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Transparent resin controlling auto repair color difference

A color difference and transparent resin technology, applied in the direction of coating, etc., can solve the problems of uneven arrangement of colored paint particles, inconsistency of color through the bottom, and high requirements for construction technology, so as to achieve good finish of paint film, good repair appearance and sandability, Colors come to perfection

Active Publication Date: 2015-05-20
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned transparent resins and solvents for car body and bumper repairs or joints on the market are often composed of resins and several solvents with different solubility, polarity, and volatility. High, and the drying speed is too fast, it is easy to have poor adhesion of the coating film after repairing, uneven arrangement of color paint particles, penetration, black circles, color incompatibility and other interface defects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The preparation method of the balance control agent is as follows: Weigh the raw materials of each component according to the above weight ratio, add them into the blending reactor in turn, stir for 30 minutes until uniform, and then pass the test.

[0026] The mouthpiece solvent is composed of the following components in parts by weight: aromatic hydrocarbon solvent 25-35, ester solvent 42-52, alcohol solvent 11-17, leveling aid 0.7-1.5, one-component acrylic resin 5-11. Among the components that make up the mouth solvent, the aromatic hydrocarbon solvent is one or more of xylene, 100# solvent oil, and 120# solvent oil; the ester solvent is butyl acetate, propylene glycol methyl ether acetate, ethylene glycol A mixture of ether acetate and dibasic acid ester; the alcohol solvent is one or a mixture of propanol and n-butanol.

[0027] The preparation method of the spout solvent is as follows: weigh the raw materials of each component according to the above weight ratio,...

Embodiment 1

[0032] For example of repairing white pearls, weigh 18g of acrylic resin, 3g of amino resin, 9g of xylene, 11g of butyl acetate, 57g of cellulose acetate butyrate (CAB), 0.7g of UV additives, 0.8g of leveling additives, and add in order Reactor, put on a high-speed disperser and keep stirring at a high speed for 30 minutes until it is uniform, and then the required balanced color control agent is obtained. Weigh xylene 15g, 100# solvent 11g, 120# solvent 4g, butyl acetate 25g, n-butanol 14g, propylene glycol methyl ether acetate 14g, ethylene glycol ethyl ether acetate 6g, dibasic acid ester 2g, leveling aid Add 1.1g of agent and 9g of one-component acrylic resin, put it on a high-speed disperser and keep stirring at a medium speed for 10 minutes until it is uniform, and then the required mouthpiece solvent is obtained. Weigh 42g of xylene, 28g of butyl acetate, and 33g of propylene glycol methyl ether acetate in sequence, and keep stirring at a medium speed for 5 minutes on a...

Embodiment 2

[0035] For the example of repairing light yellow silver, weigh 15g of acrylic resin, 4g of amino resin, 10g of xylene, 10g of butyl acetate, 54g of cellulose acetate butyrate (CAB), 0.8g of UV additive, and 0.7g of leveling additive into the letdown In the tank, use a high-speed disperser to keep stirring at a high speed for 30 minutes until it is uniform, and then the desired balanced color control agent is obtained. Weigh in turn 13g of xylene, 12g of 100# solvent, 5g of 120# solvent, 28g of butyl acetate, 12g of n-butanol, 12g of propylene glycol methyl ether acetate, 7g of ethylene glycol ether acetate, 3g of dibasic acid ester, leveling aid Add 1.0g of agent and 7g of one-component acrylic resin into the paint mixing tank, and keep stirring at a medium speed on a high-speed disperser for 10 minutes until it is uniform, and the required mottled solvent is obtained. Sequentially weigh 40g of xylene, 29g of butyl acetate, and 35g of propylene glycol methyl ether acetate, add...

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PUM

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Abstract

The invention relates to transparent resin controlling auto repair color difference. The transparent resin controlling auto repair color difference is composed of the following components in parts by weight: 70-90 parts of balance control agent, 8-15 parts of roll line solvent and 20-30 parts of diluents. After the local defect part of the auto coating is processed on conventional treatment, the components are mixed and stirred evenly, the mixture is sprayed for two times in wet state, the film thickness is 20-30 microns around, the colored paint is sprayed according to the conventional coating technique method while the bottom varnish layer is not dry, and the varnish is sprayed. Compared with the prior art, the arrangement of the silver powder particles of the colored paint of the technology is regular, the adhesive force is good, the new and old paint films can be tightly combined without dark circle, the degree of finish is good and the color is perfect.

Description

technical field [0001] The present invention relates to a kind of transparent resin, especially relates to a kind of transparent resin that controls the color difference of automobile refinishing. Background technique [0002] At present, what generally adopts for the processing of automobile paint film defect is the method of partial repair or whole vehicle repainting. The partial repair of automobiles is mainly aimed at the spout liquid on the sprayed surface of small areas. The paint layer in the repaired area treated with the existing spout liquid is prone to interface marks, and sometimes there will be lace, black circles, and the color of the old and new paint films will not blend. The phenomenon of the overall appearance of the vehicle is poor, making it difficult to meet customer requirements. However, the overall repainting method not only wastes a lot of manpower and paint materials, has a long operating process time, and keeps high costs, but also cannot guarante...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/14C09D133/00C09D7/00
CPCC08L2201/10C08L2205/035C09D7/20C09D101/14C08L33/00C08L61/20C08L83/04
Inventor 朱忠敏李白喻业茂
Owner DONGLAI COATING TECH SHANGHAI
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