Electrolyte polymers for lithium rechargeable batteries
    2.
    发明授权
    Electrolyte polymers for lithium rechargeable batteries 有权
    锂可充电电池用电解质聚合物

    公开(公告)号:US06630271B1

    公开(公告)日:2003-10-07

    申请号:US09496186

    申请日:2000-02-02

    IPC分类号: H01M618

    摘要: Use of vinylidenfluoride (VDF) copolymers for preparing electrolyte polymers, wherein the VDF copolymers have the following polymeric structure (I): (CH2—CF2)m—(CXY—C(ORf)Z)n—(CF2—CF(CF3))p) wherein: Rf is a perfluoroalkyl group having from 1 to 3 carbon atoms; X, Y, and Z equal to or different from each other are selected from F, Cl or H; m,n and p are integers, n or p can be 0 but not simultaneously; said VDF copolymers being obtainable by emulsion polymerization at 75-120° C., preferably 95°-120° C., in the presence of organic initiators.

    摘要翻译: 使用偏氟乙烯(VDF)共聚物制备电解质聚合物,其中VDF共聚物具有以下聚合物结构(I):其中:Rf是具有1至3个碳原子的全氟烷基; X,Y和Z等于或不同 彼此之间选自F,Cl或H; m,n和p是整数,n或p可以是0而不是同时;所述VDF共聚物可以通过在有机引发剂的存在下在75-120℃,优选95℃-120℃的乳液聚合获得。

    Amorphous perfluoropolymers
    3.
    发明授权
    Amorphous perfluoropolymers 失效
    无定形全氟聚合物

    公开(公告)号:US5883177A

    公开(公告)日:1999-03-16

    申请号:US845145

    申请日:1997-04-21

    CPC分类号: C09D145/00 C09D127/18

    摘要: Use of amorphous perfluoropolymers based on homopolymers of the TTD dioxole or its amorphous copolymers to prepare solutions in fluoro-containing solvents, to obtain solutions for coatings, wherein TTD has the formula: ##STR1## wherein R.sub.F is a perfluoroalkylic radical with 1-5 carbon atoms, linear or branched when possible; X.sub.1 and X.sub.2 equal to or different from each other being F or CF.sub.3 ; the TTD amount ranges from 40 to 100% by moles.

    摘要翻译: 使用基于TTD二氧杂环戊烯或其无定形共聚物的均聚物的无定形全氟聚合物在含氟溶剂中制备溶液,以获得涂料溶液,其中TTD具有下式:其中RF是具有1-5个碳的全氟烷基 原子,可以是直链或支链的; X 1和X 2彼此相同或不同,是F或CF 3; TTD量为40-100摩尔%。

    Fluoroelastomers endowed with improved processability and process for
preparing them
    5.
    发明授权
    Fluoroelastomers endowed with improved processability and process for preparing them 失效
    氟弹性体具有改进的加工性和制备它们的方法

    公开(公告)号:US5219964A

    公开(公告)日:1993-06-15

    申请号:US925845

    申请日:1992-08-07

    CPC分类号: C08F214/22 C08F214/26

    摘要: Fluoroelastomers characterized by the presence of iodine or bromine atoms at the end of the polymeric chain in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, and by a bromine content in the chain ranging from 0.05 to 2% by weight referred to the total weight of the monomeric units.Said fluoroelastomers exhibit improved characteristics of processability, particularly as regards the utilization in injection molding processes and the detaching from the molds, as well as of stability to heat.A process for preparing fluoroelastomers containing iodine or bromine atoms at the ends of the polymeric chain, in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, which process comprises polymerizing mixes of fluorinated monomers (VDF, TFE, HFP, FVE) in bulk, in suspension, in aqueous emulsion, or in solution of organic solvents by means of radical starters, in the presence of compounds capable of providing I.sup.- or Br.sup.- ions in the polymerization medium and conditions.

    摘要翻译: 其特征在于聚合物链末端存在碘或溴原子,其量为每个聚合物链等于或低于1个碘或溴原子,并且链中的溴含量为0.05-2重量% 指单体单元的总重量。 所述含氟弹性体表现出改进的加工性能,特别是关于注射成型工艺的利用和从模具的分离以及对热的稳定性。 在聚合物链的末端制备含有碘或溴原子的含氟弹性体的方法,其量等于或低于每个聚合物链1个碘或溴原子,该方法包括将氟化单体(VDF,TFE,HFP, FVE)在悬浮液中,在水性乳液中,或在有机溶剂的溶液中,通过自由基引发剂在能够在聚合介质和条件下提供I-或Br离子的化合物存在下进行。

    Fluorinated thermoplastic elastomers
    6.
    发明授权
    Fluorinated thermoplastic elastomers 有权
    氟化热塑性弹性体

