Compositions comprising a fluorosurfactant and a hydrotrope
AssigneeE. I. Du Pont de Nemours and Company
InventorsThomas G. Calvarese, Yamaira Gonzalez, Viacheslav A. Petrov, Weiming Qiu, Anilkumar Raghavanpillai
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Abstract
Compositions comprising a fluorosurfactant and a hydrotrope are disclosed. The hydrotropes are either cationic or anionic benzene derivatives comprising fluoro-substituted functional groups and polar groups. The compositions are useful in various surfactant applications.
Claims11
A composition comprising a fluorosurfactant and a hydrotrope wherein the hydrotrope comprises a compound selected from the group consisting of compounds of formula (I) and compounds of formula (II):
- wherein:
- R=Rf or ORf,
- Rf=(per)fluorinated C1-C3 alkyl;
- n=1-3;
- and
- G=—SO3M, —OSO3M, —OPO3(M1)(M2) or —PO3(M1)(M2),
- M=H, Na, K, or NH4,
- M1=H, Na, K, or NH4, and
- M2=H, Na, K, or NH4;
- wherein:
- R=Rf or ORf,
- Rf=(per)fluorinated C1-C3 alkyl;
- n=1-3;
- R1=H or C1-C3 alkyl;
- R2=H or C1-C3 alkyl;
- and
- X=Cl, Br, or I;
- and wherein the weight ratio of the fluorosurfactant to the hydrotrope is in the range of 1:10 to 10:1.
A method of altering the surface behavior of an agent, comprising adding to the agent a composition comprising a fluorosurfactant and a hydrotrope wherein the hydrotrope comprises a compound selected from the group consisting of compounds of formula (I) and compounds of formula (II):
- wherein:
- R=Rf or ORf,
- Rf=(per)fluorinated C1-C3 alkyl;
- n=1-3;
- and
- G=—SO3M, —OSO3M, —OPO3(M1)(M2), or —PO3(M1)(M2),
- M=H, Na, K, or NH4,
- M1=H, Na, K, or NH4, and
- M2=H, Na, K, or NH4;
- wherein:
- R=Rf or ORf,
- Rf=(per)fluorinated C1-C3 alkyl;
- n=1-3;
- R1=H or C1-C3 alkyl;
- R2=H or C1-C3 alkyl;
- and
- X=Cl, Br, or I;
- and wherein the weight ratio of the fluorosurfactant to the hydrotrope is in the range 1:10 to 10:1.
A process comprising contacting an article with a composition comprising a fluorosurfactant and a hydrotrope wherein the hydrotrope comprises a compound selected from the group consisting of compounds of formula (I) and compounds of formula (II):
- wherein:
- R=Rf or ORf,
- Rf=(per)fluorinated C1-C3 alkyl;
- n=1-3;
- and
- G=—SO3M, —OSO3M, —OPO3(M1)(M2), or —PO3(M1)(M2),
- M=H, Na, K, or NH4,
- M1=H, Na, K, or NH4, and
- M2=H, Na, K, or NH4;
- wherein:
- R=Rf or ORf,
- Rf=(per)fluorinated C1-C3 alkyl;
- n=1-3;
- R1=H or C1-C3 alkyl;
- R2=H or C1-C3 alkyl;
- and
- X=Cl, Br, or I;
- and wherein the weight ratio of the fluorosurfactant to the hydrotrope is in the range of 1:10 to 10:1.
Dependencies are inferred from the claim text.