K-Resin KR40
K-Resin® KR40 is an improved extrusion grade SBC designed specifically for superior performance in blends with general purpose polystyrene. K-Resin® KR40 offers excellent toughness and ductility.
Key Features
- Greater Polystyrene Acceptance
- Combines Clarity and Toughness
- Good Formability
- High Surface Gloss
Applications
- Baby Food Containers
- Yogurt Cups
- Rigid Daily Food Packaging
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Grade Version
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Properties
Properties of K-Resin KR40
Property, Test Condition Standard Unit Values Rheological Properties Melt Flow Rate, 200 °C/5 kg ASTM D 1238 g/10 min 10 Mechanical Properties Instrumented Dart Impact (total energy) ASTM D 3763 in-lbs 380 Tensile Stress at Yield, 23 °C ASTM D 638 psi 2240 Tensile Strain at Break, 23 °C ASTM D 638 % 339 Flexural Strength, 23 °C ASTM D 790 psi 3535 Flexural Modulus, 23 °C ASTM D 790 psi x 10³ 123 Hardness, Shore D ASTM D 2240 - 60 Tensile Modulus ASTM D 638 psi x 10³ 110 Nominal Strain at Break, 23 °C - % 320 Thermal Properties Vicat Softening Temperature, B/1 ( 120 °C/h, 10N) ASTM D 1525 °F 155 DTUL @ 264 psi - Annealed ASTM D 648 °F 117 Optical Properties Light Transmission at 550 nm ASTM D 1003 % 92 Haze ASTM D 1003 % 2 Other Properties Density (ASTM ) ASTM D 792 g/cm³ 1,02 Oxygen Transmission Rate (23 °C/0% RH) ASTM D 3985 cc/100in²/day 275 Water Vapor Transmission Rate (WVTR) (23 °C/0% to 85% RH gradient) ASTM F1249-06 g/100in²/day 3,5 Typical values for uncolored products
Please note that all processing data stated are only indicative and may vary depending on the individual processing complexities.
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Processing
Processing of K-Resin KR40
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Safety Data Sheet