发明名称 |
HEAT-EXPANDABLE MICROSPHERES, METHOD FOR PRODUCING THE SAME, AND APPLICATION THEREOF |
摘要 |
Heat-expandable microspheres include a shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin, have a maximum expanding ratio not lower than 50 times, and are thermally expanded into hollow particulates having a repeated-compression durability not lower than 75 percent. The method of producing the heat-expandable microspheres includes the steps of dispersing an oily mixture containing a polymerizable component and the blowing agent in an aqueous dispersing medium containing a specific water-soluble compound and polymerizing the polymerizable component contained in the oily mixture.
|
申请公布号 |
US2009149559(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
US20060089600 |
申请日期 |
2006.11.16 |
申请人 |
MATSUMOTO YUSHI-SEIYAKU CO., LTD |
发明人 |
MASUDA TOSHIAKI;TAKAHARA ICHIRO;KITANO KENICHI;MIKI KATSUSHI;INOHARA TAKESHI;FUKUDA TAKEYOSHI;AOKI TAKAYUKI;KAWANAMI SATOSHI |
分类号 |
C08J9/228;C08J9/00 |
主分类号 |
C08J9/228 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|