GLASS AND METHOD FOR MANUFACTURING GLASS

    公开(公告)号:US20230135358A1

    公开(公告)日:2023-05-04

    申请号:US18049853

    申请日:2022-10-26

    申请人: AGC Inc.

    IPC分类号: C03C3/085 C03C3/062 H01L21/56

    摘要: Glass contains, in mol percentage on an oxide basis, SiO2: 35% to 60%, B2O3: 0.8% to 8%, Al2O3: 6% to 21%, and MgO: 17% to 44%. Additionally, (MgO/Al2O3)≥1 is satisfied, a measured Madelung constant m calculated by an expression (1A) is equal to or larger than 1.05, and a thermal expansion factor as a ratio of a measured value α of a linear thermal expansion coefficient to a calculated value αcal of a linear thermal expansion coefficient calculated from composition is equal to or smaller than 0.7. Herein, E is a measured value of a Young's modulus of the glass, Vp is an average atomic packing factor of the glass, and Gt is average bond dissociation energy of the glass.

    Process for the manufacture of an insulating product based on mineral fibres

    公开(公告)号:US11608292B2

    公开(公告)日:2023-03-21

    申请号:US16624175

    申请日:2018-06-04

    摘要: A process for the manufacture of an insulating product based on mineral fibres bonded by an organic binder, includes applying a sizing composition to the mineral fibres, forming an assembly of the mineral fibres, heating the assembly of mineral fibres until the sizing composition has cured, wherein the sizing composition includes the following constituents within the limits defined below, expressed as fractions by weight with respect to the total weight of the composition: from 80% to 98% of water, from 2% to 20% of water-soluble poly(furfuryl alcohol) and less than 0.5% of furfuryl alcohol, and the mineral fibres are fibres of aluminosilicate glass including aluminum oxide, Al2O3, in a fraction by weight of between 14% and 28%.