Huntsman IROGRAN® A 78 E 4723 Polyester-Based TPU-Injection Extrusion Grade

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Huntsman IROGRAN® A 78 E 4723 Polyester-Based TPU-Injection Extrusion Grade
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane TPE; Polyurethane, TP; Thermoplastic Polyurethane, Elastomer, Polyester Grade
Material Notes:	Introduction: IROGRAN A 78 E 4723 is a thermoplastic polyester- polyurethane for injection moulding and extrusion applications. Additional characteristics of the product are flexibility and high mechanical resistance. Performance Features: High transparence Good melt flow High wear resistance High oil resistance Dynamically highly loadable Applications: For the production of spiral hoses, profiles hoses, jackets for high pressure hoses, technical parts. Information provided by Huntsman
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Physical Properties	Original Value	Comments

Density	1.19 g/cc	ASTM D792
Linear Mold Shrinkage	0.0080 in/in	ASTM D995
Melt Index of Compound	50 g/10 min @Load 21.6 kg, Temperature 190 °C	cm³/10 min

Mechanical Properties	Original Value	Comments
Hardness, Shore A	80	ASTM D2240
Hardness, Shore D	30	ASTM D2240
Tensile Strength at Break	45.0 MPa	DIN 53504
Elongation at Break	660 %	ASTM D412
100% Modulus	0.00410 GPa @Strain 100 %	DIN 53504
300% Modulus	0.0100 GPa @Strain 300 %	DIN 53504
Rebound	47 %	Bayshore; ASTM D2632
Tear Strength	510 pli	ASTM D624
Abrasion	25	[mm³]; ISO 4649
Compression Set	25 % @Temperature 23.0 °C, Time 252000 sec	ASTM D395
	38 % @Temperature 70.0 °C, Time 86400 sec	ASTM D395

Thermal Properties	Original Value	Comments
Melting Point	156 - 167 °C	Huntsman/TMA

Optical Properties	Original Value	Comments
Transmission, Visible	90 %	transparent; thickness not reported

Processing Properties	Original Value	Comments
Feed Temperature	25.0 - 40.0 °C	Extrusion
Front Barrel Temperature	165 - 190 °C	Extrusion
Nozzle Temperature	170 - 200 °C	Extrusion
	180 - 200 °C	Injection
Adapter Temperature	175 - 195 °C	Extrusion
Die Temperature	175 - 200 °C	Extrusion
Melt Temperature	170 - 195 °C	Injection
Mold Temperature	20.0 - 70.0 °C	Injection

Descriptive Properties
Heating Zone	175-195°C	Injection

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