.beta.-fluoroacyl-.beta.-halovinyl alkyl ethers
    1.
    发明授权
    .beta.-fluoroacyl-.beta.-halovinyl alkyl ethers 失效
    β-氟代酰基-β-乙烯基烷基醚

    公开(公告)号:US4876393A

    公开(公告)日:1989-10-24

    申请号:US190781

    申请日:1988-05-05

    摘要: Novel .beta.-fluoroacyl-.beta.-halogenovinyl alkyl ethers of the formula ##STR1## in which R.sup.1 is a fluorinated alkyl group having 1 to 9 carbon atoms,Hal is a halogen atom, andR.sup.2 is an alkyl group having 1 to 7 carbon atoms,useful as insecticide intermediates, are produced by reacting a .beta.-fluoroacylvinyl ether of the formulaR.sup.1 --CO--CH.dbd.CH--OR.sup.2 (II)with a halogenating agent at a temperature of -70.degree. C. to +80.degree. C., to produce a halogenation product of the formula ##STR2## and dehydrohalogenating (III) at a temperature of -20.degree. C. to +100.degree. C.

    摘要翻译: 式(Ⅰ)的新的β-氟酰基-β-卤代乙烯基烷基醚,其中R 1是具有1至9个碳原子的氟化烷基,Hal是卤素原子,R 2是具有1至7个 可用作杀虫剂中间体的碳原子通过使式R 1 -CO-CH = CH-OR 2(II)的β-氟酰基乙烯基醚与卤化剂在-70℃至+ 80℃的温度下反应来制备 在-20℃至+ 100℃的温度下制备式(III)和脱卤化氢(III)的卤化产物。

    PROCESS FOR THE PREPARATION OF POLYCARBONATES AND DIARYL CARBONATE
    4.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYCARBONATES AND DIARYL CARBONATE 有权
    制备聚碳酸酯和二氧化碳的方法

    公开(公告)号:US20090240021A1

    公开(公告)日:2009-09-24

    申请号:US12370182

    申请日:2009-02-12

    IPC分类号: C08G64/30 B01J19/18

    CPC分类号: C08G64/24 C07C68/02 C07C69/96

    摘要: The present invention relates to a process for the continuous preparation of polycarbonates or diaryl carbonates by the method of the phase boundary process, in which both the mixing of the organic and aqueous phase and the upstream oligomerization step or aryl chloroformate and/or diaryl carbonate preparation step are effected in a special pump.

    摘要翻译: 本发明涉及通过相界方法连续制备聚碳酸酯或二芳基碳酸酯的方法,其中有机相和水相的混合与上游低聚步骤或氯甲酸芳基酯和/或碳酸二芳基酯制备 步骤在特殊的泵中进行。

    Process for producing DMC catalysts
    7.
    发明授权
    Process for producing DMC catalysts 有权
    生产DMC催化剂的方法

    公开(公告)号:US06780813B1

    公开(公告)日:2004-08-24

    申请号:US10148555

    申请日:2002-05-30

    IPC分类号: B01J2726

    摘要: The invention relates to an improved method of producing double-metal cyanide (DMC) catalysts for the production of polyether polyols by polyaddition of alkylene oxides to starter compounds containing active hydrogen atoms, in which the DMC catalyst dispersion is produced using a mixing nozzle, preferably a jet disperser. The DMC catalysts produced in this way have an increased activity in polyether polyol production, reduced particle size and narrower particle size distribution.

    摘要翻译: 本发明涉及一种制备双金属氰化物(DMC)催化剂的改进方法,所述双金属氰化物(DMC)催化剂是通过将环氧烷烃加成到含活性氢原子的起始化合物中制备聚醚多元醇,其中使用混合喷嘴制备DMC催化剂分散体 喷气分散机 以这种方式生产的DMC催化剂在聚醚多元醇生产中具有增加的活性,减小的粒度和较窄的粒度分布。

    Process for preparing 4-aminodiphenylamine
    10.
    发明授权
    Process for preparing 4-aminodiphenylamine 失效
    制备4-氨基二苯胺的方法

    公开(公告)号:US06414192B1

    公开(公告)日:2002-07-02

    申请号:US10007014

    申请日:2001-11-06

    IPC分类号: C07C20900

    CPC分类号: C07C209/38 C07C211/55

    摘要: The invention provides a process for preparing 4-aminodiphenylamine, an important starting product for synthesizing antioxidants and stabilizers in the rubber and polymer industry, by hydrogenating nitrosobenzene with hydrogen in the presence of a proton acid as catalyst and in the presence of a hydrogenating catalyst, optionally in the presence of an inert organic solvent and thermally decomposing the 4-ADPA ammonium salt produced in this way, wherein 4-ADPA is obtained. 4-aminodiphenylamine is produced in good yields and high purity by the process according to the present invention. Furthermore, no effluent is produced, which makes the process particularly economic and ecological.

    摘要翻译: 本发明提供一种制备4-氨基二苯胺的方法,该方法是在质子酸作为催化剂存在下,在氢化催化剂存在下,通过在氢气存在下,用氢气将亚硝基苯氢化,在橡胶和聚合物工业中合成抗氧化剂和稳定剂的重要起始产物, 任选地在惰性有机溶剂的存在下,并以这种方式产生的4-ADPA铵盐热分解,得到4-ADPA。4-氨基二苯胺通过本发明的方法以良好的产率和高纯度生产。 此外,没有产生流出物,这使得该过程特别经济和生态。