Patent application number | Description | Published |
20110054071 | METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF POLYMERS BY RADICAL POLYMERIZATION - The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone. | 03-03-2011 |
20120004383 | COPOLYMERS OF MONOCARBOXYLIC ACIDS AND DICARBOXYLIC ACIDS, THEIR PREPARATION AND USE - The invention relates to a process for preparing a polymer by free-radical polymerization of at least one ethylenically unsaturated monocarboxylic acid and/or a salt thereof, at least one ethylenically unsaturated dicarboxylic acid and/or an anhydride and/or a salt thereof, in the presence of hypophosphorous acid and/or a salt thereof. The invention also relates to a polymer composition obtainable by this process. The invention also relates to the use of such a polymer composition as detergent additive, e.g. as dispersant, scale inhibitor or sequestrant for laundry detergents. | 01-05-2012 |
20120021957 | IONIC LIQUIDS HAVING A CONTENT OF IONIC POLYMERS - Method of adjusting the viscosity of a salt having a melting point of less than 100° C. at atmospheric pressure (referred to as ionic liquid for short), wherein an oligomeric or polymeric compound which has a content of at least 0.01 mol of covalently bound acid groups/100 g of compound with at least 1% of the acid groups being present as a salt with an organic cation comprising at least one heteroatom selected from among nitrogen, oxygen, sulfur and phosphorus is added to the ionic liquid. | 01-26-2012 |
20120094566 | METHOD FOR PRODUCING A SWELLING NONWOVEN FABRIC - Swellable nonwovens with reduced washoff loss are produced. | 04-19-2012 |
20120129749 | COPOLYMERS COMPRISING CARBOXYLIC ACID GROUPS, SULFO GROUPS AND POLYALKYLENE OXIDE GROUPS AS A SCALE-INHIBITING ADDITIVE TO WASHING AND CLEANING PRODUCTS - The invention relates to copolymers which comprise, in copolymerized form,
| 05-24-2012 |
20120129750 | Copolymers Comprising Carboxylic Acid Groups, Sulfo Groups and Polyalkylene Oxide Groups as a Scale-Inhibiting Additive to Washing and Cleaning Products - The invention relates to copolymers which comprise, in copolymerized form,
| 05-24-2012 |
20120199783 | LOW MOLECULAR WEIGHT PHOSPHORUS-CONTAINING POLYACRYLIC ACIDS AND USE THEREOF AS SCALE INHIBITORS IN WATER-CARRYING SYSTEMS - The invention relates to an aqueous solution of acrylic acid polymers, obtainable by polymerization of acrylic acid in feed mode with peroxodisulfate as initiator in the presence of hypophosphite in water as solvent, wherein
| 08-09-2012 |
20120202937 | LOW MOLECULAR WEIGHT PHOSPHORUS-CONTAINING POLYACRYLIC ACIDS AND USE THEREOF AS DISPERSANTS - An aqueous solution of acrylic acid polymers having a total phosphorus content of organically and possibly inorganically bound phosphorus, wherein
| 08-09-2012 |
20120214941 | PROCESS FOR PREPARING AQUEOUS POLYACRYLIC ACID SOLUTIONS - A process for preparing aqueous solutions of homo- or copolymers of acrylic acid by means of free-radical polymerization of acrylic acid and optionally water-soluble, monoethylenically unsaturated comonomers in an aqueous medium in the presence of at least one water-soluble initiator and of at least one water-soluble regulator, wherein the polymerization is conducted by means of a continuous process, and wherein, after the polymerization, low molecular weight components are at least partly removed from the resulting aqueous polymer solution. For the polymerization, preference is given to using microstructured mixers and reactors. Preference is given to using at least one reactor and/or mixer with microstructures for the process. | 08-23-2012 |
20120220707 | LOW MOLECULAR WEIGHT PHOSPHORUS-CONTAINING POLYACRYLIC ACIDS AND USE THEREOF AS DISPERSANTS - Aqueous solutions of acrylic acid polymers are prepared by polymerization of acrylic acid in a feed operation with a free-radical initiator in the presence of hypophosphite in water as solvent, by a process comprising (i) initially charging water and optionally one or more ethylenically unsaturated comonomers, (ii) continuously adding acrylic acid in acidic, unneutralized form, optionally one or more ethylenically unsaturated comonomers, aqueous free-radical initiator solution and aqueous hypophosphite solution, and (iii) adding a base to the aqueous solution on completion of the acrylic acid feed, wherein a comonomer content does not exceed 30% by weight and the aqueous hypophosphite solution is added during a total feed time made up of three consecutive feed time spans Δt | 08-30-2012 |
