Abstract
A new and simple technique for curing chlorosulfonated polyethylene elastomers has been found that offers an economical means of making white and light-colored vulcanizates that do not contain sulfur compounds. This kind of stock can therefore be used directly in contact with bare copper, as in wire coverings, or with lead, as in lead press cures of hose and cables. In applications where the presence of litharge is acceptable, excellent water resistance can be developed. Aging characteristics of vulcanizates are generally comparable to those employing other curing systems, although extensive data are not now available. Because crosslinking is achieved entirely through electrostatic bonding of ion pairs, compression set values of these compounds are high, and this should be recognized in considering the applicability of this technique.