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Beta-Spodumene Glass-Ceramics That Are White, Opalescent, Or Opaque, With Low Titanium Content, And Tin-Fined

Patent No. EP3655368 (titled "Beta-Spodumene Glass-Ceramics That Are White, Opalescent, Or Opaque, With Low Titanium Content, And Tin-Fined") was filed by Eurokera on Jul 19, 2018. The application was issued on Oct 22, 2025.

Patent Summary

Glass-ceramics with a solid solution of β-spodumene as the main crystalline phase, comprising a lithium aluminosilicate (LAS) composition with specific ranges of SiO2 (60-70%), Al2O3 (18-23%), Li2O (3.0-4.3%), MgO (0-2%), ZnO (1-4%), and TiO2 (1.3-1.75%) that enable white, opalescent, or opaque materials without arsenic or antimony. The composition is achieved through a method involving heat treatment of a vitrifiable charge under conditions to melt, fine, shape, and crystallize the precursor glass.

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SCHOTTJun 7, 2022FUCHS PATENTANWALTE PARTNERSCHAFT MBB

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EP3655368

EUROKERA
Application Number
EP18739888A
Filing Date
Jul 19, 2018
Status
Patent Maintained As Amended
Sep 19, 2025
Publication Date
Oct 22, 2025
External Links
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