20130037491 | POLYMER MIXTURES AS DEPOSIT INHIBITORS IN WATER-BEARING SYSTEMS - A polymer mixture in solid or aqueous form includes a content of from 5 to 95% by weight of a first polymer and a content of from 5 to 95% by weight of a second polymer. The first polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 20 000 g/mol. The second polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 50 000 g/mol. The polymer mixture can inhibit precipitation and sedimentation of calcium salts and magnesium salts in water-bearing systems. | 02-14-2013 |
20140080957 | LOW MOLECULAR WEIGHT PHOSPHORUS-CONTAINING POLYACRYLIC ACIDS AND USE THEREOF AS DISPERSANTS - An aqueous solution of an acrylic acid polymer which contains bound phosphonite groups is provided. The acrylic acid polymer is prepared by a feed operation polymerization which results in the formation of phosphinite groups bound within the acrylic acid polymer chain. The dried acrylic acid polymer is also provided. Dispersions of inorganic pigments prepared in the presence of the acrylic acid polymer or the aqueous solution of the acrylic acid polymer are also provided. | 03-20-2014 |
20140088280 | Method and Device for the Continuous Production of Polymers by Radical Polymerization - The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone. | 03-27-2014 |
20140148337 | Acrylate-acrylamide-AMPS terpolymer as dispersant for agrochemical formulations - The present invention relates to a composition comprising an agrochemical active substance and a random terpolymer which comprises the monomers i), ii), iii) and optionally further monomers incorporated into the polymer, where
| 05-29-2014 |
20150027956 | LOW MOLECULAR WEIGHT PHOSPHORUS-CONTAINING POLYACRYLIC ACIDS AND USE THEREOF AS SCALE INHIBITORS IN WATER-CARRYING SYSTEMS - The invention relates to an aqueous solution of acrylic acid polymers, obtainable by polymerization of acrylic acid in feed mode with peroxodisulfate as initiator in the presence of hypophosphite in water as solvent, wherein
| 01-29-2015 |
Patent application number | Description | Published |
20100087689 | METHOD FOR DEPLETION OF SULFUR AND/OR COMPOUNDS CONTAINING SULFUR FROM A BIOCHEMICALLY PRODUCED ORGANIC COMPOUND - Method of reducing the concentration of sulfur and/or a sulfur-containing compound in a biochemically prepared organic compound by bringing the respective organic compound into contact with an adsorbent, wherein the adsorbent is a clay doped with silver and/or a silver compound. | 04-08-2010 |
20110268649 | CATALYST COMPRISING RUTHENIUM AND NICKEL FOR THE OXIDATION OF HYDROGEN CHLORIDE - Catalyst for gas-phase reactions which has a high mechanical stability and comprises one or more active metals on a support comprising aluminum oxide as support material, wherein the aluminum oxide component of the support consists essentially of alpha-aluminum oxide. | 11-03-2011 |
20110274613 | PROCESS FOR REGENERATING A CATALYST COMPRISING RUTHENIUM OXIDE FOR THE OXIDATION OF HYDROGEN CHLORIDE - The invention relates to a process for regenerating a hydrogen chloride oxidation catalyst comprising ruthenium oxide on a support material, which comprises the steps
| 11-10-2011 |
20120027665 | CATALYST COMPRISING RUTHENIUM AND SILVER AND/OR CALCIUM FOR THE OXIDATION OF HYDROGEN CHLORIDE - Catalyst comprising ruthenium on a support for the catalytic oxidation of hydrogen chloride by means of oxygen to form chlorine, wherein the catalyst comprises from 0.01 to 10% by weight of silver and/or calcium as dopant. | 02-02-2012 |
20120035399 | METHOD FOR PRODUCING 1,6-HEXANEDIOL BY HYDROGENATION OF OLIGO- AND POLYESTERS - The present invention relates to a process for hydrogenating oligo- and/or polyesters obtainable by esterifying a DCS with a diol or diol mixture, said hydrogenation being performed in the presence of a catalyst whose catalyst precursor comprises copper oxide, aluminum oxide and at least one oxide of lanthanum, of iron, of tungsten, of molybdenum, of titanium or of zirconium, and to a process for preparing 1,6-hexanediol by catalytically hydrogenating ester mixtures which comprise, as main components, oligo- and polyesters of adipic acid and 6-hydroxycaproic acid, and are obtained by esterifying DCS with diols, especially 1,6-hexanediol or diol mixtures. | 02-09-2012 |
