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18 条记录 (耗时 0.018 秒)

    Fluorine-containing polyether and process for preparing the same
    1.
    发明授权
    Fluorine-containing polyether and process for preparing the same 失效
    含氟聚醚及其制备方法

    公开(公告)号：US4904417A

    公开(公告)日：1990-02-27

    申请号：US201032

    申请日：1988-06-01

    申请人： Yohnosuke Ohsaka ,  Takashi Tohzuka ,  Yoshitaka Honda ,  Norio Yanagisawa

    发明人： Yohnosuke Ohsaka ,  Takashi Tohzuka ,  Yoshitaka Honda ,  Norio Yanagisawa

    IPC分类号： C08G65/18 ,  C08G65/22 ,  C08G65/323 ,  C08G65/337

    CPC分类号： C08G65/337 ,  C08G65/18 ,  C08G65/226 ,  C08G65/3236

    摘要： A fluorine-containing polyether of the formula:A--X--A'wherein A and A' are the same or different and are each --COF, --COCl or --COOH, and X is --CF.sub.2 CF.sub.2 --R.sub.f --O--C.sub.m F.sub.2m --O--R.sub.f 'CF.sub.2 CF.sub.2 -- in which R.sub.f and R.sub.f ' are the same or different and are each a group containing a perfluoroalkylpolyether group, and m is a number of from 1 to 6, and a fluorine-containing polyether of the formula:Z--X.sub.n --Z'wherein X is the same as defined above, Z and Z' are the same or different and are each --COF, --COCl, --COOH or --CF.sub.2 CF.sub.2 --R.sub.f --B in which R.sub.f is the same as defined above and B is a fluorine atom or a C.sub.1 -C.sub.5 perfluoroalkyl group, and n is a number of from 0 to 100 provided that when n is 1, Z and Z' are each --CF.sub.2 CF.sub.2 R.sub.f B, provided that when n is 0, both Z and Z' are each --CF.sub.2 CF.sub.2 R.sub.f B or when n is 1, at least one of Z and Z' is --CF.sub.2 CF.sub.2 R.sub.f B.

    Halogen-containing polyether
    3.
    发明授权
    Halogen-containing polyether 失效
    含卤素聚醚

    公开(公告)号：US4845268A

    公开(公告)日：1989-07-04

    申请号：US940191

    申请日：1986-12-09

    申请人： Yohnosuke Ohsaka ,  Takashi Tohzuka ,  Shoji Takaki

    发明人： Yohnosuke Ohsaka ,  Takashi Tohzuka ,  Shoji Takaki

    IPC分类号： C08G65/18 ,  C08G65/22 ,  C08G65/323 ,  C08G65/331

    CPC分类号： C08G65/18 ,  C08G65/223 ,  C08G65/3236 ,  C08G65/3312

    摘要： A halogen-containing polyether comprising repeating units of the formula:--(CH.sub.2 CF.sub.2 CF.sub.2 O).sub.2 --(CHClCF.sub.2 CF.sub.2 O).sub.b --(CCl.sub.2 CF.sub.2 CF.sub.2 O).sub.c --(CHFCF.sub.2 CF.sub.2 O).sub.d --(CFClCF.sub.2 CF.sub.2 O).sub.e --(CF.sub.2 CF.sub.2 CF.sub.2 O).sub.f --(I)wherein a, b, c, d, e and f are each an integer not less than 0 and satisfy the following equations:2.ltoreq.a+b+c+d+e+f.ltoreq.200and1.ltoreq.a+c+d+f,which may be prepared by ring-opening polymerizing 2,2,3,3-tetrafluorooxetane in the presence of an polymerization initiator to give a polyether comprising repeating units of the formula:--(CH.sub.2 CF.sub.2 CF.sub.2 O).sub.a -- (II)wherein a is the same as defined above, and optionally fluorinating and/or chlorinating the polyether (II).

