| 摘要 |
Polymerizing chloroprene in an alkaline-aqueous emulsion in the presence of elemental sulfur to form a chloroprene polymer latex and incorporating into the system at a time no later than when the polymer is in the latex state, e.g., during polymerization, at least about 0.5 part by weight per hundred parts organic monomer of a sulfenamide compound having the structure WHERE R and R' are alkyl, cycloalkyl, aralkyl radicals or one of R or R' can be hydrogen, or R and R' together can form a saturated ring with the nitrogen, e.g., 2-(morpholinothio)benzothiazole and after polymerization and subsequent to the addition of the sulfenamide, or at the same time the sulfenamide is added, separately adding certain peptizing agents.
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