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    • 3. 发明授权
    • Mixtures of fluoropolymer dispersions
    • 含氟聚合物分散体的混合物
    • US06660798B1
    • 2003-12-09
    • US09588625
    • 2000-06-07
    • Enrico MarcheseMario ViscaDaria Lenti
    • Enrico MarcheseMario ViscaDaria Lenti
    • C08K300
    • D06M15/256C08L27/18C08L2205/02C09D127/18C08L2666/04
    • 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.
    • 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。
    • 4. 发明授权
    • Fluoropolymer dispersions
    • 含氟聚合物分散体
    • US06359044B1
    • 2002-03-19
    • US09881696
    • 2001-06-18
    • Valerio BiancardiEnrico MarcheseFabio Polastri
    • Valerio BiancardiEnrico MarcheseFabio Polastri
    • C08K543
    • C08J3/03C08J2327/18
    • 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.
    • 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。