Reaction of hypochlorites with polyoxypropylene glycols

Details Reaction of hypochlorites with polyoxypropylene glycols Reaction of hypochlorites with polyoxypropylene glycols

C - Chemistry, Metallurgy

08

G

C08G 65/48 (2006.01)

Patent

CA 2052451

REACTION OF HYPOCHLORITES WITH POLYOXYPROPYLENE GLYCOLS (Docket No. 80,913-Cl-F) ABSTRACT OF THE DISCLOSURE Polyoxypropylene diketones are prepared by initially adding predetermined amounts of a mono- or dicarboxylic acid having a pK < 4.5 and a water solubility at 25°C, of > 1%, a polyoxypropylene glycol and, optionally, water, to a reac- tion zone and thereafter adding an aqueous solution of an alkali metal or an alkaline earth metal hypochlorite oxidant to the reaction zone with agitation under reaction condi- tions including a temperature of about 10° to about 50°C., a pressure of about 0 to 1,000 psig. and a total reaction time of about 0.5 to 20 hours, whereby said polyoxypropylene glycol will be substantially selectively converted to the said corresponding diketone, and recovering said diketone.

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