| 摘要 |
PROBLEM TO BE SOLVED: To produce the subject particle capable of manifesting good expansibility and processability and providing a highly heat-resistant expansion molding product by using a specific (meth)acrylic ester and a polymerizable group- containing silane compound in combination as a monomer component. SOLUTION: This expandable resin particle is produced by impregnating (A) a polymeric particle, prepared by carrying out the suspension polymerization of a monomer component containing (A1 ) 50-95wt.% styrene-based monomer, (A2 ) 5-50wt.% tricyclo[5.2.1.0<2> ,<6> ]dec-8-yl (meth)acrylate and (A3 ) a polymerizable functional group-containing silane [e.g. a compound represented by the formula X-Si-Yn -Zm X is an organic group having a copolymerizable double bond such as 3-methacryloxypropyl; Y is a hydrolyzable group such as methoxy; Z is an inert monovalent organic group; (n) is 1-3; (m) is [3-(n)]}] in an amount of 0.1-5wt.% based on the total amount of the components A1 and A2 with (B) a readily volatile foaming agent (e.g. propane, butane or pentane). |
