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| Number | Title | Issue Date |
| 6379394 | Soil-repellent agent and process for the treatment of articles based on woven cotton A soil-repellent treatment method for articles based on woven cotton, wherein an amphiphilic soil-repellent agent soluble or dispersible in the treatment medium is deposited on the article during one or more washing, rinsing and/or softening or dying step... | 04/30/2002 |
| 6355849 | Process of use in perfluoroalkyation and reactant for making use of this process The subject-matter of the present invention is a process of use in perfluoroalkylation and a reactant for making use of this process. This process is defined in that it comprises a stage in which a material of formula RfH and a base (or a species capable ... | 03/12/2002 |
| 6348436 | Fluid comprising cellulose nanofibrils and its use for oil mining The present invention relates to a drilling fluid comprising cellulose nanofibrils comprising at least 80% of cells with primary walls and charged with carboxylic acids and with acidic polysaccharides, alone or as a mixture. This additive, alone, gives th... | 02/19/2002 |
| 6326459 | Process of polymerization by opening oxygenated rings, using a catalytic composition based on a grafted metal oxide The invention relates to a composition based on a grafted metal oxide, its preparation and its use in a process of polymerization by opening oxygenated rings such as alkyl oxides, cyclic esters or cyclic carbonates. The composition comprises a support cho... | 12/04/2001 |
| 6312669 | Buccodental formulation comprising essentially amorphous cellulose nanofibrils The invention concerns buccodental formulation characterized in that it comprises at least a thickening agent comprising cellulose nanofibrils, said cellulose nanofibrils being substantially amorphous, having a crystallinity index not more than 50%. The i... | 11/06/2001 |
| 6309577 | Process for casting and waterproofing of elements cast in concrete, mortar, cement, by using a silicone resin The process for simultaneously molding and rendering water-repellent molded components made of concrete, mortar, cement or the like consists, before pouring the concrete, cement or the like, in covering the interior of the mold with a composition comprisi... | 10/30/2001 |
| 6306223 | Degreasing method using a surfactant-free composition The present invention relates to a process for removing fatty substances. According to this process, the following steps are carried out:1) at least a first degreasing operation is carried out on the article to be treated, in the presence of a solvent mix... | 10/23/2001 |
| 6299798 | Water-redispersible granules including a liquid active material Water-redispersible granules prepared by drying a water-in-oil emulsion including at least one active material in the form of a hydrophobic liquid; at least one water-soluble compound capable of forming, during the drying process, a solid continuous film ... | 10/09/2001 |
| 6297398 | Method for the synthesis of perfluorosulphonamides, perfluorosulphonamides and their salts, and a sulphonation reagent The invention concerns a method of sulphonation characterised in that it consists in contacting a nucleophile whose nucleophilic atom is a nitrogen atom with a reagent comprising by successive or simultaneous addition: a heavy sulphonyl halide (i.e. whose... | 10/02/2001 |
| 6294011 | Titanium, cerium and alkaline or earth-alkaline based compound, preparation methods and use as colouring pigment The present invention is concerned with a titanium-, -and alkaline- or alkaline-earth-based compound, processes for the preparation thereof, and use thereof as a coloring pigment. The product of the invention is characterized in that it corresponds to for... | 09/25/2001 |
| 6284829 | Silicone elastomer of high thermal conductivity The polyorganosiloxane composition resulting in a silicone elastomer of high thermal conductivity, which can reach and even exceed 1.2 W/m.K, the elastomer retaining an elongation at break of greater than 30%, comprises at least one functional polyorganos... | 09/04/2001 |
| 6271419 | Process and reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function The present invention relates to a process and a reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function. This persulphonylation process is characterized in that it comp... | 08/07/2001 |
| 6271331 | Functionalized polyorganosiloxanes and one of the processes for the preparation thereof The present invention relates to multifunctionalized alkoxy, the alkoxy functionality Y being introduced onto a suitable polyhydroorganosiloxane by a dehydrogenation/condensation reaction from the alcohol from which Y derives and then the functionality W ... | 08/07/2001 |
| 6270626 | Paper making retention system of bentonite and a cationic galactomannan The invention concerns a novel method for making paper based on sheet cellulose fibre, wherein a novel retention system comprising a suspension of bentonite and a cationic galactomannan is used to improve in particular the retention of the incorporated mi... | 08/07/2001 |
