发明名称 |
Polymer and polymer mixture membrane production comprises melting polymers in forming unit, supplying gas, and controlling temperature of nozzle at end of process line |
摘要 |
The production of polymer and polymer mixture membranes comprises melting the polymers in a forming unit in an extruder (11), and supplying gas (14) to form a foam at a nozzle (12) at the end of the process line (15). The nozzle temperature is controlled according to the polymer used, and is about 310[deg]C for polyethersulfone and 183[deg]C for polycarbonate. The production of polymer and polymer mixture membranes comprises melting the polymers in a forming unit in an extruder (11), and supplying gas (14) to form a foam at a nozzle (12) at the end of the process line (15). The nozzle temperature is controlled according to the polymer used, and is about 310[deg]C for polyethersulfone and 183[deg]C for polycarbonate. The process line has a number of temperature zones. The gas used is CO2 and it is supplied in an amount of 1-15 wt.% of the polymer. |
申请公布号 |
DE10057621(A1) |
申请公布日期 |
2002.06.20 |
申请号 |
DE2000157621 |
申请日期 |
2000.11.21 |
申请人 |
GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH |
发明人 |
HUANG, QUAN;SEIBIG, BERND;PAUL, DIETER |
分类号 |
B01D67/00;B01D69/00;B01D69/08;B01D71/50;B01D71/68;B29C44/50;C08J5/22;C08L81/06 |
主分类号 |
B01D67/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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