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23 条记录 (耗时 0.018 秒)

    Process for producing fluoropolymer
    2.
    发明申请
    Process for producing fluoropolymer 失效
    生产含氟聚合物的方法

    公开(公告)号：US20050043498A1

    公开(公告)日：2005-02-24

    申请号：US10495225

    申请日：2002-11-01

    申请人： Mitsuo Tsukamoto ,  Kenji Otoi ,  Hideki Nakaya ,  Yoshiyuki Hiraga ,  Tomohisa Noda

    发明人： Mitsuo Tsukamoto ,  Kenji Otoi ,  Hideki Nakaya ,  Yoshiyuki Hiraga ,  Tomohisa Noda

    IPC分类号： C08F2/00 ,  C08F14/18 ,  C08F4/28

    CPC分类号： C08F14/18 ,  Y02P20/544

    摘要： The present invention has for its object to provide a method of producing fluoropolymers with high productivity under comparatively low temperature and low pressure conditions which are conducive to reduced cost of commercial-scale production equipment. The present invention is directed to a method of producing a fluoropolymer which comprises polymerizing a radical polymerizable monomer in a defined reaction-field, said radical polymerizable monomer comprising a fluorine-containing ethylenic monomer and said defined reaction-field being in supercriticality-expression state with a monomer density [ρm]−monomer critical density [ρ0] ratio of [ρm/ρ0] not less than 1.1.

    摘要翻译： 本发明的目的是提供一种在相对较低的温度和低压条件下以高生产率生产含氟聚合物的方法，这有利于降低商业规模生产设备的成本。 本发明涉及含氟聚合物的制造方法，该方法包括在规定的反应场中聚合自由基聚合性单体，所述自由基聚合性单体含有含氟乙烯性单体，所述规定的反应场为超临界表达状态， [rhom / rho0]的单体密度[rhom] - 单体临界密度[rho0]比不小于1.1。

    Flat plate and light guide plate
    3.
    发明授权
    Flat plate and light guide plate 失效
    平板和导光板

    公开(公告)号：US06828007B2

    公开(公告)日：2004-12-07

    申请号：US10252592

    申请日：2002-09-24

    申请人： Kazuyuki Obuchi ,  Teruhiko Suzuki ,  Kenji Otoi

    发明人： Kazuyuki Obuchi ,  Teruhiko Suzuki ,  Kenji Otoi

    IPC分类号： C08F4642

    CPC分类号： G02B6/0065 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0061 ,  Y10T428/24355 ,  Y10T428/24479 ,  Y10T428/24802

    摘要： A flat plate made of a cycloolefin polymer comprising at least 30% by weight, based on the cyclopolefin polymer, of repeating units (A) having an alicyclic structure. The repeating units (A) comprises at least 30% by weight, based on the repeating units (A), of repeating units (A-i) having no norbornane structure. The cycloolefin polymer has a weight average molecular weight of 5,000 to 50,000. The flat plate is especially useful as a light guide plate.

    摘要翻译： 由环烯烃聚合物制成的平板，其包含基于环烯烃聚合物的至少30重量％的具有脂环结构的重复单元（A）。 重复单元（A）包含基于重复单元（A）至少30重量％的不具有降冰片烷结构的重复单元（A-i）。 环烯烃聚合物的重均分子量为5,000〜50,000。 平板作为导光板特别有用。

    Flat plate and light guide plate
    4.
    发明授权
    Flat plate and light guide plate 失效
    平板和导光板

    公开(公告)号：US06497939B1

    公开(公告)日：2002-12-24

    申请号：US09243414

    申请日：1999-02-03

    申请人： Kazuyuki Obuchi ,  Teruhiko Suzuki ,  Kenji Otoi

    发明人： Kazuyuki Obuchi ,  Teruhiko Suzuki ,  Kenji Otoi

    IPC分类号： B32B300

    CPC分类号： G02B6/0065 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0061 ,  Y10T428/24355 ,  Y10T428/24479 ,  Y10T428/24802

    摘要： A flat plate made of a cycloolefin polymer comprising at least 30% by weight, based on the cyclopolefin polymer, of repeating units (A) having an alicyclic structure. The repeating units (A) comprises at least 30% by weight, based on the repeating units (A), of repeating units (A-i) having no norbornane structure. The cycloolefin polymer has a weight average molecular weight of 5,000 to 50,000. The flat plate is especially useful as a light guide plate.

