Polymeric ethylene oxide/propylene oxide or ethylene oxide/butylene oxide ether carboxylic acids, a process for their preparation and their use
AssigneeHoechst Aktiengesellschaft
InventorsHelmut Diery, Norbert Wester
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Abstract
Polymeric ethylene oxide/propylene oxide or ethylene oxide/butylene oxide ether carboxylic acids of the formula ##STR1## wherein R denotes methyl or ethyl, preferably methyl, A denotes hydrogen or a metal cation, preferably Na.sup.(+) or K.sup.(+), X and Z together denote a number from 2 to 360, preferably from 2 to 140, y denotes a number from 15 to 70, preferably from 25 to 70 and n denotes a number from 1 to 10, a process for their preparation and their use as surfactants.
Claims3
A polymeric ethylene oxide/propylene oxide or ethylene oxide/butylene oxide ether carboxylic acid of the formula ##STR7## wherein R denotes methyl or ethyl, preferably methyl, A denotes hydrogen or a metal cation, preferably Na.sup.(+) or K.sup.(+), X and Z together denote a number from 2 to 360, preferably from 2 to 140, y denoted a number from 15 to 70, preferably from 25 to 70 and n denotes a number from 1 to 10.
Dependencies are inferred from the claim text.