Polyisocyanurate foam laminate

Details Polyisocyanurate foam laminate Polyisocyanurate foam laminate

1978-06-01

1980-07-15

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

156 79, 428313, 428315, 521902, 4284255, 4284258, B32B 326, B32B 520, B32B 3114

Patent

active

042129176

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.

REFERENCES:
patent: 2683730 (1954-07-01), Seeger et al.
patent: 3526652 (1970-09-01), Powers
patent: 3799896 (1974-03-01), Moss
patent: 3903346 (1975-09-01), DeLeon et al.
patent: 3940517 (1976-02-01), DeLeon
patent: 4025687 (1977-05-01), Wooler et al.
patent: 4110270 (1978-08-01), Narayan
patent: 4118533 (1978-10-01), Hipchen et al.
patent: 4129697 (1978-12-01), Schapel et al.

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