US 6,306,817 B1 · Alkylbenzenesulfonate surfactants

Abstract

A surfactant composition comprising: alkylarylsulfonate surfactant system comprising at least two isomers of the alkylarylsulfonate surfactant of the formula: wherein: L is an acyclic aliphatic hydrocarbyl of from 6 to 18 carbon atoms in total; M is a cation or cation mixture and q is the valence thereof; and b are numbers selected such that said composition is electroneutral; R′ is selected from H and C1 to C3 alkyl; R″ is selected from H and C1 to C3 alkyl; R′″ is selected from H and C1 to C3 alkyl; any of R′ and R″ is nonterminally attached to L and at least one of R′ and R″ is C1 to C3 alkyl; and A is aryl; and wherein: said alkylarylsulfonate surfactant system comprises two or more isomers with respect to positions of attachment of R′, R″ and A to L; in at least about 60% of said composition, A is attached to L in the position which is selected from positions alpha- and beta- to either of the two terminal carbon atoms thereof; and wherein further said alkylarylsulfonate surfactant system has at least one (preferably both) of the following properties: said alkylarylsulfonate surfactant system has a ratio of nonquatemary to quaternary carbon atoms in L of at least about 10:1 by weight, when said quaternary carbon atoms are present; and there is no more than 40% by weight loss as measured by Hardness Tolerance Test.

Claims41

Dependent claims

A surfactant composition comprising:

alkylarylsulfonate surfactant system comprising at least two isomers of the alkylarylsulfonate surfactant of the formula:
wherein:
L is an acyclic aliphatic hydrocarbyl of from 6 to 18 carbon atoms in total;
M is a cation or cation mixture and q is the valence thereof;
a and b are numbers selected such that said composition is electroneutral;
R′ is selected from H and C1 to C3 alkyl;
R′ is selected from H and C1 to C3 alkyl;
R″′ is selected from H and C1 to C3 alkyl;
both R′ and R″ are nonterminally attached to L and at least one of R′ and R″ is C1 to C3 alkyl;
and
A is aryl;
and
wherein:
said alkylarylsulfonate surfactant system comprises two or more isomers with respect to positions of attachment of R′, R″ and A to L;
in at least about 60% of said alkylarylsulfonate surfactant system, A is attached to L in the position which is selected from positions alpha- and beta- to either of the two terminal carbon atoms thereof;
and
wherein further said alkylarylsulfonate surfactant system has at least one of the following properties:
said alkylarylsulfonate surfactant system has a ratio of nonquatemary to quaternary carbon atoms in L of at least about 10:1 by weight, when said quaternary carbon atoms are present;
and
there is no more than 40% by weight loss as measured by Hardness Tolerance Test.

17 more elements

A surfactant composition comprising:

alkylarylsulfonate surfactant system comprising at least two isomers, counted exclusive of ortho-, meta-, para-, and stereoisomers, of an alkyluylaulfonate surfactant of the formula:
wherein M is a cation, q is the valence of said cation, a and b are numbers selected such that said composition is electroneutral;
A is aryl;
R′″ is selected from H and C1 to C3 alkyl;
R′ is selected from hydrogen and C1 to C3 alkyl;
R″ is selected from hydrogen and C1 to C3 alkyl;
and R″″ is selected from hydrogen and C1 to C4 alkyl;
v is an integer from 0 to 10;
x is an integer from 0 to 10;
y is an integer from 0 to 10;
wherein:
the total number of carbon atoms attached to A is less than about 20;
said alkylarylsulfonate surfactant system comprises two or more isomers with respect to positions of attachment of R′, R″ and A to the moiety R″″—C(—)H(CH2)vC(—)H(CH2)xC(—)H(CH2)y—CH3 of this formula;
at least one of R′ and R″ is C1 to C3 alkyl;
when R″″ is C1, the sum of v+x+y is at least 1;
and when R″″ is H, the sum of v+x+y is at least 2;
and
in at least about 60% of said alkylarylsulfonate surfactant system, A is attached to the moiety R″″—C(—)H(CH2)vC(—)H(CH2)xC(—)H(CH2)y—CH3 in the position which is selected from positions alpha- and beta- to either of the two terminal carbon atoms thereof;
wherein further said alkylarylsulfonate surfactant system has at least one of the following properties:
said alkylarylsulfonate surfactant system has a ratio of nonquatemary to quaternary carbon atoms in the moiety R″″—C(—)H(CH2)vC(—)H(CH2)xC(—)H(CH2)y—CH3 of at least about 10:1 by weight, when said quaternary carbon atoms are present;
and
there is no more than 40% by weight loss as measured by Hardness Tolerance Test.

