Method for producing super absorber particles

US12084527B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Thomas Pfeiffer · Kumhausen, DE
• Matthias Weismantel · Bad Orb, DE
• Jürgen Schröder · Ludwigshafen, DE
• Karl J. Possemiers · Schilde, BE
• Marco Krueger · Mannheim, DE
• Ruediger Funk · Ludwigshafen, DE

Key dates

• Filing date: Feb 11, 2019
• Grant date: Sep 10, 2024
• Expiry date: Dec 10, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2333/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for producing superabsorbent particles, comprising drying of a polymer gel, removal of incompletely dried polymer particles, comminution of the polymer particles removed, recycling of the comminuted polymer particles and storage of the recycled polymer particles.