Thermoplastic polyurethane blends

Details Thermoplastic polyurethane blends Thermoplastic polyurethane blends

C - Chemistry, Metallurgy

08

L

C08L 75/08 (2006.01) A61L 29/06 (2006.01) B29C 47/00 (2006.01) B29D 23/20 (2006.01)

Patent

CA 2104063

A thermoplastic polyurethane chain extended with an alkylenediol is blended with a thermoplastic polyurethane chain extended with an oxyalkylene glycol oligomer. The blend is extruded into a catheter tubing having sufficient initial stiffness for satisfactory insertion in a patient and a high degree of softening for safe positioning and long term catheterization procedures without the risk of vessel wall perforation.

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