Extrusion International 3-2017

15 Extrusion International 3/2017 Tosaf‘s new white masterbatch ME800047 is a newly developed white masterbatch from Tosaf for extrusion coating applications. Its increased heat stability significantly reduces smoke and odour when pro- cessed at high temperatures. Beyond, this new masterbatch contributes to a higher production efficiency compared to traditional products of this kind. Extrusion coating is a highly demanding process to apply a very thin polymer layer to a substrate at processing tem- peratures close to the thermal degradation point of the pro- cessed polymers (app. 300 ºC). Known challenges include necking (the melt dripping unevenly on the sheet in a neck shape), heavy smoke and strong odour due to the high pro- cessing temperatures, poor dispersion, gel formation und die buildup. To overcome these extrusion coating related issues, Tosaf has developed ME800047 white MB. It withstands the extremely high processing temperatures whilst at the same time main- taining its high dispersion quality. This results in a constantly homogenous coating and reduces the need for filter chang- es during production. Gel formation is significantly reduced and its opacity allows for a lower addition level of ME800047, even in very thin layers. And because this new white master- batch does not contain migrating additives, it provides high corona retention, good printability and reduced die buildup. www.tosaf.com Tosaf’s new white masterbatch ME800047 significantly reduces smoke and odour in extrusion coating. © Tosaf