SPB681/59 is a low density polyethylene produced under high-pressure technology. This grade is specifically designed for film extrusion applications. Films obtained with this product exhibit excellent "draw down," displaying good sealability and adhesion on paper substrates, while maintaining low gel content. The minimum carbon biobased content of this grade is 95%, determined according to ASTM D6866.

Polymer Name: Low Density Polyethylene (LDPE)

Processing Methods: Blown Film Extrusion, Cast Film Extrusion, Extrusion, Film Extrusion

Additives Included: Anti-Blocking Agent, Slip Agent

Melt Flow Index: 3.8 - 3.8 g/10 min

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Properties

Typical Properties
ValueUnitsTest Method / Conditions
C14 Contentmin. 95%ASTM D 6866
Blown Film Properties
ValueUnitsTest Method / Conditions
Tensile Strength (at Break, MD)23MPaASTM D882
Tensile Strength (at Break, TD)14MPaASTM D882
Elongation (at Break, MD)370%ASTM D882
Elongation (at Break, TD)875%ASTM D882
Dart Drop Impact Strength75g/F50ASTM D1709
Elmendorf Tear Strength (MD)685gFASTM D1922
Elmendorf Tear Strength (TD)265gFASTM D1922
Haze7%ASTM D1003
Control Properties
ValueUnitsTest Method / Conditions
Melt Flow Rate (at 190°C, 2.16kg)3.8g/10 minASTM D1238
Density0.922g/cm³ASTM D1505
Note

Blown Film Properties:

  • 40 μm thickness film in a 75mm screw diameter extruder with blow up ratio of 2.2:1. (MD: Machine Direction; TD: Transversal Direction)

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