-
公开(公告)号：US4835305A
公开(公告)日：1989-05-30
申请号：US181327
申请日：1988-04-13
IPC分类号： C07C69/653 , C07C51/58 , C07C67/14 , C07C67/30 , C07C69/63
CPC分类号： C07C305/00 , C07C51/58
摘要： A trifluoroacrylate has been prepared by reacting hexafluoropropene with halogen fluorosulfate (halogen X:Cl, Br or I), eliminating the fluorosulfate CF.sub.3 --CFX--CF.sub.2 --OSO.sub.2 F to give the acid fluoride CF.sub.3 --CFX--COF, esterifying the acid fluoride and dehalogenating the product using a metal component.
摘要翻译： 通过六氟丙烯与卤代氟代硫酸盐（卤素X：Cl，Br或I）反应制备三氟丙烯酸酯，除去氟硫酸盐CF3-CFX-CF2-OSO2F，得到酸式氟化物CF3-CFX-COF，酯化酸式氟化物和脱卤 产品使用金属部件。
-
公开(公告)号：US4933388A
公开(公告)日：1990-06-12
申请号：US290360
申请日：1988-12-27
IPC分类号： C08L27/12 , C08F10/00 , C08F210/02 , C08F214/26 , C08J3/09 , C08L23/08 , C08L23/28 , C08L27/18 , C09D123/08 , D01F6/12 , D01F6/30 , D01F6/32
CPC分类号： D01F6/32 , C08J3/093 , C08L27/12 , D01F6/30 , C08L2205/02 , C08L23/08 , C08L23/28 , C08L27/18
摘要： Solutions of copolymers of the tetrafluoroethylene/ethylene typeCopolymer solutions comprising tetrafluoroethylene, ethylene and, as appropriate, further .alpha.-olefinic monomers in low-molecular-weight polymers of chlorotrifluoroethylene are described. They can be used for coatings, impregnations, cast films and for the production of fibers and filaments by gel spinning.
摘要翻译： 描述了四氟乙烯/乙烯型共聚物的溶液，其包含四氟乙烯，乙烯和适当的另外的α-烯烃单体在氯三氟乙烯的低分子量聚合物中的共聚物溶液。 它们可用于涂料，浸渍，流延膜和通过凝胶纺丝生产纤维和长丝。
-
公开(公告)号：US4987254A
公开(公告)日：1991-01-22
申请号：US389367
申请日：1989-08-03
IPC分类号： B01J27/12 , B01J27/135 , C07B61/00 , C07C51/58 , C07C59/135
CPC分类号： C07C51/58
摘要： Fluorinated carboxylic acid fluorides of the formula I ##STR1## can be prepared from fluorinated vinyl ethers of the formula II ##STR2## by reacting the vinyl ethers with an oxygen-containing gas in the presence of a catalytic amount of a Lewis acid. Perfluorinated carboxylic acids and derivatives thereof can be prepared from the carboxylic acid fluorides by secondary reactions, for example hydrolysis, esterification or aminolysis.
摘要翻译： 式I（I）的氟化羧酸氟化物可以由式II（II）的氟化乙烯基醚通过乙烯基醚与含氧气体在催化量的 路易斯酸。 全氟羧酸及其衍生物可以通过二次反应由羧酸氟化物制备，例如水解，酯化或氨解。
-
公开(公告)号：US4808651A
公开(公告)日：1989-02-28
申请号：US96653
申请日：1987-09-15
申请人： Peter Blickle , Klaus Hintzer , Gernot Lohr , Werner Schwertfeger
发明人： Peter Blickle , Klaus Hintzer , Gernot Lohr , Werner Schwertfeger
CPC分类号： C08J5/2237 , B01D65/108 , B01D67/0011 , B01D71/32 , C08J3/095 , B01D2323/12 , C08J2327/12
摘要： The invention relates to solutions of fluoropolymers which preferably contain carbonate groups, in solvents of the general formula (I) ##STR1## These solutions are suitable, in particular, for the production of membranes for liquid permeation processes, such as electrolysis.
摘要翻译： 本发明涉及在通式（I）的溶剂中优选含有碳酸酯基的含氟聚合物的溶液。（I）这些溶液特别适用于生产用于液体渗透方法如电解的膜。
-
公开(公告)号：US4640750A
公开(公告)日：1987-02-03
申请号：US801761
申请日：1985-11-26
申请人： Peter Blickle
发明人： Peter Blickle
摘要： 3-Hydroxy-3-methylglutaric acid is prepared by electrolysis of an aqueous alkaline solution of 3-methyl-1,3,5-pentanetriol using anodes coated with nickel oxide/hydroxide NiO(OH) and conventional cathodes, followed by acidification of the alkaline solution and conventional working up. The yields achieved by this are always between about 70 and 85% of theory.
摘要翻译： 3-羟基-3-甲基戊二酸通过使用用氧化镍/氢氧化物NiO（OH）和常规阴极涂覆的阳极电解3-甲基-1,3,5-戊三醇的碱性水溶液来制备，然后酸化 碱性溶液和常规加工。 由此实现的产量始终在理论的约70％至85％之间。
-
公开(公告)号：US5301254A
公开(公告)日：1994-04-05
申请号：US768778
申请日：1991-11-07
IPC分类号： C08F16/14 , C08F214/26 , C08F216/14 , C08L27/18 , G02B1/04 , G02B6/00
CPC分类号： C08F216/14 , C08F214/262 , G02B1/045
摘要： A transparent thermoplastic molding compound consisting of 40 to 90% by weight of units derived from tetrafluoroethylene, and 60 to 10% by weight of units derived from compounds of formula I or II:CF.sub.2 .dbd.CF--O--(CF.sub.2 --CF(CF.sub.3)--O).sub.m --(CF.sub.2).sub.n --CF.sub.3 (I)CF.sub.2 .dbd.CF--O--(CF.sub.2 --CF(CF.sub.3)--O).sub.p --(CF.sub.2).sub.q --COO--R (II)is particularly suitable for manufacturing the sheath of beam waveguides whose core has a higher transparency than polymethyl methacrylate.
