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Two-component middle coating primer

A primer and two-component technology, applied in coatings, polyester coatings, etc., can solve the problems of poor wear and scratch resistance and insufficient hardness of the coating, and achieve good wear and scratch resistance and high hardness. Effect

Inactive Publication Date: 2017-01-11
广东花王涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the currently used mid-coating primer, considering its application on outdoor woodware, has insufficient coating hardness and poor wear and scratch resistance. Therefore, it is necessary to improve and optimize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Acrylic resin 78.7%

[0041] Dispers610s dispersant 0.05%

[0042] Glide100 leveling agent 0.3%

[0043] EFKA-3600 leveling agent 0.11%

[0044] BYK-066N defoamer 0.3%

[0045] Xylene 3%

[0046] Methyl isobutyl ketone 3%

[0047] 20% Cellulose Acetate 12%

[0048] n-Butyl acetate 2%.

Embodiment 2

[0050] Acrylic resin 89.25%

[0051] Dispers610s dispersant 0.05%

[0052] Glide100 leveling agent 0.05%

[0053] EFKA-3600 leveling agent 0.05%

[0054] BYK-066N defoamer 0.1%

[0055] Xylene 1%

[0056] Methyl isobutyl ketone 1%

[0057] 20% Cellulose Acetate 8%

[0058] n-Butyl acetate 0.5%.

Embodiment 3

[0060] Acrylic resin 83.5%

[0061] Dispers610s dispersant 0.2%

[0062] Glide100 leveling agent 0.3%

[0063] EFKA-3600 leveling agent 0.5%

[0064] BYK-066N defoamer 0.2%

[0065] Xylene 2%

[0066] Methyl isobutyl ketone 2%

[0067] 20% Cellulose Acetate 10%

[0068] n-Butyl acetate 1.3%.

[0069] Primer coat:

[0070] A kind of two-component intermediate coating primer of the present invention, according to mass ratio, comprises following composition:

[0071] Saturated polyester resin 44%~66.25%

[0072] Synthetic fatty acid resin 15%~25%

[0073] 10% bentonite slurry 4% ~ 6%

[0074] Dispersant 0.5%~2%

[0075] Leveling agent 0.15%~0.5%

[0076] Defoamer 0.1%~0.3%

[0077] Xylene 1%~3%

[0078] Zinc stearate 2%~3.5%

[0079] n-Butyl acetate 0.5%

[0080] 20% cellulose acetate 8% ~ 12%

[0081] Light stabilizer 1%~2%

[0082] n-Butyl acetate 1.5%~3%

[0083] After the above ingredients are mixed, they are uniformly dispersed until the fineness is ≤35um,...

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PUM

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Abstract

The invention provides a two-component middle coating primer. The two-component middle coating primer is prepared from, by mass, 44%-66.25% of saturated polyester resin, 15%-25% of synthetic fatty acid resin, 4%-6% of bentonite slurry of 10%, 0.5%-2% of a dispersing agent, 0.15%-0.5% of a flatting agent, 0.1%-0.3% of an antifoaming agent, 1%-3% of xylene, 2%-3.5% of zinc stearate, 0.5% of n-butyl acetate, 8%-12% of cellulose acetate of 20%, 1%-2% of a light stabilizer and 1.5%-3% of n-butyl acetate; all the ingredients are mixed and dispersed to be even till the fineness is smaller than or equal to 35 microns, and the viscosity is 2,500 mpa.s / 25 DEG C to 3,500 mpa.s / 25 DEG C. The two-component middle coating primer has the advantages of being high in hardness, good in wear resistance and scratching resistance and capable of well meeting outdoor woodware.

Description

technical field [0001] The invention relates to a two-component intermediate coating primer. Background technique [0002] Wood varnishes for outdoor use are composed of three layers, namely, sealing primer, intermediate coating primer and top coat. The sealing primer has the characteristics of strong permeability and excellent sealing performance. The primer is used to strengthen the adhesion of the topcoat, making the topcoat more plump, delicate and smooth, and also has an anti-corrosion effect. The topcoat is the final coating of painting, and the paint effect presented after decoration or painting Rendered by topcoat. [0003] However, the currently used mid-coating primer is considered to be applied to outdoor woodware, and its coating hardness is not high enough, and its wear resistance and scratch resistance are relatively poor. Therefore, it is necessary to improve and optimize. Contents of the invention [0004] In order to overcome the deficiencies of the abov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D133/00C09D7/12
CPCC09D167/00C08L2205/035C09D133/00C08L1/12C08K13/02C08K3/346C08K5/098C08L23/06C08L77/00
Inventor 方学平杨长春严修才
Owner 广东花王涂料有限公司
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