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Title:
WRAPPING MATERIAL FOR VACUUM THERMAL INSULATION MATERIALS, VACUUM THERMAL INSULATION MATERIAL, AND ARTICLE WITH VACUUM THERMAL INSULATION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/172180
Kind Code:
A1
Abstract:
The present disclosure provides a wrapping material for vacuum thermal insulation materials, which comprises a thermally weldable film and a gas barrier film, and wherein: the gas barrier film comprises a base material and an aluminum metal film that is formed on one surface of the base material; and the aluminum metal film satisfies formula (1) and formula (2). (1): 1.0 × 10-3 ≤ (IA/IB)/T ≤ 3.5 × 10-3 (2): (A/B)/T ≥ 3.8 × 10-3 (In formula (1) and formula (2), IA represents the peak intensity (cps) of a diffraction peak that is positioned around 2θ = 38.5° in an X-ray diffraction measurement of the aluminum metal film with use of a CuKα ray; IB represents the peak intensity (cps) of a diffraction peak that is positioned around 2θ = 44.6° in an X-ray diffraction measurement of an aluminum metal foil with use of a CuKα ray; A represents the peak intensity (kcps) of elemental aluminum of the aluminum metal film as determined by X ray fluorescence analysis; B represents the peak intensity (kcps) of elemental aluminum of the aluminum metal foil as determined by X ray fluorescence analysis; and T represents the thickness (nm) of the aluminum metal film.

Inventors:
MUNEDA, Taku (1-1, Ichigaya-kagacho 1-chome, Shinjuku-k, Tokyo 01, 〒1628001, JP)
IMAI, Masahiro (1-1, Ichigaya-kagacho 1-chome, Shinjuku-k, Tokyo 01, 〒1628001, JP)
Application Number:
JP2019/008375
Publication Date:
September 12, 2019
Filing Date:
March 04, 2019
Export Citation:
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Assignee:
DAI NIPPON PRINTING CO., LTD. (1-1 Ichigaya-kagacho 1-chome, Shinjuku-ku Tokyo, 01, 〒1628001, JP)
International Classes:
F16L59/065; B32B15/08
Attorney, Agent or Firm:
YAMASHITA, Akihiko et al. (3rd Floor Oak Building Kyobashi, 16-10, Kyobashi 1-chome, Chuou-k, Tokyo 31, 〒1040031, JP)
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