| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition good in coatability, adhesivity and foam stability and high in expansion ratio, by blending an organic compound having double bond and free from any siloxane unit, SiH-bearing polysiloxane or the like, and OH group-bearing compound. SOLUTION: This expandable resin composition good in coatability, adhesivity and foam stability and high in expansion ratio comprises (A) an organic compound having C=C double bond and free from any siloxane unit in the molecular skeleton, (B) a SiH group-bearing compound having at least part of a polyorganohydrogensiloxane having structure shown by formula I ((m) >=2; (n), (l) and (p) are each >=0; 10<=(m+n+l)×(p)<=80; R<1> is a polyoxyalkylene chain 100-10,000 in molecular weight; R<2> to R<5> are each H or a 1-20C hydrocarbon, and may contain at least one phenyl group) or formula II and modified with polyoxyalkylene chain, and (C) an OH group-bearing compound. |
