Light extinction composition

A composition and extinction technology, applied in the coating and other directions, can solve the problems of low shrinkage, high volatile organic content, affecting the extinction effect of silica, etc., and achieve the effect of stable gloss and convenient operation.

Active Publication Date: 2009-05-27
ETERNAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of matting agent will generate a lot of dust during use, and usually needs to be used with a solvent, so the content of volatile organic compounds (VOC) may be too high, which does not meet environmental protection requirements
In addition, general radiation curing co

Method used

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  • Light extinction composition
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  • Light extinction composition

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] According to a preferred embodiment of the present invention, the acrylate monomer of formula (V) has formula (V) 1 ):

[0041]

[0042] Where Y 5 ’Is methyl or isopropyl; Y 4 'Is hydrogen or methyl; m'is an integer selected from 6-12.

[0043] The present invention also provides a method for preparing a matting composition, which comprises:

[0044] (a) Modification of clay with quaternary ammonium cations selected from the group consisting of quaternary ammonium cations of formula (I), quaternary ammonium cations of formula (II) or mixtures thereof, to prepare a modified clay; and

[0045] (b) Combining the modified clay prepared in step (a) with at least one acrylate monomer (preferably at least one acrylate monomer selected from formula (III) and formula (IV)) and optional The other acrylate monomer (preferably the acrylate monomer of formula (V)) which is incompatible with the above-mentioned acrylate monomer is mixed to prepare a matting composition;

[0046] The qu...

Example Embodiment

[0049] [Preparation example]

[0050] Preparation of modified clay

[0051] Disperse 20 grams of clay [China Glaze Company, CN-C34 model], 8 grams of octadecyl trimethyl ammonium chloride and 5 grams of methacryloxyethyl trimethyl ammonium chloride in 100-400 ml of ethanol. Mix the solution with water (weight ratio 1:1), gradually increase the temperature to 50 to 85°C, keep it for 8 to 12 hours, then cool down and filter, and then wash thoroughly with a mixed solution of ethanol and water until it is 0.1M AgNO 3 Solution can not detect Cl - Until it exists, it is pulverized after vacuum drying and passed through a 200-mesh sieve for later use.

[0052] Preparation of matting composition A of the present invention

[0053] The modified clay prepared above was mixed with the monomer EM222 (dipropylene glycol diacrylate, purchased from Eternal Chemical Co., LTD.), and stirred for 10 to 24 hours to make it uniformly dispersed. The modified clay content is about 30 wt%, and the monome...

Example Embodiment

[0065] [Example 13-20]

[0066] The matting composition A and matting composition B of the preparation example were mixed with an ultraviolet curable resin, uniformly dispersed, and then coated on a cardboard. After the coating was cured by ultraviolet light, the 60° gloss was measured, and the results were recorded in Table 2. in. For comparison with known matting agents, the amount of matting composition A is such that the amount of modified clay (inorganic) contained therein reaches 1.5, 3, 4.5 and 6 grams; in addition, depending on the matting composition A and matting composition B As the amount of monomer increases, the amount of photoinitiator Darocur 1173 should be increased accordingly.

[0067]

[0068]From the results in Table 1 and Table 2, we can see that increasing the amount of matting agent can achieve the effect of reducing gloss. Comparing the results of Comparative Examples 1-12 and Examples 13-16, it can be seen that in the known matting agent TS100 or the ma...

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Abstract

The invention provides an extinction composition, which comprises modified clay and at least one acrylic ester monomer, wherein the content of the modified clay accounts for at least 0.5 percent of the total weight of the extinction composition. The extinction composition can be used for radiation curing coatings, and has the characteristics of convenient operation, stable glossiness and the like.

Description

technical field [0001] The invention relates to a matting composition, especially a matting composition applicable to radiation-cured coatings. Background technique [0002] With the improvement of living standards, consumers' aesthetic concepts are more and more inclined to leisure, fashion and personalization. Therefore, bright-colored high-gloss coatings are gradually no longer favored by consumers. On the other hand, after high-gloss coatings are formed into films The reflection is serious, and it is easy to hurt the eyes of the observer. On the contrary, the coating with low gloss can greatly reduce the eye damage of the observer, and can hide small defects on the surface of the coating, so that it has a satisfactory Appearance, therefore, is particularly suitable for applications in wood, furniture or interior decoration of various vehicles. Matting is the use of various methods to reduce the gloss of the coating. The glossiness of the coating mainly depends on the s...

Claims

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Application Information

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IPC IPC(8): C08F20/28C08F22/12C08K9/04C09D4/02C09D5/00
Inventor 王宏宇黄瑞村
Owner ETERNAL MATERIALS CO LTD
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