Process for preparing latex paints containing biocides
View Patent ↗A process for incorporating water insoluble biocides in latex paint products. The process comprises adding the biocide to the dispersion phase.
1. A process for manufacturing a paint composition, the process comprising:
preparing a grind phase by mixing together one or more pigments, other grind phase components, and a water insoluble biocide formulation; and
mixing the grind phase with a one or more latex resins and other letdown components,
wherein the water insoluble biocide formulation comprises at least 50% by weight of a biocide; and wherein the biocide is 1,2-benzisothiazol-3(2H)-one.
2. A grind phase for use in a latex paint manufacturing process, comprising:
one or more pigments;
grind phase components; and
a water insoluble biocide formulation,
wherein the water insoluble biocide formulation comprises at least 50% by weight of a biocide;
wherein the grind phase components are selected from one or more of: water, co-solvents, coalescents, thickeners, surfactants, pigment dispersants, neutralizers, and defoamers;
and wherein the biocide is 1,2-benzisothiazol-3(2H)-one the biocide is 1,2-benzisothiazol-3(2H)-one.
3. A process according to claim 1 wherein the biocide is a high solids material comprising at least 80% by weight of the biocide.
4. A grind phase according to claim 2 wherein the biocide is a high solids material comprising at least 80% by weight of the biocide.