C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
403/18, 260/457.
C07F 9/09 (2006.01) C07F 9/40 (2006.01) C08G 65/26 (2006.01) C08G 79/04 (2006.01)
Patent
CA 1050039
METHOD OF PREPARING STABLE CONDENSATION PRODUCTS USING A LEWIS ACID CATALYST Abstract of the Disclosure The neutralization of products which are phosphorus containing oligomers having Image linkages between phosphorus atoms and which are obtained by the self-condensation of .beta.-halo- alkyl esters of pentavalent phosphorus acids or by the condensa- tion of these esters with an alkyl ester of a pentavalent phos- phorus acid is accomplished by reaction with an alkylene oxide, either alone or in combination with water or an alcohol having the formula ROH where R is a C1-C20 alkyl group, and is enhanced by heating the products with a Lewis acid to promote alcoholysis reactions between labile groups contained therein and structures formed by alkylene oxide neutralization of free acid groups. The stabilized product formed by this process gives a better cure when incorporated in a polyurethane foam.
223289
Brokke Mervin E.
Honig Milton L.
Jaffe Fred
Shim Kyung S.
Walsh Edward N.
Na
Stauffer Chemical Company
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