Title:
プロピレン系樹脂押出発泡体の製造方法
Document Type and Number:
Japanese Patent JP5202942
Kind Code:
B2
Abstract:
Extruded propylene-based resin foam according to the present invention is formed by extrusion-foaming a propylene-based resin, and the extruded propylene-based resin foam has a closed cell content of less than 40 % and an expansion ratio of 10 or more. Since the extruded propylene-based resin foam has an open-cell structure in which a cell-broken state is formed at a desired level and has a high expansion ratio, each cell in the foam has a sound absorption performance, such that the extruded foam is excellent in sound absorption performance.
Inventors:
Minoru Sugawara
Yasuhiko Otsuki
Ryoichi Tsujo
Yasuhiko Otsuki
Ryoichi Tsujo
Application Number:
JP2007509312A
Publication Date:
June 05, 2013
Filing Date:
March 22, 2006
Export Citation:
Assignee:
Prime Polymer Co., Ltd.
International Classes:
C08J9/12; B29C48/05; B29C48/06; B29C48/07; B29C48/08; B29C48/12; B29C48/92; B29C48/04; B29K23/00; B29K105/04
Domestic Patent References:
| JP2002501443A | 2002-01-15 | |||
| JP2002178393A | 2002-06-26 | |||
| JP2000043076A | 2000-02-15 | |||
| JP2004500998A | 2004-01-15 | |||
| JP2002348396A | 2002-12-04 | |||
| JP2003165858A | 2003-06-10 | |||
| JP2001001384A | 2001-01-09 | |||
| JPH0957811A | 1997-03-04 | |||
| JP2002511917A | 2002-04-16 | |||
| JP2002501443A | 2002-01-15 | |||
| JP2002178393A | 2002-06-26 | |||
| JP2000043076A | 2000-02-15 |
Attorney, Agent or Firm:
Intellectual Property Office
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