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US 5,160,450 AGranted
Surface-active agents having two hydrophobic chains and two hydrophilic groups
AssigneeLion Corporation
InventorsMitsuo Okahara, Araki Masuyama
Life of this patent
Estimating the term…
Abstract
Novel surface active agents in the form of compounds of formulas (I) and (II) show higher surface activity. ##STR1## R.sup.1 and R.sup.2 are alkyl or alkenyl groups having 6 to 20 carbon atoms, Z is H, SO.sub.3 H, PO(OH).sub.2, CH.sub.2 COOH, (CH.sub.2).sub.2 SO.sub.3 H or a salt thereof, R.sup.3 and R.sup.4 are alkyl or alkenyl groups having 5 to 19 carbon atoms, R.sup.5 and R.sup.6 are alkyl groups having 1 to 4 carbon atoms, and n is a number of from 1 to 20.
Claims18
A surface-active agent, comprising at least one compound selected from the group consisting of a compound of the following general formula (I):
- ##STR22## wherein R.sup.1 and R.sup.2 are independently selected from alkyl and alkenyl groups having 6 to 20 carbon atoms, Z is selected from the group consisting of SO.sub.3 H, PO(OH).sub.2, CH.sub.2 COOH, (CH.sub.2).sub.2 SO.sub.3 H and salts thereof, and n is a number of from 1 to 20, and a compound of the following general formula (II):
- ##STR23## wherein R.sup.3 and R.sup.4 are independently selected from alkyl and alkenyl groups having 5 to 19 carbon atoms, R.sup.5 and R.sup.6 are independently selected from alkyl groups having 1 to 4 carbon atoms, and n is a number of from 1 to 20, wherein the relative proportion of compound (I) to compound (II) is in the range from 100:0 to 0:100, w/w, and wherein said agent is useful as a surface-active agent.
Dependencies are inferred from the claim text.