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A kind of transparent solid leveling agent and its synthesis method and application

A transparent solid and leveling agent technology, applied in powder coatings, coatings, etc., can solve problems such as blanking, achieve low cost, excellent leveling performance, and overcome pollution and difficult cleaning problems

Active Publication Date: 2019-11-12
阜阳市诗雅涤新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Through searching, it is found that there are many patent publications on acrylic synthetic resins in China, but none of the previous patent publications stated that the purpose of synthesis is to synthesize "transparent solid leveling agent" and to use its leveling performance as the main purpose of synthesis. products
Moreover, there is no patent publication that states that the synthetic resin mainly uses the high glass transition temperature and low surface tension of "tert-butyl acrylate". Even if it is not a professional literature, it is difficult to find information about acrylic acid on Baidu, Amazon, and Google The description of the Tg value of tert-butyl ester proves that it is blank in favor of this characteristic

Method used

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  • A kind of transparent solid leveling agent and its synthesis method and application
  • A kind of transparent solid leveling agent and its synthesis method and application
  • A kind of transparent solid leveling agent and its synthesis method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A transparent solid leveling agent, its raw material components and parts by weight are as follows:

[0052]

[0053] When synthesizing transparent solid leveling agent, solvent xylene is used. The solvent is indispensable for the solution polymerization process. It provides liquid phase reaction conditions, but does not participate in the reaction. The dosage is 950L+50L.

[0054] A kind of synthetic method of transparent solid leveling agent as mentioned above, the steps are as follows:

[0055] (1) In the reaction still equipped with agitator, fractionation column (vertical tower), horizontal tower, phase separation tank and nitrogen inlet, pump 950L of xylene solvent (accounting for 95% of the total amount of solvent, remaining 5% with 10% mixing of the initiator for the final addition), fill nitrogen protection from the bottom of the reaction kettle, start the agitator, and slowly heat up, within 30 to 60 minutes, the solvent in the kettle is heated to 120±3°C (...

Embodiment 2

[0062] A transparent solid leveling agent, its raw material components and parts by weight are as follows:

[0063]

[0064] When synthesizing transparent solid leveling agent, solvent xylene is used. The solvent is indispensable for the solution polymerization process. It provides liquid phase reaction conditions, but does not participate in the reaction. The dosage is 950L+50L.

[0065] A kind of synthetic method of transparent solid leveling agent as mentioned above, the steps are as follows:

[0066] ⑴The reaction kettle is pumped in the solvent according to the total mass of raw materials:solvent kg:L ratio of 1:0.8~0.95 under vacuum state, fill the reaction kettle with nitrogen protection, start the agitator, and slowly within 30~60 minutes Raise the temperature to 80-125°C, maintain the temperature and fill the whole process with nitrogen protection;

[0067] (2) Mix 85% to 95% of the total initiator with all the hard monomers, functional monomers and molecular weig...

Embodiment 3

[0073] A transparent solid leveling agent, its raw material components and parts by weight are shown in Table 1:

[0074] Each component and content table of transparent solid leveling agent in table 1 embodiment 3

[0075]

[0076]

[0077] The synthetic method of a transparent solid leveling agent as described above is the same as in Example 2.

[0078] The indexes of a kind of transparent solid leveling agent of the present invention are as follows:

[0079]

[0080] It can be seen from the above indicators that the transparent solid leveling agent of the present invention complies with the enterprise standard Q / SYD2015-01.

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Abstract

The present invention relates to a kind of transparent solid leveling agent, its raw material components and parts by weight are as follows: 4-14 parts of initiator; 50-1200 parts of hard monomer; 0-450 parts of functional monomer; 18 servings. The raw material components of the leveling agent of the present invention do not involve the use of soft monomers. The leveling agent has extremely low surface tension and a suitable glass transition temperature. It is in a transparent solid state at room temperature and is used in powder coatings as a leveling agent. Use, the leveling agent is combined with thermosetting powder coating made of other materials, which has excellent leveling performance, good surface hardness and high gloss, durability and decorative performance; it can be used for indoor or outdoor metal profiles or building materials, It is especially suitable as a special leveling agent for transparent overcoat coatings.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to resin and its synthesis, in particular to a transparent solid leveling agent and its synthesis method and application. Background technique [0002] The high pollution of paint is well known, and the country has banned and restricted its use, and powder coating is one of its main substitutes. As the main raw material of powder coatings, leveling agents have always been homopolymers or copolymers based on butyl acrylate and isooctyl acrylate, and they all exist in a viscous liquid state. In order to facilitate application, the carrier should be used first Adsorption, especially fumed silica or precipitated ultrafine silica, is a highly polluting industry. Whether to develop a leveling agent that has a leveling effect, is solid at room temperature and is easy to transport and use is a difficult problem in the direction of the industry, which has plagued the development of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/14C08F212/08C08F220/28C08F230/08C08F220/32C09D5/03C09D7/47
CPCC08F220/18C09D5/033C08F220/1804C08F220/14C08F212/08C08F220/281C08F230/08C08F220/325
Inventor 王焱王浩陈超王鹏飞彭云冯士海闻欣彭富程田自力王娜娜王倩
Owner 阜阳市诗雅涤新材料科技有限公司
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