Swellable hydrogel-forming polymers having a low fraction of fines

US7553903B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ulrich Riegel · Landstuhl, DE
• Thomas Daniel · Waldsee, DE
• Matthias Weismantel · Bad Orb, DE
• Mark Elliott · Ludwigshafen, DE
• Dieter Hermeling · Haßloch, DE

Key dates

• Filing date: Dec 17, 2004
• Grant date: Jun 30, 2009
• Expiry date: Feb 13, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S524/916
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Swellable hydrogel-forming polymer comprising at least one hydrophilic polymer of dendritic structure, a process for preparing the swellable hydrogel-forming polymer and also its use in hygiene articles.