Fluoropolymers with improved characteristics
    2.
    发明授权
    Fluoropolymers with improved characteristics 有权
    具有改进特性的含氟聚合物

    公开(公告)号:US06489420B1

    公开(公告)日:2002-12-03

    申请号:US09604178

    申请日:2000-06-27

    IPC分类号: C08F21422

    摘要: A fluoropolymer composition is provided. The polymer comprises interpolymerized units derived from (i) tetrafluoroethylene, (ii) vinylidene fluoride, (iii) at least one ethylenically unsaturated monomer of the formula CF2═CFRf where Rf is a perfluoroalkyl or a perfluoroalkoxy of 1 to 8 carbon atoms, and (iv) a perfluorovinyl ether of the formula CF2═CF—(OCF2CF(Rf))aOR′f where Rf is as described in (iii), R′f is a perfluoroaliphatic, preferably a perfluoroalkyl or a perfluoroalkoxy, of 1 to 8, preferably 1 to 3, carbon atoms, and a has a value of 0 to 3.

    摘要翻译: 提供含氟聚合物组合物。 聚合物包含衍生自(i)四氟乙烯,(ii)偏二氟乙烯,(iii)至少一种式CF 2 = CFR f的烯键式不饱和单体的共聚单元,其中Rf是1至8个碳原子的全氟烷基或全氟烷氧基,和( iv)式CF 2 = CF-(OCF 2 CF(R f))aOR'f的全氟乙烯醚,其中R f如(iii)中所述,R 1f是1至8的全氟脂族基,优选全氟烷基或全氟烷氧基, 优选为1〜3个碳原子,a为0〜3。

    Fluoropolymers with improved characteristics
    3.
    发明授权
    Fluoropolymers with improved characteristics 有权
    具有改进特性的含氟聚合物

    公开(公告)号:US06610807B2

    公开(公告)日:2003-08-26

    申请号:US10190096

    申请日:2002-07-03

    IPC分类号: C08F21422

    摘要: A fluoropolymer composition is provided. The polymer comprises interpolymerized units derived from (i) tetrafluoroethylene, (ii) vinylidene fluoride, (iii) at least one ethylenically unsaturated monomer of the formula CF2═CFRf where Rf is a perfluoroalkyl or a perfluoroalkoxy of 1 to 8 carbon atoms, and (iv) a perfluorovinyl ether of the formula CF2═CF—(OCF2CF(Rf))aORf where Rf is as described in (iii), Rf is a perfluoroaliphatic, preferably a perfluoroalkyl or a perfluoroalkoxy, of 1 to 8, preferably 1 to 3, carbon atoms, and a has a value of 0 to 3.

    摘要翻译: 提供含氟聚合物组合物。 聚合物包含衍生自(i)四氟乙烯,(ii)偏二氟乙烯,(iii)至少一种式CF 2 = CFR f的烯键式不饱和单体的共聚单元,其中Rf是1至8个碳原子的全氟烷基或全氟烷氧基,和( iv)式CF 2 = CF-(OCF 2 CF(R f))aOR f的全氟乙烯基醚,其中Rf如(iii)中所述,Rf是1至8,优选1至3的全氟脂族基,优选全氟烷基或全氟烷氧基 ,碳原子,a的值为0〜3。

    Process for producing fluoropolymers having a reduced amount of polar end groups
    4.
    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。

    Emulsifier free aqueous emulsion polymerization to produce copolymers of a fluorinated olefin and hydrocarbon olefin
    5.
    发明授权
    Emulsifier free aqueous emulsion polymerization to produce copolymers of a fluorinated olefin and hydrocarbon olefin 失效
    无乳化剂水性乳液聚合制备氟化烯烃和烃烯烃的共聚物

    公开(公告)号:US07064170B2

    公开(公告)日:2006-06-20

    申请号:US10690088

    申请日:2003-10-21

    IPC分类号: C08F12/20

    CPC分类号: C08F214/18

    摘要: Provided is a process for making a copolymer of fluorinated olefin and hydrocarbon olefin selected from ethylene, propylene and mixtures thereof, the process comprising a substantially emulsifier free aqueous emulsion polymerization of said fluorinated olefin and said hydrocarbon olefin, optionally in the presence of fluoropolymer particles and/or fluorinated liquid in a form suitable to improve the copolymerization of fluorinated olefin and hydrocarbon olefin.

