Title:
STACK STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2020/031854
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a stack structure having a pierced-through, hollow constitution, the structure having heat insulating properties, being light and durable, and having sound absorbing properties to reduce wind noise, propagated sound, etc. This stack structure includes: a foamed resin layer that comprises fused resin foam particles and has continuous voids; and an air impermeable outer layer that is provided on one side of the foamed resin layer. The stack structure has an air flow rate of 2.5 to 40 cm3/(cm2∙s) as measured using the Frazier method in a condition in which the foamed resin layer of the stack structure cut out with a diameter of 41.5 mmφ is disposed on the air introducing side.
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| JPS5628958 | BUILDING PANEL |
Inventors:
AZUMA NAOKI (JP)
NAKAMOTO TETSUO (JP)
NAKAMOTO TETSUO (JP)
Application Number:
PCT/JP2019/030279
Publication Date:
February 13, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B32B5/18; F16L11/06
Domestic Patent References:
| WO2015083447A1 | 2015-06-11 |
Foreign References:
| JPH10329220A | 1998-12-15 | |||
| JP2004042649A | 2004-02-12 | |||
| JP2003081028A | 2003-03-19 | |||
| JP2014005823A | 2014-01-16 | |||
| JPH11207759A | 1999-08-03 | |||
| JPH10238426A | 1998-09-08 | |||
| JP2007192262A | 2007-08-02 | |||
| JPH11207759A | 1999-08-03 | |||
| JPH04372630A | 1992-12-25 |
Other References:
See also references of EP 3835053A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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