| 6265496 | Stable compositions with based of polyorganosiloxanes with cross-linkable functional groups for producing antiadhesive coatings The invention concerns novel compositions containing at least a polyorganosiloxane (A) with crosslinkable functional groups, stable for use and storing, characterized in that said compositions contain at least a stabilizing amino agent consisting of a pol... | 07/24/2001 |
| 6258297 | Water-redispersible granules including a liquid active material and a non ionic alkoxylated type surfactant Water-redispersible granules including at least one active material in the form of a hydrophobic liquid, at least one non-ionic surfactant selected from polyoxyalkylene derivatives, and at least one water-soluble compound selected from polyelectrolytes be... | 07/10/2001 |
| 6254789 | Method for treating aqueous solutions comprising acids and nitrated compounds The invention concerns a method for treating an aqueous solution derived from sluicing of crude mononitrated or dinitrated aromatic compounds obtained by nitration of the corresponding aromatic compounds, consisting in: (a) contacting said aqueous solutio... | 07/03/2001 |
| 6245834 | Use of a combination of silicone compounds as a coupling agent in silica-loaded elastomer compositions Use of an effective amount of a specific combination of silicone compounds comprising the combination: of at least one functionalized polyorganosiloxane (abbreviated as POS) containing, per molecule, at least one functional siloxy unit (abbreviated as UN1... | 06/12/2001 |
| 6245926 | Preparation of alkylmonohydrogenohalogenosilanes by redistribution followed by distillation and associated device The invention concerns a method for obtaining alkylmonohydrogenohalogenosilanes (AHHS), for example Me2 HSiCl.Said AHHS are prepared by redistribution from MeHSiCl2 and Me3 HSiCl in the presence of a catalyst such as AlCl | 06/12/2001 |
| 6245936 | Process for the selective preparation of a 2-hydroxybenzoic acid and a 4-hydroxybenzaldehyde and derivatives thereof The present invention concerns a process for the preparation of a 2-hydroxybenzoic acid and of a 4-hydroxybenzaldehyde and derivatives thereof from a mixture of two phenolic compounds, one carrying a formyl or hydroxymethyl group in the 2 position, and th... | 06/12/2001 |
| 6242650 | Process for the decoloration of aqueous effluents comprising aromatic amines The subject of the present invention is a process for the decoloration of aqueous effluents comprising aromatic amines or their derivatives, in which process the effluents are brought into contact with at least one agent chosen from alkali metal or alkali... | 06/05/2001 |
| 6239227 | Water-soluble or water-dispersible grafted copolymers Novel water-soluble or water-dispersible grafted copolymers comprising polyvinyl alcohol, vinylpyrrolidone or oxyalkylene oligomer or polymer units and hydrophilic copolymer units derived from ethylenically unsaturated anionic and amphoteric water-soluble... | 05/29/2001 |
| 6231657 | Supplementation of cellulose nanofibrils with carboxycellulose with low degree of substitution The invention concerns compositions containing essentially amorphous cellulose nanofibrils, carboxyl cellulose with a degree of substitution not more than o.95 as additive, and optionally at least one co-additive, the content in additive and optional co-a... | 05/15/2001 |
| 6225502 | Use of an aniline depleted in electron to release hydrochloric acid present in a reaction mixture and method for displacing, at least partially, an aniline from its chlorhydrate The invention concerns a method for displacing, at least partially, an aniline from its chlorhydrate, characterized in that said aniline is selected among anilines whereof the conjugate acid has a pKa not more than 6 and in that it consists in a step wher... | 05/01/2001 |
| 6224981 | Water-redispersible powders of film-forming polymers having a core/shell structure The present invention relates to a water-redispersible powder based on film-forming polymers which are substantially water-insoluble and which are prepared by aqueous emulsion polymerization of monomers containing ethylenic unsaturation and with a "core/s... | 05/01/2001 |
| 6224663 | Additivation of essentially amorphous cellulose nanofibrils with carboxyl cellulose with a high degree of substitution The present invention relates to compositions comprising essentially amorphous cellulose nanofibrils, at least one additive chosen from carboxycellulose with a degree of substitution of more than 0.95, a natural polysaccharide, a polyol, and optionally at... | 05/01/2001 |
| 6221149 | Process for the preparation of precipitated silica, new precipitated silicas containing aluminium and their use for the reinforcement of elastomers The invention relates to a new process for the preparation of precipitated silica which has a very good dispersibility and very satisfactory reinforcing properties. It also relates to new precipitated silicas which are in the form of powder, of substantia... | 04/24/2001 |
