Recyclable Multilayer Polyester Films

Executive Summary

Plastic films are used extensively for packaging applications. Increasingly there are consumer, company and government demands for more recyclable products to minimize landfill waste. However, often recyclable products have poor mechanical or barrier properties and are not suitable for certain applications such as food packaging. Researchers at Michigan State University have recently developed a film technology that offers good barrier properties compared to polyethylene terephthalate (PET) and is amenable to both chemical and physical recycling.

Description of the Technology

The technology is multilayer film comprising mostly polyester that contains a modified oxygen barrier. The extruded film has excellent transmission rates  as well as good moisture barrier. The coextruded cast films are chemically and mechancially recyclable.

Benefits

• Biodegradable
• Chemcial and mechacially recycalable
• Excellent oxygen and water vapor barrier

Applications

• Packaging films for food
• Flexible or rigid packaging

Patent Status

• Patent pending

Licensing Rights

Full licensing rights available

Inventors

Dr. Muhammad Rabnawaz, Dr. Mohamed Abdelwahab, Rishi Sharma

TECH ID

TEC2024-0058, TEC2024-0059, TEC2024-0076