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Composition for coating

A composition and coating technology, which is applied in the direction of coating, thin material treatment, and devices for coating liquid on the surface, can solve the problems of not considering the properties of the substrate and the requirements of the coating, so as to improve the service life and expand the scope of use Effect

Active Publication Date: 2012-10-10
SILICALIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technique of this patent is not suitable for the coating of stone substrates, bec

Method used

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  • Composition for coating
  • Composition for coating
  • Composition for coating

Examples

Experimental program
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Effect test

Embodiment 1

[0088] Add 1ml of hydrochloric acid to ethanol / water (80ml of ethanol; 20ml of water) hydroalcoholic solution under magnetic stirring, add 55ml of TEOS (tetraethyl orthosilicate) and 23ml of GLYMO (3-glycidyloxypropyl trimethyl Oxysilane). The solution was continuously stirred for 10 minutes, and 5.4 g of α-silicon carbide with a particle diameter of 80 nm was added. The mixture was stirred continuously for 5 minutes before being applied to the surface of the artificial marble slab.

[0089] Dry in an oven at 120°C for 25 minutes.

Embodiment 2

[0091] Add 1ml of hydrochloric acid to ethanol / water (80ml ethanol; 20ml water) hydroalcoholic solution under magnetic stirring, add 40ml of TEOS (tetraethyl orthosilicate) and 40ml of GLYMO (3-glycidyloxypropyl trimethoxy base silane). The solution was continuously stirred for 10 minutes, and 5.4 g of α-silicon carbide with a particle diameter of 1 μm was added. The mixture was stirred continuously for 5 minutes before being applied to the surface of the artificial marble slab.

[0092] Dry in an oven at 85°C for 45 minutes.

Embodiment 3

[0094] The artificial marble slab (substrate) was treated in a 3.5% by volume HCl aqueous solution at 25°C for 40 seconds. The base was washed 3 times with water and then dried.

[0095] Add 1ml of hydrochloric acid to ethanol / water (80ml ethanol; 20ml water) hydroalcoholic solution under magnetic stirring, add 25ml of TEOS (tetraethyl orthosilicate) and 55ml of GLYMO (3-glycidyloxypropyl trimethoxy base silane). The solution was continuously stirred for 10 minutes, and 4.4 g of α-silicon carbide with a particle diameter of 1 μm and 1 g of α-silicon carbide with a particle diameter of 80 nm were added. The mixture was stirred continuously for 5 minutes and applied to the substrate.

[0096] Dry in an oven at 85°C for 45 minutes.

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Abstract

Provided is a method which consists of the formation of a layer over a stone substrate to increase its hardness, chemical resistance, wear and scratch resistance, comprising applying on the substrate a coating matrix incorporating an organic material and fillers including inorganic nanoparticles and/or microparticles; chemically binding said matrix to the substrate,by a self-assembly process and/or a binding process by covalent bonding, electrostatic bonding, van der Waals bonding or hydrogen bonds; and finally drying said matrix. The mentioned organic material is selected from organosilanes, organophosphates, polycarboxylic compounds, compounds based on triazine heterocycles and said nanoparticles are nanoparticles of oxides, carbides, borides, nitrides of metals or of semimetals.

Description

technical field [0001] The present invention relates in a first aspect to a method for coating a stone substrate which in this description is understood as natural marble or comprising calcareous material and / or dolomitic limestone formed by a binder. Agglomerated stone aggregates, this method provides a coating that increases the hardness of the stone substrate, improving chemical resistance, abrasion resistance and scratch resistance. The coating of the present invention improves the stability of the surface against etching by chemicals and reduces staining. [0002] The process of the present invention allows, at the same time, to increase the longevity of the use of stone substrates such as artificial marble slabs in optimum conditions, and at the same time to significantly expand the range of use of such products (taking into account the resistance shown by the exposed surface to various factors), and Reduce the number of scratched or defective pieces during handling, sh...

Claims

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Application Information

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IPC IPC(8): C09D5/00C09D7/61
CPCC08K3/36C08G77/14C08K3/22C08K3/0008C08K3/28C08K3/34C08K3/38C09D183/06C08K3/14C09D5/00C09D7/1216B82Y30/00C04B41/009C04B41/4922C04B41/64C09D7/61C08K3/01Y10T428/269Y10T428/31942Y10T428/31663C04B14/285C04B26/125C04B41/4549C04B41/5059C04B41/5035B05D1/00C04B41/45C09D183/08
Inventor E·舍内菲尔德F·桑奇斯布里内斯A·奥尔特加穆尔吉亚德利J·戈麦斯科尔东M·D·洛伦兹阿卡D·科尔德罗埃切巴瑞
Owner SILICALIA
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