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    Thermally opacifiable glasses
    1.
    发明授权
    Thermally opacifiable glasses 失效
    耐热不透光眼镜

    公开(公告)号：US3920462A

    公开(公告)日：1975-11-18

    申请号：US43907774

    申请日：1974-02-04

    Applicant: CORNING GLASS WORKS

    Inventor： FLANNERY JAMES E ,  WEXELL DALE R

    IPC: C03C3/083 ,  C03C3/085 ,  C03C3/112 ,  C03C4/00 ,  C03C3/04 ,  C03C3/10

    CPC classification number: C03C3/083 ,  C03C3/085 ,  C03C3/112 ,  C03C4/005

    Abstract: This invention relates to thermally opacifiable glasses which exhibit uniformly dense opacity, that do not require the presence of lead or lithium, and contain as the primary opacifying phase a crystal selected from the group consisting of sodium molybdate, sodium tungstate, barium molybdate, barium tungstate, and mixtures thereof. The glasses consist essentially, by weight on the oxide basis, of about 64-80% SiO2, 2-12% Al2O3, 9-16% R2O, wherein R2O consists of 9-15% Na2O and 0-5% K2O, 1.2-4% RO3, wherein RO3 consists of 1.2-4% MoO3, or 1.6-4% WO3, or mixtures thereof in amounts equivalent to at least 1.2% MoO3, 0.5-3% F, and, preferably, up to 4% BaO.

    Abstract translation: 本发明涉及不透明度均匀的不透明度的热不透光玻璃，其不需要铅或锂的存在，并且含有选自钼酸钠，钨酸钠，钼酸钡，钨酸钡的晶体的主要不透明相 ，及其混合物。 玻璃基本上以氧化物重量计约64-80％SiO 2，2-12％Al 2 O 3，9-16％R 2 O，其中R 20由9-15％Na 2 O和0-5％K 2 O组成， 4％RO 3，其中RO 3由相当于至少1.2％MoO 3，0.5-3％F，优选至多4％BaO的量的1.2-4％MoO 3或1.6-4％WO 3或其混合物组成。

    Spontaneous opal glasses
    4.
    发明授权
    Spontaneous opal glasses 失效
    自发蛋白石眼镜

    公开(公告)号：US3912524A

    公开(公告)日：1975-10-14

    申请号：US43907874

    申请日：1974-02-04

    Applicant: CORNING GLASS WORKS

    Inventor： FLANNERY JAMES E ,  WEXELL DALE R

    IPC: C03C3/083 ,  C03C3/085 ,  C03C4/00 ,  C03C1/04 ,  C03C3/04 ,  C03C3/10

    CPC classification number: C03C3/083 ,  C03C3/085 ,  C03C4/005

    Abstract: This invention relates to the production of spontaneous opal glasses which are essentially free from boron and fluorine, that demonstrate uniformly dense opacity, and wherein the predominant opacifying phase is a crystal selected from the group consisting of sodium molybdate, sodium tungstate, barium molybdate, barium tungstate, and mixtures thereof. The glasses consist essentially, by weight on the oxide basis, of about 0.5-5% Li2O, 2-12% Al2O3, 5-16% R2O, wherein R2O consists of Na2O and/or K2O and wherein at least 5% Na2O is present in the absence of BaO, 65-80% SiO2, 1.24% RO3 wherein RO3 consists of 1.2-4% MoO3 or 1.6-4% WO3 or mixtures thereof at least equivalent to 1.2% MoO3, and, preferably, up to 10% BaO.

    Abstract translation: 本发明涉及生产基本上不含硼和氟的自发蛋白石玻璃，其表现出均匀致密的不透明度，并且其中主要的不透明相是选自钼酸钠，钨酸钠，钼酸钡，钡 钨酸盐及其混合物。 玻璃基本上以氧化物重量计约0.5-5％Li2O，2-12％Al2O3,5-16％R2O，其中R2O由Na2O和/或K2O组成，其中至少有5％的Na2O存在 在不存在BaO的情况下，65-80％SiO 2，1.2-4％RO 3，其中RO 3由1.2-4％MoO 3或1.6-4％WO 3或其混合物组成，至少相当于1.2％MoO 3，优选至多10 ％宝。

    Spontaneous fluoride opal glasses with thermally reversible opacity
    5.
    发明授权
    Spontaneous fluoride opal glasses with thermally reversible opacity 失效
    具有可靠反射能力的自然荧光玻璃

    公开(公告)号：US3667973A

    公开(公告)日：1972-06-06

    申请号：US3667973D

    申请日：1970-10-09

    Applicant: CORNING GLASS WORKS

    Inventor： FLANNERY JAMES E

    IPC: C03C3/118 ,  C03C4/00 ,  C03C3/04

    CPC classification number: C03C4/005 ,  C03C3/118 ,  C03C4/00 ,  C03C2204/04

    Abstract: THIS INVENTION RELATES TO THE MANUFACTURE OF SPONTANEOUS ALKALI METAL FLUORIDE OPAL GLASSES CONTAINING OPACITY DENSIFYING AGENTS AND EXHIBITING THERMALLY REVERSIBLE OPACITY; THAT IS, THEY MAY BE HEATED TO CLEARNESS AND COOLED TO OPACITY WITHOUT DEFORMATION OF THE GLASS BEING HEATED. OPERATIVE COMPOSITIONS INCLUDE GLASSES CONSISTING ESSENTIALLY, BY WEIGHT ON THE OXIDE BASIS OF 70-80% SIO2, 1-3% AL2O3, 7-14% B2O3, 1.5-4% LI2O, O-10% R2O WHEREIN R2O IS AT LEAST ONE ALKALI METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF K2O AND NA2O, 3-6% F, AND A TOTAL OF 1-3% OF AN OPACITY DENSIFYING AGENT SELECTED FROM THE GROUP CONSISTING OF MOO3, WO3, AND AS2O3.

    Opal glass compositions
    6.
    发明授权
    Opal glass compositions 失效
    OPAL玻璃组合物

    公开(公告)号：US3661601A

    公开(公告)日：1972-05-09

    申请号：US3661601D

    申请日：1969-03-21

    Applicant: CORNING GLASS WORKS

    Inventor： DUMBAUGH WILLIAM H ,  FLANNERY JAMES E ,  HARES GEORGE B

    IPC: C03C3/118 ,  C03C4/00 ,  C03C4/02 ,  C03C10/16 ,  C03C3/04 ,  C03C3/08

    CPC classification number: C03C8/06 ,  C03B17/02 ,  C03B23/025 ,  C03C1/04 ,  C03C3/091 ,  C03C3/115 ,  C03C4/00 ,  C03C4/005 ,  C03C17/02 ,  C03C2204/04 ,  C03C2218/13 ,  C03C2218/365

    Abstract: This invention relates to spontaneously opacifiable glasses containing fluorine and having as the principal opacifying phase an immiscible, or insoluble, fluorine containing glass; the opal is an alkali aluminosilicate glass with additions of divalent oxides, fluorine, and boric-oxide. These glasses are opacified by cooling the glass body from the melt to a temperature below about the opal liquidus thereof at a rate greater than about 2* C./minute so as to homogeneously separate an insoluble glassy opacifying phase.

    Abstract translation: 本发明涉及含氟的自发不透光玻璃，其主要不透明相是不混溶或不溶的含氟玻璃; 蛋白石是带有二价氧化物，氟和氧化硼的碱性铝硅酸盐玻璃。 通过将玻璃体从熔体中以大于约2℃/分钟的速率冷却至低于其蛋白石液相线的温度而使这些玻璃不透明，以均匀分离不溶性玻璃状不透明相。

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