发明名称 |
Process for producing a tetrafluoroethylene polymer |
摘要 |
A tetrafluoroethylene polymer is produced by polymerizing tetrafluoroethylene in the presence of an aqueous medium and a polymerization initiator, wherein the content of impurities (e.g. a saturated compound such as CH2F2 or CHF3 and an unsaturated compound such as CF2=CFH, CF2=CH2, CF2=CFCl or CF2=CHCl) in the tetrafluoroethylene is not more than 100 ppm. By this method, PTFE which is uniform and stretchable at a high stretch ratio and which is excellent in the fibrillation property and has a high break strength, can be obtained.
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申请公布号 |
US2003065115(A1) |
申请公布日期 |
2003.04.03 |
申请号 |
US20020290371 |
申请日期 |
2002.11.08 |
申请人 |
ASAHI GLASS COMPANY LIMITED |
发明人 |
KOBAYASHI SHIGEKI;HOSHIKAWA JUN;KATO KAZUO;KAMIYA HIROKI;HIRAI HIROYUKI |
分类号 |
C08F2/22;C08F2/16;C08F14/26;C08F114/26;(IPC1-7):C08F114/18 |
主分类号 |
C08F2/22 |
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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