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Precoated coil coatings for bonding aluminized polyester films, methods of preparation and uses

A technology of aluminized polyester and coil coatings, applied in the direction of polyurea/polyurethane coatings, anti-corrosion coatings, coatings, etc., can solve the problems of harmfulness to the human body and the environment, non-compliance with environmental protection requirements, high energy consumption, etc., to ensure flexibility Effect

Active Publication Date: 2019-08-02
NIPPON PAINT IND COATINGS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the pre-coated coil needs to be coated with a layer of primer and a layer of glue, and baked twice, it has high energy consumption, relatively cumbersome process, and the presence of benzene solvents in the glue, which is harmful to human body and environment, and does not meet environmental protection Disadvantages of request

Method used

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  • Precoated coil coatings for bonding aluminized polyester films, methods of preparation and uses
  • Precoated coil coatings for bonding aluminized polyester films, methods of preparation and uses
  • Precoated coil coatings for bonding aluminized polyester films, methods of preparation and uses

Examples

Experimental program
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Effect test

Embodiment 1

[0054] In the present embodiment, the precoated coil coating for bonding aluminized polyester film includes the following components in parts by weight: 27 parts of the first polyester resin, 27 parts of the second polyester resin, rutile titanium dioxide 10 parts of R-996, 8.8 parts of blocked isocyanate DESMODUR BL 3175SN, 0.5 parts of dispersant BYK170, 0.3 parts of defoamer BYK354, 0.1 part of silane coupling agent KBM-403, 0.7 parts of organic tin catalyst (dibutyltin dilaurate) , 15 parts of cyclohexanone, 15 parts of durene solvent oil (S-150# solvent oil), 2 parts of isobutanol.

[0055] In the present embodiment, the method for preparing the precoated coil coating for bonding aluminized polyester film comprises the following steps:

[0056]27 parts of the first polyester resin, 27 parts of the second polyester resin, 10 parts of rutile titanium dioxide R-996, 0.5 parts of dispersant BYK1700, 8 parts of cyclohexanone, 7 parts of durene solvent naphtha, isobutyl 1 part...

Embodiment 2

[0060] In this embodiment, the precoated coil coating for bonding aluminized polyester film includes the following components in parts by weight: 25 parts of the first polyester resin, 30 parts of the second polyester resin, rutile titanium dioxide 10 parts of R-996, 8.8 parts of blocked isocyanate DESMODUR BL 3175SN, 0.5 parts of dispersant BYK170, 0.3 parts of defoamer BYK354, 0.1 part of silane coupling agent KBM-403, 0.7 parts of organic tin catalyst (dibutyltin dilaurate) , 15 parts of cyclohexanone, 15 parts of durene solvent oil (S-150# solvent oil), 2 parts of isobutanol.

[0061] In the present embodiment, the method for preparing the precoated coil coating for bonding aluminized polyester film comprises the following steps:

[0062] 25 parts of the first polyester resin, 30 parts of the second polyester resin, 10 parts of rutile titanium dioxide R-996, 0.5 parts of dispersant BYK1700, 8 parts of cyclohexanone, 7 parts of durene solvent naphtha, isobutyl 1 part of al...

Embodiment 3

[0066] In the present embodiment, the precoated coil coating for bonding aluminized polyester film includes the following components by weight: 20 parts of the first polyester resin, 28 parts of the second polyester resin, 20 parts of barium sulfate 10 parts of blocked isocyanate DESMODUR BL 3175SN, 0.5 parts of dispersant BYK170, 0.5 parts of defoamer BYK354, 0.2 parts of silane coupling agent KBM-403, 1 part of organotin catalyst (dibutyltin dilaurate), 8 parts of cyclohexanone , 8 parts of durene solvent naphtha, 2 parts of isobutanol.

[0067] In the present embodiment, the method for preparing the precoated coil coating for bonding aluminized polyester film comprises the following steps:

[0068] Mix 20 parts of the first polyester resin, 28 parts of the second polyester resin, 20 parts of barium sulfate, 0.5 parts of dispersant BYK170, 4 parts of cyclohexanone, 4 parts of durene solvent oil, and 1 part of isobutanol, and grind , the grinding temperature shall not exceed...

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Abstract

The invention discloses a pre-coating coil coating for bonding an aluminum plated polyester film. The pre-coating coil coating is prepared from, by weight, 20-30 parts of first polyester resin, 20-30 parts of second polyester resin, 10-20 parts of pigment filler, 5-10 parts of blocked diisocyanate, 0.1-1 part of a dispersing agent, 0.3-1 part of a defoaming agent, 0.1-0.2 part of a silane coupling agent, 0.1-1 part of an organic tin catalyst and 17-32 parts of solvent. The invention further discloses a preparation method and application of the pre-coating coil coating for bonding the aluminum plated polyester film. The pre-coating coil coating for bonding the aluminum plated polyester film has the advantages of being good in adhesive force, good in water resistance and good in cup drawing performance.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, and in particular relates to a precoated coil paint for bonding aluminized polyester film, a preparation method and an application. Background technique [0002] With the progress of society and the improvement of people's living standards, people's requirements for building materials and household appliances are getting higher and higher, and the application of pre-coated panels that can be pressed into different patterns and colors and special effects is also becoming more and more extensive. Pre-coated sheet is an organic material / metal composite sheet that is sold in rolls or sheets after being coated with paint on a rolled metal sheet, also known as organic-coated steel sheet, pre-coated steel sheet, color-coated steel sheet, etc. . This kind of steel plate can be directly processed and formed without painting process. The coating used on its surface is called pre-coated coil coat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/06C09D7/00C09D5/08C09D7/61C09D7/63C09D7/65C09D7/20
CPCC09D5/08C09D7/20C09D7/61C09D7/63C09D7/65C09D175/06
Inventor 杨勤和王华益
Owner NIPPON PAINT IND COATINGS SHANGHAI
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