A chitosan based coating system. The coating system includes a carrier agent and a chitosan based agent preservative. The carrier agent may be a cleaning agent, a polishing agent, and/or a finishing agent. The chitosan based agent may be a chitosan acetate and salts thereof, chitosan citrate acetate and salts thereof, or combinations thereof. The coating system may include 0.01-5 weight percent chitosan based agent. The chitosan based agent functions as a preservative to increase both the shelf-life and use-life of the coating system as well as functions as a chelating agent to reduce soap scum.

A chitosan based coating system. The coating system includes a carrier agent and a chitosan based agent preservative. The carrier agent may be a cleaning agent, a polishing agent, and/or a finishing agent. The chitosan based agent may be a chitosan acetate and salts thereof, chitosan citrate acetate and salts thereof, or combinations thereof. The coating system may include 0.01-5 weight percent chitosan based agent. The chitosan based agent functions as a preservative to increase both the shelf-life and use-life of the coating system as well as functions as a chelating agent to reduce soap scum.

Powder coating compositions, particularly metal packaging powder coating compositions, coated metal substrates, and methods; wherein the powder coating compositions include powder polymer particles comprising a polymer having a number average molecular weight of at least 2000 Daltons, wherein the powder polymer particles have a particle size distribution having a D50 of less than 25 microns; and, in certain embodiments, one or more charge control agents in contact with the powder polymer particles.

Powder coating compositions, particularly metal packaging powder coating compositions, coated metal substrates, and methods; wherein the powder coating compositions include powder polymer particles comprising a polymer having a number average molecular weight of at least 2000 Daltons, wherein the powder polymer particles have a particle size distribution having a D50 of less than 25 microns; and, in certain embodiments, one or more charge control agents in contact with the powder polymer particles.

The present disclosure provides a process. In an embodiment, the process includes forming an aqueous matte coating composition including A1) beads of a first acrylic polymer having an average particle diameter from 0.1 μm to 2 μm; A2) beads of a second acrylic polymer having an average particle diameter from 0.5 μm to 30 μm; B) an acrylic polymer binder; C) from 0.15 wt % to 2.5 wt % of a slip additive; D) from 0.10 wt % to 0.30 wt % of a defoaming agent; E) from 0.8 wt % to 1.5 wt % of a rheology modifier; and F) from 0.01 wt % to 0.1 wt % of at least one wetting agent. The aqueous matte coating composition is applied to a substrate and then dried to form a coating on the substrate.

The present disclosure provides a process. In an embodiment, the process includes forming an aqueous matte coating composition including A1) beads of a first acrylic polymer having an average particle diameter from 0.1 μm to 2 μm; A2) beads of a second acrylic polymer having an average particle diameter from 0.5 μm to 30 μm; B) an acrylic polymer binder; C) from 0.15 wt % to 2.5 wt % of a slip additive; D) from 0.10 wt % to 0.30 wt % of a defoaming agent; E) from 0.8 wt % to 1.5 wt % of a rheology modifier; and F) from 0.01 wt % to 0.1 wt % of at least one wetting agent. The aqueous matte coating composition is applied to a substrate and then dried to form a coating on the substrate.

The present disclosure provides a process. In an embodiment, the process includes forming an aqueous matte coating composition including A1) beads of a first acrylic polymer having an average particle diameter from 0.1 μm to 2 μm; A2) beads of a second acrylic polymer having an average particle diameter from 0.5 μm to 30 μm; B) an acrylic polymer binder; C) from 0.15 wt % to 2.5 wt % of a slip additive; D) from 0.10 wt % to 0.30 wt % of a defoaming agent; E) from 0.8 wt % to 1.5 wt % of a rheology modifier; and F) from 0.01 wt % to 0.1 wt % of at least one wetting agent. The aqueous matte coating composition is applied to a substrate and then dried to form a coating on the substrate.

A treatment liquid for a screen printing plate is disclosed that contains a resin, water, a surfactant A, and a surfactant B having a solubility in water lower than a solubility of the surfactant A in water. A method for treating a screen printing plate is also disclosed.

An article includes a substrate with a surface, a coating disposed over the surface, and a subtractive colorant which absorbs electromagnetic radiation according to a specified absorption spectrum. The coating includes a binder material and a plurality of porous polymer particles having pores with a distribution of pore sizes adapted to scatter electromagnetic radiation in one or more specified wavelength bands, wherein the porous polymer particles have a shell which is impermeable to a liquid.

An article includes a substrate with a surface, a coating disposed over the surface, and a subtractive colorant which absorbs electromagnetic radiation according to a specified absorption spectrum. The coating includes a binder material and a plurality of porous polymer particles having pores with a distribution of pore sizes adapted to scatter electromagnetic radiation in one or more specified wavelength bands, wherein the porous polymer particles have a shell which is impermeable to a liquid.