公开(公告)号：US5536756A

公开(公告)日：1996-07-16

申请号：US311714

申请日：1994-09-23

申请人： Sueo Kida ,  Kenichi Kitano ,  Kyuno Seiji

发明人： Sueo Kida ,  Kenichi Kitano ,  Kyuno Seiji

IPC分类号： B01J13/02 ,  B01J13/14 ,  C01B37/00 ,  B01J13/18 ,  C08J9/14

CPC分类号： B01J13/14 ,  Y10T428/2987

摘要： The present invention provides a thermoplastic microcapsule which is softened by heat, has a good thermoexpandability, and can provide a MICROBALLOON which shows a high heat resistance after thermoexpanded; such a thermoexpandable microcapsule is composed of a shell and an expanding agent therein, in which said shell is made from a copolymer essentially consisting of a polymerizable monomer having two or more polymerizable double bonds and a monomer which can produce a homopolymer having a high glass transition temperature, and said expanding agent is vaporizable at a temperature lower than the softening temperature of the copolymer.

摘要翻译： 本发明提供一种通过热软化的热塑性微胶囊，具有良好的热膨胀性，并且可以提供在热膨胀后显示出高耐热性的MICROBALLOON; 这种可热膨胀的微胶囊由壳和其中的发泡剂组成，其中所述外壳由基本上由具有两个或多个可聚合双键的可聚合单体组成的共聚物和可以生产具有高玻璃化转变率的均聚物的单体制成 并且所述发泡剂在低于共聚物的软化温度的温度下可蒸发。