公开(公告)号：US20220220021A1

公开(公告)日：2022-07-14

申请号：US17708219

申请日：2022-03-30

Applicant: Schott AG

Inventor： Holger Wegener ,  Simon Striepe ,  Olaf Claussen ,  Marta Krzyzak ,  Michael Hahn ,  Karin Naumann ,  Silke Knoche ,  Jörg Witte

IPC: C03C3/091 ,  C03C1/00 ,  C03C3/085

Abstract: A glass article is composed of an aluminosilicate glass with at least one halogen with refining action in an amount ranging from 500 ppm to 8000 ppm and an Sn content of less than 500 ppm. The glass has less than 100 ppm As and less than 100 ppm Sb and the glass article has a thickness of less than 250 μm.

公开(公告)号：US20220177353A1

公开(公告)日：2022-06-09

申请号：US17542005

申请日：2021-12-03

Applicant: Schott AG

Inventor： Susanne Krüger ,  Oliver Hochrein ,  Malte Grimm ,  Rainer Erwin Eichholz ,  Brigitte Woelzlein ,  Karin Naumann

IPC: C03C3/118 ,  C03C4/00 ,  C03C21/00 ,  C03B27/00

Abstract: A glass article is composed of a glass having a demixing factor in respect of its hydrolytic resistance in a range from 0.10 to 1.65.

公开(公告)号：US20190308899A1

公开(公告)日：2019-10-10

申请号：US16379332

申请日：2019-04-09

Applicant: Schott AG

Inventor： Stefan Schmitt ,  Wolfgang Schmidbauer ,  Christian Müller ,  Frank-Thomas Lentes ,  Michael Hahn ,  Reinhard Männl ,  Hildegard Römer ,  Karin Naumann

IPC: C03B5/225 ,  C03B5/235

Abstract: The present invention relates generally to a process for producing glass products and to an apparatus suitable for the purpose. In the process, a melting apparatus is provided with a melting tank for producing a glass melt from glass raw materials and a top furnace. Part of the surface of the melting region of the melting apparatus is covered with the glass raw materials and at least a small portion of the surface of the melting region is uncovered. In addition, energy is introduced in such a way that a vertical temperature difference can be established, such that the temperature of the glass melt at the base is greater than the temperature of the atmosphere in the top furnace.

公开(公告)号：US09676643B2

公开(公告)日：2017-06-13

申请号：US14463662

申请日：2014-08-20

Applicant: SCHOTT AG

Inventor： Frank-Thomas Lentes ,  Karin Naumann ,  Ulrich Schiffner ,  Friedrich Siebers ,  Christian Mueller ,  Klaus Schoenberger ,  Evelin Weiss

IPC: C03B5/225 ,  C03C1/00 ,  C03C10/00 ,  C03C3/085 ,  C03C3/087

CPC classification number: C03B5/225 ,  C03C1/004 ,  C03C3/085 ,  C03C3/087 ,  C03C10/0018 ,  C03C10/0027 ,  C03C10/0036 ,  C03C2203/10 ,  C03C2214/20

Abstract: A method for producing bubble-free glasses is provided, in which a glass mixture that is arsenic-free, antimony-free and tin-free with the exception of any unavoidable raw material impurities and at least one sulfate compound as a refining agent are used. The glass mixture and refining agent are melted and primarily refined in a first region of a melting tank, an average melting temperature (T1) is set at T1>1580° C. and an average melt residence time (t1) is set at t1>2 hours. A secondary refinement is carried out in a second region, an average melting temperature (T2) is set at T2>1660° C. and an average melt residence time (t2) is set at t2>1 hour, and the proportion of the SO3 resulting from decomposition of the sulfate is reduced to less than 0.002 wt. %.

公开(公告)号：US20150360990A1

公开(公告)日：2015-12-17

申请号：US14739780

申请日：2015-06-15

Applicant: SCHOTT AG

Inventor： Frank-Thomas Lentes ,  Karin Naumann ,  Monika Buerkner-Brigaldino ,  Norbert Greulich-Hickmann ,  Jan Philipp Steigleder

IPC: C03B5/187 ,  B01F7/00

CPC classification number: C03B5/187 ,  B01F7/00125 ,  B01F7/0025 ,  B01F7/00641 ,  B01F7/00908 ,  B01F13/1016 ,  B01F15/00876 ,  C03B5/20 ,  Y02P40/57

Abstract: Methods for producing glass articles from glass melts are provided that include continuously introducing the glass melt into a stirrer vessel, stirring the glass melt in the stirrer vessel by at least one blade stirrer, continuously discharging the glass melt from the stirrer vessel, and shaping the glass melt to obtain the glass article. In some embodiments, the stirring is sufficient to draw the glass melt located at a surface of the stirrer vessel into the stirrer vessel so that a formation of a surface layer of the glass melt with a different composition from the composition of the glass melt introduced is prevented or at least minimized. In other embodiments, the stirring is sufficient so that the glass melt which is located at a surface in the stirrer vessel is not drawn into the stirrer vessel or is drawn in only insubstantially.

Abstract translation: 提供了从玻璃熔体制备玻璃制品的方法，包括将玻璃熔体连续引入搅拌器中，通过至少一个叶片搅拌器搅拌搅拌器容器中的玻璃熔体，从搅拌器中连续排出玻璃熔体， 玻璃熔化得到玻璃制品。 在一些实施例中，搅拌足以将位于搅拌器容器表面的玻璃熔体拉入搅拌器容器中，使得与引入的玻璃熔体的组成不同组成的玻璃熔体的表面层的形成是由 防止或至少最小化。 在其他实施方案中，搅拌是足够的，使得位于搅拌器容器中的表面处的玻璃熔体不被拉入搅拌器或仅在非实质中被拉制。