| 摘要 |
PURPOSE:To produce a molded product having good surface appearance and excellent weatherability by molding a crystalline resin. CONSTITUTION:In the injection molding of a crystalline resin, a mold heated to the m.p. of the crystalline resin or higher is filled with the molten crystalline resin and, immediately after filling, the temp. of the mold is cooled to thermal deformation temp. of the crystalline resin or lower while the cavity of the mold is pressurized and compressed. |
