| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composition which can give injection moldings improved in weld line dielectric strength without detriment to heat resistance and dimensional stability by mixing a resin composition reinforced with glass fibers and/or talc and/or mica with a specified amount of a polytetrafluoroethylene powder having a specified particle diameter. SOLUTION: A resin composition (e.g. PP) reinforced with 20-60wt.% glass fibers and/or talc and/or mica is mixed with 0.5-10wt.% polytetrafluoroethylene powder having a particle diameter of 2-20μm. The glass fibers with which the PP resin is reinforced are desirably ones having a fiber length of 0.2-3mm, desirably 0.4-2mm (in terms of the length of the remaining fibers in a molding), a diameter of 6-23μ, desirably 9-17μm. The talc is desirably one having a mean particle diameter of 1-20μm, desirably 5-12μm. The mica is desirably one having a mean particle diameter of 5-50μm, desirably 7-30μm. |
