Method for sealing natural stones

US7968202B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Edwin Nun · Billerbeck, DE
• Volker Hennige · Ulmen, DE
• Uwe Paulmann · Thedinghausen, DE
• Hannelore Armoneit · Recklinghausen, DE
• Sigrid Banken · Dorsten, DE
• Marie-Theres Wilkes · Dorsten, DE
• Norbert Kern · Kandel, DE
• Christian Herkt-Bruns · Munster, DE
• Thomas Schrief · Haltern am See, DE
• Eckart Berendes · Marl, DE

Key dates

• Filing date: Jun 1, 2005
• Grant date: Jun 28, 2011
• Expiry date: Jul 24, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/4935
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a sealed natural cut stone, the pores of which are permeable to water vapor but are impermeable to aqueous liquids, and a method for the production thereof and the use of such natural cut stones.