SURFACTANT COMPOSITIONS

摘要

A surfactant composition comprising alkylarylsulfonate molecules wherein more than 30 wt.% of the alkylarylsulfonate molecules of the surfactant composition are species of the formula:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ [R - X - Ar (SO 3 ) - ]a [M n+ ] b
wherein:
X is a linear acyclic aliphatic hydrocarbyl chain;
R is bound to a non-terminal carbon atom of X and is selected from H and C1 to C3 alkyl groups;
X and R together have 10 or less carbon atoms, preferably 9 or 10 carbon atoms, most preferably 10 carbon atoms;
Ar is an aromatic group;
M is a cation or cation mixture,
n is selected from 1,2 and 3; and
a and b are selected such that the alkylarylsulfonate molecule is electroneutral.