Polypropylene carbonate paint composition

A polypropylene carbonate and composition technology, applied in the field of polypropylene carbonate coating composition, can solve the problems of inability to achieve low smoke density, inability to develop coating adhesion and durability, etc., and achieve superior economy Feasibility, enhancement of hardness, effect of reducing coating thickness

Active Publication Date: 2013-08-21
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 paint 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 at a level of 5 μm or less when measured by a grind gage. dispersion. 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 ...

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

Provided is a polypropylene carbonate (hereinafter, PPC) paint composition, and more particularly, a pre-coated metal (PCM) paint composition for coil coating, which is mainly applied to cases for home appliances requiring high hardness, such as cases of a refrigerator. The composition can be used to provide a PCM paint, which has very low smoke density at the time of burning and emits remarkably low amounts of combustion gas and poisonous gas due to combustion at the time of firing, as compared with the existing laminate steel plate and a high-gloss film. In addition, the composition exhibits excellent adhesion to metal materials and excellent durability so that it can be usefully used for a PCM print steel plate applied to 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 Applications(China)
IPC IPC(8): C09D169/00C09D133/04C09D7/12
CPCC08G18/44C08K3/34C09D169/00C09D175/06C09D175/04
Inventor 洪承权朴载煐金惠林丁光镇玉明岸
Owner SK INNOVATION CO LTD
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