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US 4,052,487 AGranted
Diol-phosphonates
AssigneeSociete Nationale des Poudres et Explosifs
InventorsGeorges L. Sturtz, Serge L. Lecolier, Jean-Claude Clement, Jean Marie Biehler
Life of this patent
Estimating the term…
Abstract
The novel diol-phosphonates of the formula: ##STR1## in which R.sub.1 is alkyl with 1 to 4 carbon atoms, R.sub.2 is hydrogen, methyl, or ethyl, and A is --CH.sub.2 --CH.sub.2 --CH.sub.2 --, or ##STR2## are useful as flameproofing additives in polyurethane foams.
Claims6
A compound of the formula:
- ##STR75## in which R.sub.1 is an alkyl group with 1 to 4 carbon atoms, R.sub.2 is hydrogen, methyl, or ethyl, and A is --CH.sub.2 --CH.sub.2 --CH.sub.2 --, or ##STR76##
Dependencies are inferred from the claim text.