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Aqueous primer paint containing glossy pigment, and method for forming multilayer paint film using same

A water-based primer, coating method technology, applied in coatings, latex paints, devices for coating liquids on the surface, etc., to achieve the effect of excellent metal-like gloss and ensure water resistance adhesion

Active Publication Date: 2021-08-24
KANSAI PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating film formed by the coating material described in Patent Document 2 has problems such as water resistance and adhesion.

Method used

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  • Aqueous primer paint containing glossy pigment, and method for forming multilayer paint film using same
  • Aqueous primer paint containing glossy pigment, and method for forming multilayer paint film using same
  • Aqueous primer paint containing glossy pigment, and method for forming multilayer paint film using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0137] Hereinafter, an Example and a comparative example are given, and this invention is demonstrated more concretely. However, the present invention is not limited only to these Examples. In addition, "part" and "%" are both mass standards.

manufacture example 1

[0140] Put 100 parts of deionized water and 0.5 parts of Aquaron KH-10 (Note 1) into a reaction vessel equipped with a thermometer, a thermostat, a stirrer, a reflux cooler, and a dropping device, stir and mix in a nitrogen stream, and heat up to 80 ℃. Next, 1% and 10.3 parts of 3% ammonium persulfate aqueous solution of 1% of the total amount in the following monomer emulsion (1) were introduced into reaction container, and it held at 80 degreeC for 15 minutes. Then, the remaining monomer emulsion (1) was dripped into the reaction container over 3 hours, and aging was performed for 1 hour after the dripping was completed. Then, the following monomer emulsion (2) was dripped into the reaction vessel over 2 hours, and after aging for 1 hour, 42 parts of 2-(dimethylamino)ethanol 5% aqueous solution was slowly added to the reaction vessel while cooling to 30°C, filter and discharge with 100-mesh nylon cloth, use an average particle size of 100nm (submicron particle size distribu...

manufacture example 2～7

[0145] Water-dispersible acrylic polymer particles (A2) to (A7) were obtained in the same manner as in Production Example 1 except that the components shown in the following Table 1 were used. Together with the water-dispersible acrylic polymer particles (A1) obtained in Production Example 1, the solid content concentration, acid value and hydroxyl value of the obtained water-dispersible acrylic polymer particles (A1) to (A7) are shown in Table 1 below.

[0146] [Table 1]

[0147] Table 1

[0148]

[0149] (Note 2) Newcol562SN: manufactured by Nippon Emulsifier Co., Ltd., trade name, polyoxyethylene nonylphenyl ether sulfate sodium salt, active ingredient 30%.

[0150] Production example of water-soluble acrylic resin (B)

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Abstract

The present invention provides an aqueous primer coating material containing a glossy pigment capable of securing water-resistant adhesion and imparting metallic-like gloss, and a method for forming a multilayer coating film using the same. According to the present invention, there is provided a water-based primer coating material containing a glossy pigment, comprising: water-dispersible acrylic polymer particles (A), water-soluble acrylic resin (B), curing agent (C), and a A glossy pigment (D) obtained by pulverizing the metallized film to form a metal flake, the water-soluble acrylic resin (B) is N-substituted (meth)acrylamide (i), and a hydroxyl-containing polymerizable unsaturated monomer (ii) , a carboxyl group-containing polymerizable unsaturated monomer (iii), and a copolymer of other polymerizable unsaturated monomers (iv) other than (i) to (iii), and the pigment mass concentration in the range of 10 to 40% ( PWC) contains a glossy pigment (D).

Description

technical field [0001] The present invention relates to a water-based primer paint containing a glossy pigment capable of securing water-resistant adhesion and imparting a metallic luster, and a method for forming a multilayer coating film using the same. Background technique [0002] The painting of a vehicle body is generally carried out by applying an intermediate coat paint after applying an electroplating paint as an undercoat paint, and then applying a top coat paint thereon. [0003] As the coating method of top coat paint, for example, one coat one-baking method of applying one kind of top coat paint and heating and curing it; In the first layer of paint, the primer paint is applied first, the clear paint is applied on top of it without curing, and the 2-coat 1-baking method of heating and curing two coating films at the same time, etc. [0004] Among them, in the coating of the two-coat one-baking method, the use of a primer paint containing glossy pigments such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00B05D1/36B05D5/06B05D7/14C09D5/02C09D7/61C09D133/26
CPCC09D5/028C08K3/08C08K7/00C09D7/61C09D7/70C09D133/02B05D2202/10B05D7/532C08L33/26C09D133/26C09D133/00B05D5/06B05D7/14B05D7/02B05D2201/02B05D2202/15B05D2202/25B05D2401/20B05D2502/005B05D2601/10
Inventor 武田浩希岩本亨加藤广美梶间淳一富泽繁
Owner KANSAI PAINT CO LTD
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