发明名称 |
POLYLACTIC ACID RESIN FOAM PARTICLE FOR IN-MOLD FOAM FORMING, PROCESS FOR PRODUCING THE SAME, AND PROCESS FOR PRODUCING POLYLACTIC ACID RESIN FOAM MOLDING |
摘要 |
The present invention provides a method for producing polylactic acid-based resin foamed particles for in-mold foam-molding from which a polylactic acid-based resin foam-molded article excellent in heat resistance and mechanical strength can be obtained by in-mold foam-molding. In the method of the present invention for producing polylactic acid-based resin foamed particles for in-mold foam-molding, a rotary blade is rotated at a given rotation speed while being always in contact with the front end surface of a nozzle and a polylactic acid-based resin extrudate extrusion-foamed through a nozzle is cut with the rotary blade, so that it is possible to cut the polylactic acid-based resin extrudate surely to obtain substantially spherical polylactic acid-based resin foamed particles. Therefore, when polylactic acid-based resin foamed particles are used for in-mold foam-molding, the polylactic acid-based resin foamed particles foam uniformly in all directions and, as a result, the foamed particles are thermal fusin bonded to unite together strongly in all direction. |
申请公布号 |
EP2135724(A4) |
申请公布日期 |
2015.12.23 |
申请号 |
EP20080739044 |
申请日期 |
2008.03.27 |
申请人 |
SEKISUI PLASTICS CO., LTD. |
发明人 |
HIRAI, TAKAAKI;NISHIJIMA, KATSUNORI;OCHIAI, TETSUYA |
分类号 |
C08J9/16;B29C44/34;C08J9/12;C08J9/14;C08J9/18;C08J9/232 |
主分类号 |
C08J9/16 |
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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