Production of polymers by spray polymerization

US8268942B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Dennis Lösch · Altrip, DE
• Volker Seidl · Mannheim, DE
• Uwe Stueven · Bad Soden, DE

Key dates

• Filing date: Jan 14, 2006
• Grant date: Sep 18, 2012
• Expiry date: Feb 24, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2810/40
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Water-absorbing polymeric particles are produced by spray polymerization of a monomer solution in a process wherein the monomer solution is spray dispensed and at least one crosslinker accumulates in the region of the droplet surface, and are useful in hygiene articles.