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Glass composition

A glass composition and composition technology, applied in the field of glass compositions, can solve the problems of low solar heat radiation transmittance, inability to provide blue-green, etc., achieve low solar heat radiation transmittance, prevent heating and ultraviolet transmission, high Effect of Visible Light Transmittance

Inactive Publication Date: 2018-11-23
KCC GLASS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is impossible to provide a blue-green glass having a beautiful blue-green color desired by ordinary consumers, while having a high visible light transmittance and a low solar heat radiation transmittance

Method used

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  • Glass composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] Glass melts described in all examples and comparative examples were prepared according to the following schemes.

[0043] In the manufacture of glass melts, the components are weighed and mixed in a mixer.

[0044] As raw materials, silica, feldspar, limestone, dolomite, soda ash, sodium sulfate, and iron oxide are used, and a glass batch is melted using a gas furnace or an electric furnace, wherein the mixing ratio of the glass batch is controlled to obtain the following implementation Examples and the target composition involved in the comparative example. The composition of the soda lime glass composition used is as follows, based on the weight % of the glass composition masterbatch excluding the colorant in the glass composition: 71.0% SiO 2 , 1.3% Al 2 o 3 , 9.8% CaO, 3.8% MgO, 13.9% Na 2 O, 0.15%dK 2 O and 0.2% SO 3 .

[0045] 500 g of the weighed mixture was put into a 90% platinum / 10% rhodium crucible and melted in a gas furnace at 1450° C. for 1 hour, fo...

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Abstract

The present invention relates to a glass composition which can allow for realizing beautiful bluish green colors therein even upon the use of a trace amount of a colorant such as Ti, Co, and Cr, securing high visible light transmittance suitable for window glass, and effectively reducing transmittance of solar heat radiation to help reduce a cooling load in buildings and vehicles.

Description

technical field [0001] The present invention relates to a glass composition. Background technique [0002] The present invention relates to a glass composition for windows of buildings and front or side windows of vehicles. In general, glass used for vehicle windows needs to have a high visible light transmittance (Tvis.) to stably ensure visibility, and a low solar heat radiation transmittance (Tds.) to make users feel comfortable. Furthermore, if the glass of a vehicle is required to exhibit cyan, it is required that the glass of the vehicle satisfy some conditions in terms of a specific dominant wavelength (Dw.) and excitation purity (Pe.). [0003] As conventional techniques involving blue and green glass compositions, US Patent Nos. 3,652,303, 4,866,010 or 5,070,048 may be cited as examples. In these patent documents, iron or cobalt is used as a colorant contained in the glass composition, and the content of iron or cobalt is controlled to obtain desired ultraviolet a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/087C03C4/00C03C4/08C03C4/02
CPCC03C3/087C03C4/02C03C4/0092C03C4/085C03C4/08C03C4/00C03C4/082C03C2201/42
Inventor 金龙悧曹润敏俞成烨
Owner KCC GLASS CORP
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