Polyisocyanurate foam and process therefor

Details Polyisocyanurate foam and process therefor Polyisocyanurate foam and process therefor

1980-01-18

1982-01-19

Cockeram, H. S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

4284255, 4284258, 4283191, 4283193, 4283044, 521125, 521128, 521129, 521131, 521160, 521174, 521902, C08G 1814, C08G 1822, C08G 1876, B32B 326

Patent

active

043118011

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: 4121958 (1978-10-01), Koontz
patent: 4129697 (1978-12-01), Schapel et al.

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