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Songwon begins production of phenolic antioxidant product in India

By Mary Page Bailey |

Songwon Industrial Ltd. (Ulsan, South Korea; www.songwon.com) has started to manufacture the product Songnox 5650, a high-molecular-weight, multifunctional phenolic antioxidant primarily used as a post-polymerization process stabilizer for unsaturated elastomers, at its Panoli plant in Gujarat, India.

The Panoli site was acquired from Sequent in 2014. “In the last three years, Songwon has continuously invested in the Panoli site to develop it into a hub for specialty chemicals, including Songnox 5650,” said Elena Scaltritti, Leader of Polymer Stabilizers at Songwon.

Phenolic antioxidants are highly effective, non-discoloring stabilizers for organic substrates that are prone to oxidation, including plastics, synthetic fibers, elastomers and waxes. They act as free radical scavengers, and are mainly used to protect the finished product.

“Thanks to its unique properties, Songnox 5650 can match the performance of stabilizers that have to be used in much larger amounts,” said Thomas Schmutz, Leader of Technical Service & Application Development. “And as a result of its very low volatility, there is virtually no product loss during polymer processing, drying or storage. These features make it highly cost effective.”

This non-staining antioxidant is suitable for a variety of elastomers, including polybutadiene, polyisoprene, emulsion styrene butadiene, nitrile rubber, carboxylated styrene-butadiene-rubber latex and styrene copolymers. It can also be used in hot melt, solvent-based adhesives as well as natural and synthetic tackifier resins.

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