The NEXAMITE® product range for polyesters targets improved processability, mechanical properties and durability. NEXAMITE A92, NEXAMITE M021200, NEXAMITE M921001 act as chain extenders and long-chain branching agents and can be used to increase the melt strength and viscosity of polyesters to allow for demanding extrusion applications, e.g. PET foam extrusion and film blowing. Elongation and impact resistance are improved and the intrinsic viscosity of PET can be increased by >0.3 units using these products.
NEXAMITE A99 is a linear chain extender and acid scavenger which provides increased molecular weight and process stabilization during melt processing. NEXAMITE A99 is suitable for filament extrusion and can also be used in extrusion of bi-axially oriented PET film where it acts as process stabilizer and offers significant improvement of hydrolysis resistance. Also tensile and flexural strength and moduli are improved in glass fibre reinforced polyester resins. In addition, NEXAMITE products can be used for upgrade of recycled polyesters, e.g. from fibres or containers, to increase intrinsic viscosity.