Chevron Phillips Marlex 5335 LDPE Resin

Physical Properties

• Density: Tested per ASTM D1505, the density is 0.926 g/cc (0.0334 lb/in³), enhancing processability in blown film applications like shopping bags.
• Water Vapor Transmission: Determined via ASTM F1249, the water vapor transmission rate is 15.5 g/m²/day (0.998 g/100 in²/day), balancing moisture and gas permeability for general packaging.
• Oxygen Transmission Rate: Tested per ASTM D3985, the oxygen transmission rate is 6000 cc/m²/day (386 cc/100 in²/day), suitable for non-perishable food packaging films.
• Melt Flow: As per ASTM D1238, at 190 °C (374 °F) under 2.16 kg (4.76 lb), the melt flow rate is 2.0 g/10 min, allowing stable extrusion in standard blown film lines.
• Antiblock Level: The antiblock  additive concentrations is 2750 ppm.
• Slip Level:The slip additive concentrations is 750 ppm.

Polymer Properties:

• Base Material: Low Density Polyethylene (LDPE)
• Key Characteristics:
  
  • Excellent processability: The resin’s melt flow properties allow for easy and efficient processing in both blow molding and injection molding equipment, leading to high production rates and reduced energy consumption.
  • Good stress crack resistance: This property is crucial for applications that involve exposure to chemicals or repeated stress, such as detergents or household cleaners. 
  • High clarity and gloss: The resin can produce parts with good optical properties, making it suitable for applications where product visibility is important.
  • Low odor and taste: This is a critical feature for food and beverage packaging, where the resin must not impart any undesirable taste or smell to the contents.

Applications:

Given these properties, Marlex® 5335 is primarily used in the following applications:

• Squeeze Bottles: Its flexibility and good stress crack resistance make it ideal for squeeze bottles used for sauces, condiments, and personal care products.
• Caps and Closures: The resin is used to produce flexible caps and closures that require a good seal and easy application.
• Pharmaceutical and Cosmetic Containers: The resin’s clean characteristics and good stress crack resistance make it suitable for pharmaceutical and cosmetic packaging.
• Industrial Parts: It’s also utilized for various industrial components where flexibility and chemical resistance are necessary.
• Injection Molded Articles: The resin’s processing characteristics are well-suited for producing a variety of injection-molded products.