Process for producing polyolefin resin compositions containing inorganic fillers.

摘要

A polyolefin resin composition for molding is produced by pulverizing and surface-treating an inorganic filler together with a surface treatment agent in a dry or semi-dry pulverizing means, mixing the thus-treated inorganic filler with a specified amount of a polyolefin resin and granulating the resultant mixture, and thereafter mixing the thus-obtained granular mixture with an additonal granular or pelletized polyolefin resin at a specified ratio. The ratio by weight is in the range 1/99 to 80/20 of the granular mixture to the additional resin.