mLLDPE Marlex D139 For Blown Film Applications

Marlex D139 polyethylene is a metallocene-catalyzed linear low-density polyethylene (mLLDPE) material produced by Chevron Phillips Chemical. The ethylene‑hexene copolymer resin is specifically engineered for blown film applications, delivering a unique combination of clarity, toughness, and heat-seal performance.

Property	Typical Value		Test Method
Melt Index (MFI)	1.0 g/10 min		ASTM D1238
Density	0.918 g/cm³		ASTM D1505
Haze		4%		ASTM D1003
Gloss (60°)		130		ASTM D2457
Tear Strength (MD/TD)		220/430g/mil		ASTM D1922
Dart Impact		600–700g/mil		ASTM D1709
Tensile Strength (Yield, MD/TD)		13/10MPa		ASTM D882
Elongation at Break (MD/TD)		500–600%		ASTM D882
Heat-Seal Initiation Temperature		102°C		ASTM F88

Main Applications of mLLDPE Marlex D139

mLLDPE Marlex D139 is widely used for producing high-performance films and packaging materials, including blown films, coextruded multi-layer heat-seal layers,heavy-duty packaging films,high-clarity packaging films, agricultural films and protective covers.

Performance Advantages

Outstanding Optical Properties. Marlex D139 provides clear, low-haze film with high surface gloss, ideal for applications where product visibility is critical.
Exceptional Toughness & Impact Resistance. Excellent tear and impact performance ensures durability in demanding packaging applications.
Superior Heat-Seal Performance. Moderate heat-seal initiation temperature with strong seal strength, suitable for multi-layer coextruded films.
Excellent Processability. Stable flow and consistent performance make it ideal for blown film extrusion.
Food Contact Compliance (Select Markets). Meets FDA regulations for food contact in certain regions (confirm with local supplier).

Safety & Storage

The material is stable under normal storage and processing conditions. Avoid prolonged exposure to high temperatures and strong oxidizers. Standard precautions include fire prevention and moisture control.