| 摘要 |
<p>Heat-expandable microcapsules produced from acrylonitrile and an N-substituted maleimide as the major polymerizable monomers and other polymerizable monomers comprising a monomer giving a homopolymer having a Tg of 50 to 200 °C and an unsaturated carboxylic acid (or anhydride) having polymerizability; a resin foam made using the same; and a process for producing a foamed resin composite. The microcapsules are less apt to discolor even upon thermal expansion at 200 °C or higher. The resin foam and the foamed resin composite are capable of having a processed surface, e.g., a matte surface giving a bulky feeling.</p> |
