Cool-dissolving apparatus and heat-dissolving apparatus for producing polymer solution and products thereof

摘要

A cool-dissolving apparatus for producing a solution from a mixture of polymer and solvent includes a double-structure pipe which is constructed of a cylinder and a jacket surrounding the cylinder. A mixture is fed in the cylinder, and a cooling medium flows in a space between the cylinder and the jacket oppositely to the mixture in the cylinder such that polymer dissolves to the solvent. The obtained solution is supplied in a heat-dissolving apparatus including a pipe for feeding the solution. In the heat-dissolving apparatus, the pipe extends horizontally or upwards in a feeding direction of the solution.