Process for the production of flame-retardant polyurethanes

Details Process for the production of flame-retardant polyurethanes Process for the production of flame-retardant polyurethanes

1974-02-13

1976-04-06

Ivy, C. Warren

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AR, 260 75NR, C08G 1850, C08G 1815

Patent

active

039488608

ABSTRACT:
Highly durable flame-retardant polyurethanes can be produced by the process wherein 3 mols of dibromoneopentyl glycol is reacted with 0.5 to 4 mols of phosphoric anhydride, the ester thus obtained is reacted with at least one member selected from the group consisting of alkylene oxides and haloalkylene oxides and then, the phosphorus compound thus obtained, as a portion of a polyhydroxyl component, is incorporated with another polyhydroxyl compound and reacted with a polyisocyanate component in the presence of a catalyst.

REFERENCES:
patent: 3093599 (1963-06-01), Mueller-Tamm
patent: 3157613 (1964-11-01), Anderson
patent: 3291867 (1966-12-01), Shew
patent: 3423486 (1969-01-01), Ratz
patent: 3784592 (1974-01-01), Leonard
patent: 3830886 (1974-08-01), Davis

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