Kowollik
Martin Kowollik, Bad Fallingbostel DE
Patent application number | Description | Published |
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20100099862 | PROCESS FOR WASHING POLYSACCHARIDE DERIVATIVES - The present invention relates to a novel process for removing and purifying polysaccharide derivatives, preferably cellulose ethers, from a suspension using a continuous filter device with a multitude of working zones with intermediate resuspension of the filtercake. | 04-22-2010 |
20110281979 | STORING AND DISTRIBUTING A FEEDER PRODUCT - The present invention relates to a process for the preparation of a water-moist cellulose ether composition, characterized in that water-soluble polymeric additives which contain anionic groups (WSAP), or corresponding additive mixtures, are added to the cellulose ether composition. The invention furthermore relates to water-moist cellulose ether compositions which can be prepared by such a process, and to corresponding milled and dried cellulose ether compositions. The invention also relates to the use of these WSAP or corresponding WSAP mixtures for improving the transportability of water-moist cellulose ether compositions in conveying units. | 11-17-2011 |
Martin Kowollik, Fallingbostel DE
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20110113989 | METHYLHYDROXYPROPYLCELLULOSE (MHCP) FOR MINERAL-BOUND BUILDING MATERIAL SYSTEMS - The present invention relates to the preparation of methylhydroxypropylcellulose (MHPC) and the use thereof in mineral-bound building material systems, preferably in gypsum-bound building material systems, particularly preferably in gypsum machine plaster. | 05-19-2011 |
Ralf Kowollik, Berlin DE
Patent application number | Description | Published |
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20120325046 | Method for Producing a Fracture-Divided Component, and Component Produced According to the Method - A method for producing a fracture-divided component, in particular a connecting rod, with an at least partially coated bore includes the steps of: providing an unfinished component; applying a coating of a bearing material to a bore surface; and working the coating, in order to compensate internal tensile stresses in the coating, before fracture division of the component. Alternatively, the method for producing a fracture-divided component, in particular a connecting rod, having an at least partially coated bore includes the steps of: providing an unfinished component; applying a coating of a bearing material to a bore surface before fracture division of the component; and forming a counter-hardness zone before the application of the coating in order to generate compressive stresses which oppose the internal tensile stresses of the coating. | 12-27-2012 |