THERMALLY EXPANDABLE MICROSPHERE AND PRODUCING METHOD FOR IT

摘要

PROBLEM TO BE SOLVED: To provide thermally expandable microspheres using no low-boiling point hydrocarbon and holding harmless water, which is dispersed finely and uniformly, for obtaining uniform fine bubbles after heating expansion. SOLUTION: The thermally expandable microspheres use a thermoplastic resin as a shell and a water-absorbing resin holding water as a core agent. COPYRIGHT: (C)2009,JPO&INPIT