Process for the production of flame-resistant, hard polyurethane

Details Process for the production of flame-resistant, hard polyurethane Process for the production of flame-resistant, hard polyurethane

1975-04-24

1977-05-24

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AM, 260 25AQ, 260 25BB, 260 775AR, C08G 1806, C08G 1814, C08G 1828

Patent

active

040254704

ABSTRACT:
The instant invention relates to a process for the production of flame-resistant, hard foams which contain urethane groups from polyisocyanates, active-hydrogen containing compounds, water and/or organic blowing agents, and flame-retarding agents, the improvement wherein the flame-retarding agent used is a mixture of (a) an addition compound of (1) a mono-alcohol, a polyalcohol, or mixtures thereof, and (2) a lactam, and (b) a phosphorous containing acid or acid ester.

REFERENCES:
patent: R27887 (1974-01-01), McGary et al.
patent: 2865912 (1958-12-01), Pohlemann et al.
patent: 2965584 (1960-12-01), Elkin
patent: 3758444 (1973-09-01), Wagner et al.
patent: 3770703 (1973-11-01), Gruber
Kimura et al.-Chem. Abs. 74, 55013g (1971).
Schoen et al.-Chem. Abs. 78, 161024m (1973).
Kreuder et al.-Chem. Abs. 82, 45176w (1975).

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