METHOD FOR PRODUCING THREE-DIMENSIONAL OBJECT

WIPO Patent Application WO/2023/085239

A1

[Problem] Provided is a method that is for producing a three-dimensional object and that enables effective prevention of collapse of an outer mold when thermally curing a thermosetting resin. [Solution] The method for producing a three-dimensional object according to the present disclosure is characterized by comprising a step for forming an outer mold by curing a resin composition containing a curable resin and thermally expandable microcapsules, a step for filling the outer mold with a thermosetting resin composition, and thermally curing the thermosetting resin composition, and a step for heating the outer mold to at least the foaming initiation temperature of the thermally expandable microcapsule to cause the outer mold to collapse, and removing a three-dimensional object formed of the cured thermosetting resin composition, and is characterized in that the heating temperature in the step for thermally curing the thermosetting resin composition is lower than the foaming initiation temperature of the thermally expandable microcapsule by at least 30°C.

JP2003236857	METHOD FOR MANUFACTURING FOAMED POLYURETHANE PANEL
JP5553206	RTM molding method

INAGAKI JUN (JP)
AOKI SHIMPEI (JP)
DAICHO YUUYA (JP)
OOBA YOSHIKAZU (JP)
TENO TOSHINARI (JP)
YAMAMOTO HIROSHI (JP)

PCT/JP2022/041448

May 19, 2023

November 07, 2022

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TORAY ENG CO LTD (JP)
CMET INC (JP)
NABTESCO CORP (JP)

B29C39/24; B29C33/38; B29C39/44; B29C44/00; B29C44/36; B29C44/60; B29C64/106; B29C69/00; B33Y10/00; B33Y70/10; B33Y80/00

WO2013151159A1

2013-10-10

JP2021059044A

2021-04-15

MIYAJIMA Manabu et al. (JP)

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