Fluorocopolymer
    2.
    发明授权
    Fluorocopolymer 有权
    含氟共聚物

    公开(公告)号:US06753393B2

    公开(公告)日:2004-06-22

    申请号:US10356536

    申请日:2003-02-03

    IPC分类号: C08F11418

    CPC分类号: C08F214/265

    摘要: A fluorocopolymer which comprises (A) polymerized units based on tetrafluoroethylene, (B) polymerized units based on ethylene and (C) polymerized units based on a compound represented by CH2═CX(CF2)2Y (wherein each of X and Y which are independent of each other, is a hydrogen atom or a fluorine atom), wherein the molar ratio of (A)/(B) is from 20/80 to 80/20, and the molar ratio of (C)/((A)+(B)) is from 1/1000 to 15/100, and which has a volume flow rate of from 1 to 1000 mm3/sec. The fluorocopolymer has a low fuel permeability coefficient and is excellent in the fuel barrier properties.

    摘要翻译: 一种含氟共聚物,其包含(A)基于四氟乙烯的聚合单元,(B)基于乙烯的聚合单元和(C)基于由CH 2 = CX(CF 2)2 Y表示的化合物的聚合单元(其中X和Y各自独立地 (A)/(B)的摩尔比为20/80〜80/20,摩尔比(C)/((A)+ (B))为1/1000〜15/100,体积流量为1〜1000mm 3 / sec。 含氟共聚物的燃料渗透系数低,燃料阻隔性优异。

    Optical adhesive coating having low refractive index
    3.
    发明授权
    Optical adhesive coating having low refractive index 失效
    光学胶粘剂涂层具有低折射率

    公开(公告)号:US06703463B2

    公开(公告)日:2004-03-09

    申请号:US10102157

    申请日:2002-03-19

    IPC分类号: C08F11418

    摘要: This invention is directed to optical adhesives useful in light transmitting devices, and more particularly to fluorosubstituted monoacrylate based adhesives having low refractive index. The optical adhesive of the present invention is soluble in organic solvents, and in particular, in non-fluorinated organic solvents. The polymer of the optical adhesive of the present invention has a low glass transition temperature and has the ability to bond well with substrates, including glass substrates and polyethylene terephthalate polyester film substrates typically used in optical devices. The invention is further directed to transfer tapes comprised of at least one layer of a fluorosubstituted monoacrylate based adhesive.

    摘要翻译: 本发明涉及可用于透光装置的光学粘合剂,更具体地涉及具有低折射率的氟取代的单丙烯酸酯基粘合剂。 本发明的光学胶粘剂可溶于有机溶剂,特别是在非氟化有机溶剂中。 本发明的光学粘合剂的聚合物具有低的玻璃化转变温度,并且具有与通常用于光学器件中的玻璃基底和聚对苯二甲酸乙二醇酯聚酯薄膜基材的基底良好结合的能力。 本发明还涉及由至少一层氟取代的单丙烯酸酯基粘合剂组成的转移带。

    Fluoromonomer polymerization
    4.
    发明授权
    Fluoromonomer polymerization 失效
    含氟单体聚合

    公开(公告)号:US06399729B1

    公开(公告)日:2002-06-04

    申请号:US09450106

    申请日:1999-11-29

    IPC分类号: C08F11418

    CPC分类号: C08F14/18 C08F2/38

    摘要: Chain transfer agents that are chlorine-free and liquid under polymerization conditions, useful for fluoromonomer polymerization, have the following formula: R1—O—R2. They are superior to common chain transfer agents such as chloroform in being safer and environmentally benign. They are also superior to gaseous chain transfer agents such as ethane because they do not enter the fluoromonomer gas recycle streams and so do not complicate the analysis and purification of those streams.

