METHOD FOR PRODUCING RESIN COMPOSITION

摘要

PURPOSE: A manufacturing method for a resin composition is provided to economically manufacture a resin composition because a filler is not necessary to be divided into a desired length of a fiber before being supplied to a compressor. CONSTITUTION: A manufacturing method for a resin composition comprises: a step of supplying a part of resin and a part of a fiber filler having a weight average fiber length longer than 1 mm through a main supply port(5); and a step of supplying the rest of the resin and the fiber filler through an auxiliary supply port(7). The amount of the resin supplied to a compressor(10) is 80-55 wt% and the amount of the fiber filler is 20-45 wt%. The total amount of the resin and the fiber filler is 100 wt%.