| 摘要 |
The invention relates to additives containing a cellulose ether composition used in the form of a water-retainer, plasticiser and a lubricant for extruding inorganic materials. The use of the inventive cellulose ether composition in construction materials and in other mixtures whose maximum grain size is equal to 2 mm and a method for extruding inorganic materials by means of said additives are also disclosed. The use of said methyl-cellulose composition makes it possible to obtain, while the extrusion process, the improved process properties, the best quality of the extruded body surface and the product improved properties. The additives containing cellulose ether composition also comprise a solvent (for example, a carboxylate ether or carboxylic acid) and an antifoaming agent (for example alkylene-glycol). ® KIPO & WIPO 2008 |
