Invention Grant
- Patent Title: Process for producing alkali metal-rich aluminosilicate glasses, alkali metal-rich aluminosilicate glasses and use thereof
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Application No.: US15900801Application Date: 2018-02-21
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Publication No.: US10703670B2Publication Date: 2020-07-07
- Inventor: Christof Kass , Rainer Eichholz
- Applicant: SCHOTT AG
- Applicant Address: DE Mainz
- Assignee: SCHOTT AG
- Current Assignee: SCHOTT AG
- Current Assignee Address: DE Mainz
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@bfcfc8c
- Main IPC: C03C3/095
- IPC: C03C3/095 ; C03C3/11 ; C03C3/087 ; C03C3/097 ; C03C1/00 ; A61J1/14 ; C03B19/02 ; C03C4/20

Abstract:
The invention relates to a process for producing alkali metal-rich aluminosilicate glasses having a content (in mol % based on oxide) of alkali metal oxides of 4-16 mol %, of Al2O3 of at least 4 mol % and of B2O3 of 0-4 mol %, wherein 0.15 mol % to 0.9 mol % of chloride(s) and at least one refining agent from the group of sulfate(s) (reported as SO3), CeO2 are added to the glass batch and wherein the sum total of refining agents added in the batch is 0.17 mol % to 1.3 mol %.
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