Disclosed are functional materials for use in additive manufacturing (AM). The functional material can comprise an elastomeric composition (e.g., a silicone composite) for use in, for example, direct ink writing. The elastomeric composition can include and elastomeric resin, and a magnetic nanorod filler dispersed within the elastomeric resin. Nanorod characteristics (e.g., length, diameter, aspect ratio) can be selected to create 3D-printed constructs with desired mechanical properties along different axes. Furthermore, since nickel nanorods are ferromagnetic, the spatial distribution and orientation of nanorods within the continuous phase can be controlled with an external magnetic field. This level of control over the nanostructure of the material system offers another degree of freedom in the design of functional parts and components with anisotropic properties. Magnetic fields can be used to remotely sense compression of the constructs, or alternatively, control the stiffness of these materials.

Aqueous inkjet ink compositions are provided. In an embodiment, such a composition comprises water; resin particles; and a colorant; wherein the resin particles comprise a polymerization product of reactants comprising a monomer, an acidic monomer, a multifunctional monomer, and a reactive surfactant, the resin particles having a D.sub.(z, ave) of no greater than about 150 nm, a D.sub.(v,90) of less than about 200 nm, and a polydispersity index (PDI) of no greater than about 0.050. Methods of forming and using the aqueous inkjet ink compositions are also provided.

Aqueous inkjet ink compositions are provided. In an embodiment, such a composition comprises water; resin particles; and a colorant; wherein the resin particles comprise a polymerization product of reactants comprising a monomer, an acidic monomer, a multifunctional monomer, and a reactive surfactant, the resin particles having a D.sub.(z, ave) of no greater than about 150 nm, a D.sub.(v,90) of less than about 200 nm, and a polydispersity index (PDI) of no greater than about 0.050. Methods of forming and using the aqueous inkjet ink compositions are also provided.

An object of the present disclosure is to provide an electrically conductive ink which can form a wire or the like on a substrate by printing and has excellent adhesion to the substrate. An electrically conductive ink of the present disclosure contains Components (A), (B), (C), and (D) below, and has a ratio of Component (C) to Component (D) (Component (C)/Component (D)) of 1 or greater: Component (A): a surface-modified metal nanoparticle having a configuration in which a surface of metal nanoparticle (Component a-1) is coated with an organic protective agent (Component a-2); Component (B): a solvent; Component (C): polyvinyl acetate; and Component (D): polyvinyl acetal.

Aqueous inkjet ink compositions are provided. In an embodiment, such a composition comprises water; a monodisperse latex; and a colorant; wherein the monodisperse latex comprises resin particles comprising a polymerization product of a monomer, an acidic monomer, a multifunctional monomer, and a reactive surfactant, the resin particles having a D.sub.(z, ave) of no greater than 150 nm, a D.sub.(z, 90) of less than 200 nm, and a polydispersity index (PDI) of no greater than 0.050. Methods of forming and using the aqueous inkjet ink compositions are also provided.

Aqueous inkjet ink compositions are provided. In an embodiment, such a composition comprises water; a monodisperse latex; and a colorant; wherein the monodisperse latex comprises resin particles comprising a polymerization product of a monomer, an acidic monomer, a multifunctional monomer, and a reactive surfactant, the resin particles having a D.sub.(z, ave) of no greater than 150 nm, a D.sub.(z, 90) of less than 200 nm, and a polydispersity index (PDI) of no greater than 0.050. Methods of forming and using the aqueous inkjet ink compositions are also provided.

Provided is an active energy ray-curable ink composition for offset printing that exhibits superior properties comparable to ink compositions containing trimethylolpropane triacrylate (TMPTA), regardless of containing no TMPTA. This can be achieved through preparation of an active energy ray-curable ink composition for offset printing which contains at least one selected from the group consisting of diallyl phthalate resin, polyfunctional polyester acrylate, and rosin-modified alkyd resin having an sp value of 9.0 to 11.0 (cal/cm.sup.3).sup.½, and contains ethylene oxide (EO)-modified TMPTA monomers having one to nine EO units in the molecule.

A conductive paste that can reduce an increase in electrical resistance caused by stretching of a wiring when the wiring of an electrical circuit and/or an electronic circuit is formed on a surface of a stretchable and/or bendable base material. The stretchable conductive paste includes (A) surface-treated silver particles and (B) a thermoplastic resin. The (A) surface-treated silver particles include a surface-treated layer.

A conductive paste that can reduce an increase in electrical resistance caused by stretching of a wiring when the wiring of an electrical circuit and/or an electronic circuit is formed on a surface of a stretchable and/or bendable base material. The stretchable conductive paste includes (A) surface-treated silver particles and (B) a thermoplastic resin. The (A) surface-treated silver particles include a surface-treated layer.

A liquid composition contains an inorganic oxide and an organic solvent represented by the following Chemical Formula 1,

##STR00001## where R.sub.1 and R.sub.2 each, independently represent straight chain alkyl groups or straight chain alkoxy groups, wherein the organic solvent has a topological index chai4v of 0.9 or greater.