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Milliken Chemicals, a well known supplier of sorbitol based clarifiers, has
introduced a new type of nucleating agent HDN-68 that produces nuclear
density of 3 x 1011 compared to the next highest density of 4 x
1010. HDN-68 also shows first crystallization temperature of 130°C
almost 28°C increase from the control resin of PP impact copolymer.
HDN-68 apparently belongs to a new type chemistry. This new type
of nucleating agent will be introduced early next year. Milliken
Chemical claims that HDN-68 unlike the traditional nucleating agents
like Na-benzoate etc could be used with sorbitol based clarifiers
very effectively and reduces haze significantly. HDN-68 has shown
better preformance in PP compared to other polymers. Infact, initially
HDN-68 is being developed for automotive applications of PP like
bumpers.
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