Vacuum thermal insulation material, and home appliance, house wall and transportation equipment provided with same
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsAKIKO YUASA, MICHIHIRO SHIMA
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Abstract
A vacuum heat insulating material includes a sheath material and a core material that is sealed inside the sheath material in a hermetically sealed decompressed state. The sheath material comprises a gas barrier layer and heat sealing layer. Heat sealing layer contains a heat sealing resin and filler with an aspect ratio exceeding 1. In heat sealing layer, at least some of filler is oriented, with a long-axis direction intersecting with a direction in which heat sealing layer spreads. Accordingly, there is provided a vacuum heat insulating material capable of preventing entry of a gas to the inside and favorably ensuring the hermetically sealed decompressed state on the inside.
Claims13
A vacuum heat insulating material comprising:
- a sheath material;
- and
- a core material that is sealed inside the sheath material in a hermetically sealed decompressed state,
- wherein
- the sheath material includes a gas barrier layer and a heat sealing layer,
- the heat sealing layer contains a heat sealing resin and filler with an aspect ratio exceeding 1, and
- at least some of the filler is oriented, with a long-axis direction intersecting with a direction in which the heat sealing layer spreads.
A vacuum heat insulating material comprising:
- a sheath material;
- and
- a core material that is sealed inside the sheath material in a hermetically sealed decompressed state,
- wherein
- the sheath material includes a gas barrier layer and a heat sealing layer, and
- the heat sealing layer contains a heat sealing resin and filler with an aspect ratio less than or equal to 5.
Dependencies are inferred from the claim text.