Method for producing purified chloroprene-based-polymer latex

A method for producing purified chloroprene-based-polymer latex, comprising:

• at least the following steps (I) to (III):
• Step (I):
• a step of introducing chloroprene-based-polymer latex into a container as a liquid phase part beforehand,
• Step (II):
• a step of removing a residual volatile organic substance in chloroprene-based-polymer latex which satisfies the following requirements (1) to (4):
• Requirement (1):
• chloroprene-based-polymer latex is formed into liquid drops and introduced into a gas phase part in the container,
• Requirement (2):
• pressure in the container is less than atmospheric pressure,
• Requirement (3):
• the liquid drops are introduced so as to cover the whole liquid surface of the latex in the liquid phase part introduced into the container before the liquid drops, and
• Requirement (4):
• liquid temperature of the latex in the liquid phase part is less than a boiling point of water at the pressure in the container, and
• Step (III):
• a step of collecting the latex from the container after performing the step (II) at least once, to thereby obtain purified chloroprene-based-polymer latex;
• wherein the step (II) further satisfies the following requirement (5)′:
• Requirement (5)′:
• a mixed fluid of water and one or more gases selected from the group consisting of inert gases and air is introduced directly into the latex in the liquid phase part in the container.