Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Powder paint and painted article

A powder coating and fluororesin technology, applied in powder coatings, polyester coatings, devices for coating liquid on the surface, etc., can solve problems such as insufficient weather resistance of cured films, achieve excellent surface quality, and prevent orange peel Effect

Active Publication Date: 2016-12-14
AGC INC
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the weather resistance of the cured film formed from powder coating materials using these as raw materials is insufficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Powder paint and painted article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0258] (manufacturing of powder coatings)

[0259] 51.2 g of cyclohexyl vinyl ether, 13.3 g of 4-hydroxybutyl vinyl ether, 55.8 g of xylene, 15.7 g of ethanol, 5.82 g of potassium carbonate, terperoxide, and 0.7 g of a 50% by mass xylene solution of tert-butyl valerate and 63 g of chlorotrifluoroethylene (CTFE). The temperature was raised slowly, and after reaching 55° C., it was kept for 20 hours. Then, the temperature was raised to 65° C. and maintained for 5 hours. Next, after cooling to room temperature, 0.39 g of a hindered amine-based light stabilizer (manufactured by BASF, Tinuvin (registered trademark) 144) and 0.13 g of hydroquinone as a polymerization inhibitor were added, followed by stirring for 1 hour. Thereafter, residues were removed by filtration, followed by vacuum drying to obtain a powder coating material (1).

[0260] The content of free Cl, metal elements, light stabilizers and polymerization inhibitors in the obtained powder coating (1), the number ave...

Embodiment 2

[0277] Except having changed 5.82 g of potassium carbonates into 2.36 g of potassium hydroxides, it carried out similarly to Example 1, and obtained the powder coating material (2). The content of each component and the number average molecular weight of the fluororesin before and after melt kneading were measured to evaluate the production stability of the powder coating material (2). Furthermore, after obtaining the powder coating material (2') in the same manner as in Example 1, a test piece was prepared and the appearance of the cured film was evaluated.

Embodiment 3

[0279] Except having changed 5.82 g of potassium carbonates into 1.68 g of sodium hydroxide, it carried out similarly to Example 1, and obtained the powder coating material (3). The content of each component and the number average molecular weight of the fluororesin before and after melt kneading were measured to evaluate the production stability of the powder coating material (3). Furthermore, after obtaining the powder coating material (3') in the same manner as in Example 1, a test piece was prepared and the appearance of the cured film was evaluated.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
melting pointaaaaaaaaaa
water contact angleaaaaaaaaaa
Login to View More

Abstract

Provided is a powder paint unlikely to generate external defects such as orange-peel skin on a formed cured film and characterized by containing: a fluorine resin (A); 2-60 mass ppm, relative to the fluorine resin (A), of at least one type of metal element (B) selected from a group comprising potassium, sodium, and magnesium; 10-10,000 mass ppm, relative to the fluorine resin (A), of a light stabilizer (C); and 10-5,000 mass ppm, relative to the fluorine resin (A) , of a polymerization inhibitor (D).

Description

technical field [0001] The present invention relates to powder coatings and coated articles. Background technique [0002] In recent years, global warming, ozone depletion, acid rain, and other global-scale environmental pollution have become international issues. Therefore, countermeasures against environmental pollution are urgently required, and various emission regulations are currently being carried out in various countries from the viewpoint of environmental protection. Among them, the release of organic solvents (VOCs) into the atmosphere is a serious problem. Therefore, in the context of strengthening regulations on VOC emissions, the removal of organic solvents (de-VOCs) is being promoted especially in the coatings field. [0003] Traditionally, VOCs have been used in paints, but in the process of promoting de-VOCs, recently, VOCs are completely free, exhaust gas treatment and waste water treatment are not required, and can be recycled and reused, and the environme...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/04C09D4/02C09D5/03C09D7/12C09D123/28C09D127/12C09D127/16C09D157/08C09D167/00C09D201/00
CPCC09D123/28C09D127/12C09D167/00C09D201/00C09D201/04C08K2003/262B05D3/0254B05D2202/25C09D5/033C08K3/22C08K5/005C08K2003/2217C08K2003/267C08K5/3435C09D7/48B05D1/04C09D5/036C08K3/26C08L27/12C23C4/134C23C4/12C08K2003/2203
Inventor 斋藤俊相川将崇
Owner AGC INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com