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Caprolactam was first described in the late 1800s when it was prepared by the cyclization of ε-aminocaproic acid, the product of the hydrolysis of caprolactam.World demand for caprolactam was estimated to reach five million tons per year for 2015. 90% of caprolactam produced is used to make filament and fiber, 10% for plastics, and a small amount is used as a chemical intermediate. [2]
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Caprolactam molecule used to synthesize Nylon 6 by ring opening polymerization. Nylon 6 or polycaprolactam is a polymer, in particular semicrystalline polyamide.Unlike most other nylons, nylon 6 is not a condensation polymer, but instead is formed by ring-opening polymerization; this makes it a special case in the comparison between condensation and addition polymers.
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The Hopewell plant is one of the world's largest single-site producers of caprolactam. [6] It has an annual production capacity of 600,000 tons of ammonia and 400,000 tons of caprolactam. [7] For context, global annual demand for caprolactam is estimated at 5 million tons. [8] AdvanSix is an integrated chemical manufacturer.
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