INEOS Styrolution K-Resin® KR40 Styrene Butadiene Copolymer (SBC)

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INEOS Styrolution K-Resin® KR40 Styrene Butadiene Copolymer (SBC)
Categories:	Polymer; Thermoplastic; Styrene-Butadiene; Styrene-Butadiene Copolymer, SBC
Material Notes:	K-Resin® KR40 alone or in blends, can be extruded into sheet and thermoformed on conventional equipment at high output rates. The favorable economics of K-Resin SBC, along with high productivity, have made possible tough clear disposable drinking cups, lids and other packaging applications. INEOS Styrolution has several grades of K-Resin SBC tailored for your sheet extrusion needs. Features: Combines clarity and toughness, Good Formability, High Surface Gloss. Applications: Thermoformed Blister Packs, Portion Packages, Cups and Lids Information provided by Styrolution.
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Physical Properties	Original Value	Comments

Density	1.01 g/cc	ISO 1183
Water Absorption at Saturation	0.070 %	ISO 62
Linear Mold Shrinkage	0.0030 - 0.010 cm/cm	ISO 294-4
Melt Flow	9.0 g/10 min @Load 5.00 kg, Temperature 200 °C	Volumetric; cm3/10 min; ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Shore D	55	ISO 868
Tensile Strength, Yield	15.0 MPa	ISO 527
Elongation at Break	300 %	ISO 527
Elongation at Yield	3.0 %	ISO 527
Tensile Modulus	750 MPa	ISO 527
Flexural Strength	17.0 MPa	ISO 178
Flexural Modulus	650 MPa	ISO 178
Charpy Impact Unnotched	NB @Temperature 23.0 °C	ISO 179/1eU
Charpy Impact, Notched	4.00 kJ/m² @Temperature 23.0 °C	ISO 179/1eA

Thermal Properties	Original Value	Comments
CTE, linear	60.0 - 90.0 µm/m-°C	ISO 11359
Deflection Temperature at 0.46 MPa (66 psi)	56.0 °C	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	46.0 °C	annealed 4 hours at 80°C; ISO 75
Vicat Softening Point	40.0 °C @Load 5.10 kg	VST/B/50. 50C/h; ISO 306
	61.0 °C @Load 1.02 kg	VST/A/50. 50C/h; ISO 306

Optical Properties	Original Value	Comments
Refractive Index	1.56	Sodium D Line; ISO 489
Transmission, Visible	92 % @Wavelength 550 nm	ASTM D1003

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