DSM Biomedical Elasthane™ 75D Thermoplastic Polyether Polyurethane (TPU)

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DSM Biomedical Elasthane™ 75D Thermoplastic Polyether Polyurethane (TPU)
Categories:	Polymer; Thermoplastic; Polyurethane, TP; Thermoplastic Polyurethane (TPUR), Polyether Grade
Material Notes:	A high tensile strength, aromatic biomedical polymer with an exceptional combination of mechanical properties plus biological compatibility Elasthane™ TPU exhibits outstanding hydrolytic stability. Widely Used This polyether-based polymer is designed to support long-term implantation and has been used in many commercially available medical devices including cardiovascular, neurostimulation and orthopedic implants. Tailor Made Elasthane™ TPU can be enhanced with SME® technology to incorporate end groups that can address the needs of specific device applications. This eliminates the need for additional surface processing steps after the device component is fabricated. Summary of Product Benefits Excellent mechanical properties and abrasion resistance Hydrolytically stable Biocompatibile Adaptable with SME® technology Established FDA Master File Information provided by DSM Biomedical.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.19 g/cc	1.19 g/cc	ASTM D792
Linear Mold Shrinkage	0.016 cm/cm	0.016 in/in	4 inch disk; ASTM D955
Linear Mold Shrinkage, Transverse	0.0050 - 0.0080 cm/cm	0.0050 - 0.0080 in/in	Flame Bar; ASTM D955
Melt Flow	37 g/10 min @Load 5.00 kg, Temperature 224 °C	37 g/10 min @Load 11.0 lb, Temperature 435 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	75	75	ASTM D2240
Tensile Strength, Ultimate	60.22 MPa	8734 psi	ASTM D1708
Elongation at Break	292 %	292 %	ASTM D1708
Flexural Strength	75.2 MPa	10900 psi	at 5% deflection; ASTM D790
Flexural Modulus, 1% Secant	1990 MPa	289000 psi	ASTM D790

Electrical Properties	Metric	English	Comments
Dielectric Constant	3.7 @Frequency 60 Hz	3.7 @Frequency 60 Hz	ASTM D150
Dielectric Strength	15.4 kV/mm	392 kV/in	ASTM D149

Thermal Properties	Metric	English	Comments
CTE, linear	86.4 µm/m-°C @Temperature 20.0 °C	48.0 µin/in-°F @Temperature 68.0 °F	ASTM E-831
Vicat Softening Point	61.0 °C	142 °F	ASTM D1525

Processing Properties	Metric	English	Comments
Processing Temperature	194 - 221 °C	381 - 430 °F	Optimum Extrusion Conditions

Descriptive Properties
Color	Clear to Amber Pellets
Cytotoxicity	Non-cytotoxic
Hemocompatibility	Non-hemolytic

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