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Luminant white paint and preparation method thereof

A white paint, bright technology, used in polyester coatings, coatings, etc., can solve the problems of too many volatile solvents, time-consuming, and insufficient paint film, achieve super hiding power and filling, reduce construction times, paint Membrane plump and bright effect

Active Publication Date: 2012-07-04
NIPPON PAINT GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many traditional bright white paints use soybean oil alkyd resin, and the paint film is not full enough after drying and looks shriveled; the use of ordinary TDI type curing agent will cause the paint film to turn yellow in less than half a year, affecting the beauty and beauty of furniture; Only titanium dioxide affects the filling performance of the product. It takes many layers of construction to cover the sand marks of the previous layer, which takes too much man-hours; the traditional bright white paint also uses the main paint: curing agent: thinner = 2:1:1 Compared with this kind of ratio, there are more volatile solvents, which not only causes a waste of resources, but also pollutes the environment and damages people's health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of embodiment of bright white paint of the present invention, comprises the component of following weight:

[0039] Main paint: 350g alkyd resin (composed of synthetic fatty acid short oil alkyd with a solid content of 80% and castor oil short oil alkyd with a solid content of 70%), dispersant: polymer modified polyurethane polymer 50g (purchased from BYK, Germany), titanium dioxide 350g, extender pigment: calcium carbonate 100g, anti-settling agent: organic bentonite 3g, leveling agent: polyether modified dimethyl siloxane leveling agent 4g, defoamer : Silicone defoamer 2g (purchased from BASF, Germany), anti-yellowing agent 6g, solvent: xylene 220g;

[0040] Curing agent: solvent: ethyl acetate 100g, dehydrating agent 1.5g, HDI curing agent 600g (purchased from Bayer, Germany), TDI curing agent 400g (purchased from Bayer, Germany);

[0041] Diluent: 600g of ester solvent, 400g of ketone solvent.

[0042] The bright white paint described in this embodiment is pr...

Embodiment 2

[0048] A kind of embodiment of bright white paint of the present invention, comprises the component of following weight:

[0049] Main paint: alkyd resin 400g (mixed from synthetic fatty acid short oil alkyd with a solid content of 60% and castor oil short oil alkyd with a solid content of 80%), dispersant: high pigment affinity group Molecular block copolymer 35g (purchased from German BYK company), titanium dioxide 300g, extender pigment: barium sulfate 150g, anti-settling agent: fumed silica 5g, leveling agent: polydimethylsiloxane 2g, disinfectant Foaming agent: 5g of fluorine-modified polyacrylate defoamer (purchased from BASF, Germany), 10g of anti-yellowing agent, solvent: 200g of toluene;

[0050] Curing agent: solvent: 200g propyl acetate, 2g dehydrating agent, 650g HDI curing agent (purchased from BASF, Germany), 300g TDI curing agent (purchased from BASF, Germany);

[0051] Diluent: 700g of ester solvent, 300g of ketone solvent.

[0052] The bright white paint des...

Embodiment 3

[0058] A kind of embodiment of bright white paint of the present invention, comprises the component of following weight:

[0059] Main paint: 360g alkyd resin (composed of synthetic fatty acid short oil alkyd with a solid content of 85% and castor oil short oil alkyd with a solid content of 60%), dispersant: polyacrylamide 30g, titanium dioxide 400g , Extender pigment: magnesium silicate 200g, anti-settling agent: hydrogenated castor oil 2g, leveling agent: polymethylphenylsiloxane 3g, defoamer: organosilicon defoamer 4g (purchased from German BYK company ), anti-yellowing agent 5g, solvent: ethyl acetate 250g;

[0060] Curing agent: solvent: ethyl acetate 150g, dehydrating agent 1g, HDI type curing agent 700g (purchased from Bayer, Germany), TDI type curing agent 350g (purchased from Bayer, Germany);

[0061] Diluent: 650g of ester solvent, 400g of ketone solvent.

[0062] The bright white paint described in this embodiment is prepared by the following steps:

[0063] (1) ...

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PUM

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Abstract

The invention discloses a luminant white paint. The luminant white paint is obtained by mixing a main paint, a curing agent and a diluent according to a mass ratio, wherein the main paint comprises the following components in parts by weight: 35-40 parts of alkyd resin, 3-5 parts of dispersing agent, 30-40 parts of titanium white powder, 10-20 parts of extender pigment, 0.2-0.5 parts of anti-setting agent, 0.2-0.4 parts of leveling agent, 0.2-0.5 parts of antifoaming agent, 0.5-1.0 parts of anti-yellowing agent and 20-25 parts of main paint solvent; the curing agent comprises the following components in parts by weight: 10-20 parts of curing agent solvent, 0.1-0.2 parts of dehydrating agent, 60-70 parts of HDI (Hexamethylene Diisocyanate) type curing agent and 30-40 parts of TDI (Toluene Diisocyanate) type curing agent; and the diluent comprises the following components in parts by weight: 60-70 parts of ester solvent and 30-40 parts of ketone solvent. The luminant white paint disclosed by the invention has the advantages of rapidness for leveling after being sprayed, full paint film, rockiness and scratch resistance. Meanwhile, the invention also discloses a preparation method of the luminant white paint.

Description

technical field [0001] The invention relates to a white paint and a preparation method thereof, in particular to an oily polyurethane bright white paint for wood decoration and a preparation method thereof. Background technique [0002] At present, in the furniture market, bright white furniture is more and more favored by consumers. Many traditional bright white paints use soybean oil alkyd resin, and the paint film is not full enough after drying and looks shriveled; the use of ordinary TDI type curing agent will cause the paint film to turn yellow in less than half a year, affecting the beauty and beauty of furniture; Only titanium dioxide affects the filling performance of the product. It takes many layers of construction to cover the sand marks of the previous layer, which takes too much man-hours; the traditional bright white paint also uses the main paint: curing agent: thinner = 2:1:1 Compared with this kind of ratio, there are more volatile solvents, which not only...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D7/12
Inventor 贺丹丹李庆安张先成何仲科田山山
Owner NIPPON PAINT GUANGZHOU
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