Title:
EXPANDABLE POLYSTYRENE RESIN PARTICLES, POLYSTYRENE PRE-EXPANDED PARTICLES, AND FOAM MOLDED BODY
Document Type and Number:
WIPO Patent Application WO/2019/026972
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide expandable polystyrene resin particles which are capable of suppressing scraping noise without contaminating a pre-expanding machine or a molding die, and which enable the achievement of a foam molded body that exhibits excellent fusion properties. The purpose is able to be achieved by expandable polystyrene resin particles which are formed from a styrene monomer and a polysiloxane-containing macromonomer, and which are characterized in that: an external additive that has a melting point of 40°C or higher is contained therein; and a foam molded body that is obtained by pre-expanding and subsequently molding the expandable polystyrene resin particles has a coefficient of static friction of 4.0 or less.
Inventors:
TAMURA MITSUHIRO (JP)
OHARA YOICHI (JP)
OHARA YOICHI (JP)
Application Number:
PCT/JP2018/028907
Publication Date:
February 07, 2019
Filing Date:
August 01, 2018
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08J9/232; C08F290/00
Foreign References:
| JP2016183255A | 2016-10-20 | |||
| JP2015214641A | 2015-12-03 | |||
| JP2004155870A | 2004-06-03 | |||
| JPH08109279A | 1996-04-30 | |||
| JPH04202443A | 1992-07-23 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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