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US 10,519,334 B2Granted
Polysaccharide-based water-compatible wood stain
AssigneeThe Sherwin-Williams Company
InventorJoshua Halstead
Life of this patent
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Abstract
Water-based stains comprise or consist essentially of a polysaccharide resin and a crosslinking agent such as an isocyanate. Upon evaporation of water, the polysaccharide undergoes crosslinking with the isocyanate component, developing water resistance so that it will not redissolve upon application of a water-based or oil-based clearcoat; as a result, lifting is minimized after a drying time of, e.g., two to six hours.
Claims11
A wood stain composition comprising:
- an aqueous solution of a crosslinkable polysaccharide having a structure wherein at least one hydroxyl group is bonded to at least one carboxyl group of an alkyd;
- a crosslinking agent crosslinkable with the polysaccharide upon drying of the aqueous solution;
- and
- a pigment dispersion.
1 more element
Dependencies are inferred from the claim text.