Polyurethanes for osteoimplants

US8002843B2 · kind B2 · utility

Assignee

• Warsaw Orthopedic, Inc.

Inventors

• David Knaack · Summit, US
• John Winterbottom · Howell, US
• David R. Kaes · Toms River, US
• Todd M. Boyce · Aberdeen, US
• Lawrence A. Shimp · Morganville, US

Key dates

• Filing date: Feb 4, 2004
• Grant date: Aug 23, 2011
• Expiry date: Feb 13, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2230/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Biological-based polyurethanes and methods of making the same. The polyurethanes are formed by reacting a biodegradable polyisocyanate (such as lysine diisocyanate) with an optionally hydroxylated biomolecule to form polyurethane. The polymers formed may be combined with ceramic and/or bone particles to form a composite, which may be used as an osteoimplant.