p...  
WO/1998/025872A1
The invention concerns substance mixtures containing: (A) compounds containing vinyl groups; (B) an active amount of a mixture which inhibits premature polymerization of the compounds containing vinyl groups and contains: (i) at least on...  
WO/1998/013346A1
A monomer composition contains (A) monomers which contain vinyl groups and in which a heteroatom from the group of halogens, nitrogen, oxygen, sulphur or silicium is associated to the vinyl group; and (B) a compound or a mixture of compo...  
WO/1998/005416A1
Mixing device for the blending of at least two liquid phases, containing a housing (1) with an inside diameter D, in which at least one agitator (2) is equipped with two to five segment shaped blades presenting a radius of curvature K, i...  
WO/1998/003452A1
'Three-dimensional' polymers of very small size can be used in the context of synthesis. These polymers provide simple isolation routes by avoiding the need for workup following the reactions, pre-workup characterization, high yield, hig...  

Matches 451 - 500 out of 2,810