To provide a crystalline thermoplastic resin composition which can give a molding having a high crystallization rate, a good color and excellent mechanical properties and optical properties by mixing a crystalline thermoplastic resin with a specified nucleator and a heat stabilizer in a specified mixing ratio.
This crystalline thermoplastic resin composition comprises 100 pts.wt. crystalline thermoplastic resin desirably being at least one member selected from among polyolefins, polyesters, polyamides and polyacetals, 0.001-5 pts.wt. nucleator comprising a partial metal salt of rosin acid (e.g. partial potassium salt of rosin acid) and 0.001-5 pts.wt. heat stabilizer desirably being at least one member selected from phosphite, phenolic and sulfur heat stabilizers (e.g. Irganox (R) 1010, a product of Ciba Geigy AG).
KASAI TETSUSHI
HORI HIROYUKI
MATSUMOTO HIROSHI
MAEDA MASAO
NATSUHARA EISUKE
ARAKAWA CHEM IND