Modified acrylic resin-based normal temperature quick-drying automobile paint with high fullness and high solid

A technology of acrylic resin and acrylic ester, which is applied in the direction of coating, etc., can solve the problems of poor weather resistance, inability to use, easy yellowing of vinyl toluene, etc., and achieve good fullness, high solid content, and high fullness. Effect

Active Publication Date: 2012-10-03
NANJING CHANGJIANG PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chinese patent 200510123053.3A discloses the modification of alkyd resin with vinyl toluene alone, but because a large amount of vinyl toluene is easy to yellow and has poor weather resistance, it cannot be used outdoors, which greatly limits the application

Method used

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  • Modified acrylic resin-based normal temperature quick-drying automobile paint with high fullness and high solid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Put 6% soyoleic acid, 2% tall oil acid, 5% phthalic anhydride, and 5% pentaerythritol into a stainless steel reactor, start stirring, heat up to 160°C, keep warm for 1 hour, then heat up to 200°C for 4 Hours later, take a sample to measure the acid value. When the acid value reaches 8-12mgKOH / g, cool down to 120°C, add xylene, stir evenly, and start adding dropwise at 120±5°C, 40% butyl methacrylate, 20% Hydroxypropyl acrylate, 1% methacrylic acid, 20% styrene, 1% benzoyl peroxide, take a sample to measure the viscosity after 4 hours, and wait for the viscosity to pass 50-200 seconds (50% solid content in xylene, apply -4 cups / 25°C), filter pack. See Table 1 for specific parameters.

Embodiment 2

[0023] Embodiment 2: drop into 5% linolenic acid, 1% soybean oil acid, 2% ricinoleic acid, 5% phthalic anhydride, 6% trimethylol propane in the stainless steel reactor, operation technique and control index are the same as embodiment 1, reach After the requirement, start to drop 40% butyl acrylate, 19% hydroxypropyl acrylate, 1% methacrylic acid, 20% styrene, 1% benzoyl peroxide, and the operation process and control index are the same as in Example 1. See Table 1 for specific parameters.

Embodiment 3

[0024] Embodiment 3: drop into 7% tall oil acid, 3% dehydrated ricinoleic acid, 5% isophthalic acid, 5% pentaerythritol in the stainless steel reactor, operation technique and control index are the same as embodiment 1, after meeting the requirements, start Add dropwise 40% butyl methacrylate, 20% hydroxypropyl acrylate, 1% methacrylic acid, 18% styrene, and 1% benzoyl peroxide. The operating process and control indicators are the same as in Example 1. See Table 1 for specific parameters.

[0025] Table 1 Modified acrylic resin index of the present invention

[0026] serial number

project

Example 1

Example 2

Example 3

1

clarity and transparency

clear, transparent

clear, transparent

clear, transparent

2

Color (Fe-Co method), No.

5

9

5

3

Viscosity (Tu-4 / 25℃), s

70

98

76

4

Acid value, mgKOH / g

10.7

11.1

10.5

5

Non-volatile mat...

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PUM

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Abstract

The invention discloses a modified acrylic resin-based normal temperature quick-drying automobile paint with high fullness and high solid. The modified acrylic resin is formed by esterification and copolymerization of 5 to 10 percent of unsaturated fatty acid, 2 to 6 percent of polyalcohol, 3 to 7 percent of diacid or diacid anhydride, 10 to 50 percent of styrene, 40 to 80 percent of acrylic ester monomer and 0.8 to 3 percent of initiator in percentage by mass. The normal temperature quick-drying automobile paint has the characteristics of thermoplastic acrylic resin paint such as quick drying and good weather resistance, has good fullness and easy construction, is suitable for coating automobiles with high decorative performance, and also can be used for coating household appliances, machinery and the like. Because of high solid and low VOC emission, the automobile paint meets nowadays environment-friendly requirements.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a modified acrylic resin, a preparation method of the modified acrylic resin and a high-fullness, high-solid normal-temperature quick-drying automotive paint based on the modified acrylic resin. Background technique [0002] Acrylic resin paint has good gloss and color retention properties, can maintain the original gloss and color of the paint film for a long time, and has good light resistance and weather resistance; it has strong outdoor exposure durability and is resistant to ultraviolet light and is not easy to decompose or turn yellow; the color of acrylic resin varnish is very good. Shallow, and has excellent transparency; corrosion resistance, has good staining and corrosion resistance of acids, alkalis, salts, greases, detergents and other chemicals. At the same time, the domestic technology is becoming more and more mature, the raw material (acrylic acid monomer) and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/01C08G63/49C09D151/08C09D7/12
Inventor 刘保磊张卫中
Owner NANJING CHANGJIANG PAINT
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