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plasticisers | PVC


Global plasticiser balance (kT) Source: GA ZAK estimates, IHS


dibenzoates in recent years,” according to the company. Emerald Kalama offers such products under the K-Flex banner and says it continues to focus R&D on optimising and enhancing end use performance. It notes that high solvators are not a drop-in replacement for other plasticisers; it is necessary to adjust the formula- tion in order to prevent unwanted viscosity increases. Use of dibenzoates in blends can resolve this problem. Another recent priority for Emerald Kalama has been to increase the formulator’s latitude to tailor perfor- mance characteristics for specifi c end use applications. It cites K-Flex 975P, which comprises a highly compat- ible, dibenzoate-based composition designed for improved processing and handling over other modern dibenzoate blends as well as providing enhanced properties such as stain resistance and durability. Emerald Kalama completed REACH registration for the new composition last year and was granted patents and applications in use for K-Flex 975P covering a number of countries in June. The company also has several developmental dibenzoate plasticisers specifi - cally designed to compatibilise less compatible GP non-ortho-phthalate plasticisers.


Global plasticiser consumption by type (kT) Source: GA ZAK estimates, IHS


This March, Eastman Chemical Company unveiled the second member of its non phthalate plasticiser portfolio, VersaMax Plus. The new grade complements the original VersaMax product and, like the original, is a terephthalate. Eastman describes VersaMax Plus as an enhanced, general-purpose, non- phthalate solution that provides better effi ciency, improved dry time, lower and stable plastisol viscosity, and faster fusion when compared to traditional ortho phthalate plasticisers and other non- phthalate options. It says it is suitable for use in plastisols and dry blends.


VersaMax Plus is said to demonstrate performance consistent to DEHP across a variety of Shore A hardness levels while outperforming DINP (diisononyl phthalate).


Overcoming diffi culties


Mark Holt, director of market development and advocacy for Eastman’s plasticiser business, says that development of the two VersaMax products came in response to diffi culties that a number of customers had been experiencing in reformulating compounds with its well-established Eastman 168 grade as they moved away from more traditional plasticisers.


Effi ciency of various plasticisers, according to Eastman 28 COMPOUNDING WORLD | August 2016


“With VersaMax, we have a product they can use like plasticisers they have been used to in terms of compat- ibility, dry time, effi ciency and things like that,” he says. “Now with VersaMax Plus we give formulators with even lower fusion temperatures, faster gelation…it really matches the performance of DEHP in many plastisol and dry blend formulations. You get a wider formulation


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