The invention relates to a composition comprising a glass substrate, SiO: 2, Al: 55 ~ 70wt% 2 O: 3, ZrO: 0 ~ 1wt% 2 ~ 5wt% 0.1, Na 2 ~ O0.1: 5wt%, K: 2 O7 ~ 13wt%, MgO7 ~ 14wt% CaO0, 4wt%, SrO7 ~ 12wt% ~ 3 and SO: 0.01 ~ 0.5wt%. Through the glass substrate using the composition due to the strain point of at least 570 DEG C, showing low thermal deformation at high temperature in the roasting process, because of lower than 1460 DEG C melting point, no such as fuel costs and short cycle life of refractory such shortcomings, and at 50 to 350 DEG C temperature range is 80 ~ 95 * 10 = 7 / C: the coefficient of thermal expansion. Accordingly, the glass according to the present invention is suitable for use as a substrate.
【技术实现步骤摘要】
【国外来华专利技术】
【技术保护点】
一种玻璃组合物,其含有SiO↓[2]55~70wt%、Al↓[2]O↓[3]0~1wt%、ZrO↓[2]0.1~5wt%、Na↓[2]O0.1~5wt%、K↓[2]O7~13wt%、MgO7~14wt%、CaO0~4wt%、SrO7~12wt%和SO↓[3]0.01~0.5wt%。
【技术特征摘要】
【国外来华专利技术】...
【专利技术属性】
技术研发人员:李振赫,李时懋,李宰旭,
申请(专利权)人:株式会社KCC,
类型:发明
国别省市:KR[韩国]
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