FOAMED HEAT-INSULATING MATERIAL PRODUCTION METHOD AND FOAMED HEAT-INSULATING MATERIAL

WIPO Patent Application WO/2018/105394

A1

Provided is a foamed heat-insulating material which encapsulates therein a low-heat conductivity gas and which yields high heat insulating performance. High-melting point beads (2) that have been foamed up to a prescribed expansion ratio with a gas of low thermal conductivity by using a resin that does not soften at the beads-foaming temperature and that has a low gas transmission rate are mixed with low-temperature foam beads (3) to be foamed within a forming die, and the resultant mixture is filled in a beads forming die cavity (4b) and foamed by heating.

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NAKANISHI YUSUKE (JP)
KUBO YUTA (JP)
IMAIZUMI MASARU (JP)
KONO KAZUSHI (JP)

PCT/JP2017/041954

June 14, 2018

November 22, 2017

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MITSUBISHI ELECTRIC CORP (JP)

C08J9/228; B29C44/00; B29C44/44; B29C67/20; B29K101/12

JPS5968215A	1984-04-18
JP2004176047A	2004-06-24
JP2015189837A	2015-11-02
JP2004115785A	2004-04-15
JP2001162640A	2001-06-19
JP2002200635A	2002-07-16
JPS58171946A	1983-10-08
JP2004142260A	2004-05-20
JP2017171773A	2017-09-28

OIWA Masuo et al. (JP)

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