| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a thermally-expandable microcapsule hardly causing coloration and/or smell when used for foam molding while having a high foaming magnification ratio and durability at high temperature: to provide a foamable thermoplastic resin master batch using the thermally-expandable microcapsule: to provide a foam molding body: and to provide a method for producing the thermally-expandable microcapsule.SOLUTION: A thermally-expandable microcapsule is such that a volatile expansion agent as a core agent is included in a shell comprising polymer. The shell is formed by polymerizing a monomer composition including a nitrile-based monomer, a monomer having an amide group and a chemical compound having a glycyl group in the molecules. The monomer having the amide group includes at least one kind selected from acrylamide and methacrylamide. The monomer composition includes 0.9-20 wt.% of the monomer having the amide group and 0.1-15 wt.% of the chemical compound having the glycyl group.</p> |
