Process

US6986913B2 · kind B2 · utility

Assignee

• Dynal Biotech ASA · NO

Inventors

• Geir Fonnum · Lørenskog, NO
• Nini Kjus Hofsløkken · Oslo, NO
• Elin Aksnes · Oslo, NO
• Lars Kilaas · Trondheim, NO
• Arvid Berge · Trondheim, NO
• Per Stenstad · Trondheim, NO
• Ruth Schmid · Trondheim, NO
• Jon Olav Bjorgum · Trondheim, NO
• Tom-Nils Nilsen · Trondheim, NO

Key dates

• Filing date: Apr 28, 2004
• Grant date: Jan 17, 2006
• Expiry date: May 11, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A process for the preparation of coated polymer particles containing superparamagnetic crystals, said process comprising reacting porous, surface-functionalized, superparamagnetic crystal-containing polymer particles of diameter 0.5 to 1.8 μm with at least one polyisocyanate and at least one diol or at least one epoxide.