公开(公告)号：US20200325066A1

公开(公告)日：2020-10-15

申请号：US16911878

申请日：2020-06-25

Applicant: AGC Inc.

Inventor： Suguru MURAYAMA ,  Kazuki KANEHARA ,  Eriko MAEDA

IPC: C03C21/00 ,  C03C3/087 ,  C03C3/078 ,  C03C3/095 ,  C03C3/097 ,  C03C3/093

Abstract: The present invention relates to a glass for chemical strengthening including, in mole percentage on an oxide basis: 45 to 75% of SiO2; 1 to 30% of Al2O3; 1 to 20% of Li2O; 0 to 5% of Y2O3; 0 to 5% of ZrO2; and 0 to 1% of TiO2, 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 Na2O and K2O of 0 to 10%, having a total content of B2O3 and P2O5 of 0 to 10%, and having a value M expressed by the following expression of 1,000 or more: M=−5×[SiO2]+121×[Al2O3]+50×[Li2O]−35×[Na2O]+32×[K2O]+85×[MgO]+54×[CaO]−41×[Sr O]−4×[P2O5]+218×[Y2O3]+436×[ZrO2]−1180, in which each of [SiO2], [Al2O3], [Li2O], [Na2O], [K2O], [MgO], [CaO], [SrO], [P2O5], [Y2O3], and [ZrO2] designates a content of each component in mole percentage on an oxide basis.

公开(公告)号：US20200031708A1

公开(公告)日：2020-01-30

申请号：US16590573

申请日：2019-10-02

Applicant: AGC Inc.

Inventor： Eriko MAEDA ,  Takato KAJIHARA ,  Kensuke NAGAI ,  Yutaka KUROIWA ,  Osamu KAGAYA ,  Ryuta SONODA ,  Hiroyuki HIJIYA

IPC: C03C3/108 ,  C03C3/105 ,  C03C3/093 ,  C03C3/087

Abstract: To provide a glass plate for a window material and a window comprising the glass plate, which are less likely to be a barrier to radio transmitting/receiving in use of a radio-utilizing apparatus, and a radio communication apparatus comprising the glass plate.A glass plate having a radio transmittance of at least 20% at a frequency of 100 GHz as calculated as 18 mm thickness, a window comprising the glass plate, and a radio communication apparatus comprising the glass plate.