Dehumidifying method
    1.
    发明授权
    Dehumidifying method 失效
    除湿方法

    公开(公告)号:US5620500A

    公开(公告)日:1997-04-15

    申请号:US418445

    申请日:1995-04-07

    IPC分类号: B01D53/22 B01D53/26 B01D71/32

    摘要: A dehumidifying method which comprises contacting a gas containing water vapor to one side of a vapor permselective membrane, while contacting a dry gas to the other side of the membrane, to let the water vapor selectively permeate through the membrane, wherein the membrane is made of an ion exchange membrane having ion exchange groups, of which counter ions are partly or entirely substituted by metal ions.

    摘要翻译: 一种除湿方法,其包括将含有水蒸气的气体接触到蒸气选择性渗透膜的一侧,同时将干燥气体接触到膜的另一侧,以使水蒸气选择性渗透通过膜,其中膜由 具有离子交换基团的离子交换膜,其中抗衡离子部分或全部被金属离子取代。

    ISOPRENE-BASED POLYMER CYCLIZED PRODUCT, ALICYCLIC POLYMER, AND OPTICAL RESIN
    2.
    发明申请
    ISOPRENE-BASED POLYMER CYCLIZED PRODUCT, ALICYCLIC POLYMER, AND OPTICAL RESIN 审中-公开
    基于异丙烯的聚合物循环产物,ALICYCLIC POLYMER和光学树脂

    公开(公告)号:US20110098434A1

    公开(公告)日:2011-04-28

    申请号:US12988232

    申请日:2009-04-17

    IPC分类号: C08F136/08

    CPC分类号: C08C19/10 C08C19/02 C08L15/00

    摘要: An isoprene-based polymer cyclized product obtained by cyclization of an isoprene-based polymer containing structural units expressed by the general formula (1) and having a ratio of content of the structural units to all repeating structural units of 60 mol % or more; an alicyclic polymer obtained by hydrogenation of 50% or more of the carbon-carbon double bonds of the isoprene-based polymer; and an optical resin comprising the isoprene-based polymer cyclized product and alicyclic polymer. (in the general formula (1), R1 indicates a C1 to C10 alkyl group).

    摘要翻译: 通过使含有由通式(1)表示的结构单元的异戊二烯系聚合物环化而得到的异戊二烯系聚合物环化产物,其结构单元的含量与所有重复结构单元的比例为60摩尔%以上; 通过氢化异戊二烯类聚合物的碳 - 碳双键的50%以上而获得的脂环族聚合物; 以及包含异戊二烯基聚合物环化产物和脂环族聚合物的光学树脂。 (通式(1)中,R1表示C1〜C10烷基)。

    Process for producing cycloolefin addition polymer, catalyst for addition polymerization of cycloolefin, and transition metal compound
    3.
    发明申请
    Process for producing cycloolefin addition polymer, catalyst for addition polymerization of cycloolefin, and transition metal compound 有权
    环烯加成聚合物的制造方法,环烯烃的加成聚合用催化剂和过渡金属化合物

    公开(公告)号:US20090124769A1

    公开(公告)日:2009-05-14

    申请号:US12073704

    申请日:2008-03-07

    IPC分类号: C08F4/42 C07F17/00 C08F4/52

    摘要: A process for producing a cycloolefin addition polymer comprising addition-polymerizing a cycloolefin in the presence of a catalyst comprising a combination of a specific transition metal compound of Group 4 of the Periodic Table, with an organoaluminum oxy compound, and/or a compound capable of reacting with the Group 4 transition metal compound to form an ion pair. The specific group 4 transition metal compound preferably has a structure such that the group 4 transition metal is bonded to a cyclopentadienyl ring in an η1 mode. The above-mentioned catalyst exhibits high activity for both of addition homopolymerization of a cycloolefin and addition copolymerization of a cycloolefin with an α-olefin.

