Aqueous organic dispersions suitable for removing organic films and soils

An aqueous solvent based dispersion capable of removing an organic layer or soil from a substrate, the composition comprising:

• (a) a major proportion of an aqueous phase;
• (b) an effective amount up to about 70 wt % of an ether alcohol solvent comprising the formula:
• HO—R1—O—PH
• wherein R1 comprises a C2-C3 alkylene group, and PH comprises an aromatic ring, wherein the ether alcohol solvent has a water solubility of less than 5 wt %;
• and
• (c) an effective amount up to about 70 wt % of a first ether alcohol solvent/coupler, said first solvent/coupler having a water solubility greater than the ether alcohol solvent, said first solvent/coupler comprising the formula:
• R2—O—(R3O)m—H
• wherein R2 comprises a C2-C10 linear or branched alkyl group and R3 comprises a C2-C10 alkylene group and in is a number from 1 to 6, wherein the first solvent/coupler has a solubility in water of about 20 to 100 wt %;
• wherein the vapor pressure of the organic phase is less than about 1 mm-Hg and the organic phase comprising the solvent and the first solvent/coupler cooperate to form an aqueous dispersion containing an amount of a solvent in a first solvent/coupler greater than the solubility of the organic phase in the aqueous medium.

A solvent concentrate comprising:

• (a) about 15 to 75 wt % of an ether alcohol solvent, said solvent comprising the formula:
• HO—R1—O—PH
• wherein R1 comprises a C2-C10 linear or branched alkyl group, PH comprises an aromatic ring, wherein the ether alcohol solvent has a solubility in water of less than about 5 wt % of the solvent;
• and
• (b) about 15 to 75 wt % of a first ether alcohol solvent/coupler, said solvent/coupler present in an amount that said solvent concentrate forms a dispersion when added to water, said first solvent/coupler having a water solubility greater than the ether alcohol solvent, said first solvent/coupler comprising the formula:
• R2—O—(R3O)m—H
• wherein R2 comprises a C2-C10 linear or branched alkyl group and R3 comprises a C2-C10 alkylene group and m is a number from 1 to 6, wherein said first solvent/coupler has a solubility in water of about 20 to about 100 wt % of the solvent coupler;
• wherein the concentrate is substantially free of a nitrogen base and the vapor pressure of the concentrate is less than 1 mm-Hg.

A solvent concentrate comprising:

• (a) about 15 to 75 wt % of an ether alcohol solvent comprising the formula:
• HO—R1—O—PH
• wherein R1 comprises a C2-C10 linear or branched alkyl group, and PH is an aromatic group, wherein said ether alcohol solvent has a solubility in water of less than about 5 wt % of the solvent;
• and
• (b) about 15 to 75 wt % of a first ether alcohol solvent/coupler, said solvent/coupler present in an amount that said solvent concentrate forms a dispersion when added to water, said first solvent/coupler having a water solubility greater than the ether alcohol solvent, said first solvent/coupler comprising the formula:
• R2—O—(R3O)m—H
• wherein R2 comprises a C2-C10 linear or branched alkyl group and R3 comprises a C2-C10 alkylene group and m is a number from 1 to 6 having a solubility in water o about 100 wt % of the solvent coupler;
• wherein the vapor pressure of the concentrate is less than 1 mm-Hg.

A method of removing protein and cellulosics polymeric film soils from a soiled substrate comprising:

• contacting the soiled substrate with:
• an aqueous solvent based dispersion, the composition comprising:
• (a) a major proportion of an aqueous phase;
• (b) an effective amount up to about 70 wt % of an ether alcohol solvent comprising the formula:
• HO—R1—O—PH
• wherein R1 comprises a C2-C3 alkylene group, and PH comprises an aromatic ring, wherein the ether alcohol an solvent has a water solubility of less than 5 wt %;
• and
• (c) an effective amount up to about 70 wt % of a first ether alcohol solvent/coupler, said first solvent/coupler having a water solubility greater than the ether alcohol solvent, said first solvent/coupler comprising the formula:
• R2—O—(R3O)m—H
• wherein R2 comprises a C2-C10 linear or branched alkyl group and R3 comprises a C2-C10 alkylene group and m is a number from 1 to 6, wherein the first solvent/coupler has a solubility in water of about 20 to 100 wt %;
• wherein the vapor pressure of the organic phase is less than about 1 mm-Hg and the organic phase comprising the solvent and the first solvent/coupler cooperate to form an aqueous dispersion containing an amount of a solvent in a first solvent/coupler greater than the solubility of the organic phase in the aqueous medium;
• and
• removing the protein and cellulosics polymeric film soils from the soiled substrate.

A method of removing oxidized or polymerized food soils from a soiled substrate comprising:

• contacting the soiled substrate with:
• an aqueous solvent based dispersion, the composition comprising:
• (a) a major proportion of an aqueous phase;
• (b) an effective amount up to about 70 wt % of an ether alcohol solvent comprising the formula:
• HO—R1—O—PH
• wherein R1 comprises a C2-C3 alkylene group, and PH comprises an aromatic ring, wherein the ether alcohol solvent has a water solubility of less than 5 wt %;
• and
• (c) an effective amount up to about 70 wt % of a first ether alcohol solvent/coupler, said first solvent/coupler having a water solubility greater than the ether alcohol solvent, said first solvent/coupler comprising the formula:
• R2—O—(R3O)m—H
• wherein R2 comprises a C2-C10 linear or branched alkyl group and R3 comprises a C2-C10 alkylene group and m is a number from 1 to 6, wherein the first solvent/coupler has a solubility in water of about 20 to 100 wt %;
• wherein the vapor pressure of the organic phase is less than about 1 mm-Hg and the organic phase comprising the solvent and the first solvent/coupler cooperate to form an aqueous dispersion containing an amount of a solvent in a first solvent/coupler greater than the solubility of the organic phase in the aqueous medium;
• and
• removing the oxidized or polymerized food soils from the soiled substrate.