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Wednesday, 15 July 2020
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Raw materials & technologies, Raw materials, Coatings binders

TETA-free polyamide introduced

Monday, 29 March 2010

Because of past supply issues in higher ethylene amine derivatives and the concern for potential future issues, a series of TETA-free polyamide curatives will be introduced. It is one alternativestream that could be used in the production of polyamide curing agents.

Polyamide resins based on dimerized fatty acids and polyamines have been used all over the world for over 50 years as the standard workhorse curative for two-part epoxy coatings and adhesives. Systems based on these curatives provide good flexibility, corrosion resistance and good adhesion and as such have found wide usage in maintenance, protective and marine coating systems. Cognis has developed "Versamid 116", which is based on a novel amine feedstock, to reduce the potential of interrupted supply to customers in the event the company once again sees significant shortages in key amine building blocks. Along with this product a xylene as well as a isopropanol solution will be introduced.

The new TETA-free polyamide curative. Source: Cognis

The new TETA-free polyamide curative. Source: Cognis

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