Solutions for Masterbatches - Sachtleben Chemie GmbH

additives – Synthetic barium sulfateANTI-BLOCKING ADDITIVESAnti-blocking additives are used in order to control the adhesionbetween film layers or films and other material in contact withfilms, for example rolls or bars. They should not impact anykind of optical effects to the film, for example specks, color,reduced gloss or angle dependent properties. Anti-blockingadditives based on natural minerals might cause such effectswith respect to impurities or oversized particles. Angle dependenteffects can not be excluded, in case of lamellar minerals.SACHTOPERSE AB is fully synthetic, based on globular, precipitatedbarium sulfate, which is optimized with the decade longexperience of Sachtleben with this kind of products.Although the beneficial effects of SACHTOPERSE AB can beexploited in any polymer, use in highly transparent and glossypolyester films demonstrates the potential of SACHTOPERSE AB.Enhanced optical film properties2520StandardSACHTOPERSE AB130120HAZE [%]105GLOSS [%]110908000 500 10001500 2000700 500 10001500 2000ADDITIVE CONCENTRATION [ppm]ADDITIVE CONCENTRATION [ppm]18