Title:
表皮付ポリプロピレン系樹脂発泡成形体
Document Type and Number:
Japanese Patent JP5161481
Kind Code:
B2
Abstract:
The present invention pertains to a skin-covered foamed molded article (22) of expanded propylene resin beads having excellent lightness in weight, mechanical properties and appearance. The present invention provides a skin-covered foamed molded article (22) of propylene resin expanded beads, with the skin covering substantially the entire surface of the molded article (20) of the expanded beads. The skin, within which the molded article (20) of expanded propylene resin beads is placed, is a propylene resin hollow molded body obtained by blow molding. A base resin of which the skin is formed comprises a propylene resin having a partial heat of fusion in a temperature range between 80 and 140°C of at least 15 J/g and a ratio of the partial heat of fusion to a total heat of fusion (partial heat of fusion/total heat of fusion) of at least 0.2 as measured by heat flux differential scanning calorimetry. The skin has a thickness in the range of 0.3 to 3.5 mm, and the molded article (20) of expanded propylene resin beads has an apparent density in the range of 0.015 to 0.15 g/cm 3 . The skin is fuse-bonded to the molded article (20) of expanded beads, and the expanded beads from which the molded article (20) is formed are fuse-bonded to each other.
Inventors:
Tokiwa Tomoo
Shohei Tsuchida
Masato Naito
Shohei Tsuchida
Masato Naito
Application Number:
JP2007121721A
Publication Date:
March 13, 2013
Filing Date:
May 02, 2007
Export Citation:
Assignee:
JSP Corporation
International Classes:
B29C44/00; B29C49/02; B29C49/42; B29C69/02; B29K23/00; B29K105/04; B29L9/00
Domestic Patent References:
| JP2004249558A | ||||
| JP2003213054A | ||||
| JP2004284149A |
Attorney, Agent or Firm:
Isamu Hosoi
Tasuke Sato
Yukiko Kurita
Shunsuke Umeda
Atsushi Naka
Tasuke Sato
Yukiko Kurita
Shunsuke Umeda
Atsushi Naka