Process for the preparation of monodisperse polymer particles

US9309368B2 · kind B2 · utility

Assignee

• Life Technologies AS · NO

Inventors

• Arne Jørgedal · Storslett, NO
• Elin Aksnes · Oslo, NO
• Geir Fonnum · Lørenskog, NO
• Astrid Molteberg · Fetsund, NO
• Rolf Nordal · Lillestrøm, NO
• Henning Pettersen · Lillestrøm, NO
• Tollef Tårneby · Auli, NO
• Solveig Staale · Rasta, NO
• Ellen Weng · Oppegård, NO
• Finn Hansen · Vinstra, NO
• Silje NORDBØ · Oslo, NO
• Oddvar Aune · Trondheim, NO
• Arvid Berge · Trondheim, NO
• John BJØRGUM · Trondheim, NO
• Turid Ellingsen · Longyearbyen, NO
• John Ugelstad · Trondheim, NO

Key dates

• Filing date: Jan 10, 2014
• Grant date: Apr 12, 2016
• Expiry date: Jan 10, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2347/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.