Method for producing ultra-high solid content hydroxy acrylic resin

A hydroxyacrylic acid, ultra-high solid content technology, applied in the direction of coating, can solve the problems of large motion resistance, serious intermolecular entanglement, difficult application and so on
CN101173030BActive Publication Date: 2012-01-25中山大桥化工集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
中山大桥化工集团有限公司
Publication Date
2012-01-25

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Abstract

The invention relates to a preparation method of hydroxy acrylic acid resin with super high fixed content, and belongs to the paint manufacturing industry. The invention adopts methacrylate macromolecule monomer with the end provided with polymerizable double keys and ethylene type monomer copolymerized to get graft structure hydroxy acrylic acid resin. The resin has good performance and small viscosity with fixed content reaching more than 80 percent, thereby saving organic solvent, reducing environment pollution and avoiding bringing sulfur alcohol odor. The invention comprises the following steps: (A) methacrylate type macromolecule monomer is added to copolymerization ethylene type monomer of the synthetic resin, and the use quantity is 1 to 20 percent; (B) the copolymerization ethylene type monomer comprises alkyl methacrylate of 10 to 35 percent, hydroxyethyl methacrylate alkyl easter of 10 to 40 percent, unsaturation carboxylic acid of 1 to 10 percent and other ethane type monomer of 0 to 50 percent; (C) solvent is added in the reaction container, and nitrogen is brought to be heated to back flow temperature, and is mixed with the solvent of 3 times through keeping temperature, adding initiator and solvent, and the finished produce can be finally obtained through decolorizing and vacuum distillation.
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Description

【Technical field】:

[0001] The invention adopts macromonomer method to prepare graft type ultra-high solid content hydroxy acrylic resin, which is obtained by adding free radical initiator in the presence of solvent, and belongs to the manufacturing industry of organic macromolecular paint. 【Background technique】:

[0002] In the paint industry, acrylic resin has many excellent properties (weather resistance, good chemical stability, etc.) and is widely used. The market share of traditional solvent-based acrylic resins is gradually decreasing due to competition from water-based, high-solids, powder, light-curing, and environmentally friendly varieties. The high-solid acrylic resins developed on the basis of traditional solvent-based resins have developed rapidly. Compared with traditional solvent-based coatings, high-solid acrylic resin greatly reduces the content of organic volatiles in the coating system and saves curing energy consumption. At the same time, it has light c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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