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Coating composition for depositing thin coatings by cathodic electrodeposition

A cathodic electrodeposition and composition technology, applied in electrophoretic coatings, coatings, epoxy coatings, etc., can solve the problems of low temperature resistance of deposited coatings

Active Publication Date: 2022-02-25
OBSHCHESTVO S OGRANICHENNOY OTVETSTVENNOSTYU RUSTEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the aforementioned coating and varnish compositions have the disadvantage of low high temperature resistance of the deposited coating

Method used

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  • Coating composition for depositing thin coatings by cathodic electrodeposition
  • Coating composition for depositing thin coatings by cathodic electrodeposition
  • Coating composition for depositing thin coatings by cathodic electrodeposition

Examples

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Embodiment Construction

[0015] The claimed paint and varnish compositions without the addition of pigment paste and waterborne fluoroelastomer are prepared as follows.

[0016] Take a predetermined amount of distilled water pre-acidified with acetic acid (within the required range), then, under vigorous stirring (200-500rpm), mix it with 36% to 38% (d.w.b.) aqueous The epoxy resin (in the required range) was mixed, and then a predetermined amount (in the required range) of 2% 3-aminopropyltriethoxysilane in water was added.

[0017] The claimed coating and varnish compositions incorporating pigment pastes and / or aqueous fluoroelastomers are prepared as follows.

[0018] Take a predetermined amount of distilled water pre-acidified with acetic acid (within the required range), and mix it with an appropriate amount of 60% to 70% (d.w.b.) of water-based fluoroelastomer under stirring, and then, under vigorous stirring (200- 500 rpm), add a predetermined amount of 36-38% (d.w.b.) aqueous epoxy resin emul...

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Abstract

The present invention relates to coating compositions for depositing thin coatings by cathodic electrodeposition with high dispersibility for obtaining chemical and heat resistant coatings by cathodic electrodeposition. The technical effect of the invention is to increase the heat resistance, salt resistance and water resistance of the coating as well as the high chemical resistance of the coating. Varnish composition for obtaining thin coatings by cathodic electrodeposition method comprising: aqueous emulsion of 36‑38% epoxy resin, 100% acetic acid, 2% aqueous solution of 3‑aminopropyltriethoxysilane at the reference standard concentration , and distilled water, with the following composition ratios, g / l: aqueous epoxy resin emulsion 120‑150; 100% acetic acid 0.1‑0.6; 2% 3‑aminopropyltriethoxysilane aqueous solution 5‑50; add distilled water to 1 Litre.

Description

technical field [0001] The present invention relates to aqueous dispersions of paint and varnish compositions (polyelectrolytes) having throwing power, suitable for depositing chemically and temperature-resistant paints by the cathodic-electrodeposition method (electrophoresis). Background technique [0002] The prior art solution given in patent RU2222563C1 published on January 27, 2004 discloses a composition based on fluoroplastics and water for depositing a hydrophobic chemical and abrasion resistant electrophoretic coating, wherein the combination As a fluoroplastic, the aqueous dispersion of fluoroplastic F-40D (DuPont's Tefzel fluoropolymer can be used as an analogue) also contains epoxy amine adducts, diethylaminopropylamine and epoxy resin in ethyl alcohol. 100% formic acid; ethoxylated nonylphenol as a stabilizer, and lauryl ammonium chloride, the following components content, g / L: said adduct - 100; 100 % formic acid - 1.41; aqueous dispersion of fluoroplastic F-...

Claims

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Application Information

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IPC IPC(8): C09D5/02C09D5/44C09D5/46C09D163/00C09D127/12C09D127/20C09D127/18C09D127/16
CPCC09D5/02C09D5/44C09D127/12C09D127/16C09D127/18C09D127/20C09D163/00
Inventor 伊莉娜·费奥多罗芙娜·乌特基纳塔特雅纳·尼古拉耶夫纳·玛伊瓦娜杰日达·弗拉基米洛夫娜·提蒙金
Owner OBSHCHESTVO S OGRANICHENNOY OTVETSTVENNOSTYU RUSTEK