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Powder coating material and fluorine-containing laminate

A technology of powder coatings and laminates, applied in the direction of powder coatings, coatings, polyamide coatings, etc., to achieve the effect of improving the adhesion of substrates, increasing the contact area, and preventing oxidation and deterioration

Active Publication Date: 2011-01-19
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, further heat-resistant adhesion is required

Method used

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  • Powder coating material and fluorine-containing laminate
  • Powder coating material and fluorine-containing laminate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Polyamide-imide resin (trade name: Tolone 4000T-40, manufactured by Solbeard Bansto Polymers Co., Ltd.) [PAI] was pulverized using a pulverizer (trade name: Atomayzer, manufactured by Dalton Corporation) to obtain an average A pulverized product of PAI particles with a particle size of 36 μm. 70 g of the obtained PAI particle pulverized product, 400 g of tetrafluoroethylene / perfluoro(alkyl vinyl) ether copolymer [PFA] (melting point: 310° C., average particle diameter: 25 μm), 30 g of polyphenylene sulfide resin [PPS ] (trade name: Laiton V-1, manufactured by Phillips Corporation, average particle size: 17 μm) was uniformly dispersed by a mixer (trade name: V-type Brenda, manufactured by Dalton Corporation) to obtain the powder coating of the present invention.

[0121] An iron plate (SS400, length 100 mm × width 50 mm × thickness 1.5 mm, average roughness degree [Ra] = 2 to 3 μm), the above-mentioned powder coating is electrostatically applied to a film thickness of 1...

Embodiment 2

[0133] Except having changed the quantity of PAI into 60g, and the quantity of PPS into 40g, the laminated body B was produced by the method similar to Example 1, and the evaluation similar to Example 1 was performed.

Embodiment 3

[0135] Except having changed the quantity of PAI into 50g, and the quantity of PPS into 50g, the laminated body C was produced by the method similar to Example 1, and the evaluation similar to Example 1 was performed.

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Abstract

Disclosed is a powder coating material which does not contain hexavalent chromium that serves as a binder component but exhibits adhesion comparable to that of a chromium phosphate primer even after being subjected to firing at high temperatures for a long time. The powder coating material is characterized by containing a polymer compound (A) having an amide group and / or an imide group, an antioxidative substance (B) and a fluororesin (C). The powder coating material is also characterized in that the polymer compound (A) has an average particle diameter of less than 50 [mu]m.

Description

technical field [0001] The present invention relates to a powder coating and a fluorine-containing laminate. Background technique [0002] Fluororesin is prepared into a coating composition and coated on the substrate of objects requiring corrosion resistance, non-adhesiveness, heat resistance, etc., such as bread molds and cooking pots, to form a fluororesin layer, which has a wide range of uses . However, since fluororesins are non-adhesive, they lack adhesion to substrates made of metals, ceramics, etc. Primer paint. [0003] The fluororesin layer generally needs to have a certain thickness for corrosion-resistant applications. In order to have a certain thickness, it is necessary to perform overlapping coating by repeated coating. In the coating, a powder composed of fluororesin is coated. The body coating is fired at a temperature above the melting point of the fluororesin. The primer is required to have heat-resistant adhesiveness capable of withstanding this long-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/03B05D7/24C09D5/00C09D7/12C09D127/12C09D127/18C09D177/00C09D179/08
CPCC08L81/04C09D127/18C08L81/06C08L27/18C08L77/00C08G73/14C09D5/036C08L79/08Y10T428/269Y10T428/31544C08L2666/14C08L2666/02
Inventor 三瓶大辅鸟居宽
Owner DAIKIN IND LTD
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