Sabic 4935 Random Copolymer PP Resin

Physical Properties

• Density: Measured with injection – molded samples following ASTM D1505, it is 0.905 g/cc (0.0327 lb/in³), indicating its mass per unit volume.
• Linear Mold Shrinkage: At 0.019 cm/cm (0.019 in/in) for injection – molded samples (SABIC method), shows the dimensional change during cooling.
• Melt Flow: As per ISO 1133, under 2.16 kg (4.76 lb) load at 230 °C (446 °F), it’s 0.30 g/10 min, reflecting its flowability during processing.

Polymer Properties:

1. Base Material: Polypropylene (PP)
2. Key Features & Characteristics:
   
   • High Transparency and Clarity: This material offers superior clarity, providing a crystal-clear appearance for finished parts. 
   • Good Stiffness and Mechanical Properties: Despite being a random copolymer, it maintains a good balance of stiffness and strength, ensuring that parts are both rigid and durable.
   • Low Yellowing: The material is specially formulated to resist yellowing over time, helping to maintain the original look and quality of the product throughout its life cycle.
   • Good Processability: With a medium melt flow rate, this grade is easy to process on standard injection molding equipment, allowing for the production of parts with consistent quality.

Applications:

The combination of excellent transparency, good stiffness, and resistance to yellowing makes SABIC 4935 ideal for a wide range of clear, rigid products.

• Food containers and trays: Perfect for transparent food packaging where a clear, glossy look is needed, and the material’s stiffness provides structural integrity.
• Transparent caps and closures: Its clarity and dimensional stability make it suitable for caps and closures on bottles and other containers.
• Houseware items: Used for clear storage boxes, bottles, and other consumer goods where visibility and durability are desired.
• Cosmetic packaging: The high transparency and low yellowing make it a great choice for aesthetic cosmetic containers and lids.