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US 11,815,852 B2Granted
Liquid electrophotographic ink composition
AssigneeHewlett-Packard Development Company, L.P.
InventorsEyal Cohen, Albert Teishev, Reut Avigdor, Yael Kowal-Blau, Tal Rosenthal, Anatoly Sobolevsky
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Abstract
Herein is described a liquid electrophotographic ink composition including a carrier liquid and a resin including an acid copolymer and an acrylate copolymer, wherein the acrylate copolymer includes at least about 30 wt. % of the alkyl (meth)acrylate monomer.
Claims13
A liquid electrophotographic ink composition comprising:
- a carrier liquid;
- and
- a resin comprising:
- an acid copolymer of an alkylene monomer and a monomer having an acid side group, wherein the acid copolymer is absent of ester groups;
- and
- at least about 0.1 wt. % by total weight of the resin being an acrylate copolymer of an alkylene monomer and an alkyl (meth)acrylate monomer, the acrylate copolymer consisting of 35 wt. % to 50 wt. % of the alkyl (meth)acrylate monomer, with a remaining component of the acrylate copolymer consisting of the alkylene monomer.
3 more elements
A method of producing a liquid electrophotographic ink composition, the method comprising combining a carrier liquid and a resin to form a mixture, the resin comprising:
- an acid copolymer of an alkylene monomer and a monomer having an acid side group, wherein the acid copolymer is absent of ester groups;
- and
- at least about 0.1 wt. % by total weight of the resin being an acrylate copolymer of an alkylene monomer and an alkyl (meth)acrylate monomer, the acrylate copolymer consisting of 35 wt. % to 50 wt. % of the alkyl (meth)acrylate monomer, with a remaining component of the acrylate copolymer consisting of the alkylene monomer.
A printed substrate comprising:
- a print substrate;
- and
- a liquid electrophotographically printed image layer comprising a resin that includes:
- an acid copolymer of an alkylene monomer and a monomer having an acid side group, wherein the acid copolymer is absent of ester groups;
- and
- at least about 0.1 wt. % by total weight of the resin being an acrylate copolymer of an alkylene monomer and an alkyl (meth)acrylate monomer, the acrylate copolymer consisting of 35 wt. % to 50 wt. % of the alkyl (meth)acrylate monomer, with a remaining component of the acrylate copolymer consisting of the alkylene monomer.
3 more elements
Dependencies are inferred from the claim text.