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A coating composition and a coating film formation method

A composition and coating technology, used in polyurea/polyurethane coatings, coatings, devices for coating liquids on surfaces, etc., can solve the balance between storage stability and curability, as well as insufficient water resistance and chemical resistance, Insufficient curability, etc., to achieve the effect of excellent chemical resistance, excellent curability, and excellent water resistance

Active Publication Date: 2017-10-27
KANSAI PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the coating composition described in Cited Document 2, the curability may become insufficient; in the case of only adjusting the catalyst amount, the balance between storage stability and curability, water resistance, and chemical resistance may become poor. insufficient

Method used

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  • A coating composition and a coating film formation method
  • A coating composition and a coating film formation method
  • A coating composition and a coating film formation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0216] 100 parts of castor oil (Note 1), 100 parts of TIPAQUE CR-95 (Note 30), 20 parts of HA-90T (Note 31), and 37.5 parts of butyl acetate were mixed and dispersed by a sand mill to obtain a dispersion paste. In the obtained dispersion paste, 0.5 part of bismuth neodecanoate, 0.5 part of naphthenic acid, and Sumidur N3300 (Note 33) of 1 equivalent to the hydroxyl group in castor oil were mixed, and butyl acetate was added so that the solid content reached 80%. The ester was stirred, thereby obtaining coating composition No. 1. The coating workability (pot life) (Note 36) test described later was performed on the obtained coating composition No. 1. The evaluation results are shown in Table 1.

Embodiment 2～72、 comparative example 1～12

[0218] Except that the compounding of each component in Example 1 was set to the compounding shown in Tables 1 to 6, the same operations as in Example 1 were performed to obtain coating composition Nos with a solid content of 80% shown in Tables 1 to 6 .2~No.83. In addition, among the components in Tables 1 to 6, the compounding amount of a substance in which the solid content or the effective ingredient content is described in the "Note" described later indicates the compounding amount (mass part) of the solid content or the effective ingredient.

[0219] Table 1

[0220]

[0221] Table 2

[0222]

[0223] table 3

[0224]

[0225] Table 4

[0226]

[0227] table 5

[0228]

[0229] Table 6

[0230]

[0231] The "Note" in the table is as follows.

[0232] (Note 1) Castor oil: hydroxyl value 160mgKOH / g, castor oil polyol, primary hydroxyl content: secondary hydroxyl content=0:100;

[0233] (Note 2) Sovermol 750: product name, manufactured by BASF company, hydroxyl value 315mgKOH / g, polyol...

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Abstract

The present invention provides a coating composition and a coating film formation method of the coating composition, which have extremely excellent storage stability and less dependency on the coating environment such as humidity after storage, and have excellent curability. The resulting coating film is excellent in impact resistance, bending resistance, water resistance and chemical resistance. The coating composition comprisses a polyol (A), a polyisocyanate compound (B), a curing catalyst (C), and a carboxylic acid (D) having 8 or more carbon atoms. The polyol (A) contains a polyol (A1) having a structural unit derived from a fatty acid having 8 or more carbon atoms. This component (C) contains a bismuth compound (C1)d. And the content of the component (D) is in the range of 0.1 part by mass to 10 parts by mass based on 100 parts by mass of the solid content of the polyol (A).

Description

Technical field [0001] The present invention relates to a coating composition and coating film formation that are excellent in storage stability of a coating composition and used to form a coating film having curability under high humidity conditions, as well as impact resistance, bending resistance, water resistance, and chemical resistance method. Background technique [0002] In the coating of industrial products such as blades and other components of automobile bodies, construction machinery bodies, wind turbines, etc., in recent years, from the viewpoints of energy saving, environmental impact reduction, and cost competition, coatings and coating films are required Long life and stable quality. [0003] In the past, hydroxyl / isocyanate-based crosslinked coatings that cure the main agent of a resin containing a hydroxyl group and a curing agent containing a polyisocyanate compound have been widely used in various coating fields; up to now, it has been cured in a short time. V...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/14C09D175/06C09D175/08C08G18/22B05D1/02
CPCB05D1/02C08G18/227C09D175/04C09D175/06C09D175/08C09D175/14
Inventor 石山雄一坂本明久日高贵弘
Owner KANSAI PAINT CO LTD
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