Clariant said the Renol-natur color masterbatches and Cesa-natur additive masterbatches are biogegradable and based on renewable resources. Until their introduction, users of biopolymers had to rely on colorants and additives that don't decompose like the biopolymers. The issue will become more important as the volume of such polymers grows, said Chris Pandis, global head of packaging. Renol-natur and Cesa-natur are derived mainly from plants and rely entirely on sustainable resources, according to the company.
Clariant of Muttenz, Switzerland, said biopolymers such as polylactic acid, polyhydroxyalkanoate and starch-based resins are mainly used in packaging, but producers of cellular phones, personal music players and laptop computers also are very interested in adopting them.
Renol-natur colors including red, orange, yellow, green and blue are available or in development. Clariant plans to sell its new colorant and additive masterbatches globally. It will release more details on the program at K 2007 trade show, slated for Oct. 24-31 in Dusseldorf, Germany.
Tel. 41-61-469-6170, fax 41-61-469-6597, e-mail [email protected]