Additives produce greater intrinsic viscosity

Joncryl ADR 4400, Joncryl ADR 4468: Launched last year, these BASF chain extenders are part of a portfolio of products designed to rebuild molecular weight in polyesters, such as polyethylene terephthalate and polylactic acid. They chemically bond acid end groups together, resulting in greater intrinsic viscosity.

What's new? Approval for use in the creation of materials that could be turned into food-grade packaging. The compatibilizers replaced older products, which had lower thermal stability.

Benefits: Improved processability in extrusion, thermoforming and blown film applications. For recyclers, the compatibilizers contribute to greater material consistency, leading to reduced scrap rates and greater efficiency.

BASF Corp., Wyandotte, Michigan, 734-324-6697, www.basf.com