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公开(公告)号：US20220324751A1
公开(公告)日：2022-10-13
申请号：US17596887
申请日：2020-06-19
发明人： Aya NAKAMURA , Hidetoshi FUKUCHI , Junji KURACHI , Riku SAWAI , Takaharu MIYAZAKI , Yoshito NAWA , Kohji HATTORI
摘要： The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40≤SiO2≤60, 25≤B2O3≤45, 0≤Al2O3≤18, 0
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公开(公告)号：US20190144329A1
公开(公告)日：2019-05-16
申请号：US16097033
申请日：2016-11-01
摘要： A glass composition of the present disclosure includes, in wt %, 50≤SiO2≤54, 25≤B2O3≤30, 12≤Al2O3≤15, 0.5≤MgO≤1.9, 3.0≤CaO≤5.5, 0≤ZnO≤3.5, 0.1≤Li2O≤0.5, and 0.1≤Na2O≤0.3, and has a permittivity of less than 5.0 at a frequency of 1 MHz. The glass composition of the present disclosure has a low permittivity. The use of this glass composition can reduce the occurrence of devitrification and the inclusion of bubbles in glass fibers to be formed or in a shaped glass material to be formed even when the glass fibers have a small fiber diameter or the shaped glass material has a small thickness.
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公开(公告)号：US20220402811A1
公开(公告)日：2022-12-22
申请号：US17880202
申请日：2022-08-03
发明人： Aya NAKAMURA , Hidetoshi FUKUCHI , Junji KURACHI , Riku SAWAI , Takaharu MIYAZAKI , Yoshito NAWA , Kohji HATTORI
摘要： The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40≤SiO2≤60, 25≤B2O3≤45, 0
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公开(公告)号：US20220371945A1
公开(公告)日：2022-11-24
申请号：US17880199
申请日：2022-08-03
发明人： Aya NAKAMURA , Hidetoshi FUKUCHI , Junji KURACHI , Riku SAWAI , Takaharu MIYAZAKI , Yoshito NAWA , Kohji HATTORI
摘要： The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40≤SiO2≤60, 25≤B2O3≤45, 0
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公开(公告)号：US20200087196A1
公开(公告)日：2020-03-19
申请号：US16617402
申请日：2018-05-18
发明人： Yoshiyuki INAKA , Takaharu MIYAZAKI , Koji HAYASHI , Riku SAWAI , Yoshito NAWA , Daisuke NISHINAKA , Tomoki SEKIDA
摘要： A glass composition of the present disclosure includes, in wt %, 50≤SiO2≤56, 20≤B2O3≤30, 10≤Al2O3≤20, 3.5≤MgO+CaO≤10, and 0≤R2O≤1.0, further includes Fe2O3, and has a permittivity of less than 5.0 at a frequency of 1 MHz. R is at least one element selected from Li, Na, and K. The glass composition of the present disclosure is a low-permittivity glass composition with which the occurrence of fiber breakage during fiber forming can be reduced even when glass fibers to be formed have a small fiber diameter, and the occurrence of defects such as fiber breakage and fluffing during processing of the glass fibers can be reduced.
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