Abstract: The present disclosure provides a block copolymeric dispersant composition, wherein the dispersant composition includes an A block and a B block, wherein the A block is a segment having a block size of about 5 to about 18 units, is substantially free of hydroxyethylmethacrylate, and makes up at least 50% by weight of a monomer, having the following structure: CH2?CRC(O)O(CHR1CH2O)nR2, wherein R and R1 are H, or methyl; R2 is alkyl of 1-4 carbon atoms or phenyl; and n is about 1 to about 20; and the B block is a segment including an ionic monomer and at least one hydrophobic monomer; and wherein the dispersant is neutralized.

Abstract: The present disclosure provides a ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a colorant, more typically a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and the B block is free of an amine monomer. The disclosure further pertains to an ink set comprising this ink jet ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH modifying agent capable of destabilizing the colorant containing dispersion of the first ink.

Abstract: A photocurable adhesive composition is disclosed herein that has high adhesive strength and optical clarity and which in the cured state is reworkable and exhibits low propensities for exhibiting glow mark and pooling effects. The composition contains a chain transfer agent, an urethane (meth)acrylate having a plurality of ethylenically unsaturated groups, a (meth)acrylate monomer and a photoinitiator. The composition may optionally contain a light stabilizer.

Abstract: The present disclosure provides a aqueous colorant dispersion comprising a colorant and a polymeric dispersant, wherein the polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment having a block size of about 5 to about 18 units, is substantially free of hydroxyethylmethacrylate, and comprises at least 50% by weight of a monomer, having the following structure: CH2?CRC(O)O(CHR1CH2O)nR2, wherein R and R1 are H, or methyl; R2 is alkyl of 1-4 carbon atoms or phenyl; and n is about 1 to about 20; and the B block is a segment comprising an ionic monomer and at least one hydrophobic monomer; and wherein the dispersant is neutralized. The disclosure further pertains to an aqueous ink jet ink comprising this aqueous colorant dispersion. Still further, the disclosure pertains to a method of printing that provides images with the requisite optical density and chroma needed for emerging ink jet applications.

Abstract: The present invention pertains to a black inkjet ink comprising aqueous vehicle and carbon black pigment stabilized to dispersion by a certain block copolymer dispersant. The invention further pertains to an ink set comprising this black ink and at least a second ink which contains a reactive species capable of destabilizing the carbon black dispersion. Still further, the invention pertains to a method of printing wherein the black ink and second ink are printed in an overlapping relationship, thereby minimizing penetration, feathering and/or bleed of the black pigment and improving print quality.

Abstract: The present disclosure provides a ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a colorant, more typically a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and the B block is free of an amine monomer. The disclosure further pertains to an ink set comprising this ink jet ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH modifying agent capable of destabilizing the colorant containing dispersion of the first ink.

Abstract: This invention pertains to an aqueous based dispersion of Pigment Yellow 74 which uses a certain class of polymeric dispersants which dispersant is particularly effective at dispersing the pigment and preventing pigment particle growth on storage. The classes of polymeric dispersants are based on random copolymers of an ionic momomer and a hydrophobic monomer chosen from benzyl(meth)acrylate or alkyl(meth)acrylate where the alkyl group has four to ten carbon atoms and (meth)acrylic acid. The invention also pertains to an inkjet ink comprising this Pigment Yellow 74 dispersion.

Abstract: A photocurable adhesive composition is disclosed herein that has high adhesive strength and optical clarity and which in the cured state is reworkable and exhibits low propensities for exhibiting glow mark and pooling effects. The composition contains a chain transfer agent, an urethane (meth)acrylate having a plurality of ethylenically unsaturated groups, a (meth)acrylate monomer and a photoinitiator. The composition may optionally contain a light stabilizer.

Abstract: The present disclosure provides a aqueous colorant dispersion comprising a colorant and a polymeric dispersant, wherein the polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment having a block size of about 5 to about 18 units, is substantially free of hydroxyethylmethacrylate, and comprises at least 50% by weight of a monomer, having the following structure: CH2?CRC(O)O(CHR1CH2O)nR2, wherein R and R1 are H, or methyl; R2 is alkyl of 1-4 carbon atoms or phenyl; and n is about 1 to about 20; and the B block is a segment comprising an ionic monomer and at least one hydrophobic monomer; and wherein the dispersant is neutralized. The disclosure further pertains to an aqueous ink jet ink comprising this aqueous colorant dispersion. Still further, the disclosure pertains to a method of printing that provides images with the requisite optical density and chroma needed for emerging ink jet applications.

