发明公开
EP1681308A4 AQUEOUS TETRAFLUOROETHYLENE POLYMER DISPERSION, PROCESS FOR PRODUCING THE SAME, TETRAFLUOROETHYLENE POLYMER POWDER, AND MOLDED TETRAFLUOROETHYLENE POLYMER
有权
含水四氟乙烯聚合物分散体,工艺制作,四氟乙烯聚合物粉末,并成型四氟乙烯类聚合物
- 专利标题: AQUEOUS TETRAFLUOROETHYLENE POLYMER DISPERSION, PROCESS FOR PRODUCING THE SAME, TETRAFLUOROETHYLENE POLYMER POWDER, AND MOLDED TETRAFLUOROETHYLENE POLYMER
- 专利标题(中): 含水四氟乙烯聚合物分散体,工艺制作,四氟乙烯聚合物粉末,并成型四氟乙烯类聚合物
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申请号: EP04792860申请日: 2004-10-22
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公开(公告)号: EP1681308A4公开(公告)日: 2009-08-19
- 发明人: TSUDA NOBUHIKO , NANBA YOSHINORI , SAWADA YASUHIKO , SHIMIZU TETSUO
- 申请人: DAIKIN IND LTD
- 专利权人: DAIKIN IND LTD
- 当前专利权人: DAIKIN IND LTD
- 优先权: JP2003362500 2003-10-22
- 主分类号: C08F214/26
- IPC分类号: C08F214/26 ; C08F2/24 ; C08F14/26
摘要:
An aqueous TFE polymer dispersion which has a high concentration and is stable although it is a dispersion obtained through polymerization in the absence of a fluorochemical surfactant or in the presence of the surfactant in a low concentration. It is an aqueous TFE polymer dispersion obtained by polymerizing TFE in an aqueous medium in the presence of a fluorovinyl group-containing emulsifying agent comprising a fluorovinyl group-containing compound having a carboxy group, and is characterized by comprising the aqueous medium and particles of a TFE polymer dispersed therein and having a fluorochemical surfactant content of 1,000 ppm by mass or lower.
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