Coating composition and printable medium
AssigneeHewlett-Packard Development Company, L.P.
InventorsXiaoqi Zhou, Zhang-Lin Zhou
Life of this patent
Estimating the term…
Abstract
A coating composition comprising water, water-soluble cationic phosphonium salts and polyurethane particles including sulfonated- or carboxylated-diamine groups, isocyanate-generated amine groups, and polyalkylene oxide side-chains. Also disclosed is a coated printable medium, with an image-side and a back-side, comprising a base substrate and the coating composition, such as described herein, that is applied over, at least, one side of the base substrate, forming an image-receiving layer. Also disclosed is the method for making such printable medium.
Claims15
1) A coating composition comprising water, water-soluble cationic phosphonium salts and polyurethane particles including sulfonated- or carboxylated-diamine groups, isocyanate-generated amine groups, and polyalkylene oxide side-chains.
12) A coated printable medium, with an image-side and a back-side, comprising:
- a. a base substrate;
- b. and a coating composition applied over, at least, one side of the base substrate, forming an image-receiving layer, and comprising water, water-soluble cationic phosphonium salts and polyurethane particles including sulfonated- or carboxylated-diamine groups, isocyanate-generated amine groups, and
- polyalkylene oxide side-chains.
15) A method of making a coated printable medium comprising:
- a. applying a coating composition as a layer to a media substrate, the coating composition including water, water-soluble cationic phosphonium salts and polyurethane particles including sulfonated- or carboxylated-diamine groups, isocyanate-generated amine groups, and polyalkylene oxide side-chains;
- b. drying the coating composition to remove water from the media substrate to leave an ink-receiving layer thereon.
Dependencies are inferred from the claim text.