E.i. Dupont De Nemours and Company

Eckart Gmbh

Axalta Coating Systems IP Co LLC

Byk-chemie Gmbh

Saint-gobain Rigips Gmbh

Phu Qui Nguyen

Mike Schneider

Carmen Flosbach

Peter Frese

Alfred Bubat

Dirk Schumacher

Oliver Struck

Martin Wulf

Uwe Wilkenhoener

Wolfgang Griesel

Hans-Jörg Kremitzl

Sebastian Hoefener

Hans-Peter Ebert

Marco Greb

Frank Niggemann

Franziska Isele

Karina Fuhrmann

Sebastian Höfener

Mariacarla Arduini-Schuster

Pär Winkelmann

Matthias Rydzek

Jochen Manara

Christian Grimm

A powder coating composition is provided herein. The powder coating composition includes a glycidyl-functionalized (meth)acrylic resin as a film-forming binder, a cross-linking agent (hardener) for the binder, particles chosen from the group comprising aluminum oxide AlOand aluminum hydroxide Al(OH)particles, and a coating additive, the wt % based on the total weight of the powder coating composition. A process for the production of a scratch resistant powder coating is also provided herein. The process includes the steps of a) applying a transparent clear coat or a pigmented top coat directly onto a substrate surface or onto a prior coating, and b) curing the clear coat or the top coat applied in step a) wherein the transparent clear coat or the pigmented top coat includes the powder coating composition.

Coating composition and method for producing powder coating

The invention relates to copper-containing metal pigments, wherein the copper-containing metal pigments have an elemental copper content of at least 50 wt.-%, relative to the total weight of the uncoated copper-containing metal pigment, wherein the copper-containing metal pigments have at least one enveloping metal oxide layer and at least one enveloping chemically non-reactive plastic layer, wherein the sum of the amounts of the at least one chemically non-reactive plastic layer and of the at least one metal oxide layer lies in a range of from 10 to 50 wt.-%, relative to the weight of the uncoated metal pigment, and the weight ratio of the at least one metal oxide layer to the at least one chemically non-reactive plastic layer lies in a range of from 1:2 to 1:20. The invention furthermore relates to a method for producing these pigments and the use thereof.

Copper-containing metal pigments with a metal oxide layer and a plastic layer, method for the production thereof, coating agent and coated object

The invention relates to a method for coating metallic effect pigments with silicon oxide, in which alkoxysilane(s) and/or silicon halide(s) in organic solvent are reacted with water in the presence of metallic effect pigments, where the reaction includes at least two steps, where (a) the reaction is carried out with addition of acid in a first step and with addition of base in a second step or where (b) the reaction is carried out with addition of base in a first step and with addition of acid in a second step. The invention further relates to the coated metallic effect pigments producible by way of the method of the invention, and also to the use thereof.

[object Object]

Metallic effect pigments with a platelet-shaped metallic substrate. The pigments have at least one metal oxide layer. Covalently bonded to the surface of the metal oxide layer is a polysiloxane of formula I: where Ris a saturated or unsaturated, straight-chain or branched alkyl radical having 1 to 30 carbon atoms and/or an aryl radical, alkylaryl radical or arylalkyl radical having 6 to 30 carbon atoms; R, R, Rand Rindependently of one another are saturated or unsaturated, straight-chain or branched alkyl radicals having 1 to 6 carbon atoms and/or aryl radicals, alkylaryl radicals and/or arylalkyl radials having 6 to 12 carbon atoms; x=1 to 200, y=2 to 30; A is (CH), O, S, (OCHCH)or CR, where n=0 or 1 and m=0 to 30 and Ris H and/or alkyl having 1 to 6 carbon atoms; B is (CH)or (OCHCH), z=0 to 30 and w=0 to 30; and Rand Rindependently of one another are O or a saturated or unsaturated, straight-chain or branched alkyl radical having 1 to 6 carbon atoms and/or an aryl radical, alkylaryl radical or arylalkyl radical having 6 to 9 carbon atoms, where X is O or OH and is attached to the pigment surface. The disclosure further relates to a method for producing metallic effect pigments and to their use in powder coatings, more particularly in powder coatings produced by mixing methods, as well as to the use of these powder coatings. Finally, the disclosure also relates to powder coatings.

Metal effect pigments, method for the production and the use thereof and powder coating

The present invention provides a powder coating composition comprising at least one glycidyl-functionalised (meth) acrylic resin, 1 to 30 wt %, the wt % based on the total weight of component A), of at least one hydroxyl-functionalised alkyl acrylate alkyl methacrylate copolymer, and at least one component selected from the group consisting of pigments, fillers, cross-linking agents and/or coating additives different from component B). The powder coating composition of this invention can provide coatings having improved impact resistance, corrosion stability, heat resistance and weather resistance. The powder coating also has good properties including good flow behavior and durability against aggressive substances, such as, inorganic acids.

Powder coating composition and process of manufacture

The present invention provides a powder coating composition comprising

Powder coating composition providing low gloss

The invention relates to a process for the production of decorative coatings, comprising the following steps:

Process for the production of decorative coatings on substrates

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Moenchengladbach, Germany

Phu Qui Nguyen