| 摘要 |
PURPOSE:To obtain a chlorosulfonated polyethylene having excellent low- temperature characteristics, by carrying out the chlorination and chlorosulfonation reaction of polyethylene introducing a chlorination and chlorosulfonation agents uniformly to the reaction solution at two or more parts of the liquid phase of the solution. CONSTITUTION:A polyethylene is dissolved in a halogenated hydrocarbon, and chlorinated and chlorosulfonated in the presence of a radical reaction catalyst such as alpha,alpha'-azobisisobutyronitrile. In the above process, the chlorination and chlorosulfonation agents (e.g. chlorine gas, sulfur dioxide gas, etc.) are added to the reaction solution dividedly from two or more parts of the liquid phase of the solution. USE:various industrial material, paint, adhesive, etc.
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