EXPANDABLE PHENOLIC RESOL RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide an expandable phenolic resol resin composition which solves the problem concerning the separation of sheet-form facing materials established on surfaces and yields an environmentally compatible phenolic foam showing an improved resistance to water absorption or a resistance to heat insulation deterioration. SOLUTION: The expandable phenolic resol resin composition contains (A) a phenolic resol resin, (B) an acidic hardener, (C) a foaming agent essentially comprising cyclopentane, (D) a partial hydrolytic condensate of a hydrolyzable group-containing organosilicon compound and (E) a foam stabilizer.