Reworking agent of ultraviolet cured paint
A technology of curing coatings and ultraviolet light, which is applied in the direction of polyester coatings, coatings, etc., can solve problems such as recoating, and achieve good durability, high production efficiency, good toughness, hardness and wear resistance
Inactive Publication Date: 2012-12-12
GUANGZHOU QINGTIAN INDAL
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AI Technical Summary
Problems solved by technology
[0003] The purpose of this invention is to provide a repair agent for UV-curable coatings, which not only solves the problem of repairing UV-curable coatings for primers, but also solves the problem of recoating UV-curable coatings, reduces the scrapping of unqualified products, Improved production efficiency
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] The following specific examples are given to illustrate the present invention. It should be pointed out that the examples are only used to further illustrate the present invention, and do not represent the protection scope of the present invention. Non-essential modifications and adjustments made by others according to the hints of the present invention still belong to the protection scope of the present invention.
[0021] components
Example 1
Example 2
Example 3
Example 4
The glass transition temperature is between 100°C and
Cellulose resin at 130°C
15.0wt%
20.0wt%
15.0wt%
15.0wt%
Acid value greater than 30mgKOH / g
10.0wt%
10.0wt%
15.0wt%
10.0wt%
Acid value greater than 20mgKOH / g
polyester resin
5.0wt%
5.0wt%
5.0wt%
10.0wt%
The glass transition temperature is between 65°C and 85°C
℃ viny...
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Abstract
The invention discloses a reworking agent for an ultraviolet photo-cured coating. The reworking agent comprises the following components by weight percentage: 5 to 40 percent of cellulose resin with vitrification temperature of between 100 and 130 DEG C, 5 to 30 percent of acrylic resin with acid value of more than 30mgKOH / g, 5 to 20 percent of polyester resin with acid value of more than 20mgKOH / g, 1 to 15 percent of vinyl chloride acetic acid ethylene copolymerization resin with vitrification temperature of between 65 and 85 DEG C, 1 to 15 percent of amino resin, 0.2 to 0.5 percent of leveling agent, and 40 to 60 percent of solvent. The reworking agent for an ultraviolet photo-cured coating solves the problems of reworking of the ultraviolet light solidifying coating of the prime coating and repainting the ultraviolet light solidifying coating, reduces waste of defective products and improves production efficiency. The reworked paint film has the characteristics of good toughness and hardness, wearing resistance, high-temperature and high-moisture resistance, good durability and the like.
Description
technical field [0001] The invention relates to the technical field of chemical coatings, in particular to a material for repairing UV-cured coatings that have been coated. Background technique [0002] The applicant, Guangzhou Qingtian Industrial Co., Ltd., aimed at the urgent needs of the market, began to study the rapid coating production method of large-scale workpieces such as color TVs and air conditioners in 2004, and developed UV-curable coatings and supporting primers for HIPS, ABS and other plastic workpieces. Paint and finishing process. Compared with traditional coatings, UV-curable coatings have great advantages in terms of physical and chemical properties and decoration, especially the production efficiency has been significantly improved. It has been widely used in the rapid coating of large workpieces such as color TVs and air conditioners. However, due to the high crosslinking density of the UV-cured coating film, its recoatability is very poor. In 1997, H...
Claims
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IPC IPC(8): C09D101/00C09D133/00C09D167/00C09D127/06C09D161/20
Inventor 李达信许振阳
Owner GUANGZHOU QINGTIAN INDAL