Dow develops film processing tech to remove fluoropolymer PE from packaging

Dow has launched DowSil 5-1050 Polymer Processing Aid (PPA) targeting the demand for film packaging without fluoropolymer-based PPAs. The technology is said to provide melt fracture mitigation and die lip buildup suppression in linear low-density PE grades, leading to high-quality films.

“Historically, fluoropolymer-containing PPAs worked efficiently for most film applications and other processes,” says Mubashir Ansari, technical service and development scientist at Dow.

“Now that those are being phased out, converters are looking for effective alternatives. With DowSil 5-1050 PPA, we’ve applied our technical experience in silicone and PE materials to offer a regulatory-compliant option that doesn’t compromise on performance.”

Dow serves customers in “high-growth” markets including packaging and consumer applications. The materials science giant has decades of experience in compounding, extrusion, and the integration of silicone additives into plastics.

Dow says the solution is engineered for a wide range of film applications and that it contains a silicone additive in a PE carrier. It is supplied as a masterbatch, facilitating its inclusion into existing extrusion processes. The technology has reportedly been demonstrated to be effective at an industrial scale. 

Pairing innovations and global supply

Dow’s technology offers reduced melt fracture and haze in film to mitigate melt fracture, resulting in a smoother surface and better film optics for visual appeal. 

The company highlights the key features and benefits of DowSil 5-1050 PPA:

• Die lip buildup reduction: Less downtime and scrap
• Lower die pressure: Enhances extrusion efficiency
• Food contact safety: Complies with European Commission Regulation (EU) 10/2011 and US FDA 21 CFR 174.5
• Versatile incorporation: Can be incorporated via dry or melt blending.

“By pairing innovations like this with our global supply capabilities and local technical support, we aim to equip packaging customers with the confidence and resources to succeed in the evolving industry,” says Ansari.