Water-only colorant compositions
AssigneeSwimc LLC
InventorsJacob S. DONLON, Patricia L. OLOFSSON-ELKOW
Life of this patent
Estimating the term…
Abstract
A point-of-sale custom color system for tinting water-borne architectural base paints and stains includes an array of at least white, green, blue and red low volatile organic compound water-only liquid colorants each containing an at least three-component surfactant package; pigment; and a vehicle. The surfactant package compatibly and homogeneously disperses the colorants throughout water-borne base paints and stains but will not compatibly and homogeneously disperse the colorants throughout solvent-borne base paints and stains unless the colorant is used in combination with a synergist containing one or more ingredients that will disperse the water-only colorants into solvent-borne base paints or stains.
Claims18
A water-only liquid colorant comprising an at least three-component surfactant package, wherein the surfactant package comprises at least two nonionic surfactants and at least one anionic surfactant, and wherein the nonionic surfactants include a hydrophilic alkylene oxide portion and a hydrophobic portion, with the hydrophobic portion of at least one of the nonionic surfactants containing a linear or branched chain aliphatic group, and the hydrophobic portion of at least another of the nonionic surfactants containing one or more aromatic rings, wherein the liquid colorant is suitable to disperse into a water-based base paint or stain without a synergist;
- and wherein the liquid colorant is not suitable to disperse into a solvent-borne base paint or stain without a synergist.
A liquid package for use in making water-only liquid colorants for tinting water-borne base paints and stains, the package comprising a mixture of surfactants having Formulas I, II and III below:
- where R is a linear or branched chain alkyl group or mixture of groups having 1-20 carbons, and n is the number of moles of ethylene oxide and is at least 7 and up to 50;
- where m is the number of moles of ethylene oxide and is at least 5 and up to 25, and in some embodiments is at least 10 and up to 20;
- and R1, R2, R3, R4 and R5 are independently hydrogen or linear or branched aliphatic or aromatic hydrocarbon groups containing at least 4 and up to 10 carbon atoms;
- and
- where R6 is hydrogen or an ethylene oxide chain containing at least 5 and up to 15 moles and a terminal hydrogen atom, nitrogen group, alkyl group or alkaryl group, and R7 and R8 are independently hydrogen, sodium, potassium, a counter ion, or an ethylene oxide chain containing at least 5 and up to 15 moles EO and a terminal hydrogen atom, alkyl group or alkaryl group.
A packaged colorant comprising a low volatile organic compound water-only liquid colorant comprising an at least three-component surfactant package that will compatibly and homogeneously disperse the colorant throughout a water-borne base paint or stain but will not compatibly and homogeneously disperse the colorant throughout a solvent-borne base paint or stain unless the colorant is used in combination with a synergist containing one or more ingredients that will disperse the water-only colorant into a solvent-borne base paint or stain;
- pigment;
- and a vehicle, the colorant packaged in a container having a volume of about 0.5 to about 5 L.
Dependencies are inferred from the claim text.