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1. 发明授权

US06365243B1 Fine powder of high molecular weight fluorine containing fused resins, its mold goods, and the dedicated production methods 失效
标题翻译：高分子量含氟熔融树脂微粉，其模具制品及专用生产方法
公开(公告)号：US06365243B1
公开(公告)日：2002-04-02
申请号：US08765454
申请日：1997-01-22
申请人： Katsuhide Otani , Kiyohiko Ihara
发明人： Katsuhide Otani , Kiyohiko Ihara
IPC分类号： C08F1418
CPC分类号： C08J3/12 , C08F6/00 , C08F214/18 , C08J2327/12 , Y10T428/1352 , Y10T428/139 , Y10T428/1397 , C08L27/12
摘要： The fine powder of high molecular weight fluorine containing resins having melt viscosities of 106 to 1013 poise, apparent density of 0.4 to 1.5 g/cc, and specific surface area of 2 m2/g or less, mold goods of the fine powder and these production methods. By utilizing the fine powder of high molecular weight flourine containing fused resins that have previously not been employed, the mold goods obtained from the fine powder have fewer liquated particles and have become the most suitable especially for manufacturing semiconductors. The powder's products have greater resistance to flex fatigue, abrasion, resistance, etc.
摘要翻译：熔融粘度为106〜1013泊，表观密度为0.4〜1.5g / cc，比表面积为2m 2 / g以下的高分子含氟树脂的细粉末，细粉的成型品和这些制造方法。通过利用以前没有使用的含有熔融树脂的高分子量的含氟粉末，从细粉中获得的模具具有较少的液化颗粒，并且已经变得最适合于制造半导体。粉末的产品具有较强的耐疲劳性，耐磨性，耐磨性等优点。

2. 发明授权

US06509429B1 Process for preparing fluorine-containing polymer 有权
标题翻译：含氟聚合物的制备方法
公开(公告)号：US06509429B1
公开(公告)日：2003-01-21
申请号：US09743188
申请日：2001-01-05
申请人： Masanori Kitaichi , Hiroshi Aihara , Sadashige Irie , Mitsuru Kishine , Yutaka Ueta , Katsuhide Otani , Yoshiki Maruya , Hideya Saito , Mitsuo Tsukamoto
发明人： Masanori Kitaichi , Hiroshi Aihara , Sadashige Irie , Mitsuru Kishine , Yutaka Ueta , Katsuhide Otani , Yoshiki Maruya , Hideya Saito , Mitsuo Tsukamoto
IPC分类号： C08F1418
CPC分类号： C08F14/26 , C08F14/18 , C08F14/28 , C08F259/08 , C08F2/16 , C08F2/22 , C08F214/18
摘要： A process for preparing a fluorine-containing polymer through emulsion polymerization method which enhances productivity while maintaining excellent physical properties of the fluorine-containing polymer and comprises (a) a first polymerization step for emulsion-polymerizing a fluorine-containing monomer or a mixture of a fluorine-containing monomer and a non-fluorine-containing monomer in an aqueous medium in the presence of a radical polymerization initiator and an emulsifying agent, (b) a dilution step for diluting the obtained aqueous emulsion of polymer particles with water to reduce the number of emulsified polymer particles per unit amount of aqueous medium in the emulsion and a concentration of emulsifying agent, and (c) a second polymerization step for emulsion-polymerizing a fluorine-containing monomer and/or a non-fluorine-containing monomer in the obtained diluted emulsified solution.
摘要翻译：一种通过乳液聚合方法制备含氟聚合物的方法，其提高生产率同时保持含氟聚合物的优异物理性能，并且包括（a）第一聚合步骤，用于将含氟单体或在自由基聚合引发剂和乳化剂的存在下，在水性介质中含氟单体和非含氟单体，（b）稀释步骤，用水稀释所得聚合物颗粒的水乳液以减少数量乳液中的乳化聚合物粒子和乳化剂的浓度的乳化聚合物粒子，和（c）在所得到的乳液聚合物粒子中使含氟单体和/或非含氟单体乳化聚合的第二聚合步骤稀释乳化液。

3. 发明授权

US06177532B1 Process for the polymerizing of flourine-containing olefin monomer 有权
标题翻译：含有含氟烯烃单体的聚合方法
公开(公告)号：US06177532B1
公开(公告)日：2001-01-23
申请号：US09269306
申请日：1999-03-29
申请人： Katsuhide Otani , Yoshiki Maruya , Yoshiyuki Hiraga , Satoshi Komatsu
发明人： Katsuhide Otani , Yoshiki Maruya , Yoshiyuki Hiraga , Satoshi Komatsu
IPC分类号： C08F11418
CPC分类号： B01J19/26 , B01J3/008 , B01J19/18 , B01J19/2465 , B01J2219/00162 , B01J2219/00164 , B01J2219/00768 , B01J2219/182 , C08F14/18 , Y02P20/544 , C08F2/16
摘要： A polymerization process, in which when at least one of fluorine-containing olefin monomers in gaseous phase or supercritical phase or a monomer mixture of the fluorine-containing olefin monomer and other monomer copolymerizable therewith is subjected to batch polymerization in an aqueous medium while being diffused to the aqueous medium, a diffusing amount of the monomer or monomer mixture to the aqueous medium is not less than 80% of the theoretical consumption of the monomer or monomer mixture when polymerized at the theoretical polymerization rate. According to the present invention, a polymerization rate is determined by the polymerization reaction but not by the diffusion of monomer gas, and thus higher polymerization rate can be achieved.
摘要翻译：聚合方法，其中当气相或超临界相中的至少一种含氟烯烃单体或含氟烯烃单体和可与其共聚的其它单体的单体混合物在水性介质中进行分批聚合同时被扩散向水性介质中，单体或单体混合物向水介质的扩散量不小于在理论聚合速度下聚合时单体或单体混合物理论消耗量的80％。根据本发明，通过聚合反应而不是通过单体气体的扩散来确定聚合速率，因此可以实现更高的聚合速率。

