Title:
LAMINATED FOAM SHEET AND THERMOFORMED PRODUCT
Document Type and Number:
Japanese Patent JP2014168861
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a laminated foam sheet which is obtained by laminating polystyrene-based resin foam layers formed by resin compositions having different softening temperatures to each other and can easily form a thermoformed product excellent in strength.SOLUTION: There is provided a laminated foam sheet which is used for thermoforming and formed by laminating at least two polystyrene-based resin foam layers of a first polystyrene-based resin foam layer and a second polystyrene-based resin foam layer formed of a resin composition having a softening temperature higher than that of the first polystyrene-based resin foam layer, wherein the apparent density of the first polystyrene-based resin foam layer and the second polystyrene-based resin foam layer has a predetermined relationship.
Inventors:
AOKI KENICHIRO
ONOGAWA HIROAKI
ONOGAWA HIROAKI
Application Number:
JP2013040784A
Publication Date:
September 18, 2014
Filing Date:
March 01, 2013
Export Citation:
Assignee:
SEKISUI PLASTICS
International Classes:
B32B5/32; B29C51/00; B32B27/30; B29K25/00; B29K105/04; B29L9/00
Domestic Patent References:
| JP2012006357A | 2012-01-12 | |||
| JP2011173649A | 2011-09-08 | |||
| JP2012158065A | 2012-08-23 | |||
| JP2012006354A | 2012-01-12 |
Foreign References:
| EP0325779A2 | 1989-08-02 |
Attorney, Agent or Firm:
Noboru Fujimoto
Hiroaki Nakatani
Hiroaki Nakatani
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