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公开(公告)号：US06982308B2
公开(公告)日：2006-01-03
申请号：US10970009
申请日：2004-10-22
IPC分类号： C08F214/26
摘要： A formulation based on the PTFE, homopolymer or modified, comprising: 1) latex of said PTFE having a particle diameter between 5 and 100 nm, comprising an anionic fluorinated surfactant in an amount in the range 2–25% by weight based on the PTFE; 2) a non ionic fluorinated surfactant added to the PTFE latex in an amount in the range 18–60% by weight based on the PTFE.
摘要翻译： 基于PTFE，均聚物或改性的制剂，其包含：1）具有5至100nm粒径的所述PTFE的胶乳，其包含基于PTFE的2-25重量％范围内的量的阴离子氟化表面活性剂 ; 2）添加到PTFE胶乳中的非离子氟化表面活性剂，其量为基于PTFE的18-60重量％。
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公开(公告)号：US20050261454A1
公开(公告)日：2005-11-24
申请号：US10970009
申请日：2004-10-22
IPC分类号： C08L27/18 , C08F214/26 , C08J3/03 , C08K5/03 , C08K5/04 , C08K5/06 , C08K5/09 , C08K5/098 , C08K5/42 , C08L71/02 , H01B3/44 , C08F214/18
摘要： A formulation based on the PTFE, homopolymer or modified, comprising: 1) latex of said PTFE having a particle diameter between 5 and 100 nm, comprising an anionic fluorinated surfactant in an amount in the range 2-25% by weight based on the PTFE; 2) non ionic fluorinated surfactant added to the PTFE latex in an amount in the range 18-60% by weight based on the PTFE.
摘要翻译： 基于PTFE，均聚物或改性的制剂，其包含：1）具有5至100nm粒径的所述PTFE的胶乳，其包含基于PTFE的2-25重量％范围内的量的阴离子氟化表面活性剂 ; 2）加入到PTFE胶乳中的非离子氟化表面活性剂，其量为基于PTFE的18-60重量％。
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公开(公告)号：US06479591B2
公开(公告)日：2002-11-12
申请号：US09907821
申请日：2001-07-19
IPC分类号： C08L2712
CPC分类号： C08F259/08
摘要： Fine powders of modified PTFE having a “core-shell” structure; the fine powder being formed by: a “core” of tetrafluoroethylene (TFE) modified by one or more monomers selected from: a) dioxoles; b) one or more perfluorinated monomers which cyclize during the polymerization; a “shell” of TFE modified by perfluoropropene (PFP); the amount, referred to the total core+shell particle, of comonomers 1) in the “core” being in the range 0.01-0.06% by weight; the amount, referred to the total core+shell particle, of perfluoropropene 2) in the “shell” being in the range 0.002-0.06% by weight; the thermal instability index (TII) of the fine powder being equal to or lower than 5, determined according to ASTM D4895.
摘要翻译： 具有“核 - 壳”结构的改性PTFE的细粉末; 该细粉末由以下一种或多种单体改性的四氟乙烯（TFE）的“芯”形成：a）二氧杂环戊烯; b）在聚合过程中环化的一种或多种全氟化单体;由TFE改性的TFE的“壳” 全氟丙烯（PFP）; “芯”中的共聚单体1）的总核心+壳粒子的量在0.01-0.06重量％的范围内; “壳”中的全氟丙烯2的总核+壳粒子的量，在0.002-0.06重量％范围内;细粉末的热不稳定指数（TII）等于或小于5 ，根据ASTM D4895测定。
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公开(公告)号：US20060189760A1
公开(公告)日：2006-08-24
申请号：US11305107
申请日：2005-12-19
IPC分类号： C08L27/12
CPC分类号： C08L27/12 , C08L27/18 , C08L29/10 , C08L2205/02 , C08L2666/04
摘要： Fluoropolymers comprising a fluoroelastomer matrix incorporating therein particles of a semicrystalline fluoropolymer formed of tetrafluoroethylene (TFE) homopolymers or copolymers, wherein the average particle sizes of the semicrystalline fluoropolymer latex range from 10 to 100 nm.
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公开(公告)号：US06660798B1
公开(公告)日：2003-12-09
申请号：US09588625
申请日：2000-06-07
申请人： Enrico Marchese , Mario Visca , Daria Lenti
发明人： Enrico Marchese , Mario Visca , Daria Lenti
IPC分类号： C08K300
CPC分类号： D06M15/256 , C08L27/18 , C08L2205/02 , C09D127/18 , C08L2666/04
摘要： Mixtures of fluoropolymer dispersions comprising: a) one or more dispersions constituted by TFE homopolymers or by its copolymers with particle average sizes ranging from 180 to 400 nm; b) one or more TFE copolymer dispersions with one or more monomers containing at least one ethylene unsaturation, the comonomer amount being such that the dispersion contains a number of fibrils lower than 10% of the total number of particles; said fibrils being polymer particles having a length/diameter (L/D) ratio higher than 5; the dispersion particle average sizes are smaller of about 90 nm; the component b) contains a comonomer amount such that the resulting polymer is not elastomeric and furthermore it shows composition and viscosity characteristics of the melt such as not to be thermoprocessable.
