Invention Grant
- Patent Title: X-ray opaque barium-free glasses and uses thereof
- Patent Title (中): X射线不透明的无钡玻璃及其用途
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Application No.: US12695419Application Date: 2010-01-28
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Publication No.: US08268739B2Publication Date: 2012-09-18
- Inventor: Simone Monika Ritter , Oliver Hochrein , Sabine Pichler-Wilhelm
- Applicant: Simone Monika Ritter , Oliver Hochrein , Sabine Pichler-Wilhelm
- Applicant Address: DE Mainz
- Assignee: Schott AG
- Current Assignee: Schott AG
- Current Assignee Address: DE Mainz
- Agency: Pearl Cohen Zedek Latzer, LLP
- Priority: DE102009008953 20090213
- Main IPC: C03C3/15
- IPC: C03C3/15 ; C03C3/155 ; C03C3/112
Abstract:
Zirconium-containing BaO- and PbO-free X-ray opaque glasses having a refractive index nd of about 1.57 to about 1.61 and a high X-ray opacity with an aluminum equivalent thickness of at least about 400% are provided. Such glasses are based on a SiO2—Al2O3—La2O3—ZrO2—Cs2O system with additions of Li2O, Na2O, ZnO and/or Ta2O5. Such glasses may be used, in particular, as dental glasses or as optical glasses.
Public/Granted literature
- US20100210755A1 X-ray Opaque Barium-Free Glasses and Uses Thereof Public/Granted day:2010-08-19
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