Integral skin rigid polyurethane structural foam

Details Integral skin rigid polyurethane structural foam Integral skin rigid polyurethane structural foam

1992-07-15

1993-11-23

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521167, 521174, C08G 1814

Patent

active

052644618

ABSTRACT:
The invention relates to rigid integral skin polyurethane structural foam having high impact strength, high heat distortion, and flame retardant properties. The foam is prepared from triisopropanolamine-initiated polyoxyalkylene (TIPA) polyether polyols oxyalkylated with a compound producing primary hydroxyl functional termination. The polyether polyol is advantageously of a molecular weight sufficient to enable TIPA to flow well while retaining its flame retardant characteristics in the foam.

REFERENCES:
patent: 4588803 (1986-05-01), Christman
patent: 4605725 (1986-08-01), Christman
patent: 4780482 (1988-10-01), Krueger

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