Method for preparing polyether polyols
    41.
    发明授权
    Method for preparing polyether polyols 失效
    制备聚醚多元醇的方法

    公开(公告)号:US06350920B1

    公开(公告)日:2002-02-26

    申请号:US09485507

    申请日:2000-03-20

    IPC分类号: C07C4311

    摘要: Polyether polyols can be prepared by reacting polyols with epoxides in the presence of basic catalysts, by treating the polyether polyols containing the basic catalysts with OH-functional solid compounds of metals of groups III to VIII of the periodic system of the elements (Mendeleyev), the compounds being insoluble in the polyether polyols and having BET surface areas of from 10 to 1000 m2/g, isolating the solid inorganic compounds laden with the basic catalysts from the polyether polyol and using them in the reaction of polyols with epoxides, or bringing the isolated inorganic compounds laden with the basic catalysts into contact with the polyols that are to be used in the reaction with epoxides, separating those polyols from the inorganic compounds and delivering them to the reaction with epoxides.

    摘要翻译: 聚醚多元醇可以通过在碱性催化剂的存在下使多元醇与环氧化物反应来制备,通过用含有元素(Mendeleyev)的周期体系的III-VIII族金属的OH-官能固体化合物处理含有碱性催化剂的聚醚多元醇, 所述化合物不溶于所述聚醚多元醇并具有10至1000m 2 / g的BET表面积,从所述聚醚多元醇中分离含有碱性催化剂的固体无机化合物,并将其用于多元醇与环氧化物的反应,或将 分离的无机化合物与碱性催化剂接触,与用于与环氧化物的反应中使用的多元醇接触,将这些多元醇与无机化合物分离并将其输送到与环氧化物反应。

    .beta.-fluoroacyl-.beta.-halovinyl alkyl ethers
    47.
    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。

    3-halogenoalkyl-1-aryl-pyrazole pesticides, compositions and use
    48.
    发明授权
    3-halogenoalkyl-1-aryl-pyrazole pesticides, compositions and use 失效
    3-卤代烷基-1-芳基 - 吡唑农药,组合物和用途

    公开(公告)号:US4868198A

    公开(公告)日:1989-09-19

    申请号:US177561

    申请日:1988-04-04

    摘要: Arthropodically active 3-halogenoalkyl-1-arylpyrzoles of the formula ##STR1## in which R.sup.1 represents halogenoalkyl,R.sup.2 represents cyano, or represents hydroxycarbonyl, or represents carbamoyl or thiocarbamoyl, or represents alkoxycarbonyl, N-alkylcarbamoyl or N,N-dialkylcarbamoyl, or represents alkenyloxycarbonyl, N-alkenylcarbamoyl or N,N-dialkenylcarbamoyl, or represents alkinyloxycarbonyl, N-alkinylcarbamoyl, N,N-dialkinylcarbamoyl or N-arylcarbamoyl, or represents alkylcarbonyl, halogenoalkycarbonyl or cycloalkylcarbonyl,R.sup.3 represents hydrogen, alkyl, halogenoalkyl or cycloalkyl andAr represents substituted phenyl, with the exception of the 2,4-dinitrophenyl radical.

    摘要翻译: 其中R 1表示卤代烷基,R 2表示氰基或代表羟基羰基,或表示氨基甲酰基或硫代氨基甲酰基,或表示烷氧基羰基,N-烷基氨基甲酰基或N,N-二甲基氨基甲酰基的人体活性3-卤代烷基-1-芳基吡唑, 二烷基氨基甲酰基,或代表链烯氧基羰基,N-烯基氨基甲酰基或N,N-二链烯基氨基甲酰基,或表示烷氧基羰基,N-烷基氨基甲酰基,N,N-二烷基氨基甲酰基或N-芳基氨基甲酰基,或表示烷基羰基,卤代羰基羰基或环烷基羰基,R 3表示氢,烷基,卤代烷基或 环烷基,Ar表示取代的苯基,2,4-二硝基苯基除外。

    Process for preparing diaryl carbonates and polycarbonates
    49.
    发明授权
    Process for preparing diaryl carbonates and polycarbonates 有权
    制备碳酸二芳基酯和聚碳酸酯的方法

    公开(公告)号:US09175135B2

    公开(公告)日:2015-11-03

    申请号:US13071944

    申请日:2011-03-25

    摘要: The present invention relates to a process for the continuous preparation of diaryl carbonates from phosgene and at least one monohydroxy compound (monophenol) in the presence of catalysts, and also the use thereof for preparing polycarbonates. The hydrogen chloride formed in the reaction is converted by thermal oxidation into chlorine, with the chlorine being recirculated to the preparation of phosgene. In particular, the process comprises utilization of the hydrogen chloride formed for the process for preparing diphenyl carbonate (DPC process).

    摘要翻译: 本发明涉及在催化剂存在下从光气和至少一种单羟基化合物(单酚)连续制备碳酸二芳酯的方法,以及其用于制备聚碳酸酯的方法。 反应中形成的氯化氢通过热氧化转化成氯,氯被再循环到光气的制备中。 特别地,该方法包括利用形成的用于制备碳酸二苯酯的方法中的氯化氢(DPC工艺)。