Title:
発泡性ポリスチレン系樹脂粒子、ポリスチレン系予備発泡粒子、発泡成形体、及びそれらの製造方法
Document Type and Number:
Japanese Patent JP7183161
Kind Code:
B2
Abstract:
The present invention has an object to provide (i) expandable polystyrene-based resin particles from which a foamed molded product that makes it possible to eliminate or reduce a rubbing sound is obtained without the need to apply a coating composition in a large amount and while contamination of a pre-expanding machine and/or a molding mold is reduced and (ii) a method for producing the expandable polystyrene-based resin particles. The object can be attained by a method for producing expandable polystyrene-based resin particles, the method including the steps of: a) producing polystyrene-based resin particles containing a styrene-based monomer and a polysiloxane-containing macro monomer; and b) producing the expandable polystyrene-based resin particles by impregnating an expanding agent into the polystyrene-based resin particles, in the step a), an initiator being added simultaneously with addition of the polysiloxane-containing macro monomer, the initiator causing generation of an alkoxy radical and/or a carbonate radical.
Inventors:
Mitsuhiro Tamura
Youichi Ohara
Youichi Ohara
Application Number:
JP2019534563A
Publication Date:
December 05, 2022
Filing Date:
August 01, 2018
Export Citation:
Assignee:
Kaneka Corporation
International Classes:
C08J9/16; C08F290/14; C08J9/18
Domestic Patent References:
| JP47013059B1 | ||||
| JP2016183255A | ||||
| JP2008260795A | ||||
| JP5054854B2 | ||||
| JP2012167148A | ||||
| JP57051729A | ||||
| JP2018145285A |
Foreign References:
| WO2006106653A1 |
Attorney, Agent or Firm:
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK
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