Hydrophilic polymeric particles and methods for making and using same

US11572427B2 · kind B2 · utility

Assignees

• Life Technologies Corporation · US
• Life Technologies AS · NO

Inventors

• Geir Fonnum · Lørenskog, NO
• Grete Irene Modahl · Oslo, NO
• Nini Hofsloekken Kjus · Oslo, NO
• Astrid Evenroed Molteberg · Fetsund, NO
• Diem Tran · Lillestrøm, NO
• Jo Aaserud · Lillestrøm, NO
• M. Talha Gokmen · Oslo, NO
• Steven M. Menchen · Fremont, US
• Carl Fuller · Berkeley Heights, US
• Luisa Andruzzi · Beverly, US
• Wolfgang Hinz · Killingworth, US

Key dates

• Filing date: Feb 2, 2021
• Grant date: Feb 7, 2023
• Expiry date: Aug 6, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method of forming a particle includes, in a disperse phase within an aqueous suspension, polymerizing a plurality of mer units of a hydrophilic monomer having a hydrophobic protection group, thereby forming a polymeric particle including a plurality of the hydrophobic protection groups. The method further includes converting the polymeric particle to a hydrophilic particle.