The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2015
Filed:
Mar. 04, 2010
Klaus Schoenberger, Mainz, DE;
Friedrich Siebers, Nierstein, DE;
Ioannis Kosmas, Stadecken-Elsheim, DE;
Matthias Stubenrauch, Woerrstadt, DE;
Horst Blei, Mainz-Kostheim, DE;
Reiner Best, Albig, DE;
Eckhart Doering, Dolgesheim, DE;
Udo Jakob, Albig, DE;
Klaus Schoenberger, Mainz, DE;
Friedrich Siebers, Nierstein, DE;
Ioannis Kosmas, Stadecken-Elsheim, DE;
Matthias Stubenrauch, Woerrstadt, DE;
Horst Blei, Mainz-Kostheim, DE;
Reiner Best, Albig, DE;
Eckhart Doering, Dolgesheim, DE;
Udo Jakob, Albig, DE;
SCHOTT AG, Mainz, DE;
Abstract
The method of environmentally friendly melting and refining a glass melt of a crystallizable glass, which is used for making a lithium aluminum silicate (LAS) glass ceramic, includes the steps of providing a glass batch with a main batch composition within a lithium aluminum silicate (LAS) glass system, in which 0.1-<0.6% by weight of tin oxide has been added as main refining agent, but which does not contain arsenic oxide and/or antimony oxide as refining agent, formulating a raw material mixture for the glass batch, so that less than 40% by weight of the raw material mixture is quartz sand and then refining a glass melt formed from the glass batch at temperatures of at least 1600° C.