C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
403/18, 260/457.
C07F 9/09 (2006.01) C07F 9/02 (2006.01) C07F 9/40 (2006.01) C08G 79/04 (2006.01) C08J 9/00 (2006.01)
Patent
CA 1050560
METHOD OF PREPARING STABLE CONDENSATION PRODUCTS USING A WATER-ALKYLENE OXIDE TREATMENT AND PRODUCTS THEREFROM Abstract of the Disclosure Products which are phosphorus containing oligomers having Image linkages between phosphorus atoms and which are obtained by the self-condensation of.beta. -haloalkyl esters of pentavalent phosphorus acids or the condensation of these esters with alkyl esters of a pentavalent phosphorus acid are treated after residual acidity has been neutralized, e.g., with an alkylene oxide,with water and then with an alkylene oxide for a period of time which is sufficient to enable the water to open labile groups contained in the product and the alkylene oxide to neutralize any further acidity generated by the opening of such groups. The stabilized product formed by this process when incorporated in a polyurethane foam gives a foam having superior green strength to a polyurethane foam which is not treated in accordance with the invention.
223524
Shim Kyung S.
Walsh Edward N.
Na
Stauffer Chemical Company
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