Process for producing a polyisocyanurate foam and a polyisocyanurate foam laminate and foam and laminate obtained by this process.

摘要

A process for producing a polyisocyanurate foam (53') and a laminate of polyisocyanurate foam (57,57') which is the reaction product of a potymethylene polyphenylisocyanate and a polyo! which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane ethoxylated pentaerythritol or ethoxylated glycerin

Laminates of such foams exhibit improved adhesion of the facing sheet (51).