摘要翻译： PCT No.PCT / EP90 / 00585第 371日期1991年11月7日 102（e）1991年11月7日PCT PCT 1990年4月13日提交PCT公布。 出版物WO90 / 12043 日本1990年10月18日。由40〜90重量％衍生自四氟乙烯的单元和60〜10重量％衍生自式I或II化合物的单元组成的透明热塑性模塑料：CF 2 = CF-O- （CF2-CF（CF3）-O）m-（CF2）n-CF3（I）CF2 = CF-O-（CF2-CF（CF3）-O）对 - （CF2）q-COO-R 特别适用于制造其核心具有比聚甲基丙烯酸甲酯更高透明度的光束波导鞘。
-
公开(公告)号：US4985594A
公开(公告)日：1991-01-15
申请号：US389271
申请日：1989-08-03
IPC分类号： C07C51/58 , C07C53/50 , C07C59/135
CPC分类号： C07C51/58
摘要： Process for the preparation of fluorinated carboxylic acid fluoridesFluorinated carboxylic acid fluorides of the Formula I ##STR1## can be prepared from fluorinated vinyl ethers of the Formula II ##STR2## by heating the vinyl ethers to a temperature of 100.degree. to 350.degree. C.Perfluorinated carboxylic acids and derivatives thereof can be prepared from the carboxylic acid fluorides by secondary reactions, for example hydrolysis, esterification or aminolysis.
摘要翻译： 氟化氟化物的制备方法式I的氟化羧酸氟化物可以通过将乙烯基醚加热至100℃，由式II的氟化乙烯基醚制备（II） 全氟羧酸及其衍生物可以通过二次反应由羧酸氟化物制备，例如水解，酯化或氨解。
-
8.发明授权Process for the preparation of fluorocarbon polymers containing carboxyl groups, and certain starting materials required for this, and the fluoro-sulfato compounds formed as intermediate products in the process 失效制备含有羧基的氟碳聚合物的方法，以及所需的某些原料以及在该方法中形成为中间产物的氟 - 硫酸酯化合物
公开(公告)号：US4471076A
公开(公告)日：1984-09-11
申请号：US467179
申请日：1983-02-16
CPC分类号： C08F8/12 , C08F2800/10
摘要： Substantially non-crosslinked fluorocarbon polymers containing carboxyl groups are prepared starting from non-crosslinked and in some cases new, fluorocarbon polymers in which the linear macromolecules carry side chains containing the end group --CHFX (X is F or CF.sub.3). The starting polymers are first reacted with peroxodisulfuryl difluoride FSO.sub.2 O--OSO.sub.2 F to give the corresponding fluorosulfato derivatives containing the side chain end groups. ##STR1## In the event that X is F, these derivaties are then converted into the corresponding carboalkoxy derivatives by means of an alcohol, the fluorosulfato group being split off, and these carboalkoxy derivatives are then converted by saponification into the products containing the free carboxyl groups; the fluorosulfato derivatives can also be hydrolyzed with water, if appropriate in the presence of an inert solvent and/or bases, to give, without further treatment, the products containing the free carboxyl groups.The fluorosulfato derivatives in which X is CF.sub.3 in the side chain end groups are first decomposed in the presence of catalytic amounts of alkali metal fluorides and/or aprotic nitrogen bases to give the products containing the side chain end groups ##STR2## and the latter are then hydrolyzed to give the products containing the free carboxyl group.Virtually non-crosslinked fluorocarbon polymers containing carboxyl groups are of industrial importance in the form of cation exchanger membranes in electrolytic cells, particularly in chlor-alkali electrolysis.
摘要翻译： 含有羧基的基本上非交联的碳氟化合物聚合物是从非交联的，在某些情况下，新的含有端基-CHFX（X是F或CF 3）的侧链的大分子的氟碳聚合物开始制备的。 起始聚合物首先与过氧二硫代氟化二氟FSO 2 O-OSO 2 F反应，得到含有侧链端基的相应的氟代磺酰基衍生物。 （X是F或CF3）。 在X为F的情况下，这些衍生物然后通过醇转化成相应的烷氧基衍生物，将氟代磺酰基分解，然后将这些烷氧羰基衍生物通过皂化转化成含有游离羧基的产物; 如果在惰性溶剂和/或碱存在的情况下，氟磺酸衍生物也可以用水水解，得到含有游离羧基的产物，无需进一步处理。 在侧链端基中X为CF 3的氟代硫脲衍生物首先在催化量的碱金属氟化物和/或非质子氮碱的存在下分解，得到含有侧链端基的产物，并且后者为 然后水解，得到含有游离羧基的产物。 含有羧基的几乎不交联的碳氟化合物聚合物在电解槽中的阳离子交换膜的形式具有工业上的重要性，特别是在氯碱电解中。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.012 秒)
