The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2023
Filed:
Jun. 25, 2020
Agc Inc., Chiyoda-ku, JP;
AGC Inc., Chiyoda-ku, JP;
Abstract
The present invention relates to a glass for chemical strengthening including, in mole percentage on an oxide basis: 45 to 75% of SiO; 1 to 30% of AlO; 1 to 20% of LiO; 0 to 5% of YO; 0 to 5% of ZrO; and 0 to 1% of TiO, having a total content of one or more kinds of MgO, CaO, SrO, BaO and ZnO of 1 to 20%, having a total content of NaO and KO of 0 to 10%, having a total content of BOand POof 0 to 10%, and having a value M expressed by the following expression of 1,000 or more: M=−5×[SiO]+121×[AlO]+50×[LiO]−35×[NaO]+32×[KO]+85×[MgO]+54×[CaO]−41×[Sr O]−4×[PO]+218×[YO]+436×[ZrO]−1180, in which each of [SiO], [AlO], [LiO], [NaO], [KO], [MgO], [CaO], [SrO], [PO], [YO], and [ZrO] designates a content of each component in mole percentage on an oxide basis.