Polymer-modified building material dry-mixes

US8349960B2 · kind B2 · utility

Assignee

• CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

• Peter Gaeberlein · Magdeburg, DE
• Michael Schinabeck · Garching bei München, DE
• Gregor Herth · Trostberg, DE
• Stefan Friedrich · San Gabriel, US
• Werner Stohr · Augsburg, DE
• Alexander Ehle · Kaufering, DE
• Kornelia Kratzer · Prettelshofen, DE
• Markus Streicher · Friedberg, DE
• Volker Schwarz · Waiblingen, DE
• Astrid Kramer · Kissing, DE

Key dates

• Filing date: Apr 28, 2008
• Grant date: Jan 8, 2013
• Expiry date: Apr 24, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to polymer-modified cement-containing building material dry mixes which contain a redispersible polymer powder, water retention agents based on polysaccharide structures, a calcium-containing setting accelerator and a superabsorbent copolymer.