The present disclosure is drawn to polymeric photoactive agent compositions. The polymeric photoactive agent composition can include a polymeric photoactive agent including a xanthone analog modified with a polyether chain connecting to the xanthone analog through an ether linkage. The polymeric photoactive agent can be present in a reaction product mixture with either i) a xanthone analog modified with a hydroxyl group, or ii) a carbonate base.

The present disclosure is drawn to polymeric photoactive agent compositions. The polymeric photoactive agent composition can include a polymeric photoactive agent including a xanthone analog modified with a polyether chain connecting to the xanthone analog through an ether linkage. The polymeric photoactive agent can be present in a reaction product mixture with either i) a xanthone analog modified with a hydroxyl group, or ii) a carbonate base.

A dual-cure method for forming a solid polymeric structure is provided. An end-capped, imide-terminated prepolymer is combined with at least one photopolymerisable olefinic monomer, at least one photoinitiator, and a diamine, to form a curable resin composition, which, in a first step, is irradiated under conditions effective to polymerize the at least one olefinic monomer, thus forming a scaffold composed of the prepolymer and the polyolefin with the diamine trapped therein. The irradiated composition is then thermally treated at a temperature effective to cause a transimidization reaction to occur between the prepolymer and the diamine, thereby releasing the end caps of the prepolymer and providing the solid polymeric structure. A curable resin composition comprising an end-capped, imide-terminated prepolymer, at least one photopolymerisable olefinic monomer, at least one photoinitiator, and a diamine, is also provided, as are related methods of use.

A quantum-dot containing complex includes: a first ligand, which is a hydrocarbon compound including a hydrophilic moiety and a lipophilic moiety and has an aspect ratio of 5 or more; and a second ligand, which is a hydrocarbon compound including a hydrophilic moiety and a lipophilic moiety and has an aspect ratio of 4 or less, wherein the hydrophile-lipophile balances (HLBs) of the first ligand and the second ligand are each independently 7 or more.

The present teachings relate to various embodiments of an ink composition, which once printed and cured forms an organic thin film on a substrate such as, but not limited by, an OLED device substrate. Various embodiments of the ink composition include a polyethylene glycol di(meth)acrylate in combination with an alkoxylated aliphatic di(meth)acrylate monomer, which acts as a controlled spreading modifier.

A method and apparatus for forming an optical device are described. The optical device is formed by depositing a plurality of ink drops on a surface of a substrate. The plurality of ink drops are contained within a chemical stopper, such that the chemical stopper surrounds each individual ink drop. The chemical stopper is configured to reduce reflow of the ink drops and is a fraction of the height of each of the ink drops. The ink drops are baked after being deposited within the chemical stoppers as liquid ink drops.

Compounds useful for formulating inks, 3D printing resins, molding resins, coatings, sealants and adhesives which exhibit reduced shrinkage stress and high hardness and stiffness when cured are described which include a single free radical-polymerizable functional group, one or more urethane and/or ureido linkages and one or more cyclic structural elements per molecule.

Compounds useful for formulating inks, 3D printing resins, molding resins, coatings, sealants and adhesives which exhibit reduced shrinkage stress and high hardness and stiffness when cured are described which include a single free radical-polymerizable functional group, one or more urethane and/or ureido linkages and one or more cyclic structural elements per molecule.

A radiation-curing ink jet ink composition includes a urethane (meth)acrylate including one (meth)acryloyl group, the amount of the urethane (meth)acrylate being 5.0% by mass or more and 30.0% by mass or less of the total amount of the ink composition, and a (meth)acrylate including an aromatic ring and one (meth)acryloyl group, the amount of the (meth)acrylate being 4.0% by mass or more and 50.0% by mass or less of the total amount of the ink composition.

A radiation-curing ink jet ink composition includes a urethane (meth)acrylate including one (meth)acryloyl group, the amount of the urethane (meth)acrylate being 5.0% by mass or more and 30.0% by mass or less of the total amount of the ink composition, and a (meth)acrylate including an aromatic ring and one (meth)acryloyl group, the amount of the (meth)acrylate being 4.0% by mass or more and 50.0% by mass or less of the total amount of the ink composition.