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Glass-ceramic and glass plates and heating plates and its manufacture

A ceramic plate, glass plate technology, applied in the direction of heating arrangement of electric hot plate, induction heating, induction heating device, etc.

Inactive Publication Date: 2007-03-21
EUROKERA SOC & NOM COLLECTIF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The technical issue involved is the color stability of this coating at this temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0137] A white paint composition (denoted A in the table below) was manufactured by the following method:

[0138] Mix 10 grams of Dow Corning  249 silicone polymer particles dissolved in 10 grams of Dow Corning  840 silicone resin (60% polymer toluene solution). The dissolution process was accomplished by stirring at 80°C.

[0139] After cooling, 7.46 grams of interference pigment Iriodin with layered structure  123 (Merck) and 3.73 g TiO 2 RL628 (Ferro Couleurs France S.A.) was added to the solution and mixed until homogeneous.

[0140] The composition was applied in layers with a doctor blade ("knife coat") on a glass slide (Corning 1737-75 x 25 x 1.1 mm) and then polymerized at 250°C for 1 hour to give a dry film thickness of about 25 microns.

[0141] Embodiment 1' (comparative example)

[0142] A commercially available white paint alkyd-modified siloxane composition (designated C in the table below) was also applied to a glass sheet (Corning 1737-75 x 25 x 1.1 m...

Embodiment 2

[0149] White paint compositions were produced by the following method:

[0150] Mix 40 grams of Dow Corning  249 siloxane polymer particles were dissolved in 18 grams of Exxon Solvesso from Exxon Mobil Chemical  100 in solvent. Dissolution was carried out at 80°C, stirring during dissolution.

[0151] After cooling, 29.1 grams of 325 mesh muscovite mica (CMMP: Comptoir des Minéraux et Matières Premières) and 14.6 grams of RL628 TiO 2 (Ferro Couleurs France S.A.) was added to the solution and mixed until homogeneous. The composition was applied by screen printing (screen: 90 strands / cm) on a transparent glass-ceramic substrate (Eurokera) and then polymerized at 250° C. for 1 hour to obtain a dry film thickness of about 15 microns.

[0152] After thermal aging tests in a static oven under the conditions shown in Table 2 below, the CS3 spectrophotometer from Applied Chroma Systems (D65 light source / observed at an angle of 10°) was measured by reflection onto a glass surface...

Embodiment 3

[0160] Metallized red paint compositions were produced by the following method:

[0161] Mix 48 grams of Dow Corning  249 siloxane polymer particles were dissolved in 23.5 grams of Exxon Solvesso from Exxon Mobil Chemical  100 in solvent. The dissolution was carried out at 80°C with stirring.

[0162] After cooling, 36.9 g of Iriodin  524 (Merck) interference pigment was added to the solution and stirred until homogeneous.

[0163] The composition was applied by screen printing (screen: 43 strands / cm) on a transparent glass-ceramic substrate (Eurokera) and then polymerized at 250° C. for 1 hour to obtain a dry film thickness of about 35 μm.

[0164] After thermal aging tests in a static oven under the conditions shown in Table 3 below, the CS3 spectrophotometer from Applied Chroma Systems (D65 light source / observed at an angle of 10°) was measured by reflection onto a glass surface with the sample coating. Color points x, y measured from reflected light on a glass-cera...

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Abstract

Disclosed in the present application include: (i) plates, having two approximately parallel main sides, of a glass-ceramic or a glass displaying a certain transparency, with a colored coating fixed to at least one part of the surface of one of said two main sides; (ii) heating plates, particularly cook-tops, consisting of such plates or obtainable from such plates. These heating plates are intended to be fitted above heating elements, their side bearing said coating facing said heating elements; and (iii) the preparation of such plates. The original colored coating proposed is particularly interesting with reference to its color stability.

Description

field of invention [0001] The present invention relates to glass-ceramic plates and glass plates, heating plates and methods for their manufacture. In particular, the invention relates to coated glass-ceramic panels and glass panels, in particular heating panels, and methods for their manufacture. Background of the invention [0002] The purpose of the present invention is: [0003] - glass-ceramic or glass plates with a certain transparency, these plates have two substantially parallel main faces, on at least a part of the surface of one of the two main faces, a colored coating is fixed; [0004] - A heating plate, in particular a cooktop, consisting of or producible from said sheet material. the heating plates are intended to be mounted above the heating elements, their sides having said coating facing said heating elements; [0005] - Manufacture of said panels. [0006] The panels of the invention are transparent; in any case sufficiently tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/00H05B3/74H05B6/12C03B32/00C03B32/02C03C10/00C03C17/04C03C17/30C03C17/32F24C15/10
CPCC03C2217/445C03C17/009C03C17/30C03C17/04C03B32/02C03C2217/485C03C2217/477H05B3/74C03C17/007
Inventor D·亨利F·弗洛朗
Owner EUROKERA SOC & NOM COLLECTIF