发明名称 |
PROCESS FOR PRODUCING POROUS ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER AND POROUS ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER |
摘要 |
<p>To provide a method for easily producing an ethylene/tetrafluoroethylene copolymer porous material having excellent chemical resistance and filtration performance and has a high heat resistance, within a wide range of the porosity, and an ethylene/tetrafluoroethylene copolymer porous material obtained by such a process. A process for producing an ethylene/tetrafluoroethylene copolymer porous material which comprises a step of dissolving an ethylene/tetrafluoroethylene copolymer having repeating units based on ethylene and repeating units based on tetrafluoroethylene at a temperature of at most 300°C in a solvent which can dissolve the ethylene/tetrafluoroethylene copolymer at a temperature of at most 300°C, to achieve a predetermined concentration to obtain a solution, a step of forming the solution to obtain a formed product, and a step of cooling the formed product to a temperature of at most the phase separation temperature of the solution to solidify the ethylene/tetrafluoroethylene copolymer.</p> |
申请公布号 |
EP2338933(B1) |
申请公布日期 |
2013.03.20 |
申请号 |
EP20090820603 |
申请日期 |
2009.10.14 |
申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
IRUYA, KEN;NAKANO, TAKASHI;FUJITA, TOMOYUKI;MORIZAWA, YOSHITOMI |
分类号 |
C08J9/26;C08J9/28;C08K5/00;C08L23/08;C08L27/12;C08L27/18;D01F6/32 |
主分类号 |
C08J9/26 |
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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