Tinting water-borne and solvent-borne paints and stains with powdered colorants

Patent metadata

Field	Value
Publication number	US-10933389-B2
Application number	US-201816016179-A
Country	US
Kind code	B2
Filing date	Jun 22, 2018
Priority date	Jul 28, 2017
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

A point-of-sale custom color system for tinting base paints and stains includes an array of powdered colorants, including at least white, green, blue and red colorants, which can be used to tint water-borne paints and stains. When tinting solvent-borne base paints or stains, a synergist containing one or more cosolvents, dispersing agents or surfactants is added to or is a part of the solvent-borne base paint or stains, and enables effective tinting using the powdered colorants.

First claim

The invention claimed is:

1. A method for point-of-sale custom paint or stain tinting, the method comprising using an automated or manual colorant dispenser to dispense into water-borne and solvent-borne base paints or stains at a retail, wholesale or combined retail/wholesale outlet one or more powdered colorants selected from an array of colorants including at least white, black, red, green and blue powdered colorants containing pigment or dye and a surface treatment, and further comprising adding to or including in the solvent-borne base paints or stains at least one synergist containing one or more ingredients that will disperse the powdered colorants into such solvent-borne base paints or stains, wherein the synergist is added to the solvent-borne base paint or stain before dispensing any of the one or more powdered colorants into such solvent-borne base paint or stain.

2. A method according to claim 1 , wherein powdered colorants are used whenever tinting a water-borne base paint or stain, and powdered colorants and the synergist are used whenever tinting a solvent-borne base paint or stain.

3. A method according to claim 1 , wherein the amount or type of synergist added to the solvent-borne base paint or stain varies depending on the amount or type of colorant to be dispensed, or depending on the solvent-borne base paint or stain to be tinted.

4. A method according to claim 1 , wherein the synergist comprises an anionic surfactant.

5. A method according to claim 1 , wherein the synergist comprises surfactant and cosolvent.

6. A method according to claim 1 , wherein the synergist comprises surfactant, cosolvent and rheology modifier.

7. A method according to claim 1 , wherein the synergist comprises surfactant and dispersing agent.

8. A method according to claim 1 , wherein at least 80 wt. % of the synergist comprises surfactant or dispersing agent or cosolvent.

9. A method according to claim 1 , wherein the synergist comprises surfactant, cosolvent and rheology modifier.

10. A method according to claim 1 , wherein the synergist further comprises an adhesion promoter.

11. A method according to claim 1 , wherein the synergist further comprises a diluent.

12. A method according to claim 11 , wherein the diluent is a reactive diluent.

13. A method according to claim 1 , wherein the synergist is contained in a metal or plastic box, can, cartridge, jar, pouch, squeeze bottle, syringe or collapsible tube.

14. A method according to claim 1 , wherein all of the colorants in the array are water-only powdered colorants.

15. A method according to claim 1 , wherein the solvent-borne base paint or stain comprises an alkyd paint, polyurethane paint, epoxy paint or oil-based stain.

16. A method for point-of-sale custom paint or stain tinting, the method comprising using an automated or manual colorant dispenser to dispense into water-borne and solvent-borne base paints or stains at a retail, wholesale or combined retail/wholesale outlet one or more powdered colorants selected from an array of colorants including at least white, black, red, green and blue powdered colorants containing pigment or dye and a surface treatment, and further comprising adding to or including in the solvent-borne base paints or stains at least one synergist containing one or more ingredients that will disperse the powdered colorants into such solvent-borne base paints or stains, wherein powdered colorants are used whenever tinting a water-borne base paint or stain, and powdered colorants and the synergist are used whenever tinting a solvent-borne base paint or stain.

17. A method according to claim 16 , wherein the synergist is added to the solvent-borne base paint or stain before dispensing any of the one or more powdered colorants into such solvent-borne base paint or stain.

18. A method according to claim 16 , wherein the amount or type of synergist added to the solvent-borne base paint or stain varies depending on the amount or type of colorant to be dispensed, or depending on the solvent-borne base paint or stain to be tinted.

19. A method according to claim 16 , wherein the synergist comprises an anionic surfactant.

20. A method according to claim 16 , wherein the synergist comprises surfactant and cosolvent.

21. A method according to claim 16 , wherein the synergist comprises surfactant, cosolvent and rheology modifier.

22. A method according to claim 16 , wherein the synergist comprises surfactant and dispersing agent.

23. A method according to claim 16 , wherein at least 80 wt. % of the synergist comprises surfactant or dispersing agent or cosolvent.

24. A method according to claim 16 , wherein the synergist comprises surfactant, cosolvent and rheology modifier.

25. A method according to claim 16 , wherein the synergist further comprises an adhesion promoter.

26. A method according to claim 16 , wherein the synergist further comprises a diluent.

27. A method according to claim 26 , wherein the diluent is a reactive diluent.

28. A method according to claim 16 , wherein the synergist is contained in a metal or plastic box, can, cartridge, jar, pouch, squeeze bottle, syringe or collapsible tube.

29. A method according to claim 16 , wherein all of the colorants in the array are water-only powdered colorants.

30. A method according to claim 16 , wherein the solvent-borne base paint or stain comprises an alkyd paint, polyurethane paint, epoxy paint or oil-based stain.

Assignees

• Swimc Llc

Inventors

• Ellsworth Mark W
• Bush Benita L
• Collignon Alison M
• Donlon Jacob S
• Coward Mark R

Classifications

• C09D7/63 Primary

  organic · CPC title

• B01F33/844

  with means for customizing the mixture on the point of sale, e.g. by sensing, receiving or analysing information about the characteristics of the mixture to be made · CPC title

• B01F2101/30

  Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel · CPC title

• B01F33/8442 Primary

  using a computer for controlling information and converting it in a formula and a set of operation instructions, e.g. on the point of sale · CPC title

• B01F23/56

  by introducing solids in liquids, e.g. dispersing or dissolving · CPC title