中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.02 seconds)

    Process for preparing perfluoroalkenyl-sulfonyl fluorides
    1.
    发明授权
    Process for preparing perfluoroalkenyl-sulfonyl fluorides 失效

    公开(公告)号：US5103050A

    公开(公告)日：1992-04-07

    申请号：US515041

    申请日：1990-04-26

    Applicant: Walter Navarrini ,  Silvana Modena

    Inventor： Walter Navarrini ,  Silvana Modena

    IPC: C07C303/02 ,  C07C309/81

    CPC classification number: C07C303/02

    Abstract: A continuous process for preparing perfluoroalkenyl sulfonyl fluorides (I)R.sub.f --CF.dbd.CF--SO.sub.2 F (I)wherein: R.sub.f is selected from the group consisting of F and a perfluoroalkyl radical of from 1 to 9 carbon atoms is disclosed, in which as the starting compound a sultone (II) ##STR1## is used. The starting compound is placed into contact with a reactant selected from the group consisting of oxides and carbonates of an element of the Groups IA, IIA and IIB, and of the oxides of an element of the Groups IIIA and IVA of the Periodic Table of the Elements, and their mixtures, at a temperature comprised within the range of from 150.degree. to 450.degree. C., and the compound (I) is recovered from the reaction effluent. and the compound (I) is recovered from the reaction effluent.

    Process for the preparation of fluoroalkyl perfluorovinyl ethers
    2.
    发明授权
    Process for the preparation of fluoroalkyl perfluorovinyl ethers 失效
    氟代烷基全氟乙烯基醚的制备方法

    公开(公告)号：US4772756A

    公开(公告)日：1988-09-20

    申请号：US95674

    申请日：1987-09-14

    Applicant: Giorgio Bornengo ,  Michele Pontevivo ,  Antonio Marraccini ,  Silvana Modena

    Inventor： Giorgio Bornengo ,  Michele Pontevivo ,  Antonio Marraccini ,  Silvana Modena

    IPC: B01J31/02 ,  B01J31/00 ,  C07B61/00 ,  C07C41/00 ,  C07C41/18 ,  C07C43/17 ,  C07C67/00

    CPC classification number: C07C43/17 ,  C07C41/18

    Abstract: A process for the preparation of fluoroalkyl ethers of the formula: ##STR1## wherein: Y is Br or F;X is F, Cl or Br or their mixtures when n is equal to or higher than 2;n is within the range of from 0 to 4;R.sub.f represents a perfluoroalkylene radical containing from 1 to 8 carbon atoms.The process is characterized in that a fluoroalkoxy perfluoroacyl fluoride of the formula: ##STR2## is slowly heated with a salifying agent and a solvent, in the presence of a catalytic amount of N,N-dimethylformamide, with an end temperature within the range of from 60.degree. to 150.degree. C. being reached.

    Abstract translation: 一种制备下式的氟烷基醚的方法：其中：Y是Br或F; 当n等于或高于2时，X是F，Cl或Br或它们的混合物; n在0〜4的范围内; Rf表示含有1至8个碳原子的全氟亚烷基。 该方法的特征在于：在催化量的N，N-二甲基甲酰胺的存在下，用成盐剂和溶剂将下式的氟代烷氧基全氟酰基氟缓慢加热，结束温度在 达到60〜150℃的范围。

    Process for preparing bromodifluoroacetylfluoride
    3.
    发明授权
    Process for preparing bromodifluoroacetylfluoride 失效
    制备溴二氟乙酰氟的方法

    公开(公告)号：US5025105A

    公开(公告)日：1991-06-18

    申请号：US544581

    申请日：1990-06-27

    Applicant: Silvana Modena ,  Ezio Strepparola

    Inventor： Silvana Modena ,  Ezio Strepparola

    IPC: C07C51/58

    CPC classification number: C07C51/58

    Abstract: A process for preparing bromodifluoroacetylfluoride characterized in that a gaseous stream of oxygen-diluted ozone is reacted, at temperatures ranging from -100.degree. C. to +80.degree. C., with 1,4-dibromohexafluorobutene-2 optionally dissolved in a solvent which is inert under the reaction conditions, with consequent obtainment of the corresponding ozonide and, subsequently, the ozonide is subjected to a heat treatment at temperatures ranging from 100.degree. to 300.degree. C., with consequent obtainment of bromodifluoroacetylfluoride.

    Surface treatments with bifunctional perfluoropolyether derivatives
    4.
    发明授权
    Surface treatments with bifunctional perfluoropolyether derivatives 失效
    双功能全氟聚醚衍生物的表面处理

    公开(公告)号：US06221434B1

    公开(公告)日：2001-04-24

    申请号：US09450020

    申请日：1999-11-29

    Applicant: Mario Visca ,  Silvana Modena ,  Simonetta Fontana ,  Giovanni Gavazzi

    Inventor： Mario Visca ,  Silvana Modena ,  Simonetta Fontana ,  Giovanni Gavazzi

    IPC: B05D302

    CPC classification number: B82Y30/00 ,  C08G65/007 ,  C08G65/327 ,  C08G65/329 ,  C08G65/336 ,  C09K3/18

    Abstract: A surface treatment method for imparting -oil- and/or water-repellency, comprising the step of applying to the surface to be treated compositions comprising at least one compound having the formula III ACF2O—(CF2O)n(C2F4O)m—CF2—B  III where n=1-20, m=1-20 and A and B are reactive functional groups chosen independently from the group constituted by: a) CONHR, where R=CnH2n+1 with n=1-30, b) CH2OH, c) CONH(X)SiR1n(OR′)3−n, where n=0-2, R1 and R′, identical or different, are CrH2r+1 alkyl radicals, where r=1-4, and X is a bifunctional alkyl spacer of the (CHR″)m type, where m=1-20, and R″ can be H or CH3, optionally containing heteroatoms, d) —[CH2O(R′″O)p]k—P(O)(OH)3−k, where R′″ is an alkylene radical, for example C2H4 or C3H6, p=1-10 and k=1, 2, the composition comprising the compound at a suitable concentration and being applied in an amount suitable to obtain substantially at least one monolayer of the compound on the surface to be treated, the reactive groups being chosen according to the nature of the surface to be treated so as to provide interaction with the surface to be treated.

    Abstract translation: 一种用于赋予油和/或拒水性的表面处理方法，包括将待处理组合物的表面施加至包含至少一种具有式III的化合物的步骤，其中n = 1-20，m = 1-20和A 和B是独立于由以下构成的基团选择的反应性官能团：a）CONHR，其中R = C n H 2n + 1，n = 1-30，b）CH 2 OH，c）CONH（X）SiR1n（OR'）3-n， 其中n = 0-2，R1和R'相同或不同，是CrH2r + 1烷基，其中r = 1-4，X是（CHR“）m型的双官能烷基间隔基，其中m = 1-20，R“可以是H或CH 3，任选地含有杂原子，d） - [CH 2 O（R”O）p] kP（O）（OH）3-k，其中R“ 亚烷基，例如C 2 H 4或C 3 H 6，p = 1-10和k = 1,2，所述组合物包含适当浓度的化合物，并以适于在表面上获得基本上至少一种化合物单层的量施用 待处理的反应性基团是根据表面的性质来选择的 处理以提供与待处理表面的相互作用。

    Curable compositions based on fluoroelastomers vulcanizable with peroxides
    5.
    发明授权
    Curable compositions based on fluoroelastomers vulcanizable with peroxides 失效
    基于可用过氧化物硫化的含氟弹性体的固化组合物

    公开(公告)号：US5202372A

    公开(公告)日：1993-04-13

    申请号：US890376

    申请日：1992-05-26

    Applicant: Giovanni Moggi ,  Gianna Cirillo ,  Alberto Fontana ,  Silvana Modena ,  Raffaele Ferro

    Inventor： Giovanni Moggi ,  Gianna Cirillo ,  Alberto Fontana ,  Silvana Modena ,  Raffaele Ferro

    IPC: C08K5/02

    CPC classification number: C08K5/02

    Abstract: Fluoroelastomeric compositions peroxy-curable, endowed with improved characteristics of processability and compatibility, and with enhanced low-temperature properties, comprising, as additives, vinylidene fluoride cotelomers having the general formula:R[(CH.sub.2 CF.sub.2).sub.n (C.sub.3 F.sub.6).sub.m (C.sub.2 F.sub.4).sub.p (C.sub.2 F.sub.3 Cl).sub.q ]X (I)wherein:X=Br, I;R is a possible halogenated alkyl radical;n, m, p, q are integers, m, p, q may also be zero.

    Abstract translation: 具有改进的加工性能和相容性特征的氟弹性组合物，以及具有增强的低温性能，包括作为添加剂的具有以下通式的偏二氟乙烯调聚物：R [（CH 2 CF 2）n（C 3 F 6）m（C 2 F 4）p （C 2 F 3 Cl）q] X（I）其中：X = Br，I; R是可能的卤代烷基; n，m，p，q是整数，m，p，q也可以为零。

    Process for preparing perfluoroalkenyl-sulfonil fluorides
    9.
    发明授权
    Process for preparing perfluoroalkenyl-sulfonil fluorides 失效
    制备全氟烷基磺酰氟的方法

    公开(公告)号：US5103051A

    公开(公告)日：1992-04-07

    申请号：US515176

    申请日：1990-04-26

    Applicant: Walter Navarrini ,  Silvana Modena

    Inventor： Walter Navarrini ,  Silvana Modena

    IPC: C07C303/22 ,  C07C309/81

    CPC classification number: C07C303/22

    Abstract: A continuous process for preparing perfluoroalkenyl sulfonyl fluorides (I)R.sub.f --CF.dbd.CF--SO.sub.2 F (I)wherein R.sub.f is selected from the group consisting of F and a perfluoroalkyl of from 1 to 9 carbon atoms is disclosed, in which a perfluoroalkyl (sulfonyl fluoride) monofluoroacetyl fluoride of formulaR.sub.f --CF.sub.2 --CF(COF)SO.sub.2 F (II)is used as the starting product.The starting product is contacted with a reactant selected from the group consisting of the oxides of an element of the Groups IA, IIA, IIB, IIIA and IVA of the Periodic Table of the Elements, and of their mixtures, at a temperature comprised within the range of from 150.degree. to 450.degree. C., and the compound (I) is recovered from the reaction effluent.

Patent Agency Ranking