Chloroprene (Neoprene) Rubber (CR) in Primary Forms

Neoprene is a widely recognized trade name (originally DuPont's) for polychloroprene, and its use on commercial invoices is generally understood. However, for classification purposes, the chemical name 'chloroprene rubber (CR)' or 'polychloroprene' is preferred to avoid ambiguity, since 'neoprene' can occasionally refer to neoprene foam or fabricated articles that classify elsewhere.

Chloroprene rubber is prone to crystallization at low temperatures, which can cause bales to harden and become difficult to process upon arrival. Importers shipping CR through cold climates should specify low-crystallization grades or ensure temperature-controlled storage during transit to avoid processing delays at the compounding facility.