Automobile finishing varnish containing water dispersible acrylic ester and preparation method thereof

A technology of acrylate and varnish coatings, which is applied in the field of automotive varnish coatings and its preparation, and can solve problems such as lack of decorative performance for automotive exterior coatings

Active Publication Date: 2007-12-05
GUANGDONG YATU CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coatings prepared by these patented technologies do not have the special decorative properties required for automotive exterior coatings.

Method used

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  • Automobile finishing varnish containing water dispersible acrylic ester and preparation method thereof
  • Automobile finishing varnish containing water dispersible acrylic ester and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The feeding formula of synthetic acrylic resin is shown in Table 4.

[0040] The feeding formula of table 4 embodiment 1 synthetic acrylic resin

[0041]

project

Formula number and dosage / mass fraction

1

2

3

4

solvent

Propylene Glycol Monomethyl Ether (PGME)

Isopropyl Alcohol (IPA)

Monomer

Methyl methacrylate (MMA)

Styrene (S)

Butyl Acrylate (BA)

Isobornyl Methacrylate (IBOMA)

Hydroxyethyl Methacrylate (HEMA)

Acrylic (AA)

Initiator

Azobisisobutyronitrile (AIBN)

Molecular weight regulator

dodecanethiol

Additional initiator solution

AIBN

PGME

25

15

30

20

35

0

10

5

1

0.8

0.4

10

25

15

26

16

35

8

10

5

1

0.8

0.4

10

...

Embodiment 2

[0053] The feeding formula of synthetic acrylic resin is shown in Table 7.

[0054] The feeding formula of table 7 embodiment 2 synthetic acrylic resin

[0055]

project

Formula number and dosage / mass fraction

5

6

7

8

solvent

Propylene Glycol Monomethyl Ether (PGME)

Isopropyl Alcohol (IPA)

Monomer

Methyl methacrylate (MMA)

Styrene (S)

Isooctyl Acrylate (2-EHA)

Benzyl methacrylate (BNMA)

Hydroxyethyl Methacrylate (HEMA)

Acrylic (AA)

Initiator

Azobisisobutyronitrile (AIBN)

Molecular weight regulator

dodecanethiol

Additional initiator solution

AIBN

PGME

25

15

26.5

14.5

35

8

10

6

1

1

0.4

10

25

15

22

12

40

10

10

6

1

1

0.4

10

25

15 ...

Embodiment 3

[0067] The feeding formula of synthetic acrylic resin is shown in Table 10.

[0068] The feeding formula of table 10 embodiment 3 synthetic acrylic resins

[0069]

project

Formula number and dosage / mass fraction

9

10

11

solvent

Propylene Glycol Monomethyl Ether (PGME)

Glycidyl tert-carbonate (E10P)

Monomer

Methyl methacrylate (MMA)

Styrene (S)

Butyl Acrylate (BA)

Hydroxyethyl Acrylate (HEA)

Acrylic (AA)

Initiator

Di-t-amyl peroxide

Add initiator and monomer for the first time

Acrylic (AA)

Di-t-amyl peroxide

Second addition of initiator solution

Di-t-amyl peroxide

Propylene Glycol Monomethyl Ether (PGME)

10

30

23.5

20

9

4

9

2.4

4.5

0.1

0.5

10

30

15

23.5

20

18.5

14

4.5

...

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PUM

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Abstract

The present invention discloses water dispersed automobile finishing varnish of polyacrylate and its preparation process. The water dispersed automobile finishing varnish is mixture of water dispersed polyacrylate, water dispersed curing agent amino resin and closed polyisocyanate. The polyacrylate is water dispersoid prepared with the mixture of five components, and through the first radical initiator initiated polymerization in mixed solvent to obtain polyacrylate resin and the subsequent neutralization with neutralizer. The water dispersed automobile finishing varnish after being sprayed and cured forms varnish film possessing high glossiness, high brightness, high hardness, high impact resistance, high weather resistance, high compactness and fast adhesion to the base material.

Description

technical field [0001] The invention relates to a water-dispersed acrylate resin-containing automotive finish paint and a preparation method thereof. Background technique [0002] At present, my country's automotive coatings are still mainly solvent-based, and a large amount of volatile organic compounds (VOC) cause serious pollution to the environment during the coating process. Countries around the world have successively formulated relevant regulations to limit the emission of VOC in paint. In order to meet the requirements of environmental protection, automotive coatings are developing in the direction of water-based, high-solids and powder coatings, among which water-based technology is the most beneficial to environmental protection and has attracted much attention. Water-based automotive coatings mainly use water as the dispersion medium and contain a small amount of volatile co-solvents, so the VOC emissions are greatly reduced and meet the requirements of environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08B05D7/14
Inventor 王炼石包春磊张安强冯兆均冯兆华阮伟明
Owner GUANGDONG YATU CHEM
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