Composition and method for treating paint booth water systems
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorKathryn E. Foster
Life of this patent
Estimating the term…
Abstract
The invention is a composition and method for treating paint booth water systems to facilitate paint removal. The composition comprises water, solid particles of insoluble organic polymer, such as, by way of non-limiting example, urea methanal copolymer, preferably including less than 50 weight percent of particles of diameter of 1 micron or less, and optionally surfactants, thickeners, polymeric flocculents different from the organic polymer, clarifiers, anti-corrosive components, and/or biocides.
Claims21
A composition for treating paint booth water systems to facilitate paint removal comprising water and:
- a) a first component comprising solid particles of insoluble organic polymer dispersed in said composition;
- b) a second component selected from the group consisting of surfactants, thickeners, polymeric flocculents different from a), and mixtures thereof;
- and optionally
- c) clarifiers, anti-corrosive components, and/or biocides.
A composition for treating paint booth water systems to facilitate paint removal comprising water and:
- a) a first component comprising insoluble particles of a storage stable organic polymer dispersed in said composition, said organic polymer comprising reactive methylol groups;
- and
- b) a second component comprising at least one of a surfactant, a thickener and a polymeric flocculent different from a);
- wherein the insoluble particles of a) are less than 100 microns in diameter, and less than 50% of said particles are colloidal.
A paint booth water system which comprises resident water, paint and a composition(I) for detackifying and flocculating said paint, the composition(I) comprising a liquid medium and:
- a) a first component comprising solid particles of insoluble organic;
- b) a second component selected from the group consisting of surfactants, thickeners, polymeric flocculents different from a), and mixtures thereof;
- and optionally
- c) clarifiers, anti-corrosive components, and/or biocides.
- wherein the system is substantially free of flocculents different from (I).
A method of treating and removing paint contained in resident water of a paint booth water system comprising:
- a) adding an aqueous composition(I) to the paint booth water system, said composition comprising,
- 1) a first component comprising solid particles of organic polymer dispersed in said composition;
- 2) a second component selected from the group consisting of surfactants, thickeners, polymeric flocculents different from a), and mixtures thereof;
- and optionally
- 3) clarifiers, anti-corrosive components, and/or biocides.
- b) mixing the aqueous composition with resident water of the paint booth water system to form a detackified paint flocculent;
- c) removing the paint flocculent from the paint booth water system.
A composition(I) for detackifying and flocculating paint in a paint booth water system consisting essentially of water and:
- a) a component comprising dispersed insoluble solid organic polymer;
- b) one or more surfactants and/or polymeric flocculents different from a);
- and optionally
- c) clarifiers, anticorrosive components, thickeners and/or biocides;
- wherein less than 50 weight percent of said organic polymer is insoluble particles of diameter 1 micron or less.
Dependencies are inferred from the claim text.