Abstract: A polymeric amine synergist is disclosed herein. An example of the polymeric amine synergist includes an aniline moiety, a polyethylene glycol chain, and an ether linkage attaching one end of the polyethylene glycol chain to the aniline moiety. The polymeric amine synergist may be included in a photo curable ink composition.

Abstract: The present disclosure is drawn to polymeric amine synergist compositions. The polymeric amine synergist composition can include a polymeric amine synergist including an aminobenzene modified with a polyether chain connecting to the aminobenzene through an ether linkage. The polymeric amine synergist can be present in a reaction product mixture with either i) an aminophenol, or ii) a carbonate base.

Abstract: The present disclosure is drawn to polymeric amine synergists, photo curable inks containing the polymeric amine synergists, and methods of making the photo curable inks. A polymeric amine synergist can include an aminobenzene modified with a polyether chain connecting to the aminobenzene through an amide linkage.

Abstract: The present disclosure is drawn to polymeric photoactive agent, photo curable inks containing the polymeric photoactive agent, and methods of making the photo curable inks. The polymeric photoactive agent can include a xanthone analog modified with a polyether chain connecting to the xanthone analog through an ether linkage.

Abstract: The present disclosure is drawn to polymeric photo active agents, photo curable inks containing the polymeric photo active agents, and methods of making the photo curable inks. A polymeric photo active agent can include a xanthone analog modified with a polyether chain connecting to the xanthone analog through an amide linkage.

Abstract: An aqueous radiation curable dispersant formulation includes water and styrene acrylic resin stabilized thioxanthone derivative photoinitiator particles dispersed in the water. The styrene acrylic resin stabilized thioxanthone derivative photoinitiator particles have a volume-weighted mean diameter of less than 40 nm. The styrene acrylic resin stabilized thioxanthone derivative photoinitiator particles include a water-insoluble, thioxanthone derivative photoinitiator core having one, two, or three units, wherein a structure of the unit is: and x=2-12. When the water-insoluble, thioxanthone derivative photoinitiator core includes two units or three units, the units are covalently bonded together.

Abstract: 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.