Metal pigment composition

一种金属颜料、组合物的技术，应用在颜料浆料、无机颜料处理、染色低分子有机化合物处理等方向，能够解决金属颜料色调的降低等问题，达到遮盖力以及闪烁感优异、良好涂料贮藏稳定性和亮度的效果

Inactive Publication Date: 2009-09-23
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the methods described in these prior art documents cannot avoid the reduction of the color tone of metallic pigments

Method used

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  • Metal pigment composition
  • Metal pigment composition
  • Metal pigment composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In 135 g of a commercially available aluminum paste (Asahi Kasei Chemical Co., Ltd., trade name "GX-3100 (average particle size 10.5 μm, non-volatile content 74%)"), add 0.2 parts by weight to 100 parts by weight of flake aluminum powder Phosphotungstomolybdic acid (W=6, Mo=6) dimethylethanolamine salt was kneaded at 60° C. for 48 hours.

Embodiment 2

[0059] In 135 g of a commercially available aluminum paste (Asahi Kasei Chemical Co., Ltd., trade name "GX-3100 (average particle size 10.5 μm, non-volatile content 74%)"), add 0.5 parts by weight to 100 parts by weight of flake aluminum powder Triethanolamine phosphotungstic acid was kneaded at 90°C for 24 hours.

Embodiment 3

[0061] Add 232 g of propylene glycol monomethyl ether to 68 g of commercially available aluminum paste (Asahi Kasei Chemical Co., Ltd., trade name "GX-3100 (average particle size: 10.5 μm, non-volatile content: 74%)") to obtain a slurry concentration of 16.7%. In this slurry, 1.6 parts by weight of dioctylamine phosphomolybdate was added to 100 parts by weight of flake aluminum powder, and stirred at 40° C. for 5 hours. Thereafter, the slurry was filtered to obtain an aluminum pigment composition having a nonvolatile content of 78%.

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Abstract

Disclosed is a metal pigment composition which can be used in an aqueous coating and shows excellent storage stability of a coating agent, and which is reduced in the deterioration of glossiness, hiding power, flip-flop property and the like when formed into a coating film. Specifically disclosed is a metal pigment composition which is treated with at least one amine salt of a heteropoly acid. The heteroatom constituting the heteropoly acid is at least one element selected from the elements belonging to Groups III, IV and V. The polyatom constituting the heteropoly acid is a transition metal. The amount of the amine salt of the heteropoly acid is preferably 0.01 to 10 parts by weight relative to 100 parts by weight of a metal pigment. The metal pigment is preferably an aluminum flake.

Description

technical field [0001] The present invention relates to metallic pigment compositions suitable for coating compositions, especially aqueous coatings. Background technique [0002] In recent years, in the field of coatings, water-based coatings containing very little or no organic solvents have been used more and more as a measure to save resources and become pollution-free. In addition, due to the remarkable technological progress of water-based coatings, the high-quality appearance that was previously only available with solvent-based coatings can now be achieved with water-based coatings. [0003] However, among metallic paints containing metal pigments such as aluminum and zinc, there are still few examples of practical water-based paints. The reason is that metallic pigments are prone to corrosion in water-based paints. When there are metallic pigments in water-based paints, according to the properties of various metals, corrosion is caused by water in any one or more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/62C09C1/64C09C3/06C09C3/08C09D7/62
CPCC09C1/644C09D7/1225C09D17/006C09D5/36C01P2004/20C09C1/648C08K9/04C09D7/1291C09C1/62C08K3/08C09D7/62C09D7/70
Inventor 中岛和子胜田成树
Owner ASAHI KASEI KK
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