PROCESS FOR PRODUCING POLYOLEFIN RESIN COMPOSITION

摘要

A process for producing a polyolefin resin composition, comprising the mixing step of conducting melt kneading of multiple polyolefin components different from each other in limiting viscosity into a mixed fluid and the filtering step of introducing the mixed fluid in an apparatus main body part with a flow channel for transfer of the mixed fluid and a filter unit with a metal sinter filter disposed along the flow channel of the apparatus main body part and passing the same through the metal sinter filter so that the filtration rate of the mixed fluid falls within a given range. In the filter unit, the metal sinter filter is fixed to the apparatus main body part in a state such that the portion of abuttal of the periphery of the metal sinter filter on the apparatus main body part is hermetically sealed.