| 摘要 |
<PICT:0831019/III/1> An apparatus for polymerizing or condensing the components of a synthetic resin consists of a vessel 1 provided with a cooling jacket 5, and an agitator 2 mounted on a central hollow spindle 3, which can be moved axially to close the outlet from the vessel at its base. Cooling air is admitted through a pipe 9, which then enters a tube 10 and passes through the hollow spindle to an exit 11. The hot reactants entering through pipes 6 and 7 are therefore cooled at the outer boundary and on the mixer, whereby adherent polymers at these surfaces are largely prevented. The hollow spindle 10 is provided with a drill member 4 to cut through solid polymer at the exit, and then air entering pipe 9 forces out the reaction product. The vessel may be washed out with one or more reactant components. Preferably charging and discharge are controlled automatically and are metered. |
