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    • 2. 发明申请
    • Process for preparing peroxidic perfluoropolyethers
    • 制备过氧化全氟聚醚的方法
    • US20060205921A1
    • 2006-09-14
    • US11366598
    • 2006-03-03
    • Giuseppe MarchionniPier GuardaElvira Pagano
    • Giuseppe MarchionniPier GuardaElvira Pagano
    • C08G73/24
    • C08G65/007
    • A process for preparing peroxidic perfluoropolyethers having a perioxidic content (PO) lower than or equal to 1.2 of formula A-CF2O(CF2CF2O)m(CF2O)n—(CF2CF2OO)m1(CF2OO)n1CF2—B  (I) Wherein A, B equal to or different from each other are —C1, —F, —F2CC1, —COF, —OCOF, —CF3, m, m1, n, n1 are integers such that the (m+m1)/(n+n1) ratio is between 0.6 and 1.3 and the m/n ration is between 0.5 and 1.2; the number average molecular weight is in the range 35,000-45,000, by tetrafluoroethylene (TFE) photooxidation in the presence of UV light, at a temperature from −80° C. to −40° C., in the presence of a mixture of solvents formed of HFC-227 (hepta-fluoropropane) and a solvent selected between HFC-125 (pentafluoroethane) and FC-218 (perfluoropropane).
    • 一种制备过氧化全氟聚醚的方法,该过氧化全氟聚醚具有低于或等于式(β)的1.2的线型式描述=“在线公式”中的最大值=“铅”→A-CF2 (CF 2 O 2)O(CF 2 O 2)O(CF 2 O 2)n(CF 2 O 2)n (CF 2 O 2)m1(CF 2 O 2)n1(CF 2 O 2)n1 其中A,B等于或不同于每一个,其中A,B等于或不同于每个 其它是-C1,-F,-F2C1,-COF,-OCOF,-CF3,m,m1,n,n1是整数,使得( m + m1)/(n + n1)的比例在0.6和1.3之间,m / n比在0.5和1.2之间; 在UV光的存在下,在-80℃至-40℃的温度下,在溶剂混合物存在下,数均分子量在35,000-45,000范围内,通过四氟乙烯(TFE)光氧化 由HFC-227(七氟丙烷)和选自HFC-125(五氟乙烷)和FC-218(全氟丙烷)之间的溶剂形成。
    • 3. 发明申请
    • Process for preparing perfluoropolyethers
    • 制备全氟聚醚的方法
    • US20050075517A1
    • 2005-04-07
    • US10953764
    • 2004-09-30
    • Giuseppe MarchionniElvira PaganoPier Guarda
    • Giuseppe MarchionniElvira PaganoPier Guarda
    • C07C41/01C07C43/12C08G65/00C08G65/323C07C43/20
    • C08G65/3236C08G65/007
    • A process to obtain perfluoropolyethers comprising: a) synthesis of the peroxidic perfluoropolyether by one of the following reactions: a1) TFE photooxidation, in the presence of UV light, at low temperature, in solvents selected between perfluorocarbons and (mono)hydrofluorocarbons, of general formula: CyF(2y+2−x)Hx   (II) wherein y is an integer from 2 to 4; x is an integer equal to 0 or 1; in the presence of fluorine diluted with an inert gas; or a2) TFE oxidation using as radical initiator fluorine or hypofluorites of formula RfOF (III) (Rf pefluoroalkyl radical from 1 to 3 carbon atoms), operating from −40° C. to −100° C. at a pressure comprised between 0 and 12 bar, in an inert solvent under the reaction conditions; b) thermal treatment of the product obtained in a) at a temperature from 150° C. to 250° C., optionally in the presence of a regulating agent of the molecular weight selected between fluorine or hypofluorite of formula (III); c) treatment with elemental fluorine of the polymer obtained in step b) at temperatures from 100° C. to 250° C., or by treatment with fluorine in the presence of UV radiations, operating at temperatures from −50° C. to 120° C.