摘要翻译： 含氟聚合物分散体的混合物包括：a）由TFE均聚物或其平均尺寸范围为180-400nm的共聚物制成的一种或多种分散体; b）一种或多种TFE共聚物分散体与一种或多种含有至少一个乙烯不饱和度的单体 共聚单体的量使得分散体含有低于总颗粒数的10％的多个原纤维; 所述原纤维是长度/直径（L / D）比高于5的聚合物颗粒; 分散颗粒的平均尺寸小于约90nm; 组分b）包含共聚单体的量，使得所得聚合物不是弹性体，此外它显示熔体的组成和粘度特性，例如不是热可加工的。
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公开(公告)号：US06359044B1
公开(公告)日：2002-03-19
申请号：US09881696
申请日：2001-06-18
IPC分类号： C08K543
CPC分类号： C08J3/03 , C08J2327/18
摘要： Fluoropolymer aqueous dispersions comprising an hydrogenated nonionic surfactant and a fluorinated nonionic surfactant selected from the following classes: Rf—L—(OCH(R1)—CH(R2))n—O—A (I) wherein: n is an integer comprised between 4 and 60; L is selected from: —(CF(Y)—CO—O)pR′—; —(CF(Y)—CO—NH)pR′—; —(CF(Y)—SO2—NH)pR′—; wherein: p is 0 or 1; Y can be F or CF3; R′ is an alkylic radical C1-C5; R1, R2 can preferably be both H or the former H and the latter CH3, Rf can be a radical of (per)fluoroalkane type from 4 to 20 C atoms or of (per)fluoropolyether type; A is selected from the following ones: —H; —CH, —CH2OH; —CH2OCH2CH2OH; —CH2(OCH2CH2)n′″OR′ wherein n′″ is an integer between 2 and 15 and R′ is H, CH3, COCH3; —CONHCH2CH2OH.
摘要翻译： 含有氢化非离子表面活性剂和氟化非离子表面活性剂的含氟聚合物水性分散体，其选自以下类别：其中：n是4至60之间的整数; L选自： - （CF（Y）-CO-O）pR'- ; - （CF（Y）-CO-NH）pR' - ; - （CF（Y）-SO2-NH）pR' - ;其中：p为0或1; Y可以是F或CF3; R'是烷基基团C 1 -C 5; R 1，R 2可优选同时为H或前者H，后者为CH 3，R f可为4-至20个C原子的（全）氟烷烃基团或（全）氟聚醚 类型; A从以下选项中选择：-H; -CH，-CH 2 OH; -CH 2 OCH 2 CH 2 OH; -CH 2（OCH 2 CH 2）n“'OR'其中n”是2和15之间的整数，R'是H，CH 3，COCH 3; -CONHCH2CH2OH。
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公开(公告)号：US06518352B1
公开(公告)日：2003-02-11
申请号：US09343238
申请日：1999-06-30
申请人： Mario Visca , Daria Lenti , Marco Malvasi , Enrico Marchese
发明人： Mario Visca , Daria Lenti , Marco Malvasi , Enrico Marchese
IPC分类号： C08L2700
CPC分类号： C09D127/18 , C08L27/18 , C08L2205/02 , C08L2666/04
摘要： Mixtures of fluoropolymer dispersion, wherein: a) a dispersion is formed by TFE (co)polymers with average particle sizes in the range 180-400 nm; b) another dispersion selected from: 1) (co)polymer dispersion of TFE; 2) thermoplastic copolymers of TFE; the average particle sizes of dispersion b) range from 20 to 60 nm; the ratio between the particle sizes of dispersion b) compared with those of dispersion a) is lower than 0.3.
