Colored glass frits for automotive applications and related methods

A glass frit, 1mol% technology, applied in the field of colored glass frit

Pending Publication Date: 2022-03-15
FELLOWES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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[0004] Difficulties and shortcomings associated with

Method used

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  • Colored glass frits for automotive applications and related methods
  • Colored glass frits for automotive applications and related methods
  • Colored glass frits for automotive applications and related methods

Examples

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Embodiment

[0063] The following examples are provided to generally illustrate various embodiments in accordance with the present subject matter and should not be construed as limiting the invention.

[0064] The following compositions represent exemplary embodiments of the subject matter. They exist to explain the subject in more detail, not to limit it. The subject glass frit compositions are shown in Tables 5, 7 and 9. In Tables 6, 8 and 9 the results of the following studies are shown.

[0065] Glass frits are made by mixing the raw materials shown in Tables 1-4 and are further described in this specification. The mixed raw meal components are melted at a temperature of 1350° C. to 1475° C. for about 45-90 minutes, and then subjected to quenching treatment, such as water or air quenching, or other methods known to those skilled in the art. The resulting frit is then ground to a fine particle size, preferably 2 to 6 microns using a ball mill. The finely ground glass powder is then ...

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Abstract

Glass frits and use of enamel compositions from glass frits in automotive applications. The enamel composition includes one or more glass frits having a smaller amount of bismuth and/or zinc compared to available reference enamel compositions. The glass frit includes one or more transition metal oxides. The frit has improved chemical durability, lower glass density, lower L value, or optimized optical density, depending on the end user's application needs.

Description

technical field [0001] This topic relates to lead-free transition metal-containing tinted frits and related methods for use in automotive applications. Background technique [0002] Colored enamel paints have long been used to form opaque, dark bands of enamel on segments of automotive glass such as windshields, side windows, and rear windows. Automobile manufacturers have discovered that the appearance of a pane of glass can be greatly improved by providing a relatively narrow, opaque, dark band of enamel around one or more edges of the interior surface of the pane. In addition to giving the glass its aesthetic appearance, these bands of opaque, pigmented enamel block sunlight, preventing degradation of the underlying adhesive due to UV radiation. Furthermore, these bands of opaque colored enamel are preferably capable of shielding areas of the silver-containing buss bars and wiring connections of the rear window defroster system from view from outside the vehicle. [000...

Claims

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Application Information

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IPC IPC(8): C03C8/00C23D5/04
CPCC23D5/02C03C3/091C03C3/093C03C8/22C03C8/14C03C17/02C03C3/064C03C1/04C03C3/066C03C4/02C03C8/02C03C8/04C03C8/16C03C2204/00C03C2207/00
Inventor E·A·阿克斯特尔三世A·波力兹S·斯里德哈兰G·E·萨科斯克
Owner FELLOWES INC
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