发明名称 METHOD OF PRODUCTION OF POLYMERIC GRANULATES FREE OF VACUOLES
摘要 FIELD: chemical industry; production of polymeric granulates free of vacuoles. ^ SUBSTANCE: the invention presents a method of production of polymeric granulates free of vacuoles. The method provides for an extrusion of melt of polycarbonate, refrigerating of a produced extrudate and its cutting. Refrigerating is conducted at a speed of less than 50 / sec up to the temperature exceeding vitrification temperature of polymer by 1-20, at which the cutting is exercised. The invention allows to produce polymeric granulates, content of a vacuole in which makes less than 1 vol. %, in particular less than 0.1 vol. %. ^ EFFECT: the invention allows to produce polymeric granulates, content of a vacuole in which makes less than 1 vol. %, in particular less than 0.1 vol. %. ^ 2 cl
申请公布号 RU2230661(C2) 申请公布日期 2004.06.20
申请号 RU20000128022 申请日期 1999.03.26
申请人 发明人 EHLZNER TOMAS;KHOJZER JURGEN;KORDZ KRISTIAN
分类号 B29B9/06;B29B9/12;B29C35/16;C08J3/12 主分类号 B29B9/06
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