PET masterbatches provide long-last barrier protection

TWO new masterbatches from Clariant offer long-lasting protection against oxygen (O2) and carbon dioxide (CO2) permeation in PET bottles. Offered under the CESA-absorb brand name, the masterbatches use a combination of ingredients that remains stable during handling and processing and avoids the need for special nitrogen (N2) treatment, which is often required when using other oxygen absorbers. CESA-absorb OCA0050134-ZN incorporates a polyamide (PA) polymer additive that forms a passive barrier to help prevent CO2 escaping from bottles filled with carbonated soft drinks and beer, absorbs oxygen and thus, protects sensitive products inside the bottle. This masterbatch is typically added with let-down ratios of 4 or 5%. CESA-absorb NTA0050139-ZN allows processors to control loading by introducing the PA separately. Added at a rate of just 1 to 1.5%, it then functions with the PA just as it does in the all-in-one product. Both products can be supplied as combibatch, incorporating not only the additives for oxygen reduction and CO2 barrier, but also UV stabilizers, acetaldehyde scavengers and, of course, color. Clariant (Thailand) Ltd T: +66 2 661 53 60 F: +66 2 661 40 60 Web: www.clariant.co.th FPE244Womens Running Shoes