Fluorocopolymer
    1.
    发明授权
    Fluorocopolymer 有权
    含氟共聚物

    公开(公告)号:US07205367B2

    公开(公告)日:2007-04-17

    申请号:US11023486

    申请日:2004-12-29

    摘要: A fluorocopolymer which comprises (a) polymerized units based on tetrafluoroethylene and/or chlorotrifluoroethylene, (b) polymerized units based on a fluorinated monomer (excluding tetrafluoroethylene and chlorotrifluoroethylene) and (c) polymerized units based on at least one member selected from the group consisting of itaconic acid, itaconic anhydride, citraconic acid and citraconic anhydride, wherein (a) is from 50 to 99.8 mol %, (b) is from 0.1 to 49.99 mol %, and (c) is from 0.01 to 5 mol %, based on ((a)+(b)+(c)), and which has a volume flow rate of from 0.1 to 1000 mm3/sec.

    摘要翻译: 一种含氟共聚物,其包含(a)基于四氟乙烯和/或氯三氟乙烯的聚合单元,(b)基于氟化单体的聚合单元(不包括四氟乙烯和氯三氟乙烯)和(c)基于选自以下的至少一种的聚合单元: 的衣康酸,衣康酸酐,柠康酸和柠康酸酐,其中(a)为50〜99.8摩尔%,(b)为0.1〜49.99摩尔%,(c)为0.01〜5摩尔%,基于 ((a)+(b)+(c)),体积流量为0.1〜1000mm 3 / sec。

    Method for producing a tetrafluoroethylene/perfluoro(alkyl vinyl ether) type copolymer
    3.
    发明授权
    Method for producing a tetrafluoroethylene/perfluoro(alkyl vinyl ether) type copolymer 有权
    制备四氟乙烯/全氟(烷基乙烯基醚)型共聚物的方法

    公开(公告)号:US06528600B2

    公开(公告)日:2003-03-04

    申请号:US09910831

    申请日:2001-07-24

    IPC分类号: C08F242

    摘要: A method for producing a tetrafluoroethylene/perfluoro (alkyl vinyl ether) type copolymer (PFA), which comprises carrying out the polymerization in a polymerization medium (such as CHFClCF2CF2Cl) in the presence of a chain transfer agent of a C1 or 2 hydrofluorocarbon (such as CH3CF2H) by means of a polymerization initiator (such as (FCF2CF2CF2COO)2). PFA obtained by this method has a small amount of unstable terminal groups contained in its molecule and is excellent in thermal stability and cracking resistance against a liquid reagent. Further, the amount of elution of fluorine ions is little even when it is applied to a component of e.g. an equipment for the production of semiconductors.

    摘要翻译: 一种四氟乙烯/全氟(烷基乙烯基醚)型共聚物(PFA)的制造方法,其包括在C1或2氢氟烃的链转移剂(例如CHFClCF 2 CF 2 Cl)的存在下在聚合介质(如CHFClCF 2 CF 2 Cl)中进行聚合 作为CH 3 CF 2 H)通过聚合引发剂(如(FCF 2 CF 2 CF 2 COO)2))。 通过该方法获得的PFA在其分子中含有少量不稳定的末端基团,并且对液体试剂的热稳定性和耐龟裂性优异。 另外,氟离子的洗脱量即使施加于例如乙烯的成分也很少。 半导体生产设备。

    Fluorocopolymer
    4.
    发明授权
    Fluorocopolymer 有权
    含氟共聚物

    公开(公告)号:US07273645B2

    公开(公告)日:2007-09-25

    申请号:US10756312

    申请日:2004-01-14

    IPC分类号: B32B1/08

    摘要: A fluorocopolymer which comprises (A) polymerized units based on tetrafluoroethylene, (B) polymerized units based on ethylene and (C) polymerized units based on itaconic anhydride or citraconic anhydride, wherein the molar ratio of (A)/(B) is from 20/80 to 80/20, and the molar ratio of (C)/((A)+(B)) is from 1/10000 to 5/100, and which has a volume flow rate of from 1 to 1000 mm3/sec. The fluorocopolymer is excellent in the fuel barrier properties and in the adhesive properties to a non-fluorinated polymer.

    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)基于衣康酸酐或柠康酸酐的聚合单元,其中(A)/(B)的摩尔比为20 / 80〜80/20,(C)/((A)+(B))的摩尔比为1/10000〜5/100,体积流量为1〜1000mm 3 /秒。 含氟共聚物在非氟化聚合物中的燃料阻隔性和粘合性方面是优异的。

    Tetrafluoroethylene/perfluoro (alkyl vinyl ether) copolymer and method for its production
    6.
    发明授权
    Tetrafluoroethylene/perfluoro (alkyl vinyl ether) copolymer and method for its production 有权
    四氟乙烯/全氟(烷基乙烯基醚)共聚物及其制备方法

    公开(公告)号:US06737490B2

    公开(公告)日:2004-05-18

    申请号:US10304965

    申请日:2002-11-27

    IPC分类号: C08F11418

    摘要: A tetrafluoroethylene (TFE)/perfluoro (alkyl vinyl ether) (PVE) copolymer and a method for producing the copolymer, wherein the molar ratio of polymerized units based on TFE/polymerized units based on PVE is in the range of from 98.1/1.9 to 95.0/5.0, and its melt flow rate at 372° C. is from 35 to 60 g/10 min., and a weight-average molecular weight/a number-average molecular weight is from 1 to 1.7. The copolymer of TFE/PVE is excellent in the mechanical properties and the injection molding properties.

    摘要翻译: 四氟乙烯(TFE)/全氟(烷基乙烯基醚)(PVE)共聚物和共聚物的制造方法,其中基于PVE的基于TFE /聚合单元的聚合单元的摩尔比在98.1 / 1.9〜 95.0 / 5.0,其在372℃下的熔体流动速率为35〜60g / 10分钟,重均分子量/数均分子量为1〜1.7。 TFE / PVE的共聚物的机械性能和注塑性能优异。

    Fluorocopolymer
    7.
    发明授权
    Fluorocopolymer 有权
    含氟共聚物

    公开(公告)号:US06703465B2

    公开(公告)日:2004-03-09

    申请号:US10361690

    申请日:2003-02-11

    IPC分类号: C08F11416

    摘要: A fluorocopolymer which comprises (A) polymerized units based on tetrafluoroethylene, (B) polymerized units based on ethylene and (C) polymerized units based on itaconic anhydride or citraconic anhydride, wherein the molar ratio of (A)/(B) is from 20/80 to 80/20, and the molar ratio of (C)/((A)+(B)) is from 1/10000 to 5/100, and which has a volume flow rate of from 1 to 1000 mm3/sec. The fluorocopolymer is excellent in the fuel barrier properties and in the adhesive properties to a non-fluorinated polymer.

    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)基于衣康酸酐或柠康酸酐的聚合单元,其中(A)/(B)的摩尔比为20 / 80〜80/20,(C)/((A)+(B))的摩尔比为1/10000〜5/100,体积流量为1〜1000mm 3 > /秒。 含氟共聚物在非氟化聚合物中的燃料阻隔性和粘合性方面是优异的。

    Fluorocopolymer
    10.
    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。