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US 10,767,060 B2Granted
Ultra-stable printing and coatings using aqueous complex coacervates, and compositions and methods thereof
AssigneeUniversity of Massachusetts
InventorsXiangxi Meng, Sarah L. Perry, Jessica D. Schiffman
Life of this patent
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Abstract
The invention provides compositions and methods for ultra-stable coating or printing from aqueous complex coacervates.
Claims20
A method for forming a coating on a substrate, comprising:
- providing an aqueous coacervate suspension comprising a polyanion or macroanion, a polycation or macrocation, and a salt;
- coalescing the aqueous coacervate suspension into a homogeneous coacervate phase;
- and
- depositing the coacervate phase on a substrate to form a coating on the substrate, wherein the polycation or macrocation comprises poly(diallyldimethyl ammonium), the polyanion or macroanion comprises poly(styrene sulfonate), and the salt comprises KBr.
1 more element
A method for printing from an aqueous coacervate composition, comprising:
- providing an aqueous coacervate suspension comprising a polyanion or macroanion, a polycation or macrocation, and a salt;
- coalescing the aqueous coacervate suspension into a homogeneous coacervate phase;
- and
- depositing the coacervate phase on a substrate to form a print on the substrate, wherein the stoichiometry of polyanion or macroanion to polycation or macrocation in the aqueous coacervate suspension is from about 0.25 to about 0.75.
1 more element
An aqueous ink, comprising a polyanion or macroanion, a polycation or macrocation, and a salt, wherein the polycation or macrocation comprises poly(diallyldimethyl ammonium), the polyanion or macroanion comprises poly(styrene sulfonate), and the salt comprises KBr.
Dependencies are inferred from the claim text.