Title:
VACUUM HEAT-INSULATING MATERIAL, METHOD FOR PRODUCING VACUUM HEAT-INSULATING MATERIAL, AND OUTER PACKAGING MATERIAL FOR VACUUM HEAT-INSULATING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2017/047701
Kind Code:
A1
Abstract:
Provided are a vacuum heat-insulating material that has high heat-insulation properties from an initial stage and that can maintain said heat-insulation properties for a long period of time, a method for producing the same, and an outer packaging material used in said vacuum heat-insulating material. This vacuum heat-insulating material is plate-shaped and is provided with a core material and an outer packaging material that seals the core material in a vacuum state, wherein: the outer packaging material has a heat fusion layer that contains a vinyl alcohol resin and that is disposed furthest inward, and a gas barrier layer that is layered over the outer-surface side of the heat fusion layer; and the change over time in thermal conductivity between the front surface and the rear surface satisfies formula (1). In formula (1), T1 is the minimum value of said thermal conductivity. T2 is the maximum value within the range from the initial value to the minimal value of said thermal conductivity.
Inventors:
NAKAYA MASAKAZU (JP)
Application Number:
PCT/JP2016/077282
Publication Date:
March 23, 2017
Filing Date:
September 15, 2016
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
F16L59/065; B32B27/30
Foreign References:
| JPH10122477A | 1998-05-15 | |||
| JPS5917095A | 1984-01-28 | |||
| JPS59142135A | 1984-08-15 | |||
| JP2014142061A | 2014-08-07 | |||
| JP2013130289A | 2013-07-04 | |||
| JP4727003B2 | 2011-07-20 |
Attorney, Agent or Firm:
AMANO Kazunori (JP)
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