A coating material processable by non-impact printing to form at least a part of a coating layer representing an image, the coating material having an amorphous resin portion, is curable and is configured for being applied with a thickness of at least 15 μm, the coating material having one or more of the following: a polyester resin having at least one incorporated acid monomer and wherein at least 10 weight percent of the at least one incorporated acid monomer is isophthalic acid; a polyester resin containing 1 to 100 w-% of cycloaliphatic glycol compounds with respect to the total weight of the glycol compounds of the polyester resin component; an acrylic resin; a fluorine containing polymer; a polyurethane resin.

The present application is directed to a multifunctional coating for operation at temperatures in excess of 150° C., and up to 300+° C. The multifunctional coating includes: a) one or more polysilazanes (i.e., a group of silicon-based polymers) that include inorganic and/or organic functionalized polysilazane; b) one or more secondary polymeric additives one or more secondary polymeric additives (e.g., siloxane compounds and/or polysilane compounds); c) one or more optional functionalized nanoparticles and/or fillers; d) one or more optional additive polymers that include: i) Polysulfones (PSF) such as Polyethersulfone (PES) and/or Polyphenylene sulfide (PPS); ii) Polyimides (PI); iii) Polybenzimidazole (PBI); iv) Polybenzoxazoles (PBO); and/or v) fluoropolymers including Polytetrafluoroethylene (PTFE), Polyvinylidene fluoride or polyvinylidene difluoride (PVDF), Fluorinated ethylene propylene (FEP), and/or hexafluoropropylene (HFP); e) one or more optional additives (e.g., biocide, foaming agent, surface tension agent, pigment, curing agent, surface friction reducing agent, stabilizers, flexibilizers, inhibitors, flow control agents, anti-oxidants, degassing agents, dyes, coupling agent, dispersing agents, catalyst and/or hardeners; etc.); and f) one or more optional solvents; and which multifunctional coating is formulated such that it can optionally i) function as a high-temperature insulator, ii) have high elongation and/or improved hydrolytic stability, iii) have extreme weather resistance, iv) have high chemical resistance, v) have high impact and/or abrasion resistance, and/or vi) have improved thermal cycling resistance.

The invention relates to a one-component powder coating composition comprising a curing system comprising a curable resin and one or more curing additives for curing the curable resin, wherein the powder coating composition comprises: —one powder coating component comprising the curable resin and the one or more curing additives; and—in the range of from 0.5 to 25 wt % of a dry-blended inorganic particulate additive consisting of inorganic components i), ii), and iii), wherein component i) is non-coated aluminium oxide or non-coated silica, component ii) is aluminium hydroxide and/or aluminum oxyhydroxide, and component iii) is silica, and wherein, if component i) is non-coated silica, component iii) does not comprise non-coated silica, wherein the dry-blended inorganic particulate additive comprises a first and a second silica wherein the first silica is a surface-treated silica with a negative tribocharge, and the second silica is non-coated silica or is a surface-treated silica with a positive tribocharge wherein the wt % of the dry-blended inorganic additive is based on the weight of the one powder coating component, and wherein the powder coating component has a particle size distribution with a Dv90 of at most 50 μm and a Dv50 of at most 30 μm, wherein Dv90 and Dv50 are determined by laser diffraction according to ISO 13320 using the Mie model. The invention further relates to a substrate coated with such powder coating composition.

Disclosed are methods for minimizing x-ray scattering artifacts, the method comprising: contacting an object with an x-ray scattering mitigation material. The contacting can comprise coating the x-ray scattering material on the object, including spraying a solution of suspension of an x-ray scattering mitigation material onto the object or dry powder coating the object with a x-ray scattering mitigation material. Alternatively, the contacting can comprise immersing the object in a fluid comprising the x-ray scattering material. The fluid can be a gas, a liquid, or a gel. The disclosed x-ray scattering mitigation material can be optimized for mitigating Compton radiation scattering or for mitigating Rayleigh radiation scattering. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

A fluidized-bed coating method includes: immersing at least part of a workpiece in a powder coating material contained in a fluidized-bed vessel while air is introduced from a bottom of the fluidized-bed vessel at an average air flow rate of 5 mm/min or higher and 20 mm/min or lower per unit area of the bottom so that a floating ratio of the powder coating material is 5% or higher and 20% or lower, the workpiece having a temperature higher than or equal to a softening temperature of the powder coating material and lower than or equal to a melting temperature of the powder coating material; taking the workpiece out of the powder coating material; and heating the powder coating material attached to the workpiece.

A curable coating composition includes: (a) a binder having a film-forming resin with at least two functional groups, and (ii) a curing agent reactive with the functional groups of the film-forming resin; and (b) solid vulcanized rubber particles that are unreactive with the binder. The curable coating composition is a solid particulate powder coating composition. Multi-layer coating systems, coated substrates, and methods of preparing the curable coating composition are also disclosed.

The present invention provides a multi-phase structured UV-curable powder coating resin and a preparation method thereof, comprising (1) obtaining an emulsion of a liquid UV resin by heating the liquid UV resin and an emulsifier, dispersing, and adding deionized water for emulsification; (2) melting and dispersing a solid UV resin, a phase change agent, an emulsifier, and deionized water; adding the emulsion of the liquid UV resin with stirring to thoroughly mix; temperature is lowered during the stirring to obtain a suspension; (3) press filtering the suspension of the UV-curable powder coating resin to obtain a filter cake; (4) drying and classifying the filter cake to obtain the multi-phase structured UV-curable powder coating resin. The multi-phase structured UV-curable powder coating resin is prepared from the aforementioned method. The present disclosure has the properties of both the liquid and solid UV resin and can be sprayed as a powder coating.

The invention relates to the field of powder coatings, and specifically discloses a heat-curable powder coating composition and a preparation method thereof. The powder coating composition comprises: i) component A comprising at least one amorphous solid polyester resin compound having a Michael donor reactive group; ii) component B comprising at least one amorphous ethylenically unsaturated solid polyester resin with a Michael acceptor reactive group; iii) component C comprising at least one (semi) crystalline solid reactive diluent; iv) component D comprising at least one epoxy group-containing solid substance; v) component E comprising at least one basic catalyst. The present invention also discloses a preparation method of the above heat-curable powder coating composition. By adopting the invention, ultra-low temperature curing can be realized. The curing temperature is as low as 90-110° C., and the curing time is short.

This invention relates to fusion bonded epoxy rebar powder coating compositions of enough latency overtime, which cure in seconds upon residual heat up to 239.0° C., exhibiting low temperature flexibility to achieve crack-free rebar bending at −45° C. and a glossy finish without yellowing or discoloration. This invention further relates to rebar powder coatings compounded using suitable dihydrazide amines as the curing agent, in combination with an executive resin blend including a compatible toughening epoxy, and a synergic catalyst package to meet the intended application challenges.

Provided is an antistatic powder coating composition, which includes single-walled carbon nanotubes (SWCNTs) having specific physical properties as a conductive additive, thereby providing an environmentally friendly coating exhibiting excellent coating workability and constantly demonstrating stable surface resistance, irrespective of the thickness of a film.