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    • 27. 发明授权
    • Processes for producing 1,1-dichloro-2,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene
    • 制备1,1-二氯-2,3,3,3-四氟丙烯和2,3,3,3-四氟丙烯的方法
    • US08357828B2
    • 2013-01-22
    • US13163809
    • 2011-06-20
    • Hidekazu OkamotoYasuyuki Sasao
    • Hidekazu OkamotoYasuyuki Sasao
    • C07C21/18
    • C07C17/23C07C17/25C07C21/18
    • To provide a simple and economical process for producing 1,1-dichloro-2,3,3,3-tetrafluoropropene, which does not require purification of the raw material component obtained in the form of a mixture of isomers, and a process for producing 2,3,3,3-tetrafluoropropene from the product thereby obtained.A process for producing 1,1-dichloro-2,3,3,3-tetrafluoropropene, characterized by bringing a mixture of dichloropentafluoropropane isomers which contains 1,1-dichloro-2,2,3,3,3-pentafluoropropane into contact with an aqueous alkali solution in the presence of a phase transfer catalyst, and thereby selectively dehydrofluorinating only the 1,1-dichloro-2,2,3,3,3-pentafluoropropane in the mixture, and a process for producing 2,3,3,3-tetrafluoropropene from the 1,1-dichloro-2,3,3,3-tetrafluoropropene thereby obtained.
    • 为了提供简单经济的制备1,1-二氯-2,3,3,3-四氟丙烯的方法,其不需要纯化以异构体混合物形式获得的原料组分,以及制备方法 从得到的产物中加入2,3,3,3-四氟丙烯。 一种制备1,1-二氯-2,3,3,3-四氟丙烯的方法,其特征在于使含有1,1-二氯-2,2,3,3,3-五氟丙烷的二氯五氟丙烷异构体与 在相转移催化剂存在下的碱性水溶液,从而仅选择性地将该混合物中的1,1-二氯-2,2,3,3,3-五氟丙烷脱氟化氢,以及制备2,3,3 由1,1-二氯-2,3,3,3-四氟丙烯得到3-四氟丙烯。
    • 30. 发明授权
    • Ultraviolet transmitting fluoropolymer and pellicle comprising said polymer
    • 包含所述聚合物的紫外透射含氟聚合物和防护薄膜
    • US07442815B2
    • 2008-10-28
    • US11061689
    • 2005-02-22
    • Ikuo MatsukuraHidekazu OkamotoEisuke MurotaniKazuya Oharu
    • Ikuo MatsukuraHidekazu OkamotoEisuke MurotaniKazuya Oharu
    • C07D307/77
    • C07D307/16C07D307/18C07D307/30C08F34/02G03F1/62G03F1/64
    • A pellicle which is excellent in transmittance and durability against short wavelength light, and which can be used for photolithography by using e.g. a KrF excimer laser, is provided.A pellicle for exposure to a light having a wavelength of at most 200 nm, which comprises a frame and a pellicle membrane bonded to the frame by means of an adhesive, wherein the pellicle membrane and/or the adhesive comprises a polymer containing repeating units represented by the following formula (1): wherein Q represents a C1-3 polyfluoroalkylene group having a linear structure, or a group having at least one atom selected from hydrogen atoms and fluorine atoms in such a polyfluoroalkylene group substituted by a substituent comprising a polyfluoroalkyl group which may contain an ethereal oxygen atom, or the like, and X represents a hydrogen atom, a fluorine atom or a C1-3 polyfluoroalkyl group which may contain an ethereal oxygen atom.
    • 对于短波长光透射率和耐久性优异的防护薄膜组件,其可以通过使用例如紫外线照射用于光刻。 提供KrF准分子激光器。 用于暴露于具有至多200nm的波长的光的防护薄膜组件,其包括通过粘合剂粘合到框架上的框架和防护薄膜组件,其中防护薄膜组件和/或粘合剂包含含有重复单元的聚合物 通过下式(1)表示:其中Q表示具有直链结构的C 1-3-3多氟亚烷基或在该多氟亚烷基中具有至少一个选自氢原子和氟原子的原子的基团 被含有可以含有醚性氧原子的多氟烷基等的取代基取代,X表示可以含有醚原子的氢原子,氟原子或C 1-3-3多氟烷基 氧原子。