| 摘要 |
PROBLEM TO BE SOLVED: To provide an expandable styrene resin particle exhibiting an excellent balance among properties which, even when it is used for a container or the like for some specific contents having high permeability, hardly allows the contents to permeate into an outer wall of the container or the inside of the molded article, hardly causes mold stains, assures good operating efficiencies, and can be molded in a short time, and an expansion-molded article. SOLUTION: The expandable styrene resin particle comprises an expandable styrene resin particle as the main body having the surface thereof coated with gluconic acid or a gluconate salt represented by general formula (1) (wherein R is a hydrogen atom or a metal, and when the metal is bivalent or higher, R is bonded to the part other than R in general formula (1) in the number corresponding to the valence). The expansion-molded article is obtained by expansion molding the particle. COPYRIGHT: (C)2005,JPO&NCIPI |
