发明名称 |
THERMALLY EXPANDED MICROSPHERES AND A PROCESS FOR PRODUCING THE SAME |
摘要 |
The present invention provides heat-expanded microspheres having high packing efficiency, and a production method thereof. The heat-expanded microspheres are produced by expanding heat-expandable microspheres, which comprise shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin and have an average particle size from 1 to 100 micrometer, at a temperature not lower than their expansion initiating temperature, and the heat-expanded microspheres result in a void fraction not higher than 0.70. |
申请公布号 |
US2012121907(A1) |
申请公布日期 |
2012.05.17 |
申请号 |
US201213355647 |
申请日期 |
2012.01.23 |
申请人 |
MASUDA TOSHIAKI;TAKAHARA ICHIRO;KITANO KENICHI;MIKI KATSUSHI;INOHARA TAKESHI;AOKI TAKAYUKI;MATSUMOTO YUSHI-SEIYAKU CO., LTD. |
发明人 |
MASUDA TOSHIAKI;TAKAHARA ICHIRO;KITANO KENICHI;MIKI KATSUSHI;INOHARA TAKESHI;AOKI TAKAYUKI |
分类号 |
B32B1/00;B32B5/16 |
主分类号 |
B32B1/00 |
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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