Cationic electrodeposition paint compositions
一种阳离子电沉积、组合物的技术，应用在电泳涂料、防腐涂料、环氧树脂涂料等方向，能够解决涂膜防腐蚀性降低、涂料稳定性降低等问题，达到涂料稳定性优异、膜厚保持性优异、电沉积涂布适性优异的效果
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
manufacture example 1
[0121] Manufacturing Example 1: Manufacturing Example of Matrix Resin No.1
[0122] Put 185 parts of Denakor EX-821 (Note 1), 950 parts of jER828EL (Note 4), 456 parts of bisphenol A, and tetrabutyl bromide into a 2-liter beaker with a thermometer, a reflux cooler, and a stirrer. 0.8 part of ammonium chloride was reacted at 160° C. until the epoxy equivalent became 800.
[0123] Next, add 359 parts of methyl isobutyl ketone, then add 150 parts of diethanolamine and 127 parts of ketimide of methyl isobutyl ketone (purity 84%, methyl isobutyl ketone solution), reacted at 120° C. for 4 hours to obtain matrix resin No.1 solution of an amino group-containing modified epoxy resin with a solid content of 80%. The amine value of matrix resin No. 1 was 69 mgKOH / g, and the number average molecular weight was 2400.
manufacture example 2
[0124] Manufacturing example 2: Manufacturing example of matrix resin No. 2
[0125] Put 471 parts of denacol EX-931 (note 2), 950 parts of jER828EL (note 4), 456 parts of bisphenol A and tetrabutyl 0.8 part of ammonium bromide was reacted at 160° C. until the epoxy equivalent became 950.
[0126] Next, add 430 parts of methyl isobutyl ketone, then add 150 parts of diethanolamine and 127 parts of ketimides of methyl isobutyl ketone (purity 84%, methyl isobutyl ketone solution), reacted at 120° C. for 4 hours to obtain matrix resin No.2 solution of modified epoxy resin containing amino groups with a resin solid content of 80%. The amine value of matrix resin No. 2 was 60 mgKOH / g, and the number average molecular weight was 2500.
manufacture example 3
[0127] Manufacturing Example 3: Manufacturing Example of Matrix Resin No.3
[0128] Put 340 parts of Grisier BPP-350 (note 3), 950 parts of jER828EL (note 4), 456 parts of bisphenol A and tetrabutyl bromide into a 2-liter beaker with a thermometer, a reflux cooler, and a stirrer 0.8 part of ammonium chloride was reacted at 160° C. until the epoxy equivalent reached 900.
[0129] Next, add 400 parts of methyl isobutyl ketone, then add 150 parts of diethanolamine and 127 parts of ketimides of methyl isobutyl ketone (purity 84%, methyl isobutyl ketone solution), reacted at 120° C. for 4 hours to obtain a matrix resin No.3 solution of an amino group-containing modified epoxy resin with a solid content of 80%. Base resin No. 3 had an amine value of 64 mgKOH / g and a number average molecular weight of 2,500.
[0130] Table 1 shows the compounding contents and parameters of matrix resins No. 1 to No. 3 in Production Examples 1 to 3.
[0131]
[0132] (Note 1) Denakor EX-821: Nag...
PUM
| Property | Measurement | Unit |
|---|---|---|
| viscosity | aaaaa | aaaaa |
| viscosity | aaaaa | aaaaa |
| viscosity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More