| abstract |
PROBLEM TO BE SOLVED: To provide a foamable phenolic resole resin composition which provides a resole resin foam having improved foaming curability, a high closed cell rate and excellent water absorption resistance, and a method for producing the same. . (A) A phenolic resole resin, At least one selected from (B) an acid curing catalyst, (C) a foaming agent, (D) a foam stabilizer, and (E) an organosilicon compound having a hydrolyzable group bonded to a silicon atom and a partially hydrolyzed condensate thereof. A foamable phenolic resole resin composition is produced by using the foamable phenolic resole resin composition containing at least one kind and mixing the components (C) and (E) in advance. |