Crosslinked bead-form polymers

US6060558A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Podszun · Neunburg vorm Wald, DE
• Olaf Halle
• Werner Struver · Leverkusen, DE
• Robert Bloodworth · Neunburg vorm Wald, DE
• Holger Lutjens · Cologne, DE

Key dates

• Filing date: May 14, 1999
• Grant date: May 9, 2000
• Expiry date: May 14, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F4/32
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Suspension polymers having high swellability have low contents of soluble fractions if aliphatic peroxy esters are used as polymerization initiators.