Clariant, Switzerland, invented a series of additive products that can increase the melting power of the press, increase the production and reduce the production cost in the processing of polyester resins. These products have recently been approved by the FDA and can be used in the food-related packaging field. It is said that when used in processes such as PET, recyclable PET or re-extrusion of low-viscosity polycondensate resins, CESA's development of additive products can increase processing efficiency. Any industry that is facing high production costs can reduce costs. Welcomed.
These additives use oligomeric reactants to store the inherent viscosity of the resin, resulting in an increased melting strength that makes the extrudate stronger and less likely to relax. Due to the negative effects of heating and moisture-related degradation, the re-extrusion of polyester used by industry and consumers is greatly limited. These low-cost, environmentally-friendly materials cannot be used without a period of storage, premature drying, and proper handling prior to processing. However, this also results in limitations on productivity and yield while reducing product quality. But the Clariant company in Basel, Switzerland, pointed out that the CESA expansion product can be produced through a carrier resin and additives. In addition to the resin's suitability, they also increase the molecular weight and the processability of PC, TPU, polylactic acid, and nylon.