Alkoxylated Mannich condensates having fire retardancy propertie

Details Alkoxylated Mannich condensates having fire retardancy propertie Alkoxylated Mannich condensates having fire retardancy propertie

1983-10-25

1984-11-27

Cockeram, Herbert S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 528 73, C08G 1814, C08G 1832

Patent

active

044851952

ABSTRACT:
This invention relates to polyols that can be used to prepare rigid foams having improved fire retardancy properties, such polyols being prepared by alkoxylating with propylene oxide (which can contain some ethylene oxide) a reaction product prepared by heating a mixture of a Mannich condensate, a minor amount of melamine and 1 to 6 mols of formaldehyde, based on the melamine; the Mannich condensate having been prepared by reacting phenol or a C.sub.1 -C.sub.12 alkylphenol with formaldehyde and diethanolamine in the mol ratios of from 1:1:1 to about 1:3:3.

REFERENCES:
patent: 3297597 (1967-01-01), Edwards et al.
patent: 4137265 (1979-01-01), Edwards et al.
patent: 4221875 (1980-09-01), Yukuta et al.
patent: 4317889 (1982-03-01), Pcolinsky
patent: 4369258 (1983-01-01), Johnson

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