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Glass sheet with an enamel-based coatin

A glass plate, coating technology, applied in the direction of coating, thin material handling, transportation and packaging, which can solve the problems of damage to the first layer, low resistance, etc.

Inactive Publication Date: 2014-11-26
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 may provide good mechanical resistance to scratches prior to heat treatment, we note that during production the resistance of the first layer may be low before the second layer is deposited, and in Processing equipment such as roller conveyors or suction caps (caps) can damage the first layer before the first layer is protected by the second layer, resulting in defects in the final product

Method used

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  • Glass sheet with an enamel-based coatin
  • Glass sheet with an enamel-based coatin
  • Glass sheet with an enamel-based coatin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0056] Embodiment 1-5 (according to the present invention)

[0057] First, a 4 mm thick clear float glass plate was washed in the usual way. It is then passed under the bar coater where it is covered with the glaze-based composition. It was then cured by temperature under the conditions described in Table I. Also given in Table I are the coating thicknesses once cured and before heat treatment.

[0058] For each of Examples 1-5, the enamel-based coating composition deposited on the glass plate was 25-50 wt% of commercial paint (from FENZI company's Clearcoat (varnish)) added to 50-75 wt% of Glass frit and pigments are in and thoroughly mixed with the glaze in order to increase the content of reactive organic materials in the medium. The Clearcoat contains methacrylic resin, melamine resin and epoxy resin. Thus, the medium is enriched in crosslinkable compounds, ie reactive organic compounds. "Reactive organic compound" is understood to mean an organic material which will...

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Abstract

The invention relates to a glass sheet having an enamel-based coating provided on at least one of its surface, which is in direct contact with said sheet and which comprises :a glass frit, inorganic pigments and organic compounds comprising at least one cross-linked compound, said coating exhibiting a xylene resistance of at least 00double rubs,as measured using the Solvent Resistance Rub Test according to ASTM D5402-06 (2011) as modified therein. Such a glass sheet can be heat treated (for example, in view of a subsequent tempering process) and, before heat treatment, can be handled and transported without damaging the coating, can 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, especially glass panes covered by an enamel-based coating. The glass panes according to the invention are temperable, that is to say they can be heat-treated, in particular for the purpose of subsequent tempering, and can be processed without deterioration prior to their heat treatment. [0002] The glass panes according to the invention can have various different applications. For example, they can be used for decorative purposes, for furniture, wardrobes, partitions, tables, shelves, in bathrooms, for wall coverings, outside places, as spandrels. They can also be used in automotive glazing, for example in windshields. An increasing number of these applications require tempered glass sheets because such glass sheets have the advantage of being more resistant to cracking and shattering. Background technique [0003] Many types of glass panes covered with enamel-based coatings are known in the art. In par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/00
CPCC03C17/007C03C2217/475C03C2217/445Y10T428/263Y10T428/269C03C17/009C03C2217/29
Inventor C·迪内尔R·彼得斯
Owner AGC GLASS EUROPE SA
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