Method of making surface-coated water-absorbing polymer particles in a microfluidic device

US11000828B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Arsen Arsenov Simonyan · Schwalbach, DE
• Juliane Kamphus · Schwalbach, DE
• Sebastian Seiffert · Mainz, DE
• Axel Kai Tobias Habicht · Mainz, DE

Key dates

• Filing date: Apr 17, 2018
• Grant date: May 11, 2021
• Expiry date: Jul 21, 2038

Classification

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

Abstract

A method for making surface-coated water-absorbing polymer particles in a microfluidic device is provided. The microfluidic device includes a first microfluidic channel conveying precursor water-absorbing polymer particles, a second microfluidic channel conveying a first coating solution, a third microfluidic channel conveying water-absorbing polymer particles coated with the first coating solution, a fourth microfluidic channel conveying a first non aqueous liquid. An absorbent article includes the surface-coated water-absorbing polymer particles obtained via the method herein is also provided.