Title:
発泡成形体の製造方法
Document Type and Number:
Japanese Patent JP6767739
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a foam molded body having uniform air bubble formed inside, good in appearance and high in expansion ratio.SOLUTION: The manufacturing method of a foam molded body includes: a process (A) of heating a composition containing a thermal expansive microsphere constituted by an outer shell formed of a thermoplastic resin and a foaming agent included in the outer shell and volatilized by heating, and a substrate component at a temperature (Ta); and a process (B) of foam molding the processed article obtained in the process (A) at a temperature (Tb). The temperature (Ta) and the temperature (Tb) have a relationship of the following formula (1), the thermal expansive microsphere has expansion initiation temperature (Ts0) satisfying the following formula (2), and expansion initiation temperature (Ts1) when heating at the temperature (Ta) for 3 minutes satisfies the following formula (3). The formula (1) is -5°C≤Tb-Ta≤25°C, the formula (2) is 5°C≤Ts0-Ta≤20°C, and the formula (3) is 20°C≤Tb-Ts1≤50°C.SELECTED DRAWING: Figure 1
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Inventors:
Ebe Takumi
Yoshimitsu Sasaki
Katsushi Miki
Yoshimitsu Sasaki
Katsushi Miki
Application Number:
JP2015183997A
Publication Date:
October 14, 2020
Filing Date:
September 17, 2015
Export Citation:
Assignee:
Matsumoto Yushi-Seiyaku Co., Ltd.
International Classes:
C08J9/32; B29C44/00; C08K9/10; C08L101/00
Domestic Patent References:
| JP2012136695A | ||||
| JP2012140608A | ||||
| JP10212372A | ||||
| JP2012122025A |
Foreign References:
| WO2006030946A1 |