With the aid of radical initiators, chloroprene in the form of an aqueous emulsion is
converted into homopolymers or, in the presence of comonomers into copolymers.
The polymerization is stopped at the desired conversion by the addition of a short
stopping agent. The latex is freeze-coagulated on large, refrigerated revolving drums,
from which it is drawn as a thin sheet. After washing and drying, the sheet is formed
into a rope and then chopped to form the familiar chips (Picture 1) or granules.