To provide a composite molded body which is excellent in a foaming property, and also in soft feeling and heat resistance.
The composite molded body is made by carrying out one piece molding of a foaming layer to a polyolefin-based composite resin layer. A composition for a foaming layer which composes the foaming layer comprises: (a) a hydrogenated product of a block copolymer having an aromatic vinyl compound and a conjugated diene compound; (b) a propylene-based polymer; (c) a softening material for rubber, and (d) a propylene-based polymer mixture comprising a crystalline propylene polymer and an amorphous copolymer comprising propylene and ethylene. (A) The type A hardness of the composition for the foaming layer is not more than 80, the surface hardness (ASKER C) of the foaming layer is not more than 75, (B) the foaming magnification of the foaming layer is at least 1.2, (C) the melt extensibility of the composition for the foaming layer is at least 80 m/min at 170-190°C, and (D) the temperature at the time of 0.1 mm deformation of the TMA measurement value of the composition for the foaming layer is at the lowest 100°C, and the temperature at the time of 0.5 mm deformation is at the lowest 120°C.
TSUJI TATSUMI
TSUZUKI YOSHIHIKO
HARA HIROKI
TOYOTA MOTOR CORP
| JPH06218741A | 1994-08-09 | |||
| JP2003041039A | 2003-02-13 | |||
| JPH079485A | 1995-01-13 | |||
| JP2002137306A | 2002-05-14 |
Tamiwa Iwakura
Takahashi Shoki
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