MATERIALS | FILM ADDITIVES
recently covered developments from companies including Addivant, BASF, Cytec (now Solvay), Songwon and BASF, which introduced its Tinuvin XT 55 light stabiliser in the run-up to K 2016. Tinuvin XT 55 is primarily aimed at artificial turf and technical textiles, but can also be used in films. Another key player in this area is Clariant, which
Above: Agroclear additives from Ampacet reduce fogging in agricultural films, contrib- uting to improved yields
Right: Ampa- cet’s UVBlock 347 PP helps prevent degradation of food products in PP pouches
ency, avoids problems linked to fog formation (light transmission reduction and plant damages), optimises plant growth and supports crop yield,” Ampacet claims. Finally, the company has developed what it claims is a highly effective range of masterbatches for food shelf-life extension, including the UVBlock 347 and UVBlock 347 PP offerings. These products, for PE and PP films (BOPP and cast PP) respectively provide a high barrier to UV radiation in thin clear films used in food and non-food packaging structures. The supplier says the masterbatches allow the films to retain their transparency and do not generate the blooming problems it describes as inherent with some conventional migratory chemistries.
Improved hydrolytic stability In recent years, numerous additive suppliers have been upping their game in stabilisation systems for film-grade polyolefins. Compounding World has
introduced AddWorks LXR 568 as one of its latest additive solutions at K 2016. This is a high-perfor- mance phosphorus-based process stabiliser (a secondary antioxidant) that combines outstanding colour and melt flow protection with a good resistance to hydrolysis (Figure 2). The product’s hydrolytic stability helps processors to prevent degradation of plastic resins used to produce a wide range of end-use applications including packaging films, ensuring that consistent product performance is maintained. At the Flexible Packaging Middle East confer-
ence organised by Compounding World publisher AMI in Dubai in December last year, Hartmut Sibert,
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PHOTO: AMPACET
PHOTO: AMPACET
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