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公开(公告)号：EP3156449A1
公开(公告)日：2017-04-19
申请号：EP15802859.7
申请日：2015-06-04
发明人： NANBA Yoshinori , FUKAMI Dai , YAMABE Takuya , KATO Taketo , ONO Makoto , TAIRA Takahiro , YOSHIDA Hirotoshi , YAMANAKA Taku
摘要： The present invention provides a polytetrafluoroethylene aqueous dispersion containing high-molecular-weight, significantly small polytetrafluoroethylene particles and having excellent dispersion stability. The present invention relates to an aqueous dispersion containing polytetrafluoroethylene particles containing a tetrafluoroethylene unit alone or a tetrafluoroethylene unit and a modifying monomer unit based on a modifying monomer copolymerizable with the tetrafluoroethylene. The polytetrafluoroethylene particles have a volume average particle size of not smaller than 0.1 nm but smaller than 20 nm, a melt flow rate of not lower than 0 g/10 min but lower than 80 g/10 min determined at 380°C and 5 kg load, a melting point of 324°C to 360°C, and an initial pyrolysis temperature of not lower than 400°C.
摘要翻译： 本发明提供含有高分子量，显着小的聚四氟乙烯颗粒并且具有优异的分散稳定性的聚四氟乙烯水性分散体。 本发明涉及含有单独的四氟乙烯单元或四氟乙烯单元的聚四氟乙烯颗粒和基于可与四氟乙烯共聚的改性单体的改性单体单元的水分散体。 聚四氟乙烯颗粒的体积平均粒径不小于0.1nm但小于20nm，在380℃和5kg下测定的熔体流动速率不低于0g / 10min但低于80g / 10min 负载，熔点为324℃至360℃，初始热解温度不低于400℃。
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2.发明公开
公开(公告)号：EP3348610A1
公开(公告)日：2018-07-18
申请号：EP16844233.3
申请日：2016-08-30
CPC分类号： C08J7/00
摘要： A manufacturing method for a polytetrafluoroethylene formed product according to an aspect of the invention is a manufacturing method for a polytetrafluoroethylene formed product, the method including a step of irradiating a forming material containing a polytetrafluoroethylene as a principal component with ionizing radiation, wherein the polytetrafluoroethylene has a melt viscosity at 380°C of not greater than 7×10 5 Pa·s.
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公开(公告)号：EP3348601A1
公开(公告)日：2018-07-18
申请号：EP16844232.5
申请日：2016-08-30
摘要： A polytetrafluoroethylene formed product according to an aspect of the invention contains, as a principal component, a polytetrafluoroethylene having a crosslinked structure and has a PV limit of not less than 1600 MPa·m/min.
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4.发明公开METHOD FOR PRODUCING FLUOROPOLYMER AQUEOUS DISPERSION LIQUID 审中-公开VERFAHREN ZUR HERSTELLUNG EINERWÄSSRIGENFLUORPOLYMERDISPERSIONSFLÜSSIGKEIT
公开(公告)号：EP3153527A1
公开(公告)日：2017-04-12
申请号：EP15803136.9
申请日：2015-06-04
发明人： NANBA Yoshinori , FUKAMI Dai , YAMABE Takuya , KATO Taketo , ONO Makoto , TAIRA Takahiro , YOSHIDA Hirotoshi , YAMANAKA Taku
CPC分类号： C08F114/26 , C08F2/24 , C08F14/00 , C08F14/26 , C08L27/18 , C08L2201/50 , C08F2/26
摘要： The present invention provides a method for producing a fluoropolymer aqueous dispersion having a significantly small particle size and excellent dispersion stability. The present invention relates to a method for producing an aqueous dispersion containing at least one fluoropolymer selected from the group consisting of polytetrafluoroethylene and melt-fabricable fluororesins excluding polytetrafluoroethylene. The method includes polymerizing a fluoromonomer in an aqueous medium in the presence of a fluorosurfactant and a polymerization initiator. The fluorosurfactant has a concentration in the aqueous medium of not lower than 0.8 times the critical micelle concentration of the fluorosurfactant.
摘要翻译： 本发明提供一种具有显着小的粒度和优异的分散稳定性的含氟聚合物水性分散体的制造方法。 本发明涉及含有至少一种选自聚四氟乙烯和聚四氟乙烯除外的可熔融制造的氟树脂的含氟聚合物的水性分散体的制造方法。 该方法包括在含氟表面活性剂和聚合引发剂的存在下在含水介质中聚合含氟单体。 含氟表面活性剂在含水介质中的浓度不低于含氟表面活性剂的临界胶束浓度的0.8倍。
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5.发明公开
公开(公告)号：EP2692750A1
公开(公告)日：2014-02-05
申请号：EP12764488.8
申请日：2012-03-28
发明人： IMAHORI Yuji , YOSHIDA Hirotoshi , IIDA Mayumi , ITO Kengo , TANAKA Yoshito , IMOTO Katsuhiko , KAWABE Takuma
IPC分类号： C08F214/00 , C08F2/26 , C08F218/08
CPC分类号： C08F218/08 , C08F2/26 , C08F14/18 , C08F214/00 , C08F214/182 , C08F214/186 , C08F214/188 , C08F214/24 , C08F214/245 , C08F214/26 , C08F214/265 , C08F14/26
摘要： The present invention provides a method for producing a copolymer containing a perhaloolefin and vinyl acetate by a novel emulsion polymerization method. The present invention relates to a method for producing a perhaloolefin-vinyl acetate copolymer by emulsion polymerization of at least a perhaloolefin having two carbon atoms and vinyl acetate in the presence of a hydrocarbon emulsifier or in the absence of an emulsifier, provided that the hydrocarbon emulsifier excludes a compound (1) represented by the formula (1):
[Chem. 1]
wherein R 1 and R 2 are the same as or different from each other and each represent a C4 to 12 unfluorinated saturated hydrocarbon group; M represents an alkali metal, an ammonium salt, or an amine salt.摘要翻译： 本发明提供了一种通过新的乳液聚合方法制备含有全卤代烯烃和乙酸乙烯酯的共聚物的方法。 本发明涉及在烃类乳化剂存在下或不存在乳化剂的情况下通过至少具有两个碳原子的全卤代烯烃和乙酸乙烯酯的乳液聚合制备全卤代烯烃 - 乙酸乙烯酯共聚物的方法，条件是烃类乳化剂 不包括由式（1）表示的化合物（1）：[Chem。 1]其中R 1和R 2彼此相同或不同，并且各自表示C4-12的未氟饱和烃基; M表示碱金属，铵盐或胺盐。
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