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Marlex® D139 Metallocene Linear Low-Density Polyethylene (mLLDPE)

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Marlex® D139 mLLDPE is an ethylene‑hexene copolymer film resin designed for blown film applications requiring superb clarity, excellent gloss, exceptional toughness and outstanding heat‑seal performance.

Produced using CPChem’s proprietary MarTECH® loop slurry process and advanced metallocene catalyst technology, Marlex® mLLDPE resins deliver tightly controlled molecular architecture and dependable resin quality, supporting predictable processing, excellent gauge control and consistent optical and sealing performance on blown film lines. 

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Product Information
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Contacts

Kyle Miller

Polyethylene Sales | US & Canada

Americas

832-813-4372

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Sammy Zuehlke

Polyethylene Sales | LATAM

Americas

832-813-4722

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Chevron Phillips Chemical Company LP

General

Americas

+1-832-813-4100

Norman Chua

China Country Manager / North Asia Polymers Manager

Asia

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Jack Wee

South Asia Polymers Sales Managers

Asia

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Chevron Phillips Chemicals Asia Pte Ltd

Asia Region Polymer sales

Asia

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Low Wah Chye

ASEAN Polymers Sales Manager

Asia

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Chevron Phillips Chemicals International N.V.

Europe, Middle East, Africa

+32-0-2-689-12-11

John Van Gansberghe

Polymers Sales

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+32-0-2-689-12-43

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Technical Specifications

Nominal Resin Properties

PropertyTypical ValueTest Method
Melt Index (190°C/2.16 kg)1.0 g/10 minASTM D1238
Density0.918 g/cm3ASTM D1505
SlipNone—
AntiblockNone—
Process AidYes—

Nominal Blown Film Properties (at 1 mil)1

PropertyTypical ValueTest Method
Haze4%ASTM D1003
Gloss (60°)130ASTM D2457
COF> 1ASTM D1894
Dart Impact630 g/milASTM D1709
Elmendorf Tear (MD)165 g/milASTM D1922
Elmendorf Tear (TD)440 g/milASTM D1992
Tensile Strength at Yield (MD)13 MPa (1,850 psi)ASTM D882
Tensile Strength at Yield (TD)10 MPa (1,450 psi)ASTM D882
Tensile Strength at Break (MD)74 MPa (10,800 psi)ASTM D882
Tensile Strength at Break (TD)57 MPa (8,200 psi)ASTM D882
Tensile Elongation at Break (MD)500%ASTM D882
Tensile Elongation at Break (TD)600%ASTM D882
1% Secant Modulus (MD)179 MPa (26,000 psi)ASTM D882
1% Secant Modulus (TD)208 MPa (30,200 psi)ASTM D882
Seal Initiation Temperature2104°C (219°F)ASTM F88

1 Produced on an LLDPE line at 2.5:1 BUR, 80 mil die gap, 8 in die, 250 lb/h, 400°F melt temperature.

2 Temperature at which 0.3 lb/in heat seal strength is achieved. 0.5 s dwell, 30 psi pressure, 11.8 in/min separation rate.

MD = Machine Direction  |  TD = Transverse Direction. Nominal properties reported are typical of the product but do not reflect normal testing variance and therefore should not be used for specification purposes. Values are rounded.

Key Characteristics of Marlex® 7104 LLDPE  

Engineered for sheet extrusion and geomembrane applications, Marlex® 7104 LLDPE is a high-molecular-weight ethylene-hexene copolymer that delivers the stress crack resistance, melt strength, and processability that converters and geomembrane manufacturers require for demanding flat-die and large-format applications.  

Key characteristics include:

  • Outstanding ESCR
  • Good melt strength
  • Excellent flexibility
  • Good processability
  • Good gloss
  • High coefficient of friction values

 

These LLDPE resin properties make Marlex® 7104 ideal for sheet extrusion and select geomembrane applications.  

mLLDPE Resin for High-Clarity Blown Film and Flexible Packaging

mLLDPE resins are engineered to deliver high clarity and strong, reliable seals in flexible packaging structures. Marlex® D139 PE is optimized for blown film applications and can serve as a seal layer in monolayer or coextruded films.

Flexible Applications — Blown Film

Non-exhaustive list of applications:

  • Seal layer in coextrusions
  • Heavy-duty packaging
  • Clarity packaging
  • Agricultural films

 

These applications benefit from the resin’s optical quality, puncture resistance and low seal-initiation temperature, enabling fast line speeds and strong seals in multilayer packaging.

Contact our polyethylene specialists for processing support

Why Choose CPChem for Metallocene Polyethylene

Polymer and Catalyst Innovation

Decades of polymer and catalyst innovation expertise deliver the metallocene technology and consistent resin performance that demanding flexible packaging applications require.

Proprietary MarTECH® Process

Produced with our proprietary MarTECH® loop slurry technology, Marlex® mLLDPE resins deliver the molecular precision required for superior optical quality and seal performance.

Comprehensive Film Technical Support

Our experienced technical experts partner with film converters to support resin qualification, optimize blown film processing, and troubleshoot demanding multilayer applications.

ISO 9001-Certified Global Supply

Our ISO 9001-certified manufacturing facilities and global footprint provide the consistent resin quality and dependable supply that flexible packaging converters depend on.

Commitment to Sustainability

Marlex® Anew™ Circular Polyethylene supports circular economy goals by enabling recycled content in demanding polyethylene applications.