A printable dielectric ink composition includes an inhibited catalyst-polymer complex and a crosslinker, wherein the printable dielectric ink composition has a viscosity of about 1 to about 10 cP.

A printable dielectric ink composition includes an inhibited catalyst-polymer complex and a crosslinker, wherein the printable dielectric ink composition has a viscosity of about 1 to about 10 cP.

A polymer material suitable for three-dimensional printing that may include at least one of polyether block amide, thermoplastic polyurethane, and thermoplastic olefin. The polymer is formed through chemical precipitation forming a precipitated pulverulent polymer which possesses increased operating window characteristics selected from the group consisting at least one of a wider than typical range between and among the melting and recrystallization temperatures, a larger enthalpy upon melting, and a low volumetric change during recrystallization.

A polymer material suitable for three-dimensional printing that may include at least one of polyether block amide, thermoplastic polyurethane, and thermoplastic olefin. The polymer is formed through chemical precipitation forming a precipitated pulverulent polymer which possesses increased operating window characteristics selected from the group consisting at least one of a wider than typical range between and among the melting and recrystallization temperatures, a larger enthalpy upon melting, and a low volumetric change during recrystallization.

An inkjet ink that includes (A) a terpene resin, (B) a solvent system that includes (B1) methyl ethyl ketone, and (C) a polyether modified silicone having a hydrophilic-lipophilic balance (HLB) value of 1 to 12, which is characterized by extended decap times, quick drying properties, and providing high image sharpness. A printed article including the inkjet ink in dried form, and a method of forming a printed image with a thermal inkjet printhead are also provided.

A non-aqueous ink jet ink composition according to an embodiment of the present disclosure is an ink composition including a bright pigment, and glycol monoether A and glycol monoether B that are represented by Formula (1) and have flash points different from each other, in which the glycol ether A has a flash point of 85° C. or lower, the glycol monoether B has a flash point of 95° C. or higher, a total content of the glycol monoether A and the glycol monoether B is in a range of 20% to 60% by mass with respect to a total amount of the ink composition, and the content of the glycol monoether A is greater than the content of the glycol monoether B.

R.sub.1—(O—R.sub.2).sub.n—OH  Formula (1)

(In Formula (1), R.sub.1 represents an alkyl group having 1 to 8 carbon atoms or a phenyl group, R.sub.2 represents an alkylene group having 1 to 5 carbon atoms, and n represents an integer of 1 to 4.)

A non-aqueous ink jet ink composition according to an embodiment of the present disclosure is an ink composition including a bright pigment, and glycol monoether A and glycol monoether B that are represented by Formula (1) and have flash points different from each other, in which the glycol ether A has a flash point of 85° C. or lower, the glycol monoether B has a flash point of 95° C. or higher, a total content of the glycol monoether A and the glycol monoether B is in a range of 20% to 60% by mass with respect to a total amount of the ink composition, and the content of the glycol monoether A is greater than the content of the glycol monoether B.

R.sub.1—(O—R.sub.2).sub.n—OH  Formula (1)

(In Formula (1), R.sub.1 represents an alkyl group having 1 to 8 carbon atoms or a phenyl group, R.sub.2 represents an alkylene group having 1 to 5 carbon atoms, and n represents an integer of 1 to 4.)

The present invention aims to provide an active energy ray-curable ink composition which can constitute a composition having good flowability during printing. The present invention relates to an active energy ray-curable ink composition, containing an allylic polymer, a dispersant, and a pigment, the allylic polymer being produced by polymerizing an allylic compound represented by the following formula (I):

##STR00001##

wherein R.sup.1 and R.sup.2 each represent H or CH.sub.3; X represents an a-valent group having an unsubstituted saturated or partially unsaturated four- to eight-membered cyclic backbone; and a represents 2 or 3.

The present invention aims to provide an active energy ray-curable ink composition which can constitute a composition having good flowability during printing. The present invention relates to an active energy ray-curable ink composition, containing an allylic polymer, a dispersant, and a pigment, the allylic polymer being produced by polymerizing an allylic compound represented by the following formula (I):

##STR00001##

wherein R.sup.1 and R.sup.2 each represent H or CH.sub.3; X represents an a-valent group having an unsubstituted saturated or partially unsaturated four- to eight-membered cyclic backbone; and a represents 2 or 3.

Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.