High quality textured composite resin composition and galvanized steel sheet coated with composite resin composition

A technology of composite resin and galvanized steel sheet, applied in the direction of superimposed layer plating, coating, anti-corrosion coating, etc., can solve the problems of low productivity and high price, and achieve the effect of improving stamping workability and chemical resistance

Inactive Publication Date: 2018-12-21
POHANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although a high-end appearance can be achieved, the productivity is low and the price is expensive

Method used

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  • High quality textured composite resin composition and galvanized steel sheet coated with composite resin composition
  • High quality textured composite resin composition and galvanized steel sheet coated with composite resin composition
  • High quality textured composite resin composition and galvanized steel sheet coated with composite resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～12 and comparative example 1～11

[0148] As shown in Table 1 below, a urethane-modified polyester resin, a curing agent, an acid catalyst, and an amine catalyst were mixed and put into a solvent to prepare 100 parts by weight of a transparent resin composition. The balance in the transparent resin composition is solvent.

[0149] Next, with the contents shown in Examples 1-12 and Comparative Examples 1-11 in the following Table 1, the urethane-modified polyester resin, curing agent, acid catalyst and amine catalyst, and further added inorganic Pigments and metal pigments are mixed, and then they are put into a solvent and dispersed by a high-speed sand mill disperser. A colored composite resin composition was thus prepared.

[0150] A cross-linked resin (manufactured by KCC Co., Ltd., Tg=10) and a linear resin (manufactured by KCC Co., Ltd., Tg=60) with a weight average molecular weight of 20000 were mixed at a weight ratio of 2:1 as The urethane modified polyester resin is used.

[0151] The curing agent i...

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Abstract

The present invention provides a composite resin composition comprising 30 to 60% by weight of a urethane-modified polyester resin in which a linear type and a crosslinking type are mixed, 3 to 15% byweight of at least one curing agent from among an aziridine curing agent and a melamine curing agent, 0.05 to 1.5% by weight of an acid curing catalyst, 0.05 to 1.5% by weight of an amine curing catalyst, 0.1 to 15% by weight of a colored inorganic pigment, and a remainder of a solvent. Also, the present invention provides a composite resin-coated galvanized steel sheet having a composite resin coating film formed of the above composition.

Description

technical field [0001] The present invention relates to a steel plate coated with a colored composite resin for use as a panel in the field of video home appliances, having a high-grade color texture, excellent processability and chemical resistance, and a manufacturing method thereof. Background technique [0002] The casing (Case Top), base (Bottom Chassis), and rear cover (Rear Cover) parts of video home appliances such as televisions (TVs) should have a high-quality texture that induces consumers' purchasing power, and require formability required for stamping processing, and Corrosion resistance and chemical resistance to a level that will not cause problems even if it is used for more than 10 years. [0003] Therefore, injection-molded products of aluminum metal, plastic, or thick-film color-coated steel sheets are being used as components as described above. Among them, aluminum metal has the advantages of light weight and strong corrosion resistance. However, the a...

Claims

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Application Information

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IPC IPC(8): C08L67/00C09C1/64C09C1/62C08K5/00C08K5/3492C08K5/3412C23C26/00C23C2/06C23C2/40
CPCC09C1/62C09C1/64C23C2/06C23C2/40C09D175/06C08K2003/2241C08K2003/2272C23C2/26C23C28/00C08G2150/90C08K3/04C08K3/22C08K5/0025C08K5/3412C08K5/34922C08K5/42C09D5/08C08K3/042C08K3/041C09D7/61C08L75/06C08L67/00C23C26/00
Inventor 赵斗焕姜春镐
Owner POHANG IRON & STEEL CO LTD
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