Copolymer having polyether side chains and dicarboxylic acid derivative components

US8754150B2 · kind B2 · utility

Assignee

• CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

• Silke Flakus · Ebersberg, DE
• Klaus Lorenz · Zangberg, DE
• Gerhard Albrecht · Prien am Chiemsee, DE
• Helmut Mack · Ludwigshafen, DE
• Angelika Hartl · Emertsham, DE
• Martin Winklbauer · Burgkirchen an der Alz, DE
• Petra Wagner · Trostberg, DE
• Barbara Wimmer · Tacherting, DE
• Christian Scholz · Neustadt an der Weinstraße, DE

Key dates

• Filing date: Jan 12, 2009
• Grant date: Jun 17, 2014
• Expiry date: Mar 5, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2103/32
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a copolymer which can be used as a superplasticizer for hydraulic binders and comprises 30 to 47 mol % of a (meth)allyl alcohol polyether derivative structural unit and 53 to 70 mol % of a maleic acid derivative structural unit.