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Flake pigment, powder coating material containing the flake pigment, powder coated film obtained by coating with frictional electrification-type electrostatic coating apparatus using the powder coating material, coated product with the powder coated film, and process for producing flake pigment

A pigment and flake technology, applied in powder coatings, fibrous fillers, coatings, etc., can solve problems such as uneven color, achieve excellent adhesion, excellent metallicity and high brightness, and suppress color unevenness Effect

Inactive Publication Date: 2011-02-02
TOYO ALUMINIUM KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] However, as long as the powder coating prepared by the dry mixing method is applied by the corona method, even such excellent pigments cannot solve the above-mentioned problems specific to corona, and cause color unevenness

Method used

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  • Flake pigment, powder coating material containing the flake pigment, powder coated film obtained by coating with frictional electrification-type electrostatic coating apparatus using the powder coating material, coated product with the powder coated film, and process for producing flake pigment
  • Flake pigment, powder coating material containing the flake pigment, powder coated film obtained by coating with frictional electrification-type electrostatic coating apparatus using the powder coating material, coated product with the powder coated film, and process for producing flake pigment
  • Flake pigment, powder coating material containing the flake pigment, powder coated film obtained by coating with frictional electrification-type electrostatic coating apparatus using the powder coating material, coated product with the powder coated film, and process for producing flake pigment

Examples

Experimental program
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Effect test

Embodiment 1

[0186] A slurry containing flake particles (trade name "7640NS", produced by Toyo Aluminum Kabushiki Kaisha; containing aluminum flakes each having an average particle size of 17 μm and an average thickness of 0.4 μm as flake particles) was charged into a filter apparatus, The slurry was washed with twice the amount of mineral spirits as the slurry. After sufficient filtration, by performing kneading and mixing for 5 minutes using a kneader-mixer, a part of the slurry was taken out, and the nonvolatile components were quantified. As a result, the non-volatile components accounted for 80.3%. Then, 373.8 g of the washed slurry was charged into a kneader-mixer, 195.8 g of cyclohexanone was added thereto, and the slurry was kneaded and mixed until it became uniform.

[0187] Then, 25.7 g of the above copolymer A solution was diluted with 502 g of cyclohexanone, which was gradually added to the above slurry being kneaded and mixed. After the addition, kneading and mixing were fur...

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Abstract

Disclosed is a flake pigment characterized in that the flake pigment comprises flake particles, a film having a single-layer or multilayer structure and covering the surfaces of the flake particles, and fine particles, the outermost layer of the film contains a copolymer comprising one or more kinds of first bonding units derived from a fluorine-containing fluorine-type polymerizable monomer and one or more kinds of second bonding units derived from a phosphate group-containing polymerizable monomer, and the fine particles are fixed through the outermost layer and have such properties that impart frictional electrification properties to the flake pigment.

Description

technical field [0001] The present invention relates to flake pigments that impart high brightness to films while being free from color unevenness. More specifically, the present invention relates to a flake pigment comprising a coating having an outermost layer made of a copolymer containing fluorine derived from A first bonding unit derived from a polymerizable monomer and a second bonding unit derived from a polymerizable monomer having a phosphate group, on the cladding layer, fixed to provide triboelectric charging while being inserted into the outermost layer Characteristic fine grains. [0002] The invention also relates to powder coatings containing said flake pigments. The present invention also relates to a powder coating film exhibiting an appearance free from color unevenness as a result of coating a powder coating material containing flake pigments with a triboelectric charging type electrostatic coating device, and a coated article formed thereon. Furthermore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D5/03C09D201/00C09C3/10C09C1/64C09D7/62
CPCC08K9/08C09C1/644C09D7/1225C09C3/10C01P2004/20C01P2006/40C01P2004/03C09D7/1266C08K3/08C09D7/1275C08K3/22C09D5/035C09C1/648C09D7/1291C09C1/62Y02P20/582C09D7/62C09D7/67C09D7/68C09D7/70Y10T428/2982Y10T428/2998Y10T428/2991Y10T428/254C09C1/64C09D5/03
Inventor 高野靖森光太郎海住晴久
Owner TOYO ALUMINIUM KK
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