Rigid and semiflexible polyurethane foams produced with phenol-a

Details Rigid and semiflexible polyurethane foams produced with phenol-a Rigid and semiflexible polyurethane foams produced with phenol-a

1979-09-18

1981-01-27

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, C08G 1814

Patent

active

042476550

ABSTRACT:
Rigid and semiflexible polyurethane foams having superior flame retardant properties are produced by incorporating into the pre-foam formulation the reaction product of a phenol, an aldehyde, and an aromatic amine.

REFERENCES:
patent: 3493257 (1970-02-01), Fitzgerald et al.
patent: 3514144 (1970-05-01), Alderfer
patent: 3558529 (1971-01-01), Whitman et al.
patent: 3580869 (1971-05-01), Rhodes et al.
patent: 3586649 (1971-06-01), Cobbledick
patent: 4107106 (1978-08-01), Dunleavy et al.

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