Chevron Phillips Marlex 4571 LDPE Reain

Chevron Phillips Marlex 4571 is a low density polyethylene (LDPE) for cast film, enabling high-speed extrusion for industrial, textile, and agricultural use.

Physical Properties

  • Density: Measured per ASTM D-1505, the density is 0.924 g/cc (0.0334 lb/in³), influencing material weight and formability.
  • Water Vapor Transmission: For 1.25 mil blown film (ASTM F-1249), the rate is 13.0 g/m²/day (0.837 g/100 in²/day), indicating moderate moisture barrier.
  • Oxygen Transmission Rate: At 1.25 mil blown film (ASTM D-3985), the rate is 6100 cc/m²/day (393 cc/100 in²/day), suitable for non-hermetic packaging.
  • Melt Index of Compound: As per ASTM D-1238, it is 4.1 g/10 min at 190°C under 2.16 kg, ensuring good processability for extrusion.
  • Antiblock/Slip Levels: Both at 0.00 ppm, meaning no additives are included to prevent sticking or reduce friction.

Polymer Properties:

  • Base Material: Low Density Polyethylene (LDPE)
  • Modification Features:
    • Tailored for cast film with high-speed extrusion capability to meet industrial throughput.
    • Provides dimensional stability and consistent film quality at high speeds.

Applications:

  1. Personal Care and Hygiene Films:
    • Marlex® 4571 is exceptionally well-suited for the production of films used in the personal care market, such as the backsheet for diapers, adult incontinence products, and feminine hygiene products.
  2. General Purpose Packaging and Lamination Films:
    • The balance of optical and physical properties makes Marlex® 4571 a versatile choice for a variety of general-purpose packaging applications, particularly as a sealant layer or component in a multi-layer laminated structure.

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