公开(公告)号：WO2014047297A1

公开(公告)日：2014-03-27

申请号：PCT/US2013/060633

申请日：2013-09-19

Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.

Inventor： RAMAN, Chandrashekar ,  XIANG, Bei ,  ANAND, Murugaiah ,  RODEN, Don, Robert

IPC: C08J3/20 ,  B29C47/64 ,  C08K3/38

CPC classification number: C08K3/38 ,  B29B7/421 ,  B29B7/482 ,  B29B7/845 ,  B29B7/90 ,  B29C47/0009 ,  B29C47/1081 ,  B29C47/385 ,  B29C47/6031 ,  B29C47/605 ,  B29C47/64 ,  C08J3/203 ,  C08J2369/00 ,  C08J2377/02 ,  C08J2377/06 ,  C08K3/22 ,  C08K5/54 ,  C08K5/5403 ,  C08K5/5425 ,  C08K7/14 ,  C08K9/06 ,  C08K13/02 ,  C08K2003/382 ,  C08K2003/385 ,  C08K2201/001 ,  Y10T428/2991 ,  Y10T428/2995 ,  Y10T428/2996

Abstract: A thermally conductive plastic composition and a system and method for forming such compositions. The thermally conductive composition comprises a polymer material and a thermally conductive filler, such as boron nitride, and exhibits good in-plane thermal conductivity, through-plane conductivity, or both. The system for forming thermally conductive plastic compositions comprises an extruder and an extruder screw comprising fractional mixing elements. The extruder can also comprise a screw with shovel elements located in a region of the system for introducing a thermally conductive filler into the extruder. The system and method allow for the processing of thermally conductive plastic compositions comprising boron nitride and can allow for the processing of boron nitride agglomerates such that the agglomerates remain sufficiently in tact to provide a composition exhibiting both excellent in-plane and through-plane conductivity.

Abstract translation: 导热塑料组合物及其制备方法。 导热组合物包括聚合物材料和诸如氮化硼的导热填料，并且表现出良好的面内导热性，通过平面导电性或两者。 用于形成导热塑料组合物的系统包括挤出机和包括分数混合元件的挤出机螺杆。 挤出机还可以包括具有位于系统的区域中的铲元件的螺钉，用于将导热填料引入挤出机。 该系统和方法允许加工包含氮化硼的导热塑料组合物，并且可以允许氮化硼附聚物的加工，使得附聚物保持足够的触感，以提供具有优异的平面内和通过平面导电性的组合物。