MATERIALS | TECHNOLOGY RECYCLING
Shrink-wrap with added
recyclate RPC BPI Protec has introduced a shrink- wrapped film with a 30% recycled content. X-EnviroShrink, which is available in both plain and printed versions, uses the company’s Sustane recycled polymer to set a new standard in shrink film technology, it says. The product was devel-
oped after company research revealed that 83% of consumers were more likely to choose products with either less packaging or
recyclable packaging. “The sustainability of
packaging is a paramount requirement for brands and consumers,” said David Lumley, managing director. �
www.bpi-protec.com
POLYCARBONATE Clear film works at high temperatures
SABIC has developed a transparent, high-heat polycarbonate film for use in electronics applications. Its Lexan CXT film combines high clarity with good thermal and dimen- sional stability at elevated process temperatures. It was developed for use in substrates in the flexible printed electronics market, and other that require high processing temperatures. “Substrates are an essential yet
often neglected layer in many flexible printed electronic applications and can place undesired limitations on the
www.filmandsheet.com
production process when it comes to heat resistance,” said Ravi Menon, global business manager for film in the company’s functional forms business. The film has a glass transition
temperature of 196°C, which opens a wide manufacturing window to meet the required dimensional stability in thermally demanding processes. At a typical thickness of 50 microns, it has a light transmittance up to 90% and low yellowing, especially compared to incumbent polyimide products. This, together with low haze, makes it ideal for applications requiring high clarity. The film could also be used in
laminated structures, such as conduc- tive layers for high-end touch screens. �
www.sabic.com
December 2018 | FILM & SHEET EXTRUSION 49 POLYETHYLENE
Extending food contact slip options for FFS films
At Fakuma, Dow Perfor- mance Silicones intro- duced a new version of its silicone-based slip enhancing masterbatch for polyethylene (PE) FFS film applications that offers full compliance with food contact regulations in Europe, the US and China. Offering a product for FFS applications that carries only US and European is no longer acceptable for globally active film producers, said Christophe Paulo, global segment leader for plastic additives at Dow Corning. “In the past, if you were food approved in the US and Europe that was OK – but the Chinese govern- ment recently changed that,” he said. To develop its new MB25-235 grade, the company reviewed all the materials with registered
MB 25-235 has FFS food contact approval globally
CAS numbers that had full food approval, to develop a solution with equivalent or better performance. That meant offering stable and long-lasting slip perfor- mance with no migration of the additive to the surface. The absence of migration
means the additive only needs to be included in the surface layer, so it can match or undercut the cost of tradi-
tional alternatives such as erucamide and minimises the impact on downstream operations such as printing or metallisation. The company is further developing this line of products, and expects to introduce a new variant – with both antiblock and antislip properties – in time for Chinaplas 2019. �
www.dowcorning.com
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