| 摘要 |
PROBLEM TO BE SOLVED: To provide black styrene-modified polyethylene-based resin particles, excellent in blackness, while keeping rigidity, impact resistance, and chemical resistance good, and capable of giving a foamed molded product in which remaining of a styrene monomer is sharply decreased. SOLUTION: This method for producing the black styrene-modified polyethylene-based resin particles comprises subjecting a styrene-based monomer to suspension polymerization in the presence of polymerization initiators in a dispersion which is formed by dispersing carbon-containing polyethylene-based resin particles in an aqueous suspension containing a dispersing agent, wherein a first polymerization initiator which generates a tertiary alkoxy radical and has a 10-hr half-life temperature of≤100°C and a second polymerization initiator which comprises 2,2-bis(t-butylperoxy)butane are together used as the polymerization initiators. COPYRIGHT: (C)2006,JPO&NCIPI |
