| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene resin composition which has an excellent balance among flexibility, tensile strength and surface property stability and particularly shows an excellent surface strength such as scratch resistance and surface property stability at elevated temperatures. SOLUTION: The polypropylene resin composition contains (A) 1-99 wt.% polypropylene resin having a flexural modulus of 50-500 MPa measured according to JIS-K-7203 and a main peak position (melting point) of 120-176°C in crystal melting measured according to JIS-K-7121 with a differential scanning calorimeter (DSC) and (B) 99-1 wt.% olefin polymer having an elastic recovery, defined by the formula: [elastic recovery]=[recovery from deformation under residual stress]×100/[extensional deformation], of 70-100%. COPYRIGHT: (C)2003,JPO
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