IROGRAN® A 85 P 4441

Polyether-based Thermoplastic Polyurethane

Product Description:

IROGRAN® A 85 P 4441 is a polyether-based Thermoplastic Polyurethane (TPU) for extrusion and injection molding applications. Key features are excellent hydrolysis and microbial resistance, excellent wear performance, robust processing and matte surface.

MAIN APPLICATIONS:

Thick wall technical parts, thin wall extrusion profiles, thick wall extrusion profiles, cable jacketing and film and sheet.

Details

At Jan.2016: US / EAIME / APAC MTS / MTS / MTS finished 08.10.2016

Properties	Key	NORM	Value	Unit
Hardness (after 3 sec.)	M	ASTM D 2240	87	Shore A
Hardness (after 3 sec.)	M	ASTM D 2240	39	Shore D
Density	M	ASTM D 792	1.11	g/cm³
Tensile strength	E	ASTM D 412	6960	psi
Elongation @ break	E	ASTM D 412	580	%
Tensile stress @ 100% elongation	E	ASTM D 412	980	psi
Tensile stress @ 300% elongation	E	ASTM D 412	1560	psi
Tear strength	E	ASTM D 624	480	pli
Flexural modulus @ 23°C	M	ASTM D 790	7580	psi
Flexural modulus @ -29°C	M	ASTM D 790	15270	psi
Abrasion	M	ISO 4649	48	mm³
Bayshore rebound resilience	M	ASTM D 2632	44	%
Compression set at 22h @ 23°C	M	ASTM D 395	28	%
Compression set at 22h @ 70°C	M	ASTM D 395	83	%
Mold shrinkage	M	ASTM D 955	0.5	%
Softening range low	E	Huntsman TMA	155	°C
Softening range high	E	Huntsman TMA	169	°C
Glass transition temperature (DSC)	E	ASTM D 3418	-41	°C
Vicat softening point VST/A120	M	ASTM D 1525	83	°C

M = Injection molded parts to meet DIN & ASTM requirements. Parts at room temperature aged prior to testing.
E = Extruded film cut to ASTM requirements. Parts at room temperature aged prior to testing.

Processing Parameters

Melt Volume Rate [190°C / 21,6kg] ISO 1133-1 = 65 cm³/10min

Processing Parameter:	Extrusion
Temperature Profile	°C
Feed Zone:	25 - 40
Barrel:	175 - 185
Die Head:	185 - 195
Nozzle:	170 - 200

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