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Imino-containing acrylic resin, its preparation method and application

A technology of imino acrylic and resin, applied in the direction of coating, etc., can solve the problems of losing practical value, achieve excellent performance and solve contradictions

Inactive Publication Date: 2012-08-08
汤汉良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Make the system basically lose its practical value

Method used

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  • Imino-containing acrylic resin, its preparation method and application
  • Imino-containing acrylic resin, its preparation method and application
  • Imino-containing acrylic resin, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Example 1 - Product Example

[0096] 1, a kind of preparation method containing imino acrylic resin, it is characterized in that having the following steps:

[0097] A. Under the protection of nitrogen, add 1,4-butanediol, 1,2-pentanediol and tert-butylamine to the reaction vessel at one time, and the added 1,4-butanediol and 1,2-pentanediol The molar ratio of the total amount of alcohol to tert-butylamine is 8:1; add dibutyltin dilaurate and zinc naphthenate as catalysts, the amount added is 0.2% of the total mass of the reactants, then seal the reaction vessel, heat up to 140°C, and stir After reacting for 3 hours, N,N'-tert-butyl hydroxybutylimine was synthesized;

[0098] B. Add ethyl methacrylate, tert-propyl methacrylate, butyl methacrylate and the synthesized N,N'-tert-butyl hydroxybutyl imine in a molar ratio of 5:1 to the condenser In the reaction vessel of the device, add 7-diaminophenothiazine of 0.3% polymerization inhibitor and 0.3% alkaline earth metal d...

Embodiment 2

[0100] Example 2 - Use of the product (application example)

[0101] Get the imino-containing acrylic resin prepared in Example 1, the proportioning of paint is:

[0102] Imino Acrylic Resin Solution 4

[0103] HDI trimer solution (NVM 45 %) 1

[0104] Thinner 1~1.5

[0105] The resin solution and the curing agent are mixed evenly and then diluted to 13-14:1 with diluent xylene. After the preparation is complete, it should be left for at least 15 minutes.

[0106] The test methods commonly used in the coating field in the above example 2 are used to obtain similar results as shown in Table 2 for the related properties of the automotive repair coating.

[0107] project Test Results testing method VOC / wt% ≤20 GB / T23985-2009 Solid content / wt% 40 GB / T1725-2007 Storage period / month ≥6 Centrifuge at 3000rpm for 30min without precipitation Gloss (60°) ≥95 GB / T1743-89 pencil hardness ≥2H GB / T1730-93 Adhesion (cross-cut met...

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PUM

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Abstract

The invention relates to an imino-containing acrylic resin, its preparation method and an application, specifically to an imino-containing acrylic resin, its preparation method and an application in automobile refinishing coatings. The invention discloses the imino-containing acrylic resin, methods for preparing an imino-containing acrylate monomer and a resin, and a method for preparing an automobile refinishing solid color paint by the utilization of the above resin dispersion. By the adoption of the steric hinderance effect, activity of hydrogen on imidogen nitrogen atoms is properly reduced, the contradiction between curing speed and period of use is successfully solved, and a super fast-drying system with excellent performance is established.

Description

technical field [0001] The invention relates to an automobile coating, in particular to an imino-containing acrylic resin and a preparation method thereof, and is used in automobile repair coatings. Background technique [0002] The automobile industry and the real estate industry have always been recognized as two important pillar industries of the national economy. Since the reform and opening up, the automobile industry has developed rapidly. The total output of automobiles in my country has increased from 1.7 million in 1999 to more than 13.82 million in 2009, and the output of cars has increased rapidly from 570,000 to 7.5 million. Its astonishing growth rate greatly exceeds that of developed countries in the West and South Korea and other developing countries that depend on the take-off of the auto industry. [0003] The rapid development of the automobile industry has provided a broad development space for automobile coatings. In recent years, many large and medium-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/34C08F212/08C08F220/18C08F220/14C09D133/14
Inventor 汤汉良林安汪盛藻李晔叶慧明朱德勇郭伟杰
Owner 汤汉良
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