Patent ID: 7847040

Claim:
A thermoplastic resin composition comprising: an α-olefin-based copolymer (I), which comprises 1 to 30% by mole of an ethylene-derived constituent unit, 30 to 69% by mole of a propylene-derived constituent unit, and 10 to 50% by mole of a constituent unit derived from an α-olefin having 4 to 20 carbon atoms, and wherein the total amount of the ethylene-derived constituent unit and the constituent unit derived from an a-olefin having 4 to 20 carbon atoms is 31 to 70% by mole, and for which, in a signal chart measured by 13 C-NMR in an o-dichlorobenzene solution and predetermined such that the peak present at the highest magnetic field among the signals originating from CH (methine) of the constituent unit derived from an a-olefin having 4 to 20 carbon atoms is to be at 34.4 ppm, an absorption intensity A at about 22.0 to 20.9 ppm and an absorption intensity B at about 19.0 to 20.6 ppm satisfy the following relational expressions (i) and (ii) with respect to the absorption intensity C at about 19.0 to 22.0 ppm, which is assignable to propylene methyl: ( A/C ) ×100≦8 (i) ( B/C )×100≧60 (ii), and an other thermoplastic resin (II).