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metal coating composition

A metal coating and composition technology, applied in the direction of polyurea/polyurethane coating, coating, synthetic resin layered products, etc., can solve the problem of no coating, etc., achieve simplified coating method, shorten coating time, and good separation Effect

Active Publication Date: 2020-09-25
DAI NIPPON TORYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] On the other hand, among metallic paints containing bright pigments, there are paints that do not presuppose the use of a primer (Patent Document 1)

Method used

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Examples

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Embodiment

[0117] 1. Preparation of Metallic Coating Composition

[0118] The metal coating compositions of Production Examples 1 to 8 were prepared using the following components.

[0119] [Scaly Brightness Pigment]

[0120] Trade name: Z485 (manufactured by Toyo Aluminum Corporation. Paste of aluminum flake pigment manufactured by pulverization method. Thickness: 0.15 μm. Particle size (D10): 4.9 μm. Particle size (D50): 11.7 μm. Particle size (D90) : 33.6μm. Aspect ratio (D50 / thickness): 78. Difference between D90 and D10: 28.7μm)

[0121] Product name: 5680NS (manufactured by Toyo Aluminum. Paste of aluminum flake pigment manufactured by pulverization method. Thickness: 0.2 μm. Particle size (D10): 5 μm. Particle size (D50): 14.2 μm. Particle size (D90): 45.7 μm. Aspect ratio (D50 / thickness): 71. Difference between D90 and D10: 40.7μm)

[0122] Trade name: METALURE L-55350 (manufactured by Ekarut Corporation. Paste of aluminum flake pigment produced by vapor deposition. Thickness:...

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Abstract

The present invention provides a metal coating composition, which maintains the same brightness as the metal coating film obtained by the conventional 3C3B coating method, and has no surface unevenness of the coating film, and can be used in a simplified coating method. There is no color clouding and diffuse reflection of the painted film, and the light fastness of the painted film is excellent. Specifically, a metal coating composition is provided, which includes: (1) a scaly bright pigment, (2) a resin with a weight average molecular weight of 40,000 to 60,000 and a glass transition temperature (Tg) of -25 to 40°C, and (3) Solvent.

Description

technical field [0001] This invention relates to metallic coating compositions. Background technique [0002] Metallic paints containing glittering pigments are known as means for imparting a shiny metallic design to a base material. [0003] For example, for an aluminum wheel (substrate), a metallic paint containing a scaly aluminum pigment (brightening pigment) produced by a vapor deposition method and a nitrocellulose-based resin in a solvent is used. Since this metallic paint uses a flake-like aluminum pigment as a glittering pigment, it is possible to impart a metallic design with a dense finish and a high glossiness to the base material without giving a grainy feeling of aluminum. [0004] This metallic paint is applied with a thin coating film thickness (for example, 2 to 3 μm) in order to increase the orientation of the scaly aluminum pigment in the coating film and obtain a glossy feeling. [0005] As a method of coating with a thin coating film thickness, the 3-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D201/00B05D1/36B05D5/06B05D7/24B32B27/20C09D7/40C09D175/04
CPCB05D1/36B05D5/06B05D7/24B32B27/20C09D7/40C09D175/04C09D201/00
Inventor 市川贵士山口正夫井上贵公
Owner DAI NIPPON TORYO CO LTD
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