    摘要翻译： 由环烯烃聚合物制成的平板，其包含基于环烯烃聚合物的至少30重量％的具有脂环结构的重复单元（A）。 重复单元（A）包含基于重复单元（A）至少30重量％的不具有降冰片烷结构的重复单元（A-i）。 环烯烃聚合物的重均分子量为5,000〜50,000。 平板作为导光板特别有用。

    Polymerization inhibitor for tetrafluoroethylene
    5.
    发明授权
    Polymerization inhibitor for tetrafluoroethylene 有权
    四氟乙烯聚合抑制剂

    公开(公告)号：US07807859B2

    公开(公告)日：2010-10-05

    申请号：US12120796

    申请日：2008-05-15

    申请人： Mai Taguchi ,  Kenji Otoi ,  Yoshiyuki Takase ,  Hideya Saitou ,  Yoshiyuki Hiraga

    发明人： Mai Taguchi ,  Kenji Otoi ,  Yoshiyuki Takase ,  Hideya Saitou ,  Yoshiyuki Hiraga

    IPC分类号： C07C17/38

    CPC分类号： C07C17/386 ,  C07C17/42 ,  C07C21/185

    摘要： The present invention provides a polymerization inhibitor preventing the self-polymerization of TFE and the generation of a modified polymer of a polymerization inhibitor in a distillation step, particularly in a rectification step, of TFE. The present invention provides a method of distilling tetrafluoroethylene in the presence of a polymerization inhibitor comprising a cyclohexadiene compound of the formula: R1-A-R2 wherein R1 is a hydrocarbon group having 1 to 5 carbon atoms, R2 is a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms, and A is a cyclohexadiene ring. The cyclohexadiene compound is preferably α-terpinene or γ-terpinene.

    摘要翻译： 本发明提供了在TFE的蒸馏步骤，特别是精馏步骤中，阻止TFE的自聚合和阻聚剂的改性聚合物的产生的聚合抑制剂。 本发明提供一种在包含下式的环己二烯化合物的聚合抑制剂存在下蒸馏四氟乙烯的方法：R1-A-R2其中R1是具有1-5个碳原子的烃基，R2是氢原子或烃 具有1至5个碳原子的基团，A是环己二烯环。 环己二烯化合物优选为α-萜品烯或γ-萜品烯。

    Process for production of fluoropolymer
    8.
    发明申请
    Process for production of fluoropolymer 审中-公开
    含氟聚合物生产工艺

    公开(公告)号：US20060122347A1

    公开(公告)日：2006-06-08

    申请号：US10525847

    申请日：2003-08-28

    申请人： Mitsuo Tsukamoto ,  Kenji Otoi ,  Yoshiyuki Hiraga ,  Hideki Nakaya ,  Toshiki Ichisaka

    发明人： Mitsuo Tsukamoto ,  Kenji Otoi ,  Yoshiyuki Hiraga ,  Hideki Nakaya ,  Toshiki Ichisaka

    IPC分类号： C08F4/28

    CPC分类号： C08F14/18 ,  B01J3/008 ,  Y02P20/544

    摘要： A fluoropolymer producing method which comprises polymerizing a radical polymerizable monomer in a manner of continuous polymerization to give the fluoropolymer, wherein the defined reaction-field is in a supercriticality-expression state and under a pressure of not higher than 40 MPa and a temperature of not higher than that higher by 100° C. than the supercriticality-expression temperature of the defined reaction-field, said radical polymerizable monomer comprises a fluorine-containing ethylenic monomer, and said fluoropolymer has a weight average molecular weight [Mw] of not lower than 150, 000 as determined on the polystyrene equivalent basis and a ratio [Mw/Mn] of the weight average molecular weight [Mw] on the polystyrene equivalent basis to a number average molecular weight [Mn] of the fluoropolymer on the polystyrene equivalent basis is higher than 1 but not higher than 3.

    摘要翻译： 一种含氟聚合物的制造方法，其特征在于，以连续聚合的方式聚合自由基聚合性单体，得到含氟聚合物，其中，规定的反应场处于超临界状态，压力不高于40MPa，温度不高 高于比所定义的反应场的超临界表达温度高100℃，所述可自由基聚合的单体包含含氟乙烯性单体，并且所述含氟聚合物的重均分子量[Mw]不低于 以聚苯乙烯当量为基准测定的聚苯乙烯换算的基于聚苯乙烯换算的重均分子量[Mw]与聚苯乙烯换算的含氟聚合物的数均分子量[Mn]的比[Mw / Mn] 高于1但不高于3。