Opacifying clusters for use in paint compositions
AssigneeThe Sherwin-Williams Company
InventorsJames M Reuter, Joseph K Walker, Jr., Chase Banyots
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Abstract
An opacifying cluster which may be added to a coating composition to provide a coating composition with low gloss and a high level of opacity. The opacifying cluster can include a polymeric latex binder coalescing cluster components into a generally homogeneous particle. The cluster components may include discrete polymeric particles each defining a closed void volume therein, a plurality of inorganic pigment particles, and a plurality of extender pigment particles. The clusters may also include a porosity of the polymeric latex binder thereof defining a binder void volume. Also provided is a paint product including such a pigment cluster.
Claims12
An opacifying cluster particle suitable for latex paint compositions to provide increased opacity, the opacifying cluster particle comprising:
- a polymeric latex binder coalescing cluster components into a generally homogeneous particle;
- the cluster components include discrete polymeric particles each defining a closed void volume therein, a plurality of optional inorganic pigment particles, and a plurality of extender pigment particles;
- and
- a porosity of the polymeric latex binder defining a binder void volume.
Dependencies are inferred from the claim text.