An aqueous dispersion of particles comprising a resin having at least one repeating unit of formula I, II and/or III and which is obtainable by contacting in a liquid comprising water, a compound A comprising at least 2 functional groups selected from the group of functional groups —X—C(═O)—CHR1-C(═O)—R2, —X—C(═O)—C≡C—R2; or —X—C(═O)—CR1=CR2-NR11R12, the functional groups are linked by a linking group comprising a polyester, polyether, polyolefin, polydimethylsiloxane or polycarbonate chain with a compound B comprising at least two —NH.sub.2, —NH.sub.3.sup.+ or —N═C═O, wherein X, R1, R2, R3, R11 and R12 have the same meaning as that defined in the claims and w. The invention also includes a method of producing the aqueous dispersion.

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An aqueous dispersion of particles comprising a resin having at least one repeating unit of formula I, II and/or III and which is obtainable by contacting in a liquid comprising water, a compound A comprising at least 2 functional groups selected from the group of functional groups —X—C(═O)—CHR1-C(═O)—R2, —X—C(═O)—C≡C—R2; or —X—C(═O)—CR1=CR2-NR11R12, the functional groups are linked by a linking group comprising a polyester, polyether, polyolefin, polydimethylsiloxane or polycarbonate chain with a compound B comprising at least two —NH.sub.2, —NH.sub.3.sup.+ or —N═C═O, wherein X, R1, R2, R3, R11 and R12 have the same meaning as that defined in the claims and w. The invention also includes a method of producing the aqueous dispersion.

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A colored resin particle dispersion and an ink are provided which exhibit excellent abrasion resistance of the printed items and excellent storage stability of the dispersion. Specifically provided is a colored resin particle dispersion comprising colored resin particles containing a colorant and a solid resin, a basic dispersant, and a non-aqueous solvent, wherein the solid resin is a resin having alkoxy groups and/or a polysilsesquioxane. The resin having alkoxy groups preferably has methoxy groups and/or ethoxy groups. Further, the resin having alkoxy groups preferably contains at least one of a polyamide resin having methoxymethyl groups, a methoxypolysilsesquioxane and an ethoxypolysilsesquioxane.

A colored resin particle dispersion and an ink are provided which exhibit excellent abrasion resistance of the printed items and excellent storage stability of the dispersion. Specifically provided is a colored resin particle dispersion comprising colored resin particles containing a colorant and a solid resin, a basic dispersant, and a non-aqueous solvent, wherein the solid resin is a resin having alkoxy groups and/or a polysilsesquioxane. The resin having alkoxy groups preferably has methoxy groups and/or ethoxy groups. Further, the resin having alkoxy groups preferably contains at least one of a polyamide resin having methoxymethyl groups, a methoxypolysilsesquioxane and an ethoxypolysilsesquioxane.

Provided is an ethyleneimine polymer which exhibits excellent close adhesion properties and adhesive properties and has a low water content, and a method for producing the same. An ethyleneimine polymer, in which the number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more and the value obtained by dividing the weight average molecular weight by the number average molecular weight (weight average molecular weight: Mw/number average molecular weight: Mn=degree of dispersion) of the ethyleneimine polymer is from 1.4 to 3.0.

Provided is an ethyleneimine polymer which exhibits excellent close adhesion properties and adhesive properties and has a low water content, and a method for producing the same. An ethyleneimine polymer, in which the number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more and the value obtained by dividing the weight average molecular weight by the number average molecular weight (weight average molecular weight: Mw/number average molecular weight: Mn=degree of dispersion) of the ethyleneimine polymer is from 1.4 to 3.0.

Aqueous inkjet compositions comprising a composite resin vehicle wherein at least one component of the composite resin vehicle is a polyurethane dispersion (PUD) preferably with a glass transition temperature (Tg) of less than 80° C., and the other component is an acrylic resin dispersion preferably with a Tg of greater than 40° C. or a metal oxide nanoparticle dispersion such as colloidal silica with a particle size of less than 100 nm.

Aqueous inkjet compositions comprising a composite resin vehicle wherein at least one component of the composite resin vehicle is a polyurethane dispersion (PUD) preferably with a glass transition temperature (Tg) of less than 80° C., and the other component is an acrylic resin dispersion preferably with a Tg of greater than 40° C. or a metal oxide nanoparticle dispersion such as colloidal silica with a particle size of less than 100 nm.

The present disclosure provides a white-light block polymer, an ink composition, and a manufacturing method thereof. The white-light block polymer makes it only necessary to print one ink when using inkjet printing, thereby simplifying inkjet printing processing and meanwhile preventing a crosstalk problem of pixels having different colors of light. The present disclosure makes the ink composition suitable for inkjet printing by properly mixing the white-light block polymer, an organic solvent, a surface tension modifier, and a viscosity modifier in a suitable ratio.

The present disclosure provides a white-light block polymer, an ink composition, and a manufacturing method thereof. The white-light block polymer makes it only necessary to print one ink when using inkjet printing, thereby simplifying inkjet printing processing and meanwhile preventing a crosstalk problem of pixels having different colors of light. The present disclosure makes the ink composition suitable for inkjet printing by properly mixing the white-light block polymer, an organic solvent, a surface tension modifier, and a viscosity modifier in a suitable ratio.