Water absorbing material

US8562862B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Veit Stegmann · Mannheim, DE
• Klemens Massonne · Bad Dürkheim, DE
• Franz Niklaus Windlin · Heidelberg, DE
• Reinhold Schwalm · Monsheim, DE
• Dieter Hermeling · Haßloch, DE
• Thomas Daniel · Waldsee, DE
• Stefan Bruhns · Mannheim, DE

Key dates

• Filing date: Sep 8, 2009
• Grant date: Oct 22, 2013
• Expiry date: Feb 5, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2300/14
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The present invention relates to a water-absorbing material obtainable by a process comprising the steps of A) treating a particulate, non-surface-crosslinked, water-absorbing polymer with a mixture comprising an aqueous solvent and at least one salt of a transition metal and B) irradiating the polymer treated according to A) with UV radiation, to a process for its production and to articles comprising the water-absorbing material.