Method of forming a plastic plate.

摘要

A method of forming a plastic plate comprising melt extruding a thermoplastic resin containing a flake-like inorganic filler with an extruder (1,1') into a former (3) while a back pressure is applied to the extruded thermoplastic resin to thereby form it into a plate like body, wherein the molten resin is extruded from at least one extruder (1) into a channel or channels (21,22) corresponding to the extruders which are formed in an adapter (2), the molten resin is fed to a cavity having at least one partition plate (311"), formed in the former (3) which is communicatively connected to the adapter (2) so that a molten resin stream or streams introduced from the channel or channels (21,22) are respectively divided and developed into at least two plate like bodies, the plate-like bodies are merged in an overlapping state, followed by heat-bonding them.