Organosilicone modified carboxyl-terminated polyester resin for TGIC heat-resistant powder coating and preparation method thereof

A carboxyl-terminated polyester and powder coating technology, which is applied in powder coatings, polyester coatings, coatings, etc., can solve the problems of limited heat resistance and heat resistance of polymers, and achieve improved performance and good modification effects , cost reduction effect

Active Publication Date: 2013-05-01
GUANGZHOU KINTE IND
View PDF4 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the performance advantage and price advantage of this type of polyester resin can greatly expand its market and application range, it should be noted that due to the copolymerization of silicone and polyester resin, that is to say, its chain segment also contains more C-O bond and C-C bond, and this is the main reason why polymers are not heat-resistant, so there is actually a limit to the degree of heat resistance that can be improved

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
  • Organosilicone modified carboxyl-terminated polyester resin for TGIC heat-resistant powder coating and preparation method thereof
  • Organosilicone modified carboxyl-terminated polyester resin for TGIC heat-resistant powder coating and preparation method thereof
  • Organosilicone modified carboxyl-terminated polyester resin for TGIC heat-resistant powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The silicone in the following synthesis examples can be alkoxy (Si-OR') silicone intermediates (oligomers), including Dow Corning products such as RSN-3074, RSN-3037 and Wacker 368, and can also be silicone intermediates (oligomers) containing Silicone hydroxyl (Si-OH) silicone intermediates (oligomers), including Dow Corning's RSN-6018 and Wacker 604.

[0026] Synthesis Example 1: Synthesis of Silicone Modified Polyester Resin A

[0027] In a 1L four-necked flask equipped with a heating mantle, stirrer, thermometer, distillation column and condenser tube, add 215g of neopentyl glycol, raise the temperature to 140°C until the neopentyl glycol is completely melted, and then add silicon hydroxyl (Si-OH ) silicone intermediate (RSN-6018) 60g, heat up to 170°C, keep warm for 1h, then add 321.5g of terephthalic acid and 0.6g of tetrabutyl titanate in sequence, heat up to 180°C under nitrogen gas to start esterification React and produce esterified water to distill out. Dur...

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
acid valueaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to view more

Abstract

The invention discloses an organosilicon modified carboxyl-terminated polyester resin for a heat-resistant powder coating. The organosilicon modified carboxyl-terminated polyester resin is formed by melt polycondensation reaction of the following components by weight percent: 5-25 percent of organosilicon, 25-45 percent of polyatomic alcohol, 35-65 percent of aromatic polyhydric acid, 0-5 percent of fat polyhydric acid, 4-15 percent of acidolysis agent and 0.01-0.15 percent of esterification catalyst. The invention further discloses a preparation method of the organosilicon modified carboxyl-terminated polyester resin for the heat-resistant powder coating. The polyester resin prepared by adopting the method has proper glass transition temperature, softening point and storage stability, and the powder coating prepared by the organosilicon modified carboxyl-terminated polyester resin has excellent heat resistance and is particularly suitable for polyester/TGIC curing systems.

Description

technical field [0001] The invention relates to an organosilicon-modified carboxyl-terminated polyester resin for TGIC heat-resistant powder coatings, and also relates to a preparation method of the organosilicon-modified carboxyl-terminated polyester resin. Background technique [0002] Powder coating and its coating have developed rapidly since the 1970s and 1980s due to the characteristics of low pollution, resource saving, high labor productivity and ease of automatic production. With the development of the coatings industry, powder coatings have been widely used in the coating of metal substrates. In recent years, the development and application of functional products such as antibacterial, high wear-resistant, and heat-resistant types have become powder coatings. direction of development. Heat-resistant powder coatings refer to powder coatings that can withstand temperatures above 200°C for a long time, have a good coating film, and enable the protected object to fun...

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): C08G63/695C09D167/00C09D167/02C09D5/03
Inventor 顾宇昕谢静李勇何涛曾定
Owner GUANGZHOU KINTE IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap