Use of (per)fluoropolyether derivatives in the treatment of substrata having a low surface energy
    1.
    发明申请
    Use of (per)fluoropolyether derivatives in the treatment of substrata having a low surface energy 失效
    (全)氟聚醚衍生物在处理具有低表面能的基质中的应用

    公开(公告)号:US20010051678A1

    公开(公告)日:2001-12-13

    申请号:US09848404

    申请日:2001-05-04

    Applicant: Ausimont S.p.A

    Inventor: Mario Visca

    Abstract: Use for improving the hydro- and oil-repellence properties of substrata having a low surface energy of (per)fluoropolyether mono- and bifunctional derivatives having the structures:WnullLnullYFCnullOnullRfnullCFYnullLnullWnullnull(I)RfnullCFYnullLnullWnullnull(II)wherein: L is a linking organic group nullCOnullNRnullnull(CH2)qnull, with RnullnullH or C1-C4 alkyl; q is comprised between 1 and 8; YnullF, CF3; W is a nullSi(R1)null(OR2)3-null group with nullnull0,1,2, R1 and R2 equal to or different from each other are C1-C6 alkyl groups, C6-C10 aryl groups, C7-C12 alkyl-aryls or aryl-alkyls; Rf has a number average molecular weight in the range 200-5,000 and comprises repeating units having at least one of the following structures:(CFXO), (CF2CF2O), (CF(CF3)CF2O), (CF2CF(CF3)O),wherein XnullF, CF3.

    Abstract translation: 用于改善具有以下结构的具有(per)含氟聚醚单官能和双功能衍生物的低表面能的基质的拒水拒油性:具有以下结构的结构:<线性配方> WL-YFC -O-Rf-CFY-LW(I) <段落lvl =“0”> Rf-CFY-LW(II) 其中:L是连接有机基团-CO-NR' - (CH 2)q - ,其中R'= H或C 1 -C 4烷基; q在1和8之间; Y = F,CF3; W是α= 0,1,2的-Si(R1)α(OR2)3-α基团,R1和R2彼此相同或不同,是C1-C6烷基,C6-C10芳基,C7- C12烷基 - 芳基或芳基 - 烷基; Rf具有200-5,000范围内的数均分子量,并且包含具有至少一个以下结构的重复单元:<片段式>(CFXO),(CF 2 CF 2 O),(CF 2 CF 2 O) CF(CF 3)CF 2 O),(CF 2 CF(CF 3)O),其中X = F,CF 3。

    PFPEs having at least an alkylether end group and respective preparation process
    2.
    发明申请
    PFPEs having at least an alkylether end group and respective preparation process 有权
    具有至少烷基醚端基的PFPE和各自的制备方法

    公开(公告)号:US20030013923A1

    公开(公告)日:2003-01-16

    申请号:US10179977

    申请日:2002-06-26

    Abstract: Perfluoropolyethers having structural formulaR1Onull(CF2O)nnull(CF2CF2O)mR2nullnull(I)wherein: R1 is nullCH3 or nullC2H5; R2 is equal to R1 or nullCF2H n is 0 or an integer from 1 to 100; m is an integer from 1 to 100 or, when R2 is nullCF2H, m can also be 0; the oxyfluoro-alkylene units null(CF2CF2O)null and null(CF2O)null are statistically distributed along the polymer chain.

    Abstract translation: 具有结构式的全氟聚醚(其中:R1是-CH3或-C2H5),其中:R1为-CH3或-C2H5(式中R1为-CH3或-C2H5) ; R2等于R1或-CF2H,n为0或1至100的整数; m为1〜100的整数,或当R2为-CF2H时,m也可为0; 氧氟基亚烷基单元 - (CF 2 CF 2 O) - 和 - (CF 2 O) - 沿聚合物链统计分布。

    Fluoropolymer dispersions
    4.
    发明申请
    Fluoropolymer dispersions 失效
    含氟聚合物分散体

    公开(公告)号:US20030092825A1

    公开(公告)日:2003-05-15

    申请号:US10325864

    申请日:2002-12-23

    CPC classification number: C09D127/18 C08L27/18 C08L2205/02 C08L2666/04

    Abstract: 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.

    Abstract translation: 含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。

    Method for removing water from surfaces
    5.
    发明申请
    Method for removing water from surfaces 失效
    从表面去除水的方法

    公开(公告)号:US20020066205A1

    公开(公告)日:2002-06-06

    申请号:US09995673

    申请日:2001-11-29

    CPC classification number: C09K3/18 C08G65/007

    Abstract: Method for removing water from surfaces of various materials, comprising the steps of covering said surface with a composition having specific weight higher than that of water and subsequently removing water from the composition by skimming, wherein a composition essentially consisting of the following components is used: a fluorinated non ionic additive component A) of formula: T-ORf(CFY)-L nullnull(I) a (per)fluoropolyether component B), wherein the ratio by weight (K) between the (per)fluorinated part and the hydrogenated L part of the additive is in the range 1.50-4.00 and the ratio KI between the number average molecular weight of the fluoropolyether part T-ORf- of the additive and the number average molecular weight of the component B) is higher than 1.60.

    Abstract translation: 用于从各种材料的表面除去水的方法,包括用具有比水重量更高的比重的组合物覆盖所述表面并随后通过撇取从组合物中除去水的步骤,其中使用基本由以下组分组成的组合物: 一种氟化非离子添加剂组分A),其结构式如下:(1)式(1)式中,T-ORf(CFY)-L(I) 组分B),其中(per)氟化部分和添加剂的氢化L部分之间的重量比(K)在1.50-4.00的范围内,并且氟聚醚部分T的数均分子量之间的比KI 组分B)的添加剂和数均分子量的ORf-高于1.60。

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