As in the working continual

摘要

With this invention, supplying vinyl monomer aqueous solution 26 to the working belt 2 surface continually, in the production method of the hydrophilic polymer which makes the aforementioned monomer polymerize, in the aforementioned continual belt 2, it forms the tune section 100 which projects to the lower part which becomes the greatest depth in the polymerization section vicinity of the vinyl monomer according to the traveling direction of the aforementioned continual belt, it starts the polymerization of the vinyl monomer in the aforementioned tune section. Furthermore, the vapor which volatile is done is removed from the aqueous solution surface of the vinyl monomer which makes the polymerization start.