Polyol composition and a process for the preparation of flame-re

Details Polyol composition and a process for the preparation of flame-re Polyol composition and a process for the preparation of flame-re

1987-06-17

1988-08-30

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

25218227, C08G 1814

Patent

active

047677953

ABSTRACT:
Flame resistant polyurethane foams are made by reacting a polyisocyanate with a specific polyol composition. This polyol composition is made up of (a) at least 10 wt. % of a polyether formed by the addition of alkylene oxide(s) to 2,3- and/or 3,4-tolylenediamine having an OH number of from 400 to 520, (b) at least 20-50 wt. % flame retardant containing phosphorus and/or halogen, (c) 5-10 wt. % chain lengthening or cross-linking agent, (d) surface active agents, (e) water and (f) 0-30 wt. % polyhydroxyl compound(s) other than (a) having a molecular weight of from 300 to 10,000.

REFERENCES:
patent: 4209609 (1980-06-01), Haas
patent: 4397966 (1983-08-01), Stolz et al.
patent: 4410641 (1983-10-01), Narayan et al.
patent: 4421871 (1983-12-01), Korczak et al.
patent: 4469822 (1984-09-01), Stolz et al.
patent: 4562290 (1985-12-01), Korczak et al.

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