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The invention relates to acrylate polymer and preparation method and application thereof

A technology of acrylate and polymer, applied in the direction of coating, pigment slurry, etc., can solve the problems of insufficient dryness of paint, influence of paint film physical properties, etc., and achieve the effect of good outdoor stability, excellent acid resistance, and inhibition of air oxidation

Pending Publication Date: 2019-07-26
NIPPON PAINT CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compatibility and pigment dispersibility of the modified polyester resin are good, but it will affect the gloss of the natural paint when it is added in a large amount in the one-component coating system; , Orientation is of great benefit, but if the dryness of the paint containing modified polyester resin universal color paste is slightly insufficient, it will have a certain impact on the physical properties of the paint film

Method used

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  • The invention relates to acrylate polymer and preparation method and application thereof
  • The invention relates to acrylate polymer and preparation method and application thereof
  • The invention relates to acrylate polymer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The formula of a kind of acrylate polymer is as shown in table 1:

[0049] Table 1

[0050]

[0051] A kind of preparation method of acrylate polymer comprises the following steps:

[0052] In a four-neck flask equipped with a stirrer, condenser, thermometer, and dropping funnel, add the still material 1, and then under nitrogen protection, heat up to 155 ° C and add the pre-mixed dropping material 1 dropwise with the dropping funnel. After five hours of dropwise addition, dropwise addition of drop material 2 for 0.5 hour, keep warm for 1 hour, add diluent to adjust the solid content to 67-69%, and obtain an acrylate polymer. The molecular weight and distribution are: Mn= 3955, Mw= 14306, M W / Mn=3.6, hydroxyl value (theoretical value)=105mgKOH / g. The solid content is 68.61%, the viscosity is Z1, and the acid value is 6.7.

Embodiment 2

[0054] The formula of a kind of acrylate polymer is as shown in table 2:

[0055] Table 2

[0056]

[0057] A kind of preparation method of acrylate polymer comprises the following steps:

[0058] In a four-neck flask equipped with a stirrer, condenser, thermometer, and dropping funnel, add the still material 1, and then under nitrogen protection, heat up to 155 ° C and add the pre-mixed dropping material 1 dropwise with the dropping funnel. After five hours of dropwise addition, dropwise addition of drop material 2 for 0.5 hour, keep warm for 1 hour, add diluent to adjust the solid content to 67-69%, and obtain an acrylate polymer. The molecular weight and distribution are: Mn= 3520, Mw= 13000, M W / Mn=3.7, hydroxyl value (theoretical value)=99mgKOH / g. The solid content is 67.84%, the viscosity is Z2~Z3, and the acid value is 8.3.

Embodiment 3

[0060] The formula of a kind of acrylate polymer is as shown in table 3:

[0061] table 3

[0062]

[0063] A kind of preparation method of acrylate polymer comprises the following steps:

[0064] In a four-neck flask equipped with a stirrer, condenser, thermometer, and dropping funnel, add the still material 1, and then under nitrogen protection, heat up to 155 ° C and add the pre-mixed dropping material 1 dropwise with the dropping funnel. After five hours of dropwise addition, dropwise addition of drop material 2 for 0.5 hour, keep warm for 1 hour, add diluent to adjust the solid content to 67-69%, and obtain an acrylate polymer. The molecular weight and distribution are: Mn= 3056, Mw= 10716, M W / Mn=3.5, hydroxyl value (theoretical value)=96mgKOH / g. The solid content is 67.75%, the viscosity is Z2~Z3, and the acid value is 6.3.

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Abstract

The invention discloses acrylate polymer. The acrylate polymer has a repeating structure unit as shown in the specification, wherein n1=1-8, n2=1-8, n3=1-8, n4=1-8, n5=1-8, R1, R3, R4, R5 and R6 are selected from H and -CH3, R2 is selected from C1-C8 alkyl, and R7+R8=C7H16 and is selected from one of the combination of -CH2CH2CH3 and -CH2CH2CH2CH3, the combination of -CH2CH3 and -CH2CH2CH2CH2CH3and the composition of -CH3 and -CH2CH2CH2CH2CH3. The acrylate polymer is widely applicable to universal color paste and various paint, and a paint film is allowed to be hard, flexible, glossy, full,wear-resistant, good in adhesive force, good in weather resistance and excellent in comprehensive performance.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an acrylate polymer used for a general color paste and a preparation method. Background technique [0002] In the paint industry, the production process of traditional color paint is to add all the pigments in the formula to the grinding paint material composed of grinding resin, wetting and dispersing agent, solvent, etc. according to the formula amount, and then pre-disperse and grind until the fineness After passing the test, some ingredients (such as solvents, additives, resins, etc.) are added according to the needs to prepare the paint. In recent years, more and more paint manufacturers have adopted the so-called monochrome paste method to produce colored paints. This type of process pre-disperses a single pigment in the grinding resin to make a color paste, and then mixes the main film-forming substances, various color pastes, additives and solvents evenly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/28C08F220/06C08F212/08C08F2/06C08F2/44C08K5/1515C09D133/12C09D7/20C09D17/00
CPCC08F2/06C08F2/44C08F220/14C08K5/1515C08L2205/025C08L2205/03C09D17/002C09D17/007C09D133/14C09D7/20C08L67/00C08K3/22C08F220/1804C08F220/281C08F220/06C08F212/08
Inventor 施珠容裴江伟缪青
Owner NIPPON PAINT CHINA
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