Lithographic plate spray coating powder paint

A technology of spraying powder and paint, applied in the direction of powder paint, polyurea/polyurethane paint, coating, etc., which can solve the problems of easy peeling off, rust, heat resistance, corrosion resistance, and scratch resistance of the coating etc., to achieve good scratch resistance, improved appearance and various physical properties, and improved grades

Inactive Publication Date: 2009-02-18
ANHUI MEIJIA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional powder coating is sprayed on lithography, the coating is easy to fall off and rust, and the heat resistance, corrosion resistance and scratch resistance are not very good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Lithographic spraying powder coating, described coating contains following substances and parts by weight:

[0032] Modified polyurethane resin 40

[0033] Cross-linking curing agent 15

[0034] Mica powder 9

[0035] Talc 12

[0036] Micronized powder 0.5

[0037] Defoamer 0.6

[0038] Leveling agent 10

[0039] High temperature pigment 0.5

[0040] Other additives 0.05.

[0041] The modified polyurethane resin is composed of hydroxyl polyester resin, blocked isocyanate, pigments and fillers and auxiliary agents. The softening point is 105-120 degrees, and the glass transition temperature is 60-70 degrees. Produced by Anhui Shenjian Chemical Co., Ltd.

[0042] The cross-linking curing agent is as follows: the main component of TGIC is composed of epoxy compound PT910, the melting point is 95-105 degrees, and the epoxy equivalent is 141-154; it is produced by UCB Company in the Netherlands.

[0043] The hollow micropowder is: the main component is dibutyltin l...

Embodiment 2

[0049] Except that formula is the following substances and parts by weight are:

[0050] Modified polyurethane resin 45

[0051] Cross-linking curing agent 18

[0052] Mica powder 12

[0053] Talc 14

[0054] Micronized powder 0.6

[0055] Defoamer 0.7

[0056] Leveling agent 12

[0057] High temperature pigment 0.7

[0058] Other auxiliary agent 1.0, outside, all the other are identical with embodiment 1.

[0059] The curing condition of embodiment 1 is 15Min, 200 ℃; The forward impact of the coating film that forms is 80KG / CM, recoil 50KG / CM, coating bending test: 2mm; Coating adhesion (cross-cut method): 0 grade, coating Layer gloss: 88; coating hardness: 2H;) gel time: (180°C) 110S.

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Abstract

The invention discloses a lithographic spray powder paint, which comprises the following materials by weight portion: 40 to 45 portions of modified urethane resin; 15 to 18 portions of cross linkage curing agent; 9 to 12 portions of mica powder; 12 to 14 portions of French chalk; 0.5 to 0.6 portion of hollow miropowder; 0.6 to 0.7 portion of defoamer; 10 to 12 portions of flatting agent; 0.5 to 0.7 portion of hard fire color; and 0.05 to 1.0 portion of other accessory ingredients. By comparing the invention with the prior art, workpieces are not rusted easily; the coating is good in firmness, heat-resistance, anti corrosion and anti-scratch. The lithographic spray powder paint can improve the grade and the comprehensive quality of sprayed products so that the appearance and various physical properties of the products can be comprehensively improved, which can be widely applied on white goods, such as microwave ovens, heater units and high-power lights.

Description

technical field [0001] The invention belongs to powder coatings, in particular to lithographic spraying powder coatings. Background technique [0002] The traditional powder coating is sprayed by lithography, the coating is easy to fall off and rust, and the heat resistance, corrosion resistance and scratch resistance are not very good. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a lithographic spraying powder coating which is not easy to fall off. [0004] The technical scheme for solving technical problems of the present invention is: lithographic spraying powder coating, and described coating contains following material and parts by weight: [0005] Modified polyurethane resin 40-45 [0006] Cross-linking curing agent 15-18 [0007] Mica powder 9-12 [0008] Talc 12-14 [0009] Micronized powder 0.5-0.6 [0010] Defoamer 0.6-0.7 [0011] Leveling agent 10-12 [0012] High temperature pigment 0.5-0.7 [00...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C09D175/06C09D5/03
Inventor王方银
OwnerANHUI MEIJIA NEW MATERIAL