A kind of anticorrosion coating primer and topcoat composition

A technology of anti-corrosion coatings and compositions, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of insufficient chemical resistance and affecting curing speed, etc., achieve excellent construction performance, prevent internal stress corrosion, penetration The effect of wetting solution
CN104098994BActive Publication Date: 2016-12-28江苏国松特种涂料有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
江苏国松特种涂料有限公司
Publication Date
2016-12-28

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Abstract

The invention relates to a primer composition for anti-corrosion coatings, which comprises two components A and B, wherein the A component comprises by weight: 15-30 parts of hydroxyl acrylic resin; 2-10 parts of polyaspartic acid resin; Pigment: 10-50 parts of anti-rust pigment, 0.5-3 parts of coloring pigment, 5.5-23 parts of titanium dioxide; additives: 0.1-2 parts of dispersant, 1-10 parts of washing machine water, 0.1-2 parts of anti-settling agent, Leveling agent 0.1~1 part; solvent 1~10 parts; filler 10~30 parts; B component is aliphatic polyisocyanate 5~30 parts. The product of the present invention has a three-dimensional network structure. After the introduction of urea group, it has super acid, alkali and salt chemical resistance; the precise proportion control of each component in the formula makes the product have excellent UV resistance and outdoor performance, which solves the problem of Due to the difficult construction characteristics of urea-based coatings, no special equipment is required, conventional construction has excellent construction performance.
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Description

technical field

[0001] The invention relates to a coating composition, in particular to a primer and topcoat composition for anti-corrosion coatings. Background technique

[0002] Before and after World War II, with the emergence of a series of high polymers such as epoxy resin, chlorinated rubber resin, alkyd resin, and phenolic resin, the types and properties of heavy-duty anti-corrosion coatings have undergone qualitative changes. The corresponding anti-corrosion theory and Construction technology has also been fully developed.

[0003] In the past 30 years, along with the process of my country's reform and opening up, my country's heavy-duty anti-corrosion coatings have also achieved full development. It seems stretched, so it is still important to develop a coating with strong applicability, high weather resistance and chemical resistance!

[0004] At present, the main types of heavy-duty anti-corrosion coatings are as follows:

[0005] Chlorinated polymers are mainly...

Claims

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