Superabsorbent polymer composite particles and processes therefore

US9688781B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Axel Meyer · Frankfurt am Main, DE
• Torsten Lindner · Schwalbach am Taunus, DE
• Mattias Schmidt · Idstein, DE

Key dates

• Filing date: Jul 19, 2010
• Grant date: Jun 27, 2017
• Expiry date: Apr 10, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F8/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Superabsorbent material, comprising clay-crosslinked superabsorbent polymers, obtainable by polymerizing in a spray-stream, polymerizable compounds in the presence of a polymerization initiator system, and nano-sized or individual clay particles, which are all introduced into a vessel by a spraying step in the form of a said spray-stream thereof, whereby said clay particles crosslink said polymers during polymerization. The invention also relates to such a process and absorbent articles comprising such superabsorbent material.