    摘要翻译: 在聚合条件下无氯和液态的可用于含氟单体聚合的链转移剂具有以下结构式:它们比常规的链转移剂如氯仿在更安全和环境友好方面优越。 它们还优于气态链转移剂如乙烷,因为它们不进入含氟单体气体循环流,因此不会使这些流的分析和纯化复杂化。

    Process for producing fluoropolymers having a reduced amount of polar end groups
    5.
    发明授权
    Process for producing fluoropolymers having a reduced amount of polar end groups 有权
    制备极性端基量少的含氟聚合物的方法

    公开(公告)号:US06812310B2

    公开(公告)日:2004-11-02

    申请号:US10452523

    申请日:2003-06-02

    IPC分类号: C08F11418

    CPC分类号: C08F214/262 C08F214/267

    摘要: A fluoropolymer having a reduced amount of polar end groups. The fluoropolymer is produced by free radical polymerization of fluorinated monomers and the initiation of the polymerization is carried out in the presence of a chloride salt. Polar end groups include hydroxy groups and ionized or ionizable end groups. Examples of ionized or ionizable end groups include acid groups and salts thereof such as sulfonic acid and salts thereof, —CH2—OSO3H groups, sulfates and carbonyl containing end groups such as carboxylic and carboxylate groups. Due to the presence of chloride salt at the initiation of the free radical polymerization, CF2Cl end groups are formed instead of the polar end groups. As a result, a fluoropolymer is obtained that has improved processibility and heat resistance.

    摘要翻译: 具有极性端基量减少的含氟聚合物。 含氟聚合物通过氟化单体的自由基聚合制备,并且聚合的引发在氯化物盐的存在下进行。 极性端基包括羟基和电离或可离子化端基。 电离或可离子化端基的实例包括酸基及其盐,例如磺酸及其盐,-CH 2 -OSO 3 H基,硫酸酯和含羰基的端基如羧酸和羧酸酯基。 由于在自由基聚合开始时存在氯化物盐,而是形成CF 2 Cl端基,而不是极性端基。 结果,得到具有改善的加工性和耐热性的含氟聚合物。

    Process for producing fluoropolymer
    8.
    发明授权
    Process for producing fluoropolymer 有权
    生产含氟聚合物的方法

    公开(公告)号:US06716942B1

    公开(公告)日:2004-04-06

    申请号:US09913152

    申请日:2001-08-10

    IPC分类号: C08F11418

    摘要: A process for preparing a fluoropolymer by polymerizing one or more radically polymerizable monomers comprising at least one fluoroolefin monomer in the presence of a radical polymerization initiator and as case demands, an inactive fluorocarbon and chain transfer agent in a reaction field where at least one of components forming the reaction field is in a supercritical state. According to the preparation process, generation of unstable end groups of the polymer, a decrease in a purity and complicated post-treatment can be eliminated.

    摘要翻译: 一种通过在自由基聚合引发剂的存在下聚合一种或多种包含至少一种氟代烯烃单体的可自由基聚合的单体并根据需要在反应领域中使用无活性氟代烃和链转移剂来制备含氟聚合物的方法,其中至少一种组分 形成反应场处于超临界状态。 根据制备方法,可以消除聚合物不稳定端基的产生,纯度降低和后处理复杂。

    Fluorine-containing elastomer composition
    9.
    发明授权
    Fluorine-containing elastomer composition 失效
    含氟弹性体组合物

    公开(公告)号:US06602961B1

    公开(公告)日:2003-08-05

    申请号:US08500714

    申请日:1995-07-11

    IPC分类号: C08F11418

    CPC分类号: C08K5/18 C08L27/12

    摘要: A fluorine-containing elastomer composition comprising a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) and perfluoro(&ohgr;-cyanoalkyl vinyl ether) and a bisaminophenyl compound represented by the following general formula as a curing agent: wherein A is an alkylidene group having 1 to 6 carbon atoms, a perfluoroalkylidene group having 1 to 10 carbon atoms, a SO2 group, an O group, a CO group, or a carbon-carbon bond capable of directly coupling two benzene rings; and X and Y each are a hydroxyl group or an amino group can give a rubbery vulcanization product with a good processability and good physical properties by a commercially available cross-linking agent free from any safety problem.

    摘要翻译: 包含四氟乙烯,全氟(低级烷基乙烯基醚)和全氟(ω-氰基烷基乙烯基醚)的三元共聚物和由以下通式表示的二氨基苯基化合物作为固化剂的含氟弹性体组合物:其中A是具有 1至6个碳原子,具有1至10个碳原子的全氟亚烷基,可以直接键合两个苯环的SO 2基团,O基团,CO基团或碳 - 碳键; X和Y各自为羟基或氨基可以通过市售的无任何安全问题的交联剂得到具有良好加工性和良好物理性能的橡胶状硫化产品。