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High-solid chrome-free acrylic polyurethane finish paint

An acrylic polyurethane, high-solid technology, applied in the field of coatings, can solve problems such as inability to meet requirements, and achieve the effects of low volatile organic compounds, high decorative properties, and high initiation efficiency

Inactive Publication Date: 2014-02-05
TIANHENG PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in anti-corrosion equipment, metal surfaces, large bridges, heavy-duty anti-corrosion projects and other fields that require high comprehensive performance of acrylic polyurethane such as weather resistance, fullness, salt spray resistance, adhesion, fullness, and chemical resistance (such as Artificial aging 1000h loss of light rate < 2 grades, salt spray resistance of more than 600 hours, a dry film thickness of 60 microns), ordinary acrylic polyurethane topcoat can not meet the requirements

Method used

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  • High-solid chrome-free acrylic polyurethane finish paint
  • High-solid chrome-free acrylic polyurethane finish paint
  • High-solid chrome-free acrylic polyurethane finish paint

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Embodiment Construction

[0028] A high solids chrome-free acrylic polyurethane topcoat made by mixing components A and B in a ratio of 100:25.

[0029] Among them, the first component is composed of the following components:

[0030] Self-made tertiary carbonic acid glycidyl ester modified high solid

[0031]

[0032]

[0033] Component B is calculated in parts by weight: 50Kg of aliphatic diisocyanate and 30Kg of butyl acetate.

[0034] The self-made tertiary carbonic acid glycidyl ester modified high-solid hydroxyl acrylic resin (mass solid 75%) consists of the following components:

[0035]

[0036] The preparation method of the above-mentioned self-made tertiary carbonic acid glycidyl ester modified high-solid hydroxyl acrylic resin (mass solid 75%) is carried out according to the following steps,

[0037] ⑴ Add methyl methacrylate, butyl methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, butyl acrylate, and acrylic acid to the dripping tank according to the formula amount, st...

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Abstract

The invention relates to a high-solid chrome-free acrylic polyurethane finish paint consisting of two components A and B which are mixed together according to a ratio of 100:25. The component A comprises the following components in parts by weight: 50-65 parts of self-made tert-carbonic glycidyl ester modified hydroxylated acrylic resin (with 75 mass percent of solids), 10-20 parts of a color filler, 10-20 parts of a chrome-free anticorrosive pigment, 0.5-1.5 parts of an anti-setting agent BE-828, 0.5-1.5 parts of a dispersant, 0.3-1.0 part of a defoaming agent, 0.5-2.5 parts of an anti-sagging agent, 0.3-0.5 part of a leveling agent and 5-10 parts of a solvent. The component B comprises the following components in parts by weight: 50-70 parts of fat diisocyanate and 30-50 parts of butyl acetate. The high-solid chrome-free acrylic polyurethane finish paint disclosed by the invention has relatively high requirements for overall properties including weather resistance, fullness, salt fog resistance, adhesive force, chemical resistance and the like.

Description

Technical field: [0001] The invention belongs to coatings, in particular to a high-solid chromium-free acrylic polyurethane topcoat. Background technique [0002] Ordinary acrylic polyurethane topcoats can meet the requirements of general industrial decoration and anticorrosion, that is, good physical and chemical properties, and salt spray resistance up to 200-500 hours. However, in anti-corrosion equipment, metal surfaces, large bridges, heavy-duty anti-corrosion projects and other fields that require high comprehensive performance of acrylic polyurethane such as weather resistance, fullness, salt spray resistance, adhesion, fullness, and chemical resistance (such as Artificial aging 1000h loss of light rate < 2 grades, salt spray resistance of more than 600 hours, a dry film thickness of 60 microns), ordinary acrylic polyurethane topcoat can not meet the requirements. Contents of the invention [0003] The present invention aims to overcome the deficiencies in the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12C08F220/14C08F220/18C08F220/28C08F220/06C08F8/00
Inventor 刘道海
Owner TIANHENG PAINT CO LTD
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