Substrate having functional coating and temporary protection layer

A functional and protective layer technology, applied in the field of protection of glass substrates, can solve the problems of washing machine pollution, cold corrosion, unprotected functional coatings, etc., and achieve the effect of simplifying industrial implementation

Inactive Publication Date: 2019-06-28
SAINT-GOBAIN GLASS FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But first, these layers do not protect the functional coating during the washing phase
Furthermore, they additionally have the disadvantage of causing contamination of the washing machines of processing companies
[0030] Solutions from the prior art are not effective enough to limit contact between functional coatings and chemical elements, including liquid water or water vapor, which can cause cold corrosion during various storage and / or processing steps

Method used

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  • Substrate having functional coating and temporary protection layer
  • Substrate having functional coating and temporary protection layer
  • Substrate having functional coating and temporary protection layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0160] I. Materials used

[0161] 1. Substrate and functional layer

[0162] The substrate used was a flat glass substrate with a thickness of about 6 mm obtained by the flotation method consisting in pouring molten glass onto a tin bath.

[0163] Functional coatings providing solar control properties and comprising stacks of thin layers were deposited using a magnetron cathode sputtering device.

[0164] The first functional coating, hereinafter referred to as triple Ag-layer, comprises an alternation of three silver layers (metallic functional layers) and four anti-reflective coatings in succession starting from the substrate, each anti-reflective coating comprising at least one A dielectric layer such that each metallic functional layer is disposed between two antireflection coatings. The total thickness of this functional coating is 200-250 nm.

[0165] The second functional coating (hereinafter referred to as double Ag layer) consists of a stack of thin layers comprisi...

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Abstract

The invention relates to a substrate having a functional coating and a temporary protection layer, and provides a substrate including two main sides defining two main surfaces separated by edges, saidsubstrate having a functional coating deposited on at least one portion of a main surface and a temporary protection layer deposited on at least one portion of the functional coating. The temporary protection layer, which is hardened by drying, UV radiation or electron beam, has a thickness of at least one micrometre and is not water-soluble. Said temporary protection layer resulting from a liquid composition including (meth)acrylate compositions selected from monomers, oligomers, prepolymers or polymers including at least one (meth)acrylate function.

Description

[0001] The priority date of this application is August 5, 2013, the international application number is PCT / FR2014 / 052040, the application number entering the national phase is 201480044020.7, and the title of the invention is "substrate with functional coating and temporary protective layer" Divisional application of the PCT application. technical field [0002] The invention relates to the protection of substrates, preferably glass substrates, carrying at least one functional coating. These substrates are intended to undergo shipping, processing and / or storage steps. Background technique [0003] Use of substrates comprising carrying functional coatings (in order to provide said substrate with optical properties (mirror layer or anti-reflection layer), thermal properties (low emissivity, solar control or sun protection layers, especially layers based on silver layers) Articles of either electrical nature (antistatic layers, transparent conductive layers) are known. [00...

Claims

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Application Information

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IPC IPC(8): C03C17/32C03C17/36C03C17/42B05D1/28C23C14/34
CPCB65G49/069C03C17/36C03C17/3626C03C17/3644C03C17/366C03C17/42C09D5/006C09D5/008C09D5/20C09D133/08C23C14/0641C23C14/083C23C14/35C23C14/58C23C14/5873C03C2218/328C03C2218/355C03C21/00
Inventor N.纳道S.莫伦斯V.拉谢
Owner SAINT-GOBAIN GLASS FRANCE
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