    摘要翻译: 提供了制备氟化烯烃和选自乙烯,丙烯及其混合物的烃烯烃的共聚物的方法,该方法包括所述氟化烯烃和所述烃烯烃的基本上无乳化剂的水乳液聚合,任选在含氟聚合物颗粒和 /或氟化液体,其形式适合改善氟化烯烃和烃烯烃的共聚。

    Ultraclean fluoroelastomer suitable for use in the manufacturing of electronic components
    6.
    发明授权
    Ultraclean fluoroelastomer suitable for use in the manufacturing of electronic components 有权
    Ultraclean含氟弹性体适用于制造电子元器件

    公开(公告)号:US06943228B2

    公开(公告)日:2005-09-13

    申请号:US10627461

    申请日:2003-07-25

    CPC分类号: C08F214/18 C08F214/184

    摘要: A curable fluoroelastomer composition for preparing a perfluoroelastomer. The composition includes; (1) a perfluoropolymer having one or more cure-sites selected from a halogen capable of participating in peroxide cure reaction and/or nitrile groups; (2) an organic peroxide and/or a compound capable of effecting curing of the perfluoropolymer through said nitrile groups; and (3) optionally a polyunsaturated coagent. The perfluoropolymer in the composition is essentially free of ionic end groups and the total amount of metal cations in the composition is not more than 10 μg/g perfluoropolymer. The perfluoroelastomers may be obtained from curing the composition in a sufficiently low amount of metal cations so as to make the fluoroelastomer suitable for use in the semi-conductor industry.

    摘要翻译: 一种用于制备全氟弹性体的可固化的含氟弹性体组合物。 组合物包括: (1)具有一个或多个选自能够参与过氧化物固化反应的卤素和/或腈基的固化位点的全氟聚合物; (2)有机过氧化物和/或能够通过所述腈基实现全氟聚合物固化的化合物; 和(3)任选的多不饱和助剂。 组合物中的全氟聚合物基本上不含离子端基,组合物中金属阳离子的总量不超过10mug / g全氟聚合物。 全氟弹性体可以通过以足够低量的金属阳离子固化组合物获得,以使得氟弹性体适用于半导体工业。

    Treatment of fluorocarbon feedstocks
    9.
    发明授权
    Treatment of fluorocarbon feedstocks 失效
    氟碳原料的处理

    公开(公告)号:US07252744B2

    公开(公告)日:2007-08-07

    申请号:US10203527

    申请日:2001-02-09

    IPC分类号: B01J19/08

    摘要: A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical arc and a plasma gas, an upwardly burning thermal plasma having a tail flame, allowing a solid particulate fluorocarbon feedstock comprising at least on fluorocarbon compound to form a reactive thermal mixture with the thermal plasma tail flame, with the fluorocarbon compound dissociating into at least one fluorocarbon precursor or reactive species, and cooling the reactive thermal mixture to form, from the fluorocarbon precursor of reactive species, at least one more desirable fluorocarbon compound.

    摘要翻译: 处理碳氟化合物原料的方法包括在高温区域中,在至少一个阴极和至少一个阳极之间产生电弧,在高温区域中产生电弧,通过电弧和等离子体气体产生向上 燃烧具有尾焰的热等离子体,允许至少包含氟碳化合物的固体颗粒状碳氟化合物原料与热等离子体尾焰形成反应性热混合物,氟碳化合物解离成至少一种氟碳前体或反应性物质,并冷却 反应性热混合物从反应性物质的碳氟前体形成至少一种更理想的碳氟化合物。