Covestro Desmoderm® KEN Granular Polyurethane

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Covestro Desmoderm® KEN Granular Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Desmoderm KEN Granular is a one-component polyester polyether urethane based on an aromatic diisocyanate. Uses: Desmoderm KEN Granular is used as the base component in the polyurethane coagulation process. Desmoderm KEN Granular is suitable for use in the manufacture of materials for shoe linings, shoe uppers, bags/luggage and clothing, as well as in the manufacture of nubuk products. Information provided by Covestro
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Physical Properties	Original Value	Comments

Viscosity	4000 - 20000 cP	Untempered, (20 % in dimethylformamide); DIN EN ISO 3219/A.3
	4000 - 60000 cP	Tempered, 5 h, 120°C, (20% in dimethylformamide); DIN EN ISO 3219/A.3

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	35.0 - 45.0 MPa	DIN 53504
	30.0 - 40.0 MPa @Temperature 70.0 °C	after 14 d hydrolysis (95 % rel. humidity); DIN 53504
Elongation at Break	400 - 500 %	DIN 53504
100% Modulus	0.00900 - 0.0100 GPa @Strain 100 %	DIN 53504

Thermal Properties	Original Value	Comments
Softening Point	190 - 200 °C

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PCOVEST0301 / 202084

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