To provide a sheet which is a thermoforming sheet composed of a styrenic resin capable of obtaining a molded article excellent in surface impact resistance, rigidity, and the engagement strength with a top cover, and a molded article using the same.
The thermoforming styrenic resin sheet is composed of a resin composition comprising 5-25 wt.% styrenic copolymer resin (A) which is a polymer obtained by anionic polymerization and has a composition ratio b/(a+b) of conjugated diene monomer (b) to [styrenic monomer (a)+conjugated diene monomer (b)] of 0.5-0.8, 55-80 wt.% polystyrene resin (B) substantially composed of a chain of a styrenic monomer alone, and 5-20 wt.% rubber modified polystyrene (C) obtained by graft polymerization of styrene on to a butadiene rubbery polymer which contains dispersed particles having polystyrene in its inside, an average particle diameter of 0.5 to 10 μm, and a content of the polystyrene of 75-90 wt.%.
MIZUTANI YOSHINORI
| JPS5730747A | 1982-02-19 | |||
| JPH06184400A | 1994-07-05 | |||
| JP2002283502A | 2002-10-03 | |||
| JPH08193161A | 1996-07-30 | |||
| JPH1081806A | 1998-03-31 | |||
| JPS4734808B1 |
Kenichi Uno
Takanobu Takekawa
High Shinichi Ara
Nakamura Shigenori