Degradation of superabsorbent fibers via oxidative degradation

US12152112B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Juliane Kamphus · Schwalbach, DE
• Bruno Johannes Ehrnsperger · Bad Soden, DE
• Arsen Arsenov Simonyan · Schwalbach, DE
• Natasa DIJAKOV · Schwalbach am Taunus, DE
• Saskia Kraemer · Hessen, DE
• Jacqueline Besinaiz Thomas · Oregonia, US
• Yiping Sun · Mason, US

Key dates

• Filing date: Feb 3, 2022
• Grant date: Nov 26, 2024
• Expiry date: Apr 15, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/62
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A method for degrading crosslinked superabsorbent fibers (SAF) into soluble polymers is disclosed. Degradation is achieved with an oxidative water-soluble salt comprising at least one cation and at least one anion.