Superabsorber mixtures

US11491463B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Stephan Bauer · Ostercappeln, DE
• Katrin Baumann · Mannheim, DE
• Markus Toennessen · Ludwigshafen, DE
• Christophe Bauduin · Ludwigshafen, DE
• Markus Christian Biel · Mannheim, DE
• Thomas Daniel · Waldsee, DE

Key dates

• Filing date: Jan 2, 2019
• Grant date: Nov 8, 2022
• Expiry date: Nov 8, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2433/08
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Superabsorbent mixtures M comprising at least 70% by weight of superabsorbent A having a liquid absorption of 20 g/g (T20) of less than 300 s and/or a volumetric liquid absorption under pressure 0.3 psi (2.07 kPa) (VAUL) with a τ value of less than 400 s, and at least 5% by weight of superabsorbent B having a centrifuge retention capacity (CRC) of at least 30 g/g.