Method of making polyisocyanurate foam laminate

Details Method of making polyisocyanurate foam laminate Method of making polyisocyanurate foam laminate

1981-10-19

1982-12-07

Cockeram, H. S.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

156 79, 4284255, 4284258, 4283191, 4283193, 4283044, 521125, 521902, 521128, 521129, 521131, 521160, 521174, B32B 326, B32B 520, B32B 3114, B29D 714

Patent

active

043626785

ABSTRACT:
A process for producing a laminate of polyisocyanurate foam which is the reaction product of a polymethylene polyphenylisocyanate and a polyol which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane, ethoxylated pentaerythritol or ethoxylated glycerin. Laminates of such foams exhibit improved adhesion of the facing sheet.

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