    摘要翻译: 一种制备环烯加成聚合物的方法,包括在包含周期表第4族的特定过渡金属化合物与有机铝氧化合物的组合的催化剂存在下,将环烯加成聚合,和/或能够 与第4族过渡金属化合物反应形成离子对。 特别的第4族过渡金属化合物优选具有使第4族过渡金属以eta1模式键合到环戊二烯基环上的结构。 上述催化剂对于环烯烃的加成均聚和环烯烃与α-烯烃的加成共聚均显示出高活性。

    Process for producing cycloolefin addition polymer, catalyst for addition polymerization of cycloolefin, and transition metal compound
    4.
    发明授权
    Process for producing cycloolefin addition polymer, catalyst for addition polymerization of cycloolefin, and transition metal compound 有权
    环烯加成聚合物的制造方法,环烯烃的加成聚合用催化剂和过渡金属化合物

    公开(公告)号:US07868107B2

    公开(公告)日:2011-01-11

    申请号:US12073704

    申请日:2008-03-07

    摘要: A process for producing a cycloolefin addition polymer comprising addition-polymerizing a cycloolefin in the presence of a catalyst comprising a combination of a specific transition metal compound of Group 4 of the Periodic Table, with an organoaluminum oxy compound, and/or a compound capable of reacting with the Group 4 transition metal compound to form an ion pair. The specific group 4 transition metal compound preferably has a structure such that the group 4 transition metal is bonded to a cyclopentadienyl ring in an η1 mode. The above-mentioned catalyst exhibits high activity for both of addition homopolymerization of a cycloolefin and addition copolymerization of a cycloolefin with an α-olefin.

    摘要翻译: 一种制备环烯加成聚合物的方法,包括在包含周期表第4族的特定过渡金属化合物与有机铝氧化合物的组合的催化剂存在下,将环烯加成聚合,和/或能够 与第4族过渡金属化合物反应形成离子对。 特别的第4族过渡金属化合物优选具有使第4族过渡金属以“1”模式结合到环戊二烯基环上的结构。 上述催化剂对环烯烃的均相聚合和环烯烃与α-烯烃的加成共聚均显示出高活性。

    Norbornene Addition Copolymer and Moldings
    5.
    发明申请
    Norbornene Addition Copolymer and Moldings 审中-公开
    降冰片烯加成共聚物和木线条

    公开(公告)号:US20090018296A1

    公开(公告)日:2009-01-15

    申请号:US11886672

    申请日:2006-03-24

    IPC分类号: C08F132/08

    摘要: A norbornene addition copolymer obtained by subjecting a norbornene monomer (A), an aromatic vinyl compound (B), and an α-olefin having 2 to 20 cabon atoms (C) to addition copolymerization, the sum of the content of repeating units derived from the norbornene monomer (A) and the content of repeating units derived from the aromatic vinyl compound (B) being 25 to 90 mol % based on the total repeating units, and the content of repeating units derived from the aromatic vinyl compound (B) being 0.55 to 10 (mol) times the content of repeating units derived from the norbornene monomer (A); and a molded article obtained by molding the norbornene addition copolymer. According to the present invention, a norbornene addition copolymer exhibiting excellent transparency, a high refractive index, and a small intrinsic birefringence value, and a molded article obtained by molding the norbornene addition copolymer are provided.

    摘要翻译: 通过将降冰片烯单体(A),芳族乙烯基化合物(B)和具有2-20个碳原子(C)的α-烯烃进行加成共聚而得到的降冰片烯加成共聚物,来自 降冰片烯单体(A)的含量和衍生自芳香族乙烯基化合物(B)的重复单元的含量相对于全部重复单元为25〜90摩尔%,芳香族乙烯基化合物(B)的重复单元的含量为 从降冰片烯单体(A)衍生的重复单元的含量为0.55〜10(摩尔)倍; 以及通过将降冰片烯类加成共聚物成型得到的成型品。 根据本发明,提供了显示出优异的透明性,高折射率和小的固有双折射值的降冰片烯加成共聚物和通过模塑降冰片烯加成共聚物而获得的模制品。