C09D5/034

CURABLE COATING MATERIAL FOR NON-IMPACT PRINTING
20240010859 · 2024-01-11 ·

A coating material which is 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 m, 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.

Powdered paint and electrostatic powder coating method

Provided is a powdered paint containing powdered particles and inorganic particles, the powdered paint having an attenuation factor AF.sub.[30-300] (%) represented by an absolute value of [(Q30Q300)/Q30] is 30% or more and 60% or less, wherein Q30 represents electric charge amount in an adherent layer including 100 g/m.sup.2 of the powdered paint adhered to a substrate 30 seconds after forming the adherent layer, and Q300 represents electric charge amount in the adherent layer 300 seconds after forming the adherent layer.

CURABLE COATING MATERIAL FOR NON-IMPACT PRINTING
20200239704 · 2020-07-30 ·

A non-impact printing device (301) comprising: a coating material (237) being curable and comprising a resin; the coating material comprising an amorphous resin portion in an amount of at least 30 w-% based on the overall amount of resin and comprising with respect to the entire amount of coating material less than 0.5 w-% of flow additive; a printing unit, in particular an electrophotographic printing unit, being configured for printing the coating material (237) so as to form a coating layer, wherein the coating layer forms at least part of a layer package comprising at least one layer; the non-impact printing device being configured for providing the layer package so as to define a surface structure with the layer package; wherein the surface structure is defined by a thickness variation of the layer package; wherein the thickness variation is in a range between 1 m and 1000 m, in particular in a range between 1 and 300 m, and is in particular more than 1 m, in particular more than 5 m, in particular more than 10 m and in particular more than 20 m.

CURABLE COATING MATERIAL FOR NON-IMPACT PRINTING
20200201201 · 2020-06-25 ·

A coating layer application device (200) for applying a coating layer, which is located on a transfer element, to a substrate, the coating layer (206) being formed from a coating material, in particular a thermosetting coating material, the coating layer (206) being curable and comprising an amorphous material, the coating layer application device comprising: a heating device (214, 220) being configured so as to (i) maintain the temperature of the coating layer (206) within a temperature range before removal of N the transfer element (204) from the coating layer (206), wherein within the temperature range the uncured coating material is in its supercooled liquid state; and/or (ii) partially cure the coating layer (206) during a contact of the coating layer (206) and the substrate (210) and before removal of the transfer element (204) from the coating layer, in particular by increasing the temperature of the coating layer (206) to a temperature at or above a curing temperature of the coating layer (206).

CURABLE COATING MATERIAL FOR NON-IMPACT PRINTING

Coating material (237) for generating a coating layer by non-impact printing wherein the coating layer represents an image and wherein a resolution of the image is at least 100 DPI, the coating material comprising a curable resin; wherein the coating material (237) exhibits a minimum viscosity when being heated from room temperature with a heating rate of 5 Kelvin per minute up to a temperature where curing of the coating material occurs, wherein the minimum viscosity is in a range between 3 Pascal seconds to 20000 Pascal seconds, in particular in a range between 50 Pascal seconds and 10000 Pascal seconds and further in particular in a range between 250 Pascal seconds and 7000 Pascal seconds; and wherein a pill flow length is below 350 mm at a potential curing temperature which may be used to cure the coating material.

CURABLE COATING MATERIAL FOR NON-IMPACT PRINTING

A developer comprises: at least one carrier; and, in an amount of 10 wt-% or less, a coating material (237), in particular for generating a coating layer by non-impact printing, the coating material being provided in the form of particles and comprising: a curable resin preferably an at least partially thermal curable resin and even more in particular curable by a crosslinking agent able to react with functional groups of the resin, the resin comprising in particular an amorphous resin portion; wherein an average diameter of the particles is in a range between 1 m and 25 m; and wherein the particles have an average sphericity larger than 0.7, in particular larger than 0.8, in particular a sphericity larger than 0.9; wherein, if the coating material is heated from room temperature with a heating rate of 5 K per minute, the coating material upon heating reduces its viscosity down to a minimum viscosity and increases its viscosity upon further increase of the temperature; wherein the minimum viscosity is in a range between 3 Pascal seconds and 20000 Pascal seconds.

CURABLE COATING MATERIAL FOR NON-IMPACT PRINTING
20200002555 · 2020-01-02 ·

Coating material (237) being processable by non-impact printing to form at least a part of a coating layer (206) representing an image; the coating material (237) comprising an amorphous resin portion and being curable; the coating material (237) being configured for being applied with a thickness of at least 15 m; wherein preferably the coating material (237) is configured for being applied with a thickness of at least 20 in particular with a thickness of at least 30 further in particular with a thickness of at least 40 m; the coating material comprising one or more of the following: (i) a polyester resin comprising at least one incorporated acid monomer and wherein at least 10 weight percent of the at least one incorporated acid monomer is isophthalic acid; (ii) 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, in particular 2,2,4,4-tetraalkylcyclobutane-1,3-diol and/or 2,2,4,4-tetramethyl-1,3-cyclobutanediol; (iii) an acrylic resin; (iv) a fluorine containing polymer, in particular a hydroxyl functional fluorine polymer; (v) a polyurethane resin.

POWDER COATING COMPOSITION

An object of the present invention is to provide a hot-melt fluorine resin powder coating composition containing a filler, which has a large film thickness that can be coated once, a large limit film thickness for an overcoating, and can be thickly coated.

The present invention is a powder coating composition, which is a powder mixture, containing: first hot-melt fluorine resin particles having an average particle diameter of 2 to 100 m in which a filler is dispersed in the particles; second hot-melt fluorine resin particles having an average particle diameter of 10 to 200 m; and charge controlling agent particles.

METAL PACKAGING POWDER COATING COMPOSITIONS, COATED METAL SUBSTRATES, AND METHODS
20240150584 · 2024-05-09 ·

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.

POWDERED PAINT AND ELECTROSTATIC POWDER COATING METHOD

Provided is a powdered paint containing powdered particles and inorganic particles, the powdered paint having an attenuation factor AF.sub.[30-300] (%) represented by an absolute value of [(Q30Q300)/Q30] is 30% or more and 60% or less, wherein Q30 represents electric charge amount in an adherent layer including 100 g/m.sup.2 of the powdered paint adhered to a substrate 30 seconds after forming the adherent layer, and Q300 represents electric charge amount in the adherent layer 300 seconds after forming the adherent layer.