Non-elastomeric polyurethane compositions

US6437073B1 · kind B1 · utility

Assignee

• AorTech Biomaterial PTY LTD. · AU

Inventors

• Pathiraja Arachchillage Gunatillake · Melbourne, AU
• Simon McCarthy · Portland, US
• Raju Adhikari · Melbourne, AU
• Gordon Francis Mejis · Melbourne, AU

Key dates

• Filing date: Sep 29, 2000
• Grant date: Aug 20, 2002
• Expiry date: Sep 29, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S623/926
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A non-elastomeric polyurethane composition which includes a first chain extender of the general formula (I) whereinR1, R2, R3, R4, R5, and R6 are the same or different and selected from an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical;R7 is a divalent linking group or an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical; andn is 0 or greater, and a second chain extender.