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Coated glass sheet

A glass plate, coating technology, applied in coating, thin material handling, transportation and packaging, etc., can solve problems such as damage to the first layer and poor resistance

Inactive Publication Date: 2012-07-18
AGC GLASS EUROPE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this two-layer system can provide good scratch resistance before heat treatment, we note that during production, the resistance of the first layer before the deposition of the second layer can be poor and operating Tools such as conveyor rollers or suction devices can damage the first layer before it is protected by the second, causing defects in the final product

Method used

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  • Coated glass sheet
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-17

[0040] Various mixtures containing commercially available glazes and commercially available paints were produced. According to the invention, paint is added to provide increased organic matter content to the glaze.

[0041] The glazes used in all Examples 1-17 are shown in Table I. An example is the white glaze TEMPVER bianco 3400-147A from FENZI, which contains approximately 75% by weight glass frit and approximately 25% by weight organic matter (acrylic resin and plasticizer).

[0042] In examples 1-3, 7-11 and 16-17, GLASSOREX paints from the company FENZI were used, with various colors defined according to the RAL system. These paints typically contain approximately pigments, solvents, methacrylic resins, melamine resins, and epoxy resins. In examples 4-5 and 12-15, a clearcoat from the company FENZI containing anti-UV additives was used; in example 6, the clearcoat did not contain anti-UV additives. The clear coat may also contain methacrylic resins, melamine resins an...

Embodiment 18-28

[0052] The various coated and cured glasses according to the first set of examples were further coated by passing under a curtain coater in which polyurethane paint from the company FENZI containing about 50% by weight of glaze filler was applied to the first coat of glaze and paint. This second coating dries directly after application at 200° C. during approximately 20 minutes.

[0053] The thickness of this additional layer once cured and before heat treatment of the product is given in column 8 of Table I. The product once cured and prior to heat treatment exhibited increased resistance (columns 10-12 of Table I) compared to a product having a single layer comprising glaze and paint.

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Abstract

Glass sheets according to the invention, in particular lacquered glass sheets, are covered with a coating of enamel. This coating comprises between 11 and 40 % of organic material. Such glass sheets may be heat treated and, before heat treatment, may be handled and transported without damaging the coating, may be cut and ground without causing the coating to peel off or to be damaged at the borders of the cutting line, and offer a good resistance under running water, avoiding the peeling off or destruction of the coating during edges grinding or storage or transportation.

Description

technical field [0001] The invention relates to coated glass panes, in particular glass panes having a lacquer layer formed on their surface, and to such glass panes which are heat treatable and operable prior to this possible heat treatment. As used herein, "lacquer layer" means a paint, enamel, lacquer or other type of decorative colored layer. Background technique [0002] Glass sheets according to this invention may have various applications. Painted glass panels can be used, for example, in furniture, wardrobes for decorative purposes, as doors for furniture, as partitions, in tables, shelves, in bathrooms, in shop displays, in As a wall covering, used in outdoor environments and as spandrels. The lacquer can also be used on automotive glazing panels or on at least a part of these glazing, for example on the peripheral part of the windshield. An increasing number of these applications necessitate tempered glass panels, which have the advantage of being more resistant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/14C03C17/00C03C17/42
CPCC03C2218/31C03C2218/355C03C17/42C03C17/008C03C8/14Y10T428/24926Y10T428/252Y10T428/26Y10T428/263Y10T428/264Y10T428/31507Y10T428/31518Y10T428/31525Y10T428/31601Y10T428/31612Y10T428/31616Y10T428/3162Y10T428/31623Y10T428/31627Y10T428/3163Y10T428/31645Y10T428/31649
Inventor R·彼得斯D·皮埃尔
Owner AGC GLASS EUROPE SA
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