Device and method for removing foreign materials f

专利名称：Device and method for removing foreign

materials from polymers

发明人：FRIEDLAENDER, THOMAS申请号：EP13184033.2申请日：20130912公开号：EP2732861A1公开日：20140521

摘要：The method comprises subjecting a polymer composition to a medium includingchemical reagents, electron beam radiation and/or electromagnetic radiation,transforming impurity in the composition to mold, and removing the transformedimpurity from the polymer composition. The removing step is carried out by diffusion ofthe polymer composition. The transformed impurity has a larger diffusion coefficient withrespect to the polymer composition as the initial impurity. A ratio of the diffusioncoefficient of the transformed impurity to a diffusion coefficient of the initial impurity is>= 10. The method comprises subjecting a polymer composition to a medium includingchemical reagents, electron beam radiation and/or electromagnetic radiation,transforming impurity in the composition to mold, and removing the transformedimpurity from the polymer composition. The removing step is carried out by diffusion ofthe polymer composition. The transformed impurity has a larger diffusion coefficient withrespect to the polymer composition as the initial impurity. A ratio of the diffusioncoefficient of the transformed impurity to a diffusion coefficient of the initial impurity is>= 10. A ratio of an absorption coefficient of the initial impurity to an absorption

coefficient of the polymer composition is >= 10. The electromagnetic radiation includes a

monochromatic infrared radiation. An independent claim is included for an apparatus forremoving an impurity from a polymer composition.

申请人：KRONES AG

地址：Böhmerwaldstraße 5 93073 Neutraubling DE

国籍：DE

代理机构：Grünecker, Kinkeldey, Stockmair & Schwanhäusser

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