A heat-expandable microspheres having high heat resistance and high solvent resistance, a production process thereof and application thereof are provided.
The heat-expandable microspheres include a shell of a thermoplastic resin and a thermally vaporizable blowing agent being encapsulated therein. The thermoplastic resin includes a copolymer produced by polymerizing a polymerizable component containing a carboxyl-group-containing monomer. The surface of the heat-expandable microspheres is treated with an organic compound containing a metal of the Groups from 3 to 12 in the Periodic Table.
本发明提供了一种具有高耐热性和高耐溶剂性的可热膨胀微球及其生产工艺和应用。
热膨胀微球包括热塑性
树脂外壳和封装在其中的可热蒸发发泡剂。热塑性
树脂包括通过聚合含有羧基单体的可聚合成分而产生的共聚物。热膨胀微球的表面用含有元素周期表 3 至 12 族
金属的有机化合物处理。