Invention Grant
- Patent Title: Borosilicate glass with low brittleness and high intrinsic strength, the production thereof, and the use thereof
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Application No.: US14757391Application Date: 2015-12-23
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Publication No.: US10442723B2Publication Date: 2019-10-15
- Inventor: Gerhard Lautenschlaeger , Jochen Alkemper , Ulf Dahlmann , Ulrich Fotheringham
- Applicant: SCHOTT AG
- Applicant Address: DE Mainz
- Assignee: SCHOTT AG
- Current Assignee: SCHOTT AG
- Current Assignee Address: DE Mainz
- Agency: Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
- Priority: DE102014119594 20141223
- Main IPC: C03C3/089
- IPC: C03C3/089 ; C03C3/091 ; C03B18/02 ; C03C4/00
Abstract:
An alkali borosilicate glass is provided that includes: SiO270-86 wt % Al2O30-5 wt % B2O39.0-25 wt % Na2O0.5-5.0 wt % K2O0-1.0 wt %, and Li2O0-1.0 wt %. The proportions of the components are chosen in such a way that the weighted crosslinking index, that is, the mean number n of constraints per atom has a value greater than 2.9.
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