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MASTERBATCH | COLOUR


Right: Foster Corporation has launched MediBatch colour master- batches using FDA listed colour addi- tives


disperse more readily in polymer than concentrates, exhibit better flow at lower temperatures and screw torques, and take less time for purging. This enhanced process- ability means greater productivity, lower energy consumption, and reduced scrap.” In early July, PolyOne said it had acquired


Mesa, a North American producer of colour and additive materials and services. Mesa produces both solid and liquid colorant technologies and operates facilities in Phoenix, Arizona and Fort Smith, Arkansas. Mesa serves a diverse range of end markets including packaging, consumer products and outdoor equipment. It is PolyOne’s fourth specialty colour acquisition in the last eight months. Robert Patterson, head of PolyOne, says the company continues to focus on “bolt-on” opportunities where it can invest to grow and leverage its expertise.


More bio-based masterbatches Bioplastics like polylactic acid (PLA), polyhydroxyal- kanoate (PHA), polyhydroxybutyrate (PHB) and starch-based resins like Novamont’s Mater-Bi can be more colourful, thanks to masterbatches that are themselves biodegradable. Clariant introduced Renol-natur colour masterbatches as long ago as 2007. Options can include natural colours drawn from renewable sources like plants, or convention- al, man-made ingredients in a compatible carrier produced in compliance with standards governing compostability and toxicity. At K 2016, Clariant announced it had become the first producer of quinacridone pigments based on bio-succinic acid. PV Fast Pink E/E01 offers bright colours for every- day products from toys to food packaging and textiles, it says. Now AF-Color, a branch of Akro-Plastic, has added a broad range of biodegradable master- batch carriers to its AF-Eco product portfolio. The company says that with bioplastics, pigmentation is an increasingly important aspect. “We aim to rise to the challenge of growing


complexity in bio-based plastics applications, and this is how we plan to succeed. It will allow us to minimise interactions with other polymer compo- nents in a compound,” says sales director Dirk Schöning. R&D director Inno Gaul adds: “Now there are virtually no limits to our customers’ colour requirements for bio-masterbatches.” According to the manufacturer, just about every colour objective can be realised – even pearlescent effect colours. The bio-masterbatches are marketed exclusively


72 COMPOUNDING WORLD | November 2017


by sister company Bio-Fed, which specialises in marketing bio-based and biodegradable plastics under the brand name M∙Vera.


Medical applications


Foster Corporation, which specialises in materials for medical devices, has


introduced a new line of colour concentrates using FDA 21CFR 7 and 74 subpart D pigments for medical device applications. In support of medical customers in early stages of product development, Foster’s MediBatch colour concen- trates are available in quantities as low as 1lb (453g).


MediBatch concentrates are formulated using


FDA listed colour additives and a universal carrier that is compatible for blending with a wide range of polymers. Twelve standard concentrates, including green, red, yellow, blue, violet, black and white, are available from stock in 1, 5 and 10lb quantities. Custom coloured concentrates are also available on a made to order basis. In order to get a device on the market, medical device manufacturers must demonstrate to the Food and Drug Administration (FDA) or other regu- latory body that a device is safe and effective for the intended use. If the device directly or indirectly contacts human tissue or fluids, the regulatory approval process may include biocompatibility testing of the device as prescribed by the Interna- tional Standard ISO-10993. Device manufacturers often prefer to use materials that are also tested and compliant to the relevant ISO-10993 tests. For coloured plastic components, this includes the polymer and additives including pigments. “Masterbatch colour concentrates using medical device pigments should utilize polymer carriers that are compatible with commonly used medical polymers, such as polyamides and thermoplastic polyurethanes,” says Lawrence Acquarulo, CEO of Foster Corp.


CLICK ON THE LINKS FOR MORE INFORMATION: ❯ www.silvergate.co.ukwww.colloids.co.ukwww.albis.comwww.teknorapex.com/teknor-colorwww.broadwaycolours.comwww.ampacet.comwww.clariant.com/masterbatcheswww.riverdaleglobal.comwww.polyone.comwww.af-color.comwww.fostercomp.com


www.compoundingworld.com


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