Process for preparing hydrofluoroethers
    13.
    发明授权
    Process for preparing hydrofluoroethers 有权
    制备氢氟醚的方法

    公开(公告)号:US07141704B2

    公开(公告)日:2006-11-28

    申请号:US10809868

    申请日:2004-03-26

    Abstract: Process for obtaining hydrofluoroethers of formula (I): A-(Rf)n0—CF(Rf1)—O—Rh  (I) wherein a mono- or bifunctional carbonyl compound of formula (IV): B—Rf—C(O)Rf1  (IV) is reacted with at least one equivalent of a fluoroformate of formula (III) R—OC(O)F  (III) in the presence of an ion fluoride compound (catalyst) and of a dipolar aprotic organic compound, liquid and inert under the reaction conditions.

    Abstract translation: 获得式(I)的氢氟醚的方法:<?in-line-formula description =“In-line Formulas”end =“lead”?> A-(R)f (I)<?in-line-formula description =“In-line Formulas”end =“tail”? >其中式(Ⅳ)的单官能或双官能羰基化合物:?在线式描述=“在线式”末端=“铅”→BR f C(O )将式(III)的式(III)的氟代甲酸酯与至少一当量的式(III)的氟甲酸酯反应, <?in-line-formula description =“In-line Formulas”end =“lead”?> R-OC(O)F(III)<?in-line-formula description =“In-line Formulas”end = 在催化剂和离子氟化物(催化剂)存在下,在反应条件下为液态惰性的偶极非质子有机化合物。

    Perfluoroelastomers
    18.
    发明授权
    Perfluoroelastomers 有权
    全氟弹性体

    公开(公告)号:US07488787B2

    公开(公告)日:2009-02-10

    申请号:US11191035

    申请日:2005-07-28

    CPC classification number: C08F14/18 C08F2/02

    Abstract: Perfluoroelastomers curable by peroxidic way having glass transition temperature lower than −10° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the IR spectroscopy in Fourier transform described in the present application.

    Abstract translation: 具有玻璃化转变温度低于-10℃的通过过氧化物固化的全氟弹性体,并且聚合物中的-COF端基的量低于使用本申请描述的傅立叶变换中的红外光谱法的灵敏度极限。

    TFE-based thermoprocessable copolymers
    19.
    发明申请
    TFE-based thermoprocessable copolymers 失效
    基于TFE的热可加工共聚物

    公开(公告)号:US20060025635A1

    公开(公告)日:2006-02-02

    申请号:US11191031

    申请日:2005-07-28

    CPC classification number: C08F214/262

    Abstract: TFE-based thermoprocessable copolymers having the following composition, expressed in percentage by moles on the total of the monomers: A) from 0.01 to 15% of the monomer of formula: CF2═CFOCF2OCF3  (a); A1) tetrafluoroethylene from 99.99 to 85%; optionally B) one or more (per)fluorinated comonomers having at least one unsaturation of ethylene type, different from TFE; the sum of the molar percentages A)+B) being such as to give polymers showing at least one melting peak at the thermogravimetric analysis (DSC).

    Abstract translation: 具有以下组成的基于TFE的热可加工共聚物,以单体总量的百分比表示:A)0.01至15%的式的单体:<?在线公式描述=“在线式” (a);(c)结束=“铅”→(CF 3)2 CF 2 OCF 3(a); <?in-line-formula description =“In-line formula”end =“tail”?> A1)从99.99到85%的四氟乙烯; 任选地B)一种或多种具有不同于TFE的乙烯类型的至少一个不饱和键的(全)氟化共聚单体; 摩尔百分比A)+ B)的总和使得在热重分析(DSC)下显示出至少一个熔融峰的聚合物。

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