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27 条记录 (耗时 0.014 秒)

    Aliphatic compounds containing oxygen atoms
    7.
    发明授权
    Aliphatic compounds containing oxygen atoms 失效
    含氧原子的脂肪族化合物

    公开(公告)号：US3923902A

    公开(公告)日：1975-12-02

    申请号：US10291870

    申请日：1970-12-30

    申请人： ICI LTD

    发明人： FIELDING HAROLD CROSBIE

    IPC分类号： C07C45/00 ,  C07C45/87 ,  C07C49/167 ,  C07C49/173 ,  C07C49/88 ,  C07C51/295 ,  C07C53/21 ,  C07C49/04

    CPC分类号： C07C53/21 ,  C07C45/00 ,  C07C45/87 ,  C07C49/167 ,  C07C49/173 ,  C07C49/88 ,  C07C51/295

    摘要： Oligomers of tetrafluoroethylene (C2F4)n where n is 4 to 6 react at 25*-100*C with aqueous solutions of sodium or potassium hydroxides to give novel oxygen-containing derivatives in which the oxygen is located in hydroxyl, carbonyl or carboxyl groups. With 5-15% by weight solutions of the hydroxides the tetramer yields a tertiary alcohol; the pentamer yields the ketone (C2F5)2(CF3)C.CH2COCF3, and hexamer yields a mixture of the ketone (C4F9)(C2F5)(CF3)C.CH2COCF3 and the ketene (C2F5)2(CF3)C.C(CO).CF(CF3)(C2F5). With 30-60% solutions the pentamer yields the acid (C2F5)2(CF3)C.CH2COOH. These oligomer derivatives are intermediates for making surfactants and oleophobic compounds for application to textiles and leather.

    摘要翻译： 其中n为4-6的四氟乙烯（C 2 F 4）n的低聚物与氢氧化钠或氢氧化钾水溶液在25℃下反应，得到新的含氧衍生物，其中氧位于羟基，羰基或羧基中。 使用5-15重量％的氢氧化物溶液，四聚体产生叔醇; 五聚体产生酮（C2F5）2（CF3）C.CH2COCF3，六聚体产生酮（C4F9）（C2F5）（CF3）C.CH2COCF3和烯酮（C2F5）2（CF3）CC（CO） CF（CF 3）（C 2 F 5）。 用30-60％的溶液，五聚体产生酸（C 2 F 5）2（CF 3）C .CH 2 COOH。 这些低聚物衍生物是用于制造用于纺织品和皮革的表面活性剂和疏油性化合物的中间体。

    Perfluoromethylpropionylketene
    8.
    发明授权
    Perfluoromethylpropionylketene 失效
    全氟代丙烯酸酯

    公开(公告)号：US3825599A

    公开(公告)日：1974-07-23

    申请号：US26712672

    申请日：1972-06-28

    申请人： DU PONT

    发明人： ENGLAND D

    IPC分类号： C07C43/17 ,  C07C45/87 ,  C07C49/88 ,  C07D309/38 ,  C07D493/04 ,  D06M13/133 ,  C07C49/22

    CPC分类号： C07D493/04 ,  C07C43/17 ,  C07C45/87 ,  C07C49/88 ,  C07D309/38 ,  D06M13/133

    摘要： 2-(TRIFLUOROMETHYL)PERFLUOROPENTENE-2 REACTS WITH AN ALKALI METAL LOWER ALKOXIDE TO GIVE CIS- AND TRANS-ALKYL-2(TRIFLUOROMETHYL)-1,1,4,4,5,5,5-HEPTAFLUORO-3-ALKOXYPENT2-ENYL ETHER WHICH IS THEN REACTED WITH SULFUR TRIOXIDE TO GIVE PERFLUOROOMETHYL PROPIONYLKETENE. ON CONTACTING PERFLUOROMETHYLPROPIONYLKETENE WITH AN ALKALI METAL FLUORIDE IN A POLAR SOLVENT BETWEEN ROOM TEMPERATURE AND 150*C., THREE PRODUCTS ARE OBTAINED, THE PROPORTIONS VARYING WITH THE CONDITONS. WITH A CATALYTIC AMOUNT OF ALKALI METAL FLUORIDE OR SILVER OXIDE THE PRODUCT IS MAINLY A DIMER BELOW 60*C. ABOVE 60*C. A PYRANOPYRAN-2,5-DIONE IS FORMED. IF AN EQUI-MOLAR AMOUNT OF ALKALI METAL FLUORIDE IS EMPLOYED THE PRODUCT IS A METAL DERIVATIVE OF PYRAN-4ONE. PERFLUOROMETHYLPROPIONYLKETENE AND THE ABOVE DERIVATIVES ARE ALL USEFUL AS WATERPROOFING AGENTS FOR TEXTILES AND PAPER. ALSO DISCLOSED IS A METHOD OF SEPARATING PERFLUOROMETHYLPROPIONYLKETENE FROM BY-PRODUCT ALKYL SULFONATES BY CONTACTING THE MIXED VAPORS WITH AN ALKALI METAL FLUORIDE AT 250*C. TO 700*C.

    Process for making perfluoroalkylacetic acid
    9.
    发明授权
    Process for making perfluoroalkylacetic acid 失效
    制备全氟甘油酸的方法

    公开(公告)号：US3632641A

    公开(公告)日：1972-01-04

    申请号：US3632641D

    申请日：1968-01-19

    申请人： ICI LTD

    发明人： FIELDING HAROLD CROSBIE

    IPC分类号： C07C45/00 ,  C07C45/87 ,  C07C49/167 ,  C07C49/88 ,  C07C51/00 ,  C07C49/06 ,  C07C29/00 ,  C07C53/18

    CPC分类号： C07C45/00 ,  C07C45/87 ,  C07C49/167 ,  C07C49/88 ,  C07C51/00 ,  Y10S516/06 ,  C07C53/21

    摘要： OLIGOMERS OF TETRAFLUOROETHYLENE (C2F4)N WHERE N IS 4 TO 6 REACT AT 25*-100*C. WITH AQUEOUS SOLUTIONS OF SODIUM OR POTASSIUM HYDROXIDES TO GIVE NOVEL OXYGEN-CONTAINING DERIVATIVES IN WHICH THE OXYGEN IS LOCATED IN HYDROXYL, CARBONYL OR CARBONYL GROUPS. WITH 5-15% BY WEIGHT SOLUTIONS OF THE HYDROXIDES THE TETRAMER YIELDS A TERTIARY ALCOHOL; THE PENTAMER YIELDS THE KETONE

    (C2F6)2CF3)C.CH2COCF3

    AND HEXAMER YIELDS A MIXTURE OF THE KETONE

    (C4F9)C2F5)(CF3)C.CH2COCF3

    AND THE KETONE (C2F5)2(CF3)C.C(CO).CF(CF3)(C2F5); WITH 30-60% SOLUTIONS THE PENTAMER YIELDS THE ACID (C2F5)2(CF3)C.CH2COOH. THESE OLIGOME DERIVATIVES ARE INTERMEDIATES FOR MAKING SURFACTANTS AND OLEOPHOBIC COMPOUNDS FOR APPLICATION TO TEXTILES AND LEATHER.