发明授权
- 专利标题： Thermally expanded microspheres and a process for producing the same
- 专利标题（中）： 热膨胀微球及其制备方法
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申请号： US13355647申请日： 2012-01-23
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公开(公告)号： US08486531B2公开(公告)日： 2013-07-16
- 发明人: Toshiaki Masuda , Ichiro Takahara , Kenichi Kitano , Katsushi Miki , Takeshi Inohara , Takayuki Aoki
- 申请人： Toshiaki Masuda , Ichiro Takahara , Kenichi Kitano , Katsushi Miki , Takeshi Inohara , Takayuki Aoki
- 申请人地址： JP Yao-Shi
- 专利权人： Matsumoto Yushi-Seiyaku Co., Ltd.
- 当前专利权人： Matsumoto Yushi-Seiyaku Co., Ltd.
- 当前专利权人地址： JP Yao-Shi
- 代理机构： Global IP Counselors, LLP
- 优先权： JP2005-303626 20050916
- 主分类号： B32B1/00
- IPC分类号： B32B1/00 ; B32B5/16 ; C08J9/22 ; C08J9/00
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.