20120065451 | PROCESS FOR THE REGENERATION OF A COPPER, ZINC AND ZIRCONIUM OXIDE-COMPRISING ADSORPTION COMPOSITION - The invention relates to a process for the regeneration of a copper-, zinc- and zirconium oxide-comprising adsorption composition after use thereof for the adsorptive removal of carbon monoxide from substance streams comprising carbon monoxide and at least one olefin, in which the adsorption composition is heated to a temperature in the range from 160 to 400° C. and a regeneration gas is passed through the adsorption composition, wherein the regeneration gas comprises 1000 to 3000 ppm of oxygen in an inert carrier gas. | 03-15-2012 |
20120065452 | PROCESS FOR THE ACTIVATION OF A COPPER-, ZINC- AND ZIRCONIUM OXIDE-COMPRISING ADSORPTION COMPOSITION - The invention relates to a process for the activation of a copper, zinc and zirconium oxide-comprising adsorption composition for the adsorptive removal of carbon monoxide from substance streams comprising carbon monoxide and at least one olefin wherein
| 03-15-2012 |
20120087855 | PROCESS FOR THE OXIDATION OF HYDROGEN CHLORIDE OVER A CATALYST HAVING A LOW SURFACE ROUGHNESS - The invention relates to a process for the catalytic oxidation of hydrogen chloride by means of oxygen to form chlorine in a fluidized-bed process in the presence of a catalyst comprising ruthenium on a particulate support composed of alpha-aluminum oxide having an average particle size of from 10 to 200 μm, wherein the catalyst support has a low surface roughness and can be obtained from a used catalyst which has been used in a fluidized-bed process for at least 500 hours of operation. | 04-12-2012 |
20120245394 | METHOD FOR PRODUCING A SUPPORTED HYDROGENATION CATALYST HAVING INCREASED HYDROGENATION ACTIVITY - In a process for preparing a supported hydrogenation catalyst with increased hydrogenation activity, which comprises a hydrogenating metal and/or an oxide of a hydrogenating metal on an Al | 09-27-2012 |
20130115707 | METHOD FOR REMOVING SULFUR-COMPRISING COMPOUNDS FROM A HYDROCARBONACEOUS GAS MIXTURE - A method for removing sulfur-comprising compounds from a hydrocarbonaceous gas mixture, in which an adsorber material is brought into contact with the hydrocarbonaceous gas mixture, wherein the adsorber material comprises a material that adsorbs sulfur-comprising compounds and, in addition, comprises at least one transition metal compound which changes color thereof by reaction with the sulfur-comprising compounds. | 05-09-2013 |
20140117281 | PROCESS FOR THE ACTIVATION OF A COPPER-, ZINC- AND ZIRCONIUM OXIDE-COMPRISING ADSORPTION COMPOSITION - A process for the activation of a copper, zinc and zirconium oxide-comprising adsorption composition for the adsorptive removal of carbon monoxide from substance streams comprising carbon monoxide and at least one olefin wherein: (i) in a first activation step an activation gas mixture comprising the olefin and an inert gas is passed through the adsorption composition; and (ii) in a second activation step the adsorption composition is heated to a temperature in the range from 180 to 300° C. and an inert gas is passed through it, wherein the steps (i) and (ii) can each be performed several times. | 05-01-2014 |
20140155255 | PROCESS FOR THE REGENERATION OF A COPPER, ZINC AND ZIRCONIUM OXIDE-COMPRISING ADSORPTION COMPOSITION - The invention relates to a process for the regeneration of a copper-, zinc- and zirconium oxide-comprising adsorption composition after use thereof for the adsorptive removal of carbon monoxide from substance streams comprising carbon monoxide and at least one olefin, in which the adsorption composition is heated to a temperature in the range from 160 to 400° C. and a regeneration gas is passed through the adsorption composition, wherein the regeneration gas comprises 1000 to 3000 ppm of oxygen in an inert carrier gas. | 06-05-2014 |