发明名称 |
PRE-EXPANDED PARTICLES, PROCESS FOR PRODUCING THE SAME, AND EXPANDED MOLDED ARTICLE |
摘要 |
A process for producing pre-expanded particles, comprising the steps of: impregnating 100 parts by weight of polystyrene type resin particles with a volatile blowing agent in the presence of 0.1 to 2.0 parts by weight of a first antistatic agent to obtain expandable resin particles; and bringing 100 parts by weight of the expandable resin particles into contact with 0.1 to 2.0 parts by weight of a second antistatic agent in the presence of an antifoaming agent, and then pre-expanding the particles, thereby obtaining pre-expanded particles, wherein the second antistatic agent and the antifoaming agent are used in a ratio by weight of 1:0.04 to 1.50.
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申请公布号 |
US2011251296(A1) |
申请公布日期 |
2011.10.13 |
申请号 |
US200913140231 |
申请日期 |
2009.12.25 |
申请人 |
SEKISUI PLASTICS CO., LTD. |
发明人 |
GONDO YUICHI;MATSUMURA HIDEYASU |
分类号 |
C08J9/18;C08K5/06;C08L25/06 |
主分类号 |
C08J9/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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