Expandable styrene series resin composition and process for production thereof

摘要

An expandable styrene series resin composition comprising a styrene series resin containing in its molecular structure a group of the formula: -SiYnR3-n (I) wherein R is an inert monovalent organic group; Y is a hydrolyzable group; and n is an integer of 1 to 3, and a blowing agent, and if necessary, one or more organosilane compounds having at least two hydrolyzable groups in its molecule, can give foamed articles having excellent heat resistance as well as high degree of expansion and good physical and chemical properties.