19 more elements

A surfactant composition comprising:

a) from about 0.01% to about 99.99% by weight of an alkylarylsulfonate surfactant system comprising at least two isomers of the alkylarylsulfonate surfactant of the formula:
wherein:
L is an acyclic aliphatic hydrocarbyl of from 6 to 18 carbon atoms in total;
M is a cation or cation mixture and q is the valence thereof;
a and b are numbers selected such that said composition is electroneutral;
R′ is selected from H and C1 to C3 alkyl;
R″ is selected from H and C1 to C3 alkyl;
R′″ is selected from H and C1 to C3 alkyl;
both R′ and R″ are nonterminally attached to said L and at least one of R′ and R″ is C1 to C3 alkyl;
and
A is aryl;
and
wherein:
said alkylarylsulfonate surfactant system comprises two or more isomers with respect to positions of attachment of R′, R″ and A to L;
in at least about 60% of said alkylarylsulfonate surfactant system, A is attached to L in the position which is selected from positions alpha- and beta- to either of the two terminal carbon atoms thereof;
and
wherein further said alkylarylsulfonate surfactant system has at least one of the following properties:
said alkylarylsulfonate surfactant system has a ratio of nonquaternary to quaternary carbon atoms in L of at least about 10:1 by weight, when said quaternary carbon atoms are present;
and
there is no more than 40% by weight loss as measured by Hardness Tolerance Test;
and
b) from about 0.01% to about 99.99% by weight of at least one isomer of the linear analog of said alkylarylsulfonate surfactant (a).

19 more elements

A surfactant composition comprising:

a) from about 0.01% to about 99.99% by weight of an alkylarylsulfonate surfactant system comprising at least two isomers, counted exclusive of ortho-, meta-, para- and stereoisomers, of an alkylarylsulfonate surfactant of the formula:
wherein M is a cation, q is the valence of said cation, a and b are numbers selected such that said composition is electroneutral;
A is aryl;
R′″ is selected from H and C1 to C3 alkyl;
R′ is selected from hydrogen and C1 to C3 alkyl;
R″ is selected from hydrogen and C1 to C3 alkyl;
and R″″ is selected from hydrogen and C1 to C4 alkyl;
v is an integer from 0 to 10;
x is an integer from 0 to 10;
y is an integer from 0 to 10;
wherein:
the total number of carbon atoms attached to A is less than about 20;
said alkylarylsulfonate surfactant system comprises two or more isomers with respect to positions of attachment of R′, R″ and A to the moiety R″″—C(—)H(CH2)vC(—)H(CH2)xC(—)H(CH2)y—CH3 of this formula;
at least one of R′ and R″ is C1 to C3 alkyl;
when R″″ is C1, the sum of v+x+y is at least 1;
and when R″″ is H, the sum of v+x+y is at least 2;
and
in at least about 60% of said alkylarylsulfonate surfactant system, A is attached to the moiety R″″—C(—)H(CH2)vC(—)H(CH2)xC(—)H(CH2)y—CH3 in the position which is selected from positions alpha- and beta- to either of the two terminal carbon atoms thereof;
and
wherein further said alkylarylsulfonate surfactant system has at least one of the following properties:
said alkylarylsulfonate surfactant system has a ratio of nonquaternary to quaternary carbon atoms in the moiety R″″—C(—)H(CH2)vC(—)H(CH2)xC(—)H(CH2)y—CH3 of at least about 10:1 by weight, when said quaternary carbon atoms are present;
and
there is no more than 40% by weight loss as measured by Hardness Tolerance Test;
and
b) from about 0.01% to about 99.99% by weight of at least one isomer of the linear analog of said alkylarylsulfonate surfactant (a).

22 more elements

Dependencies are inferred from the claim text.

Alkylbenzenesulfonate surfactants

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Alkylbenzenesulfonate surfactants

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Abstract

Claims41