초록 ▼

Systems and methods for the manufacture of reinforced, three-zone, microporous phase inversion membrane having any one of a plurality of different possible pore sizes in any of the three zones from at least a single mother dope batch is disclosed. The systems and methods include formulating at least

Systems and methods for the manufacture of reinforced, three-zone, microporous phase inversion membrane having any one of a plurality of different possible pore sizes in any of the three zones from at least a single mother dope batch is disclosed. The systems and methods include formulating at least a single mother batch of dope in a vessel preferably maximizing the non-solvent to solvent ratio for a given weight percentage of polymer for use in a microporous phase inversion membrane production operation to produce three-zone phase inversion membranes having one of a plurality of different predetermined pore sizes in any or all of the three zones. The at least one mother dope batch is controllably formulated in at least one vessel such that the temperature of the dope does not exceed a predetermined maximum mixing temperature and is maintained at a relatively low temperature (lower than the mixing temperature) suitable for storage.

대표청구항 ▼

1. A system for manufacturing three-zone microporous membrane, the system comprising:at least one vessel for containing a ternary phase inversion polymer mother dope; a dope processing site; at least one pressure means, operatively connected to the at least one vessel, and the dope processing site f

1. A system for manufacturing three-zone microporous membrane, the system comprising:at least one vessel for containing a ternary phase inversion polymer mother dope; a dope processing site; at least one pressure means, operatively connected to the at least one vessel, and the dope processing site for moving the dope from the at least one vessel to the dope processing site; a dope transportation system, operatively connected to the at least one vessel and the dope processing site, for transfer of the dope from the vessel to the dope processing site; at least one thermal manipulation means, operatively connected to the at least one vessel and the dope processing site, for transforming the dope from the at least one vessel into any one of a plurality of different possible pore size producing dopes; and at least three dope application means, operative at the dope processing site and operatively connected to the at least one thermal manipulation means, for applying the dope at the dope processing site to form three-zone microporous membrane.