    • 一种获得全氟聚醚的方法,包括:a)通过以下反应之一合成过氧化全氟聚醚:a1)在UV光的存在下,在低温下,在全氟化碳和(单)氢氟碳化合物之间选择的溶剂中,TFE光氧化,一般 式:CyF(2y + 2-x)Hx(II)其中y是2至4的整数; x是等于0或1的整数; 在用惰性气体稀释的氟的存在下; 或a2)TFE氧化,使用式RfOF(III)的自由基引发剂氟或次氟酸(Rf值为1至3个碳原子的Rf氟烷基),在-40℃至-100℃下以0和 12巴,在惰性溶剂中,在反应条件下; b)在150℃至250℃的温度下,任选地在选自式(III)的氟或次氟酸盐之间的分子量的调节剂存在下,热处理a)中得到的产物。 c)在100℃至250℃的温度下,在步骤b)中获得的聚合物的元素氟处理,或在UV辐射存在下通过氟处理,在-50℃至120℃的温度下操作 C。
    • 4. 发明授权
    • Process for preparing peroxidic perfluoropolyethers
    • 制备过氧化全氟聚醚的方法
    • US07705113B2
    • 2010-04-27
    • US11366598
    • 2006-03-03
    • Giuseppe MarchionniPier Antonio GuardaElvira Pagano
    • Giuseppe MarchionniPier Antonio GuardaElvira Pagano
    • C08G73/00C08G73/24C07C409/00
    • C08G65/007
    • A process for preparing peroxidic perfluoropolyethers having a perioxidic content (PO) lower than or equal to 1.2 of formula A-CF2O(CF2CF2O)m(CF2O)n—(CF2CF2OO)ml(CF2OO)n1CF2—B  (I) Wherein A, B equal to or different from each other are —C1, —F, —F2CC1, —COF, —OCOF, —CF3, m, m1, n, n1 are integers such that the (m+m1)/(n+n1) ratio is between 0.6 and 1.3 and the m/n ration is between 0.5 and 1.2; the number average molecular weight is in the range 35,000-45,000, by tetrafluoroethylene (TFE) photooxidation in the presence of UV light, at a temperature from −80° C. to −40° C., in the presence of a mixture of solvents formed of HFC-227 (hepta-fluoropropane) and a solvent selected between HFC-125 (pentafluoroethane) and FC-218 (perfluoropropane).
    • 一种制备具有低于或等于式A-CF 2 O(CF 2 CF 2 O)m(CF 2 O)n - (CF 2 CF 2 O)m(CF 2 O)n 1 CF 2 -B(I)的1.2的过氧化全氟聚醚的过氧化全氟聚醚的方法,其中A,B 相同或不同的是-C1,-F,-F2CC1,-COF,-OCOF,-CF3,m,m1,n,n1是整数,使得(m + m1)/(n + n1) 在0.6和1.3之间,m / n比在0.5和1.2之间; 在UV光的存在下,在-80℃至-40℃的温度下,在溶剂混合物存在下,数均分子量在35,000-45,000范围内,通过四氟乙烯(TFE)光氧化 由HFC-227(七氟丙烷)和选自HFC-125(五氟乙烷)和FC-218(全氟丙烷)之间的溶剂形成。
    • 5. 发明授权
    • Process for preparing perfluoropolyethers
    • 制备全氟聚醚的方法
    • US07214833B2
    • 2007-05-08
    • US10953764
    • 2004-09-30
    • Giuseppe MarchionniElvira PaganoPier Antonio Guarda
    • Giuseppe MarchionniElvira PaganoPier Antonio Guarda
    • C07C41/05
    • C08G65/3236C08G65/007
    • A process to obtain perfluoropolyethers comprising: a) synthesis of peroxidic perfluoropolyethers by one of the following reactions: al) TFE photooxidation, in solvents selected between perfluorocarbons and (mono)hydrofluorocarbons, of general formula: CyF(2y+2−X)Hx   (II)  wherein y is an integer from 2 to 4; x is an integer equal to 0 or 1; in the present of fluorine diluted with an inert gas; or a2) TFE oxidation using as radical initiator fluorine or hypofluorites of formula RfOF  (III)  (Rf perfluoroalkyl radical from 1 to 3 carbon atoms), operating from −40° C. to −100° C. at a pressure comprised between 0 and 12 bar; b) thermal treatment of the product obtained in a) at a temperature from 1500° C. to 250° C.; c) treatment with elemental fluorine of the polymer obtained in step b) at temperatures from 100° C. to 250° C., or by treatment with fluorine in the presence of UV radiations, operating at temperatures from −50° C. to 120° C.
    • 一种获得全氟聚醚的方法,包括:a)通过以下反应之一合成过氧化全氟聚醚:a1)在全氟化碳和(单)氢氟烃之间选择的溶剂中的TFE光氧化,通式为: (II)?(II)???????????????????????????????????????????? in-line-formula description =“In-line formula”end =“tail”?>其中y是从2到4的整数; x是等于0或1的整数; 在用惰性气体稀释的氟的存在下; 或a2)使用式(β)的自由基引发剂氟或次氟酸作为自由基引发剂TFE氧化使用式(Ⅳ)的式(III) (in-line-formula description =“In-line Formulas”end =“tail”?>(R 1至3个碳原子的全氟烷基),从-40℃至 - 100℃,压力为0至12巴; b)在a)中在1500℃至250℃的温度下热处理产物; c)在100℃至250℃的温度下,在步骤b)中获得的聚合物的元素氟处理,或在UV辐射存在下通过氟处理,在-50℃至120℃的温度下操作 C。