    摘要翻译： 包含下式的重复单元的含卤聚醚： - （CH 2 CF 2 CF 2 O）2-（CHClCF 2 CF 2 O）b-（CCl 2 CF 2 CF 2 O）c-（CHClF 2 CF 2 O）d-（CFClCF 2 CF 2 O）e - （CF 2 CF 2 CF 2 O）f-（I） b，c，d，e和f各自为不小于0的整数，并满足下列等式：2

    2,2-difluoropropionic acid derivatives
    4.
    发明授权
    2,2-difluoropropionic acid derivatives 失效
    2,2-二氟丙酸衍生物

    公开(公告)号：US4719052A

    公开(公告)日：1988-01-12

    申请号：US684344

    申请日：1984-12-20

    申请人： Yohnosuke Ohsaka ,  Takashi Tohzuka ,  Shoji Takaki ,  Yoshio Negishi ,  Satoru Kohno

    发明人： Yohnosuke Ohsaka ,  Takashi Tohzuka ,  Shoji Takaki ,  Yoshio Negishi ,  Satoru Kohno

    IPC分类号： C07C53/00 ,  C07C51/58 ,  C07C53/18

    CPC分类号： C07C51/58

    摘要： 2,2,3-trifluoropropionyl fluoride is prepared by opening the ring of tetrafluorooxetane in the presence of a catalyst. Analogously, a novel 2,2-difluoropropionic acid derivative of the formula:XCH.sub.2 CF.sub.2 COY (I)wherein X is chlorine, bromine, iodine, a group of the formula:R.sub.1 O-- (II)orR.sub.2 COO-- (III)wherein R.sub.1 R.sub.2 are each an aliphaic or halogenated aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic hydrocarbon group having 6 to 8 carbon atoms optionally bearing at least one substituent, or a group of the formula:X'CH.sub.2 CF.sub.2 CF.sub.2 O-- (IV)wherein X' is fluorine, chlorine, bromine, iodine, the group of the formula: R.sub.1 O--or R.sub.2 COO--; and Y is fluorine or a group of the formula:--OR.sub.3 (V)wherein R.sub.3 is an aliphatic or halogenated aliphatic hydrocarbon group having 1 to 8 carbon atoms except a perfluorohydrocarbon group or an aromatic hydrocarbon group having 6 to 8 carbon atoms optionally bearing at least one substituent or of the formula :--OCH.sub.2 R.sub.f (V')wherein R.sub.f is an aliphatic perfluorohydrocarbon having 1 to 7 carbon atoms is prepared.

    Method for isomerization of fluorinated epoxy compounds
    5.
    发明授权
    Method for isomerization of fluorinated epoxy compounds 失效
    氟化环氧化合物的异构化方法

    公开(公告)号：US4238416A

    公开(公告)日：1980-12-09

    申请号：US7239

    申请日：1979-01-29

    申请人： Takashi Tohzuka ,  Yohnosuke Ohsaka

    发明人： Takashi Tohzuka ,  Yohnosuke Ohsaka

    IPC分类号： C07C45/58

    CPC分类号： C07C45/58

    摘要： A method for isomerization of fluorinated epoxy compounds by contacting with a catalyst to produce the corresponding fluorinated carbonyl compounds, which is characterized in that the catalyst is a fluorinated alumina or a fluorinated silica alumina.

    摘要翻译： 通过与催化剂接触以产生相应的氟化羰基化合物来异构化氟化环氧化合物的方法，其特征在于催化剂是氟化氧化铝或氟化二氧化硅氧化铝。

    Halogen-containing polyether
    6.
    发明授权
    Halogen-containing polyether 失效
    含卤素聚醚

