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US 9,656,501 B2Granted
Coating compositions
AssigneeHewlett-Packard Development Company, L.P.
InventorsXiaoqi Zhou, Gracy Apprisiani Wingkono, David Edmondson
Life of this patent
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Abstract
A coating composition includes pigments or a mixture of pigments, a surface active substance and a metal containing polymeric complex. The metal containing polymeric complex contains a metallic salt, a polymeric latex and polyvinyl alcohol (PVA), wherein the polyvinyl alcohol has a molecular weight ranging from about 10,000 to about 65,000.
Claims18
A coating composition, comprising:
- a. a pigment slurry comprising at least one pigment and a surface active substance, wherein the surface active substance comprises natural macromolecules having a molecular weight from 40,000 to 850,000, and
- b. a metal-containing polymeric complex, such metal-containing polymeric complex formed from at least:
- i. a metallic salt,
- ii. a polymeric latex, and
- iii. a polyvinyl alcohol (PVA) which has a molecular weight in the range of from about 10,000 to about 65,000;
- wherein the pigment slurry and metal-containing polymeric complex are prepared separately before being mixed, such that the coating composition exhibits no precipitation or gelling.
3 more elements
Dependencies are inferred from the claim text.