4. 发明授权

US06998454B2 Fluorine-containing resin material lowly permeable to liquid chemical 有权
标题翻译：含氟树脂材料对液体化学品渗透性低
公开(公告)号：US06998454B2
公开(公告)日：2006-02-14
申请号：US10465643
申请日：2003-06-20
申请人： Takahiro Taira , Takahisa Aoyama , Katsuhide Otani , Tetsuo Shimizu
发明人： Takahiro Taira , Takahisa Aoyama , Katsuhide Otani , Tetsuo Shimizu
IPC分类号： C08F16/24
CPC分类号： C08F214/262 , C08L27/18 , Y10T428/3154
摘要： To provide a suitable material having improved impermeability to liquid chemicals and cracking resistance while retaining excellent heat resistance and processability inherent in FEP-based fluororesins, a molded article of which is useful in the field of semiconductor production apparatus and the like. The present invention provides a fluorine-containing resin material comprising a fluorine-containing copolymer comprising 85 to 95.5% by mole of a repeating unit derived from tetrafluoroethylene, 5 to 10% by mole of a repeating unit derived from hexafluoropropylene and 0.1 to 5% by mole of a repeating unit derived from at least one higher perfluoro(vinyl ether) represented by the formula (1): CF2═CF—O—Rf1 (1) wherein Rf1 is a perfluoroalkyl group having 5 to 10 carbon atoms or a perfluoro(alkoxyalkyl) group having 4 to 17 carbon atoms, and molded article thereof.
摘要翻译：为了提供对液体化学品具有改进的不渗透性和耐开裂性的合适的材料，同时保持了基于FEP的氟树脂固有的优异的耐热性和加工性，其成型制品可用于半导体制造装置等领域。本发明提供一种含氟树脂材料，其含有含有85〜95.5摩尔％的来自四氟乙烯的重复单元，5〜10摩尔％的来自六氟丙烯的重复单元和0.1〜5重量％摩尔衍生自由式表示的至少一种较高全氟（乙烯基醚）的重复单元

5. 发明授权

US06774196B1 Fluorocopolymer and fluororesin composition lowly permeable to liquid chemical 有权
标题翻译：含氟共聚物和氟树脂组合物对液体化学品渗透性低
公开(公告)号：US06774196B1
公开(公告)日：2004-08-10
申请号：US10148230
申请日：2002-05-28
申请人： Takahiro Taira , Takahisa Aoyama , Katsuhide Otani , Tetsuo Shimizu
发明人： Takahiro Taira , Takahisa Aoyama , Katsuhide Otani , Tetsuo Shimizu
IPC分类号： C08F11612
CPC分类号： C08L27/18 , C08F214/262
摘要： To provide a novel PFA-based fluorine-containing copolymer having improved impermeability to liquid chemicals while retaining the excellent heat resistance, stress cracking resistance and processability inherent in PFA-based fluororesins, a material and a molded article useful in the field of semiconductor production apparatus and the like, using the copolymer. The present invention provides a fluorine-containing copolymer comprising 90 to 99.4% by mole of a repeating unit derived from tetrafluoroethylene, 0.5 to 5% by mole of a repeating unit derived from at least one lower perfluoro(alkyl vinyl ether) represented by the formula (1): CF2═CF—O—Rf1 (1) in which Rf1 is a perfluoroalkyl group having 2 to 4 carbon atoms, and 0.1 to 5% by mole of a repeating unit derived from at least one higher perfluoro(vinyl ether) represented by the formula (2): CF2═CF—O—Rf2 (2) in which Rf2 is a perfluoroalkyl group having 5 to 10 carbon atoms or a perfluoro(alkoxy alkyl) group having 4 to 17 carbon atoms, wherein the fluorine-containing copolymer has a melt flow rate of 0.1 g/10 minutes to 100 g/10 minutes and melting point of 290° to 325° C., and a resin composition using the same.
摘要翻译：提供一种具有改善的对液体化学品的不渗透性的新型PFA基含氟共聚物，同时保持了PFA类氟树脂中固有的优异的耐热性，抗应力开裂性和加工性，可用于半导体制造装置领域的材料和模塑制品等等，使用该共聚物。本发明提供一种含有90〜99.4摩尔％的来自四氟乙烯的重复单元的含氟共聚物，0.5〜5摩尔％的由式（1）表示的至少一种以下的低级全氟（烷基乙烯基醚）的重复单元，（1）表示的化合物：其中Rf 1为碳原子数2〜4的全氟烷基，0.1〜5摩尔％的由式（2）表示的至少一种以上的全氟（乙烯基醚）的重复单元，：其中Rf 2为碳原子数5〜10的全氟烷基或碳原子数4〜17的全氟（烷氧基烷基），其中，所述含氟共聚物的熔体流动速率为0.1g / 10分钟〜 100g / 10分钟，熔点为290〜325℃，使用该树脂组合物。

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