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    • 75. 发明授权
    • Curable fluorine-containing polyether composition
    • 可固化含氟聚醚组合物
    • US08283396B2
    • 2012-10-09
    • US13262331
    • 2010-02-26
    • Satoru Saito
    • Satoru Saito
    • C08K5/1525C07C239/00
    • C08G65/007C08G61/10C08G2261/1424C08G2261/146C08G2261/312C08G2261/411C08G2650/48C08K3/22C08K5/50C08K5/55C08L71/00H01L23/293H01L2924/0002H01L2924/00
    • Disclosed is a curable fluorine-containing polyether composition comprising (A) 100 parts by weight of a fluorine-containing polyether compound of the formula: wherein R1 is a hydrogen atom, a C1-C3 alkyl group, or a phenyl group, X is a bromine or iodine atom, l and m are integers of 10 or more, and l+m is 30 to 200; (B) 1 to 20 parts by weight of a fluorine-containing aromatic boronic acid ester compound of the formula: wherein R2 is a C2-C10 divalent aliphatic hydrocarbon group, and Y is a C1-C20 fluoroalkyl group; (C) 0.0001 to 1 parts by weight of a zero-valent or divalent organopalladium compound; (D) 0.5 to 10 parts by weight of a basic inorganic or organic compound; and (E) 0 to 5 parts by weight of an organophosphorus compound. The curable fluorine-containing polyether composition can produce a cured product that has improved compression set characteristics.
    • 公开了一种固化性含氟聚醚组合物,其包含(A)100重量份下式的含氟聚醚化合物:其中R1是氢原子,C1-C3烷基或苯基,X是 溴或碘原子,l和m为10以上的整数,l + m为30〜200; (B)1〜20重量份下式的含氟芳族硼酸酯化合物:其中R2是C2-C10二价脂族烃基,Y是C1-C20氟代烷基; (C)0.0001〜1重量份的零价或二价有机钯化合物; (D)0.5〜10重量份碱性无机或有机化合物; 和(E)0〜5重量份的有机磷化合物。 可固化的含氟聚醚组合物可以生产具有改进的压缩永久变形特性的固化产物。
    • 79. 发明申请
    • Process for the purification of polyol PFPE derivatives
    • 多元醇PFPE衍生物的纯化方法
    • US20120055779A1
    • 2012-03-08
    • US13319679
    • 2010-05-06
    • Graziano Giuseppe VezzulliPiero GavezottiFabrizio MuttaClaudio Adolfo Pietro TONELLI
    • Graziano Giuseppe VezzulliPiero GavezottiFabrizio MuttaClaudio Adolfo Pietro TONELLI
    • B01D3/34
    • C08G65/007C08G65/30
    • A process for purifying a polyol (per)fluoropolyether derivative [polyol (P)] from a mixture of hydroxyl (per)fluoropolyether derivatives [mixture (M)]. Such polyol (P) comprising one or more hydroxyl (per)fluoropolyether derivatives [PFPE (OH)] comprising at least one (per)fluoropolyoxyalkylene chain (chain Rf) and at least one end-group having formula (t3)-CF2CH2OCH2CH(OH)CH2OCH2CH(OH)CH2OH. Such mixture (M) comprising the polyol (P) and at least one PFPE (OH) different from the polyol (P) and comprising at least one chain Rf and at least one end-group selected from end-groups having formula (t1)-CF2CH2OH and formula (t2)-CF2CH2OCH2CH(OH)CH2OH. The process comprises the steps of: 1) reacting the mixture (M) with a ketone, an aldehyde or a combination thereof to yield corresponding mixture of cyclic ketal/acetal (per)fluoropolyether derivatives [PFPEs (OH)p] [protected mixture (P)]; 2) carrying out a molecular distillation of the protected mixture (P) to isolate a protected product heavy residue [product (Pr)]; 3) hydrolyzing the product (Pr) to yield deprotected product [product (Pd]); and 4) carrying out a distillation under reduced pressure of the product (Pd) to obtain polyol (P).
    • 从羟基(全)氟聚醚衍生物[混合物(M)]的混合物中纯化多元醇(全)氟聚醚衍生物[多元醇(P)]的方法。 包含一种或多种包含至少一个(全)氟聚氧化烯链(链Rf))和至少一个具有式(t3)的末端基团的羟基(全)氟聚醚衍生物[PFPE(OH)]的多元醇(P)-CF 2 CH 2 OCH 2 CH )CH 2 OCH 2 CH(OH)CH 2 OH。 这种包含多元醇(P)和至少一种不同于多元醇(P)的PFPE(OH)的混合物(M)并且包含至少一个链Rf和至少一个选自具有式(t1)的端基的端基, -CF 2 CH 2 OH和式(t2)-CF 2 CH 2 OCH 2 CH(OH)CH 2 OH。 该方法包括以下步骤:1)使混合物(M)与酮,醛或其组合反应,以产生相应的环缩酮/缩醛(全)氟聚醚衍生物[PFPE(OH)p] [保护的混合物 P)]; 2)进行受保护的混合物(P)的分子蒸馏以分离受保护的产物重残余物[产物(Pr)]; 3)水解产物(Pr)以产生脱保护的产物[产物(Pd]); 和4)在减压下进行产物(Pd)的蒸馏以获得多元醇(P)。