| 摘要 |
A thermoplastic polypropylene resin composition, comprises 0.1-5 wt.% of a resin having a melt tension of at least 0.1 N (190 deg C, 15.7 m/min), swelling quotient (L/D ratio of 40, 220 deg C, shear rate of 1.2/*10<3> s<-1>) of at least 1.8 and required time for the ratio of the relaxation modulus values G(t) / G(0.02) to reaches a value of 0.01, of at least 10s. A thermoplastic resin composition (I) comprises: (A) 35-85 wt.% polypropylene resin; (B) 10-35 wt.% elastomer; (C) 2-30 wt.% inorganic filler; and (D) 0.1-5 wt.% of a resin having a melt tension of at least 0.1 N (190 deg C, 15.7 m/min), swelling quotient (L/D ratio of 40, 220 deg C, shear rate of 1.2/*10<3> s<-1>) of at least 1.8 and required time for the ratio G(t)/G(0.02) of G(t), relaxation modulus of elasticity measurement at 210 deg C, to G(0.02), the relaxation modulus of elasticity that reaches a value of 0.01 in a time of 0.02 s, is at least 10s. An Independent claim is included for an injection molded object prepared from the composition (I).
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