MICROSPHERE, THERMALLY FOAMABLE RESIN COMPOSITION COMPRISING SAID MICROSPHERE, STRUCTURE MEMBER, MOLDED BODY, AND METHOD FOR MANUFACTURING SAID STRUCTURE MEMBER AND SAID MOLDED BODY

摘要

A microsphere including an outer shell and a foaming agent sealed into the shell, the foaming agent including a compound that vaporizes and becomes a gas upon being heated, wherein when the average particle size (D50) of the microsphere is given as A (µm) and the amount of the foaming agent for said microsphere is B1 (mass%), relationships in Relationships (1) and (2) below are satisfied: $50\le \mathrm{A}\le 190\mathop{\mathrm{image}}$$\mathrm{B}1\le -0.14\times \mathrm{A}+33\mathop{\mathrm{image}}$