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Cured coating for use in optics or electronics

A technology of coating and aminosilane, which is applied in the field of equipment for curing coatings, and can solve problems such as poor stress and adhesion

Inactive Publication Date: 2008-08-20
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These contaminants induce new physical and / or chemical processes and phenomena that lead to additional stress and poor adhesion

Method used

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  • Cured coating for use in optics or electronics
  • Cured coating for use in optics or electronics
  • Cured coating for use in optics or electronics

Examples

Experimental program
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Effect test

example

[0050] Coating preparation A: according to WO 01 / 20641 (without aminosilanes)

[0051] 10g of ZnFe 2 o 4 (particle size 70 nm) was dispersed in a 50 / 50% water / ethanol mixture and "Disperbyk(R) 190" was used as a dispersant. The total weight of the mixture is 30 g. An optically clear liquid was obtained by wet ball milling with 2 mm zirconia particles.

[0052] In a corresponding manner the amount of 3g of Fe 2 o 3 (particle size 40nm) dispersed.

[0053] A hydrolysis mixture of 40 g of methyltrimethoxysilane (MTMS), 0.6 g of tetraethoxysilane (TEOS), 32 g of water, 4 g of ethanol and 0.15 g of glacial acetic acid was stirred at room temperature for 48 hours, Then store in the refrigerator.

[0054] By adding 10g of this ZnFe 2 o 4 Dispersion, 6g of Fe 2 o 3 The dispersion and 10 g of the MTMS / TEOS hydrolyzed mixture were mixed with 4 g of methoxypropanol to prepare a coating liquid, which was then sprayed onto the outer surface of the main part of the lamp vessel. ...

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Abstract

The present invention relates to cured coatings comprising: at least one filler, polyalkoxysilane matrix and at least one cured aminosilane in an amount of 5.5 to 40.0% by weight of the cured coating. These cured coatings can be used in optical or electronic devices and devices, such as lamps.

Description

technical field [0001] The present invention relates to cured coatings used eg in optical devices or electronic devices and devices comprising these cured coatings. Background technique [0002] Colored coatings are well known in the art. Lamp vessels provided with light-absorbing coatings are known, for example, from WO 03 / 023816 and WO 04 / 044487. Such substrates are not completely clean when the coating is applied to the substrate. The presence of particles, even chemically inert particles, creates some very localized stresses around these particles and leads to microcracks that can spread rapidly throughout the coating. Some sol-gel containing coatings can handle the stress induced by particles without crack propagation. In industry, a variety of factors can contaminate substrates. When these contaminants are present on the substrate, the adhesion between the coating and the substrate is greatly reduced. Contaminants can also create other stresses that cannot be hand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20H01J61/40H01J9/20C03C17/00
CPCG02B1/10G02B5/206H01J9/20H01J61/40Y10T428/1352Y10T428/31663C03C17/00
Inventor N·切钱M·德诺特V·默西尔M·博默
Owner SIGNIFY HLDG BV
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