Oligomeric ester chain condensates of substituted...

Details Oligomeric ester chain condensates of substituted... Oligomeric ester chain condensates of substituted...

C - Chemistry, Metallurgy

07

F

134/56, 260/458.

C07F 9/40 (2006.01) B01F 17/14 (2006.01) C07F 9/38 (2006.01) C08G 79/04 (2006.01)

Patent

CA 1133926

Abstract of the Invention A novel method for preparing phosphonic acid ester condensate oligomers are disclosed which are oligomeric ester condensates of alkyl-1-hydroxy-1,1-di- phosphonic acid having the formula: Image where R1 and R2 each represent a group having the formula CxH2x+1, where x is from 1 to 13; Y is Image , Image , Image or hydrogen; M is a water soluble cation such as Na, K or NH4, and n is 1 or greater. The use of these materials as reverse emulsion breakers wherein x is from 6 to 13 is also disclosed and these compounds are novel. Compounds wherein x is from 2 to 5 are also novel.

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