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Title:
METHOD FOR MANUFACTURING VACUUM HEAT INSULATOR AND VACUUM HEAT INSULATOR
Document Type and Number:
WIPO Patent Application WO/2020/255604
Kind Code:
A1
Abstract:
The present invention includes: a first step for preparing a hollow body (10) which has a heat resistance more than enough to withstand a flame of 781°C for 20 minutes and has a hollow portion (H) formed therein; a second step in which after an inorganic foaming agent having a heat resistance is introduced into the hollow portion of the hollow body prepared in the first step, foaming is performed to form a foam (20) having open cells, or after an inorganic foam which has a heat resistance and also has open cells is introduced, the foam is solidified; and a third step for evacuating the hollow portion, after solidifying the foam in the second step or during the solidifying of the foam in the second step.

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WO/2007/046614VACUUM INSULATION PANEL AND INSULATION STRUCTURE OF REFRIGERATOR APPLYING THE SAME
WO/2018/101955HINGE SUPPORT ASSEMBLY
WO/2017/088721MANUFACTURING METHODS FOR INNER CORE MATERIAL USED FOR VACUUM INSULATION PANEL AND VACUUM INSULATION PANEL
Inventors:
NAKAMURA TAKUJU (JP)
Application Number:
PCT/JP2020/019696
Publication Date:
December 24, 2020
Filing Date:
May 18, 2020
Export Citation:
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Assignee:
YAZAKI ENERGY SYSTEM CORP (JP)
International Classes:
F16L59/065
Foreign References:
JP2011057503A2011-03-24
JPH02192580A1990-07-30
JPH0972488A1997-03-18
JP2000283385A2000-10-13
JP2010169255A2010-08-05
JP2016507704A2016-03-10
JP2018178046A2018-11-15
JPH10195220A1998-07-28
JP3040504U1997-08-26
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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