Water-absorbent polymer structures based on renewable resources and method for producing said structures

US8703450B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Gunther Bub · Marl, DE
• Jurgen Mosler · Marl, DE
• Andreas Sabbagh · Dülmen, DE
• Franz-Felix Kuppinger · Marl, DE
• Franck Furno · Mülheim an der Ruhr, DE

Key dates

• Filing date: Feb 28, 2006
• Grant date: Apr 22, 2014
• Expiry date: Nov 26, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31855
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the production of polymers, such as water-absorbing polymer structures, by radical polymerization of acrylic acid, whereby the acrylic acid has been obtained by a synthesis process which comprises as a process step the splitting of an organic material by means of an enzyme or at least one component of an enzyme. The invention also relates to the water-absorbing polymers obtainable by this process, water-absorbing polymers which are based to at least about 25 wt % upon partially neutralized acrylic acid, a composite, a process for the production of a composite, the composite obtainable by this production, the use of acrylic acid in the production of polymers, preferably in the production of water-absorbing polymer structures, a device for the production of acrylic acid, and a process for the production of acrylic acid.