Process for the preparation of white graft polymer...

Details Process for the preparation of white graft polymer... Process for the preparation of white graft polymer...

C - Chemistry, Metallurgy

08

L

400/105, 403/14,

C08L 51/08 (2006.01) C08F 283/06 (2006.01) C08F 291/08 (2006.01) C08F 299/02 (2006.01) C08G 18/63 (2006.01) C08G 63/676 (2006.01)

Patent

CA 1218174

PROCESS FOR THE PREPARATION OF WHITE GRAFT POLYMER DISPERSIONS AND FLAME-RETARDANT POLYURETHANE FOAMS Abstract of the Disclosure White graft polymer dispersions in polyoxyalkylene polyether polyols are employed together with flame retardant compounds to prepare flame retardant polyurethane foams. The polymer dispersions employ less than 0.1 mole of induced unsaturation per mole of polyol mixture. Improved processes for the preparation of these polymer dispersions employ either maleate or fumarate derived polyetherester polyols or polyetherester polyols prepared by reacting a polyoxy- alkylene polyether polyol with a compound selected from the group consisting of maleic acid, maleic anhydride and fumaric acid and an alkylene oxide in the presence of salts and oxides of divalent metals.

424626

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