GLASS COMPOSITION
    3.
    发明公开
    GLASS COMPOSITION 审中-公开

    公开(公告)号:US20230150864A1

    公开(公告)日:2023-05-18

    申请号:US17910296

    申请日:2021-03-08

    CPC classification number: C03C3/14 C03C3/247 C03C4/0021 A61K8/24 A61Q11/00

    Abstract: The present disclosure provides glass compositions that include from about 20 mol % to 45 mol % of B2O3; and from about 10 mol % to about 80 mol % of one or more glass components selected from the group consisting of CaO and MgO. The glass compositions also include less than 0.1 mol % CdO. The glass compositions may include one or more of Na2O, K2O, and a phosphate source, where the B2O3 and the phosphate source total about 60 mol % or less. The glass compositions may include a source of fluoride. The glass composition may be used to desensitize dentin. The present disclosure also provides dentin-desensitizing compositions, as well as methods and uses of the disclosed glass compositions.

    OPTICAL GLASS, OPTICAL PREFORM AND OPTICAL ELEMENT

    公开(公告)号:US20170369360A1

    公开(公告)日:2017-12-28

    申请号:US15631305

    申请日:2017-06-23

    Inventor: Bo KUANG

    Abstract: The invention provides an optical glass having excellent precision molding performance and having a refractive index of 1.46-1.53 and an Abbe number of 77-84. The optical glass comprises the following components based on cations in the molar percentage: P5+: 10-35%, Al3+: 10-35%, Ba2+: 1-20%, Sr2+: 10-35%, Ca2+: 1-20%, Gd3+: 0-10%, and Na+: 0-10%; the ratio of Sr2+/(Gd3++Na+) being 1-30; anions comprising F− and O2−, wherein the ratio F−/P5+ of F− content relative to the total molar percentage of anions to P5+ content relative to the total molar percentage of cations is 2.5 or more. The invention by rationally adjusting the proportions of the components, the molding performance of the optical glass is improved, and the problem that glass is broken and forms fogs during the molding process is solved, thereby the yield in manufacturing optical elements is improved.

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