Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1978-10-23
1980-10-14
Weinblatt, Mayer
Compositions
Water-softening or purifying or scale-inhibiting agents
252DIG11, 252180, 252544, 252546, 25217421, 25217424, 134 2, 134 251, 134 252, C11D 320
Patent
active
042280273
ABSTRACT:
Disclosed herein are detergent compositions containing a water soluble organic surfactant and as a builder therefor a compound of the general formula: ##STR1## wherein X and X' are selected from the group consisting of hydrogen, alkyls having from 1 to 4 carbon atoms, alkoxys having from 1 to 4 carbon atoms, alkoxyalkyls having from 1 to 4 carbon atoms, hydroxyalkyls having from 1 to 4 carbon atoms, carboxyl in salt form (i.e., --COOM), and carboxymethyloxy in salt form (i.e., --OCH.sub.2 COOM), with the provision that only one of X and X' can be hydrogen, alkoxy, alkoxyalkyl, hydroxyalkyl, carboxyl in salt form or carboxymethyloxy in salt form; Y and Y' are selected from the group consisting of hydrogen, alkyls having from 1 to 2 carbon atoms, and hydroxyalkyls having from 1 to 4 carbon atoms; in the cases where both X and Y' or X' and Y are hydrogen or alkyls, X' and Y or X and Y' taken together can constitute a single bond which connects the .alpha. and .alpha.' carbon atoms to form a three-membered heterocylic ring; and M and M' are selected from the group consisting of alkali metals, ammonium and substituted ammonium cations.
REFERENCES:
patent: 3896040 (1975-07-01), Danesh
patent: 3954500 (1976-05-01), Brown, Jr.
patent: 4025450 (1977-05-01), Lamberti et al.
Konort Mark D.
Lamberti Vincent
Farrell James J.
Kelly Michael J.
Kurtz Melvin H.
Lever Brothers Company
Weinblatt Mayer
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