摘要翻译： 氟聚合物分散体的混合物，其中：a）通过TFE（共）聚合物形成分散体，平均粒径在180-400nm范围内; b）选自以下的另一种分散体：1）TFE的（共）聚合物分散体; 2） TFE的热塑性共聚物;分散体b）的平均粒径为20〜60nm，分散体b）的粒径与分散体a）的比例小于0.3。
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公开(公告)号：US06277906B1
公开(公告)日：2001-08-21
申请号：US09705699
申请日：2000-11-06
IPC分类号： C08K0543
CPC分类号： C08J3/03 , C08J2327/18
摘要： Fluoropolymer aqueous dispersions comprising an hydrogenated nonionic surfactant and a fluorinated nonionic surfactant selected from the following classes: Rf—L—(OCH(R1)—CH(R2) )n—O—A (I) wherein: n is an integer comprised between 4 and 60; L is selected from: —(CF(Y)—CO—O)pR′—; —(CF(Y)—CO—NH)pR′—; —(CF(Y)—SO2—NH)pR′—; wherein: p is 0 or 1; Y can be F or CF3; R′ is an alkylic radical C1-C5; R1, R2 can preferably be both H or the former H and the latter CH3, Rf can be a radical of (per)fluoroalkane type from 4 to 20 C atoms or of (per)fluoropolyether type; A is selected from the following ones: —H; —CH, —CH2OH; —CH2OCH2CH2OH; —CH2(OCH2CH2)n′″OR′ wherein n′″ is an integer between 2 and 15 and R′ is H, CH3, COCH3; —CONHCH2CH2OH.
摘要翻译： 含有氢化非离子表面活性剂和氟化非离子表面活性剂的含氟聚合物水性分散体，其选自以下类别：其中：n是4至60之间的整数; L选自： - （CF（Y）-CO-O）pR'- ; - （CF（Y）-CO-NH）pR'-; - （CF（Y）-SO 2 -NH）pR' - ;其中：p为0或1; Y可以是F或CF3; R'是烷基基团C 1 -C 5; R 1，R 2可优选同时为H或前者H，后者为CH 3，R f可为4-至20个C原子的（全）氟烷烃基团或（全）氟聚醚 类型; A从以下选项中选择：-H; -CH，-CH 2 OH; -CH 2 OCH 2 CH 2 OH; -CH 2（OCH 2 CH 2）n“'OR'其中n”是2和15之间的整数，R'是H，CH 3，COCH 3; -CONHCH2CH2OH。
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公开(公告)号：US06262209B1
公开(公告)日：2001-07-17
申请号：US09235407
申请日：1999-01-22
IPC分类号： C08F21426
CPC分类号： C08F214/262
摘要： Method for preparing modified PTFE by suspension, wherein as comonomers perfluoroalkylvinylethers in which the alkyl has from 1 to 5 carbon atoms, and/or a perfluorodioxole are used, characterized by the following conditions: a part of the comonomer, from 15 to 90% by weight of the total amount is to be fed at the beginning of the reaction; the remaining part of the comonomer is to be distributed during the reaction so as to obtain a constant speed of the comonomer incorporation in the polymer chain; a perfluorinated surfactant and a buffering salt are used; a persulphate with a reducing agent is used as initiator in such a ratio as to generate a part of the radicals from the redox reaction and another one from the persulphate thermal decomposition; one operates with a polymerization pressure from 15 to 30 bar.
摘要翻译： 通过悬浮液制备改性PTFE的方法，其中使用其中烷基具有1至5个碳原子的共聚单体全氟烷基乙烯基醚和/或全氟二恶烷，其特征在于以下条件：一部分共聚单体为15〜90％ 总量的重量在反应开始时进料; 共聚单体的剩余部分将在反应期间分布，以获得聚合物链中共聚单体引入的恒定速度;使用全氟化表面活性剂和缓冲盐;将具有还原剂的过硫酸盐用作引发剂 这种比例从氧化还原反应产生一部分自由基，另一种来自过硫酸盐热分解;一种以15至30巴的聚合压力进行操作。
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公开(公告)号：US06174979B1
公开(公告)日：2001-01-16
申请号：US09121091
申请日：1998-07-23
IPC分类号： C08F11612
CPC分类号： C08J3/03 , C08J2327/18
摘要： Fluoropolymer aqueous dispersions comprising an hydrogenated nonionic surfactant and a fluorinated nonionic surfactant selected from the following classes: Rf—L—(OCH(R1)—CH(R2))n—O—A (I) wherein: n is an integer comprised between 4 and 60; L is selected from: —(CF(Y)—CO—O)pR′—; —(CF(Y)—CO—NH)pR′—; —(CF(Y)—SO2—NH)pR′—; wherein: p is 0 or 1; Y can be F or CF3; R′ is an alkylic radical C1-C5; R1, R2 can preferably be both H or the former H and the latter CH3, Rf can be a radical of (per)fluoroalkane type from 4 to 20 C atoms or of (per)fluoropolyether type; A is selected from the following ones: —H; —CH, —CH2OH; —CH2OCH2CH2OH; —CH2(OCH2CH2)n′″OR′ wherein n′″ is an integer between 2 and 15 and R′ is H, CH3, COCH3; —CONHCH2CH2OH.
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