Synthesis of trithiocarbonate raft agents and intermediates thereof
    5.
    发明授权
    Synthesis of trithiocarbonate raft agents and intermediates thereof 有权
    三硫代碳酸盐筏剂的合成及其中间体

    公开(公告)号:US07632966B2

    公开(公告)日:2009-12-15

    申请号:US11578268

    申请日:2005-05-11

    CPC分类号: C08F2/38 C07C329/00

    摘要: This invention provides an efficient method for synthesizing trithiocarbonate RAFT agents, RSC(S)SR′, that can be used in the living polymerization of methacrylates and other olefinic monomers. This invention also provides an efficient method of synthesizing bis(alkylsulfanylthiocarbonyl) disulfides that are useful as intermediates in the synthesis of trithiocarbonate RAFT agents.

    摘要翻译: 本发明提供了可用于甲基丙烯酸酯和其它烯烃单体的活性聚合中的三硫代碳酸酯RAFT试剂RSC(S)SR'的有效方法。 本发明还提供了合成双(烷基硫烷基硫代羰基)二硫化物的有效方法,其可用作合成三硫代碳酸酯RAFT试剂的中间体。

    Process for the manufacturing of selected halogenated hydrocarbons
containing fluorine and hydrogen and compositions provided therein
    8.
    发明授权
    Process for the manufacturing of selected halogenated hydrocarbons containing fluorine and hydrogen and compositions provided therein 失效
    用于制造选择的含氟和氢的卤代烃的方法及其中提供的组合物

    公开(公告)号:US5670679A

    公开(公告)日:1997-09-23

    申请号:US458784

    申请日:1995-06-02

    摘要: A process is disclosed for the manufacture of product compounds of the formula HC(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 C(R.sup.2).sub.2 H wherein each R.sup.1 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f C(O)R.sup.f and OC(O)R.sup.f where R is a hydrocarbyl group and R.sup.f is a C.sub.1 to C.sub.10 polyfluoroalkyl group, provided that at least one R.sup.1 is F, and wherein each R.sup.2 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f, OC(O)R.sup.f and difunctional linkages where an R.sup.2 group on each of two adjacent carbon atoms together form a link selected from the group consisting of --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH(CH.sub.3 --, --CH.sub.2 CH(CH.sub.3)CH.sub.2 --, --C(O)OC(O)--, and norborndiyl. The process involves reacting a metallacycle of the formula L.sub.m M(1,4-C(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 C(R.sup.2).sub.2 --) wherein R.sup.1 and R.sup.2 are as defined above, and wherein M is a metal selected from the group consisting of Group 8, Group 9 and Group 10 metals, each L is a ligand selected from the group consisting of Group 14, Group 15 and Group 16 ligands, and m is an integer from 1 to 4, in the liquid phase with hydrogen. Also disclosed are certain compositions comprising product compounds within the above product compound formula and certain metallacycle compounds within the above metallacycle formula.

    摘要翻译: 公开了制备式HC(R1)2C(R1)2C(R2)2C(R2)2H的产物化合物的方法,其中每个R 1独立地选自H,F,Cl,CN,R ,OR,CO 2 R,C(O)R,OC(O)R,R f,OR f,CO 2 R f C(O)R f和OC(O)R f,其中R是烃基,Rf是C1至C10多氟烷基, 至少一个R1是F,并且其中每个R 2独立地选自H,F,Cl,CN,R,OR,CO 2 R,C(O)R,OC(O)R,R f,OR f, CO 2 R f,C(O)R f,OC(O)R f和双官能键,其中两个相邻碳原子上的每一个上的R 2基团一起形成选自-CH 2 CH 2 CH 2 - , - CH 2 CH 2 CH 2 CH 2 - , - CH 2 CH 2 CH 所述方法包括使式LmM(1,4-C(R 1)2 C(R 1)2 C(R 2))的金属环反应, 2C(R2)2-)其中R1和R2如上定义,并且其中M是选自第8族,第9族和第10族金属的金属,每个L是配体 选自第14族,第15族和第16族配体,m为1至4的整数,在液相中为氢。 还公开了包含上述产物化合物式中的产物化合物和上述金属环状配方中的某些金属环化合物的某些组合物。

    Process for making fluoropolymers
    9.
    发明授权
    Process for making fluoropolymers 失效
    制备含氟聚合物的方法

    公开(公告)号:US5639837A

    公开(公告)日:1997-06-17

    申请号:US658676

    申请日:1996-06-04

    IPC分类号: C08F2/00 C08F14/18

    CPC分类号: C08F14/18

    摘要: Disclosed herein is a process in which fluorine containing olefins are polymerized using an initiation system which is a combination of a fluoroaliphatic sulfinate or sulfinic acid and chlorate, bromate or hypochlorite ions. The resulting polymer contains fewer deleterious end groups and is more stable and/or easier to process. The polymers produced are useful as thermoplastics and elastomers.

    摘要翻译: 本文公开的是使用作为氟代脂族亚磺酸盐或亚磺酸与氯酸盐,溴酸盐或次氯酸盐离子的组合的引发体系聚合含氟烯烃的方法。 所得聚合物含有较少有害的末端基团并且更稳定和/或更容易加工。 所生产的聚合物可用作热塑性塑料和弹性体。