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:
Oct. 08, 2019
Filed:
Aug. 03, 2017
Applicant:
Dennert Poraver Gmbh, Postbauer-Heng, DE;
Inventor:
Karl Weinberger, Bischofsmais, DE;
Assignee:
Dennert Poraver GmbH, Postbauer-Heng, DE;
Primary Examiner:
Int. Cl.
CPC ...
C03B 19/08 (2006.01); C03C 11/00 (2006.01); C03C 1/02 (2006.01); C03C 3/087 (2006.01);
U.S. Cl.
CPC ...
C03C 11/007 (2013.01); C03B 19/08 (2013.01); C03C 1/026 (2013.01); C03C 3/087 (2013.01);
Abstract
In a method for producing an expanded-glass granular material, starting materials containing glass powder, water glass, at least one blowing agent, and metakaolin, are mixed in order to form a homogeneous slurry. The slurry is granulated to form raw granular-material particles, which are foamed at a baking temperature between 780° C. and 950° C. in order to form expanded-glass granular-material particles. The expanded-glass granular material has a long-term water absorption of less than 25 volume percent when the expanded-glass granular material is exposed to water for a time period of 21 days.