Emulsion compositions and a method for selecting surfactants
AssigneeInvista North America S.A.R.L.
InventorRICHARD P. BEATTY
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Abstract
A method for preparing a microemulsion is disclosed which employs a method based upon identification of the phase behavior of a plurality of components comprising the microemulsion. Further disclosed is a microemulsion composition comprising a first component, coupling agent, and surfactant.
Claims12
A composition comprising (a) a first liquid phase component selected from the group consisting of water, alcohols, glycols, glycol ethers, hydrocarbons, alkylene carbonates, and esters, or combinations of two or more thereof;
- (b) a coupling agent selected from the group consisting of one or more aliphatic alcohols, aliphatic glycols, glycol ethers, N-alkyl pyrollidones, dialkyl sulfoxides, triethyl phosphate, and acetone;
- and (c) an anionic surfactant selected from the group consisting of one or more sulfonates, sulfates, ethoxylated sulfates, sulfosuccinates, or combinations thereof, wherein the components selected from (a), (b) and (c) are different.
A composition of matter comprising benzyl alcohol, DOSS and NPG that forms a stable microemulsion when diluted with up to but less than 100 weight percent water.
A composition comprising benzyl alcohol, DOSS, NPG, and water that does not scatter non-directional light.
A composition comprising benzyl alcohol, DOSS, NPG, and water that is a microemulsion.
A composition comprising benzyl alcohol, DOSS, NPG, and water that does not scatter non-directional light but exhibits Tyndall scattering when viewed at an angle with respect to the collimated light beam.
Dependencies are inferred from the claim text.