    公开(公告)号：US4973742A

    公开(公告)日：1990-11-27

    申请号：US338036

    申请日：1989-04-14

    申请人： Yohnosuke Ohsaka ,  Takashi Tohzuka ,  Shoji Takaki

    发明人： Yohnosuke Ohsaka ,  Takashi Tohzuka ,  Shoji Takaki

    IPC分类号： C08G65/18 ,  C08G65/22 ,  C08G65/323 ,  C08G65/331

    CPC分类号： C08G65/18 ,  C08G65/223 ,  C08G65/3236 ,  C08G65/3312

    摘要： A halogen-containing polyether comprising repeating units of the formula:--(CH.sub.2 CF.sub.2 CF.sub.2 O).sub.a --(CHClCF.sub.2 CF.sub.2 O).sub.b --(CCl.sub.2 CF.sub.2 CF.sub.2 O).sub.c --(CHFCF.sub.2 CF.sub.2 O).sub.d --(CFClCF.sub.2 CF.sub.2 O).sub.e --(CF.sub.2 CF.sub.2 CF.sub.2 O).sub.f --(I)wherein a, b, c, d, e and f are each an integer not less than 0 and satisfy the following equations:2.ltoreq.a+b+c+d+e+f.ltoreq.200and1.ltoreq.a+c+d+f,which may be prepared by ring-opening polymerizing 2,2,3,3-tetrafluorooxetane in the presence of a polymerization initiator to give a polyether comprising repeating units of the formula:--(CH.sub.2 CF.sub.2 CF.sub.2 O).sub.a -- (II)wherein a is the same as defined above, and optionally fluorinating and/or chlorinating the polyether (II).

    Process for preparing hexafluoropropene oligomers
    7.
    发明授权
    Process for preparing hexafluoropropene oligomers 失效
    制备六氟丙烯低聚物的方法

    公开(公告)号：US4296265A

    公开(公告)日：1981-10-20

    申请号：US170151

    申请日：1980-07-18

    申请人： Yohnosuke Ohsaka ,  Takashi Tohzuka

    发明人： Yohnosuke Ohsaka ,  Takashi Tohzuka

    IPC分类号： C07C17/281 ,  C07C17/26

    CPC分类号： C07C17/281

    摘要： Hexafluoropropene oligomers are prepared from hexafluoropropene in a high conversion by contacting gaseous hexafluoropropene with a catalyst comprising an alkali metal fluoride supported on activated charcoal or nickel oxide.

    摘要翻译： 通过使气态六氟丙烯与负载在活性炭或氧化镍上的碱金属氟化物的催化剂接触，通过高转化率由六氟丙烯制备六氟丙烯低聚物。

    Process for preparing hexafluoropropene oxide
    8.
    发明授权
    Process for preparing hexafluoropropene oxide 失效
    制备六氟环氧丙烷的方法

    公开(公告)号：US4288376A

    公开(公告)日：1981-09-08

    申请号：US170153

    申请日：1980-07-18

    申请人： Yohnosuke Ohsaka ,  Takashi Tohzuka

    发明人： Yohnosuke Ohsaka ,  Takashi Tohzuka

    IPC分类号： C07D301/08 ,  B01J23/00 ,  C07B61/00 ,  C07D303/48

    CPC分类号： C07D303/48

    摘要： Hexafluoropropene oxide is prepared with good conversion and high selectivity by reacting hexafluoropropene with oxygen in the presence of at least one barium compound selected from the group consisting of barium oxide, barium hydroxide and barium salts as a catalyst.

    摘要翻译： 在选自氧化钡，氢氧化钡和钡盐作为催化剂的至少一种钡化合物的存在下，六氟丙烯与氧反应，通过六氟丙烯反应制备六氟丙烯氧化物，转化率高，选择性高。

    Process for preparing hexafluoropropanone-2
    9.
    发明授权
    Process for preparing hexafluoropropanone-2 失效
    制备六氟丙酮-2的方法

    公开(公告)号：US4165340A

    公开(公告)日：1979-08-21

    申请号：US826248

    申请日：1977-08-19

    申请人： Takashi Tohzuka ,  Yohnosuke Ohsaka

    发明人： Takashi Tohzuka ,  Yohnosuke Ohsaka

    IPC分类号： B01J37/28 ,  C07C45/32 ,  C07C45/04

    CPC分类号： B01J37/28 ,  C07C45/32

    摘要： A process for preparing hexafluoropropanone-2 from hexafluoropropene by one step reaction which comprises contacting hexafluoropropene and oxygen with a fluorinated alumina or a fluorinated silica-alumina as a catalyst in the presence or absence of water, provided that water is present when the catalyst is the fluorinated alumina.

    摘要翻译： 一步法由六氟丙烯制备六氟丙酮-2的方法，该方法包括在存在或不存在水的情况下将六氟丙烯和氧与氟化氧化铝或氟化二氧化硅 - 氧化铝作为催化剂接触，条件是当催化剂为 氟化氧化铝。