| 6221473 | Rare-earth and alkali sulphide, method for preparing same and use thereof as a pigment The present invention concerns a sulfide of a rare earth and an alkali, a process for its preparation and its use as a colored pigment. The sulfide is characterized in that it has the formula ABS2 where A represents at least one alkali and B re... | 04/24/2001 |
| 6221393 | Pharmaceutical compositions in the form of sustained-release tablets based on high molecular weight polysaccharide granules The present invention relates to a delayed-release pharmaceutical composition which is in the form of tablets prepared by direct tableting and consisting of at least one active principle and a matrix which gives the said composition its delayed-release ef... | 04/24/2001 |
| 6221326 | Method for preparing hollow silica particles A method for preparing hollow particles comprising a dense silica shell, by precipitating active silica from an aqueous alkaline metal silicate on a core constituted in a material other than silica and by eliminating the material without destroying the si... | 04/24/2001 |
| 6217941 | Isocyanates modified for being provided with surfactant property, composition containing same, resulting coating The invention concerns a compound of formula (I) ##STR1## in which m is to 0 or 1 Iso is the (poly)isocyanate radical (after elimination of an isocyanate function); R10 is selected among: a negative charge; a hydrocarbon-based radical (i.e. a r... | 04/17/2001 |
| 6203721 | Compounds useful for perhalogenoalkylation, reagent for implementing these compounds and synthesis method for obtaining these compounds The invention concerns a reagent and a family of compounds. The reagent contains by successive or simultaneous addition: a material of formula RfH, a silicophilic base, a trivalent nitrogenous derivative containing no hydrogen and at least two silyl group... | 03/20/2001 |
| 6187711 | Use of tin derivatives as latent polycondensation catalysts, and premix containing them Tin derivatives for use as oxygen-activated latent polycondensation catalysts. Said tin derivatives having a formula R1 -Yn -R4, wherein R1 and R4 together form a divalent group or a single bond which... | 02/13/2001 |
| 6184421 | Method for preparing a 4-hydroxybenzaldehyde and derivatives The present invention concerns a process for the preparation of a 4-hydroxybenzaldehyde and its derivatives. More particularly, the invention concerns the preparation of 3-methoxy-4-hydroxybenzaldehyde and 3-ethoxy-4-hydroxybenzaldehyde, respectively know... | 02/06/2001 |
| 6180073 | Compound with base of an alkaline-earth, sulphur and aluminium, gallium or indium, method of preparing same and use as luminophore The present invention relates to a compound based on an alkaline-earth metal, on sulphur and on aluminium, on gallium or indium, to its process of preparation and to its use as luminophore. The compound of the invention corresponds to the formula AB2... | 01/30/2001 |
| 6180743 | Isocyanate masking procedure, use of oximes in isocyanate masking, masked isocyanates and their use in manufacture of coating materials This invention is aimed at a family of masked isocyanate, advantageously masked diisocyanate, and preferably masked polyisocyanate. This isocyanate is defined in that it carries at least one masked isocyanate function obtainable through the action on an i... | 01/30/2001 |
| 6180830 | Method for preparing a bimetallic ruthenium/tin catalyst and a process for the synthesis of aldehydes The present invention relates to a new process for the preparation of a bimetallic ruthenium/tin catalyst. The process for the preparation of a bimetallic ruthenium/tin catalyst according to the invention is characterised by the fact that it consists in c... | 01/30/2001 |
| 6156163 | Reactant, compound and process for the perfluoroalkylation of the nucleophile, and the derivatives obtained A reagent comprising a compound of formula (I): Rf --M(X) (Z)n --Y--R, wherein R is a hydrocarbon radical advantageously having at most 10 carbon atoms and being selected from alkyls and aryls; Rf is a radical of formula I... | 12/05/2000 |
| 6153705 | Method for block polymer synthesis by controlled radical polymerisation The invention relates to a process for polymerizing block polymers of general formula (I): ##STR1## in which process the following are brought into contact with each other: an ethylenically unsaturated monomer of formula: CYY'(.dbd.CW--CW')a | 11/28/2000 |
| 6146454 | Process for the precipitated silica new precipitated silicas containing zinc and their use for the reinforcement of elastomers The invention relates to a new process for the preparation of precipitated silica which has a good dispersibility and very satisfactory reinforcing properties. It also relates to new precipitated silicas which are in the form of powder, of substantially s... | 11/14/2000 |
