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Stain-resistant water-based paint composition

A technology of water-based paint and composition, applied in the field of anti-fouling coating and anti-fouling water-based paint composition, which can solve the problems of more pores, poor coating compactness, and deterioration of anti-fouling property.

Active Publication Date: 2016-11-23
GUANGDONG HUARUN PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the PVC is too high, such as higher than 40%, the pores between the solid particles in the coating will increase significantly, the compactness of the coating will become poor, and the stain resistance will deteriorate significantly.

Method used

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  • Stain-resistant water-based paint composition
  • Stain-resistant water-based paint composition
  • Stain-resistant water-based paint composition

Examples

Experimental program
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specific Embodiment approach

[0023] The present invention provides a stain-resistant aqueous coating composition comprising: one or more aqueous latexes containing self-crosslinkable polymer particles; and one or more particulate solids, wherein the polymer particles having a Tg of 10°C or less, and the particulate solid comprises a combination of tabular particulate solids and spherical particulate solids, wherein the weight ratio of the tabular particulate solids to the spherical particulate solids is 1:1 or greater; And wherein the aqueous coating composition has a pigment volume concentration (PVC) of 45% or higher, and the aqueous coating composition is substantially free of volatile organic compounds. Preferably, the aqueous coating composition has a pigment volume concentration of 50% or higher.

[0024]As used herein, "aqueous latex" refers to a stable dispersion of a synthetic resin (ie polymer) in particulate form in an aqueous liquid medium, optionally with the aid of a suitable dispersing aid ...

Embodiment 1-2

[0125] The aqueous coating compositions of Examples 1-2 were prepared as follows.

[0126] Under stirring at a low speed of 350-450rpm / min, add 180g or 200g of deionized water and a certain amount of thickener Plus 330, wetting agent Tritox X-100, dispersant P30, defoamer SN154, Sodium carbonate in water, and stir for 5-10 minutes so that it is homogeneous. Then add granular solid rutile titanium dioxide R706, ground calcium carbonate GF-168, talc powder TA-800, and mica powder to the mixture, and stir at a high speed of 80-1250rpm / min for 20-30 minutes to form a uniform slurry. Finally, under medium-speed stirring at 500-700rpm / min, add mineral oil defoamer CF246, fluorine-containing additive FS 81, silicone resin emulsion BS 45, and optional high-boiling film-forming additive Colsoal to the homogeneous slurry 290, polyacrylic acid emulsion SF 506, CM1P5 bactericide, W350 fungicide, alkali swelling thickener TT935 and the remaining part of deionized water until uniform, ther...

Embodiment 3

[0133] In order to more clearly show the resistance of the water-based coating composition of the present invention to water-based stains and oily stains, Table 3 below summarizes the stain resistance of the water-based coating composition of Example 1 corresponding to different stains.

[0134] Table 3: Resistance of the stain-resistant aqueous coating composition of Example 1 to different stains

[0135]

[0136] As can be seen from the results of the above table 3, the water-based coating composition of the present invention has good tolerance to water-based stains and oil-soluble stains,

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Abstract

The invention relates to a stain-resistant water-based paint composition. The stain-resistant water-based paint composition is prepared from one or more kinds of water-based latex containing polymer particles capable of being self-crosslinked, and one or more kinds of particle solids. The Tg of the polymer particles is 10 DEG C or lower; the particle solids include a combination of flaky particle solids and spherical particle solids, and the weight ratio of the flaky particle solids to the spherical particle solids is 1:1 or higher. The pigment volume concentration of the water-based paint composition is 45% or higher, and the water-based paint composition contains few volatile organic compounds.

Description

technical field [0001] The present invention relates to an aqueous coating composition, and more particularly, to a stain-resistant aqueous coating composition with low VOC content and high PVC level. Furthermore, the present invention relates to stain-resistant coatings obtainable from the aforementioned aqueous coating compositions. Background technique [0002] At present, the poor pollution resistance of coatings has become one of the problems that plague the coatings industry and restrict the development of coatings. There are many kinds of pollution in the environment. A common source of pollution is particulate suspended matter in the air. Other common sources of pollution include water-based or oily pollutants that form dirt on the surface or inside of the coating through contact, such as black tea , coffee, water-based pigments, oil-based pigments, etc. These pollutants tend to scale on the coating surface under the action of one or more factors. For example, in ...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/12C09D5/16
CPCC09D5/00C09D5/16C09D7/40C08K3/34C08K2003/2241C09D107/00C08K2201/003C09D133/08C08K3/346C08K7/16C08K2003/265C08L33/08C08K3/22C08K3/26C08L9/06C08L61/06C08K3/04C08K3/36C08K3/06C08K5/34922C08F220/343C08K2201/005C08L2201/52
Inventor 胡荣海段刚熊荣斯蒂芬·科伦基维茨寇辉
Owner GUANGDONG HUARUN PAINT CO LTD
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