Abstract
Polychloroprene, or neoprene, has been commercially available since 1932. Through the years the use of these polymers has continued to increase to an annual worldwide consumption of almost 300 000 metric tons (660 million pounds, Table I). This represents about 5% of the world market for elastomer. Polychloroprene must, therefore, be regarded as one of the more important specialty elastomers. The polymer has enjoyed this growth because it has filled much of the need for an oxidation-resistant, oil-resistant, and heat-resistant elastomer. It is the purpose of this paper to summarize the technical knowledge of the preparation and use of polychloroprene. In preparing this paper, we have made extensive use of prior review publications. We have attempted to organize the topics in a logical sequence and have updated the information to 1975. Our objective has been to describe the major lines of technical effort. Our reference list is therefore not necessarily an exhaustive one.

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