Abstract
India’s Aditya Birla Group has purchased Connora Technologies and its Recyclamine process for recycling epoxy resins. The technology is based on polyamino acetal–based curing agents with built-in acid-cleavable bonds that become part of the epoxy structure. When an epoxy-fiber composite is at the end of its life it is immersed in an acetic acid bath that breaks down the cross-linked polymer and allows recovery of thermoplastic and fiber. Connora, one of C&EN’s 10 Start-Ups to Watch in 2015, has worked with Aditya Birla since 2016.
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