Abstract: The present disclosure provides a black ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and with the proviso that the acid number is greater that the amine number, and the B block does not contain an amine monomer. The disclosure further pertains to an ink set comprising this black ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH capable of destabilizing the carbon black dispersion.

Abstract: A thermally and actinically curable adhesive composition is disclosed herein that has high adhesive strength and optical clarity and which in the cured state is reworkable and exhibits low propensities for exhibiting glow mark and pooling effects. The composition contains a chain transfer agent, an urethane (meth)acrylate having a plurality of ethylenically unsaturated groups, a (meth)acrylate monomer, a thermal initiator and a photoinitiator. The composition may optionally contain a light stabilizer.

Abstract: The present invention pertains to a radiation-curable inkjet ink and, more particularly, to a radiation-curable inkjet ink comprising a specified polymerizable vehicle that is curable on exposure to radiation such as ultraviolet light.

Abstract: The present disclosure provides a black ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and with the proviso that the acid number is greater that the amine number, and the B block does not contain an amine monomer. The disclosure further pertains to an ink set comprising this black ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH capable of destabilizing the carbon black dispersion.

Abstract: The present invention pertains to a black inkjet ink comprising aqueous vehicle and carbon black pigment stabilized to dispersion by a certain block copolymer dispersant. The invention further pertains to an ink set comprising this black ink and at least a second ink which contains a reactive species capable of destabilizing the carbon black dispersion. Still further, the invention pertains to a method of printing wherein the black ink and second ink are printed in an overlapping relationship, thereby minimizing penetration, feathering and/or bleed of the black pigment and improving print quality.

Abstract: A process is provided in which a pigment is oxidated with ozone in an aqueous environment in which the mixture of ozone, water and pigment is subjected to a dispersive mixing operation; and/or the pH of the mixture is maintained in a range of 6-8, whereby the pigment is self-dispersing and preferably has an acid value of less than 3 ?moles/M2. Pigments from this process and ink jet inks containing the self-dispersing pigments, are also provided.

Abstract: A process is provided in which a pigment is oxidated with ozone in an aqueous environment in which the mixture of ozone, water and pigment is subjected to a dispersive mixing operation; and/or the pH of the mixture is maintained in a range of 6-8, whereby the pigment is self-dispersing and preferably has an acid value of less than 3 &mgr;moles/M2. Pigments from this process and ink jet inks containing the self-dispersing pigments, are also provided.

Abstract: Media are disclosed having a substrate, water-absorbing layer, and adhesive ink-receiving layer. After being printed with an aqueous pigmented ink, the ink-receiving layer may be laminated to a permanent substrate. Exposure to an energy source may render the printed image more durable.

Abstract: An ink jet ink composition and process for printing on vinyl substrates in which the ink comprises an aqueous vehicle containing at least water and a water-miscible glycol or glycol ether, wherein water constitutes no more than 80% by weight based on the total weight of the vehicle; an insoluble colorant (preferably a pigment); a polymeric dispersant; a silicon or fluorinated surfactant; and, optionally but preferably, a graft copolymer binder having a hydrophobic backbone and non-ionic, hydrophilic side chains, which binder is soluble in the aqueous vehicle but insoluble in water.

Abstract: Inks for ink jet printers containing an aqueous carrier medium; a pigment; a polymeric dispersant; and an emulsion polymer additive stabilized with a structured polymer are stable, have low viscosity, exhibit excellent print quality, provide excellent smear resistance after drying, have good decap and crusting time, and also demonstrate good charging stability when used in continuous flow printers.

Abstract: Media are disclosed having a substrate, water-absorbing layer, and adhesive ink-receiving layer. After being printed with an aqueous pigmented ink, the ink-receiving layer may be laminated to a permanent substrate. Exposure to an energy source may render the printed image more durable.