    公开(公告)号:US06207758B1

    公开(公告)日:2001-03-27

    申请号:US09210394

    申请日:1998-12-14

    IPC分类号: C08L5300

    摘要: Compositions containing fluorinated thermoplastic elastomers with different moelcular weight and with different plastomeric phase/elastomeric phase ratio, essentially formed by: (a) 30-80% by weight, preferably 50-80%, of a fluorinated thermoplastic elastomer, having a block structure of A-B-A type, wherein A is a plastomeric segment and B is an elastomeric segment; (b) 10-50% by weight, preferably 20-40% of a fluorinated thermoplastic elastomer having a block structure of A-B-A type; (c) 0-30% by weight, preferably 0-15%, of a fluorinated plastomer preferably of the same kind as that contained in the component (a) and/or (b).

    摘要翻译: 含有不同摩尔重量且具有不同塑性相/弹性体相比的氟化热塑性弹性体的组合物,基本上由以下组成:(a)30-80重量%,优选50-80重量%的氟化热塑性弹性体, ABA型,其中A是塑性链段,B是弹性链段;(b)具有ABA型嵌段结构的氟化热塑性弹性体的10-50%重量,优选20-40%;(c)0-30 优选与组分(a)和/或(b)中所含的相同种类的氟化塑性体的重量%,优选0-15%。

    Polyvinylidenefluoride having high mechanical properties and high
thermochemical stability and the preparation process thereof
    8.
    发明授权
    Polyvinylidenefluoride having high mechanical properties and high thermochemical stability and the preparation process thereof 失效
    具有高机械性能和高热稳定性的聚偏二氟乙烯及其制备方法

    公开(公告)号:US5583190A

    公开(公告)日:1996-12-10

    申请号:US534671

    申请日:1995-09-27

    IPC分类号: C08F14/22 C08F4/32 C08F114/22

    CPC分类号: C08F114/22

    摘要: A polyvinylidenefluoride (PVDF) having high mechanical properties both at room temperature and at high temperatures, having very good processability and high thermochemical resistance to dehydrofluorination, is prepared by means of a polymerization process of vinylidenefluoride in aqueous emulsion at a temperature comprised between 95.degree. and 120.degree. C., in the presence of a chain transfer agent. In this way it is possible to obtain, using non-hazardous peroxidic initiators (for instance diterbutylperoxide), a PVDF particularly suitable for applications where high mechanical and thermochemical resistance properties are required, such as for instance the manufacture of articles for chemical industry (pipes, valves, fittings, tanks, heat exchangers, membranes, flanges, etc.).

    摘要翻译: 在室温和高温下具有高机械性能的聚偏二氟乙烯(PVDF),具有非常好的加工性能和对脱氟化氢的高耐热化学性能,是通过聚偏二氟乙烯在水乳液中的温度在95°和 120℃,在链转移剂存在下。 以这种方式,可以使用非危险的过氧化物引发剂(例如二叔丁基过氧化物)获得特别适用于需要高机械和耐热化学性能的应用的PVDF,例如用于化学工业的制品(管道 ,阀门,配件,罐,热交换器,膜,法兰等)。

    Fluoroelastomers based on vinylidene fluoride exhibiting superior
resistance to organic bases
    9.
    发明授权
    Fluoroelastomers based on vinylidene fluoride exhibiting superior resistance to organic bases 失效
    基于偏氟乙烯的氟弹性体显示出优异的耐有机碱性

    公开(公告)号:US5264509A

    公开(公告)日:1993-11-23

    申请号:US15063

    申请日:1993-02-08

    CPC分类号: C08F214/265 C08F214/225

    摘要: Fluoroelastomeric copolymers exhibiting high resistance to bases and alcohols, as well as high mechanical properties and low-temperature resistance, comprising, in moles:4-75% of units of vinylidene fluoride;12-40% of units of hexafluoropropene and/or perfluorovinylether and/or hydropentafluoropropene and/or chlorotrifluoroethylene;2-35% of units of an olefin containing up to 4 carbon atoms;2-60% of units of tetrafluoroethylene, provided that, when the sum of the olefin units and the perfluorovinylether units is equal to or greater than 70%, such copolymers possess a molecular weight sufficiently high to exhibit good mechanical characteristics.

    摘要翻译: 显示出对碱和醇的高抗性以及高机械性能和耐低温性的氟弹性共聚物,摩尔数:4-75%的偏二氟乙烯单元; 12-40%的六氟丙烯和/或全氟乙烯基醚和/或氢五氟丙烯和/或氯三氟乙烯的单元; 2-35%含有至多4个碳原子的烯烃单元; 2-60%的四氟乙烯单元,条件是当烯烃单元和全氟乙烯基醚单元的总和等于或大于70%时,这种共聚物的分子量足够高以表现出良好的机械特性。