| 发明名称 |
REVERSE PHOTOCHROMIC BOROSILICATE GLASSES |
| 摘要 |
Borosilicate glasses are disclosed having (in weight %) 66-76% SiO2, 0-8% Al2O3, 10-18% B2O3, 0-4% Li2O, 0-12% Na2O, 0-12% K2O, 1-1.5% Ag, 1.5-2.5% Cl− and 0.01-0.06% of a summed amount of CuO and NiO, wherein the glass composition is bleachable upon exposure to ultraviolet irradiation from a stable state color or shade to a lighter color or shade. Such reverse photochromic borosilicate glass compositions may be thermally darkenable. The borosilicate glasses may be strengthened via ion-exchange strengthening treatment. The borosilicate glasses may retain their reverse photochromic and thermally darkenable properties even after ion-exchange strengthening treatment. |
| 申请公布号 |
US2017050878(A1) |
申请公布日期 |
2017.02.23 |
| 申请号 |
US201615347066 |
申请日期 |
2016.11.09 |
| 申请人 |
Corning Incorporated |
发明人 |
Mauro John Christopher;Thirion Lynn Marie |
| 分类号 |
C03C3/11;C03C8/06;C03C17/02;C03C4/06;C03C21/00;C03C23/00 |
主分类号 |
C03C3/11 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A photochromic borosilicate glass composition comprising (in weight %) 66-76% SiO2, 0-8% Al2O3, 10-18% B2O3, 0-4% Li2O, 0-12% Na2O, 0-12% K2O, 1-1.5% Ag, 1.5-2.5% Cl−, and 0.01-0.06% of a summed amount of CuO and NiO, wherein the glass composition is substantially free of Br−. |
| 地址 |
Corning NY US |
