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Polypropylene Carbonate Coating Composition

A technology of polypropylene carbonate and polypropylene carbonate resin, which is applied in the field of coating compositions for pre-coating metal printing steel plates, and can solve the problem that it cannot be developed to ensure the adhesion and durability of coatings, and the low smoke density cannot be achieved. and other problems, to achieve the effect of superior economic feasibility, enhanced hardness, and enhanced adhesion

Active Publication Date: 2016-08-03
SK INNOVATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing resins cannot achieve low smoke density in the event of fire and cannot develop measures to ensure the adhesion and durability of the paint

Method used

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  • Polypropylene Carbonate Coating Composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 100g (25.71wt%) of PPC (GreenPol product, SK Energy Co., Ltd.) containing a hydroxyl group at one end of its molecular chain was placed in a metal can, and its weight-average molecular weight was 100,000g / mol and its glass transition temperature was 35°C, and 200g of solvent was further added After stirring well, PMA and MEK were mixed in the solvent at a volume ratio of 1:1.

[0045] 0.3 g (0.08 wt%) of Organo-Clay (Bentone) was slowly placed in the stirred solution while stirring. Next, after placing glass beads with a diameter of 2 to 3 mm therein, sufficient dispersion was performed for 2 hours using a vibrating type disperser so as to be dispersed at a level of 5 μm or less when measured by a grindgage . In addition, 68g (17.48wt%) of PPC resin, 10.0g (2.57wt%) of butylated melamine formaldehyde, and 9.5g (2.44wt%) of PMA and MEK mixed in a 1:1 solvent were added to the solution, and then Stir well.

[0046] For dispersion stability, 0.05 g of BYK-143 and 0.1 g ...

Embodiment 2

[0051] The same procedure as Example 1 was followed, except that 3 g of HDI trimer was added instead of melamine, and 0.1 g of dibutyltin dilaurate (DBTDL) was added instead of p-toluenesulfonic acid.

Embodiment 3

[0053] The same procedure as Example 1 was carried out, except that PPC with a molecular weight of 50,000 g / mol was used.

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Abstract

The present invention provides poly(propylene carbonate) (hereinafter referred to as PPC) coating compositions, more specifically, precoated metal (PCM) coating compositions for coil coating, which are mainly suitable for applications requiring high hardness. Household appliances such as refrigerators. The composition can be used to provide PCM coatings. Compared with existing laminated steel sheets and high-brightness films, the smoke density when burning is very low due to burning in a fire, and the emitted combustion gas and toxic gas Volume is very low. In addition, the composition also exhibits excellent adhesion to metal materials and excellent durability, so that it can be used for PCM printed steel sheets suitable for home appliances.

Description

technical field [0001] The following disclosure relates to poly(propylene carbonate) (hereinafter referred to as PPC) coating compositions. In particular, the following disclosure relates to coating compositions mainly for precoated metal (hereinafter referred to as PCM) printed steel sheets for household appliances requiring high hardness such as refrigerators. The following disclosure provides a PPC coating composition suitable for PCM printed steel sheets used in home appliances, etc., by using a cross-linked PPC resin, which enables very little fire generation in comparison with laminated steel sheets and high-brightness films. Combustion gas and enhance the adhesion to the material and its durability. Background technique [0002] A steel sheet for home appliances in the related art is manufactured by post-processing the PCM steel sheet or powder-coating the PCM steel sheet after processing the PCM steel sheet. However, due to the trend toward high-end home appliances...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D169/00C09D133/04C09D7/12
CPCC08K3/34C09D169/00C09D175/06C08G18/44C09D175/04
Inventor 洪承权朴载煐金惠林丁光镇玉明岸
Owner SK INNOVATION CO LTD