Oligomeric ester chain condensates of substituted 1-hydroxy-1,1-

Details Oligomeric ester chain condensates of substituted 1-hydroxy-1,1- Oligomeric ester chain condensates of substituted 1-hydroxy-1,1-

1978-09-11

1980-02-26

Sutto, Anton H.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

252341, C07F 940

Patent

active

041906152

ABSTRACT:
Phosphonic acid ester condensate oligomers are disclosed which are oligomeric ester condensates of alkyl-1-hydroxy-1,1-diphosphonic acid having the formula: ##STR1## where R.sub.1 and R.sub.2 each represent a group having the formula C.sub.x H.sub.2x+1, where x is from 6 to 13; Y is ##STR2## or hydrogen; M is a water soluble cation such as Na, K or NH.sub.4, and n is 1 or greater. The use of these materials as reverse emulsion breakers is also disclosed, as is a method for their preparation.

REFERENCES:
patent: 3214454 (1965-10-01), Blaser et al.
patent: 3621081 (1971-11-01), Prentice

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