INORGANIC CORE MATERIAL COMPOSITION FOR SANDWICH PANELS, HAVING EXCELLENT NON-COMBUSTIBILITY AND LIGHTNESS, AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2023/063452

A1

Disclosed are an inorganic core material composition for sandwich panels, having excellent non-combustibility and lightness, and a preparation method therefor, the composition being eco-friendly and having superior physical properties such as non-combustibility, lightness, thermal insulation and sound absorption since Portland cement therein is partially replaced with calcium carbonate and fly ash from fluidized-bed boilers. The method for manufacturing an inorganic core material for sandwich panels, having excellent non-combustibility and lightness, comprises the steps of: (a) mixing materials and changing same into a slurry; (b) charging the slurry in a mold, and then foaming and agglomerating same; (c) primarily curing the foamed and agglomerated slurry; (d) removing, from the mold, a semi-cured product having been primarily cured, cutting same, and then secondarily curing same; and (e) lowering the temperature of a cured product having been secondarily cured, and then drying same.

KIM YONG HAK (KR)
KIM JEONG DO (KR)
YOO YOUNG GHIL (KR)

PCT/KR2021/014315

April 20, 2023

October 15, 2021

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WELSTONE (KR)

C04B28/02; B28B1/52; B28B11/24; C04B18/06; C04B18/08; C04B18/14; C04B22/10; C04B38/10; C04B111/28; C04B111/40

JP2010532309A	2010-10-07
KR20180137965A	2018-12-28
KR102186229B1	2020-12-03
KR101833399B1	2018-02-28
KR20180046940A	2018-05-10

LEE, Sang-Pil (KR)

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