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14 条记录 (耗时 0.028 秒)

    Process for the preparation of para,para'-polyphenyldicarboxylic acid
    1.
    发明授权
    Process for the preparation of para,para'-polyphenyldicarboxylic acid 失效
    对位聚对苯二甲酸的制备方法

    公开(公告)号：US4996353A

    公开(公告)日：1991-02-26

    申请号：US352575

    申请日：1989-05-16

    申请人： Guo-shuh J. Lee ,  Kenneth A. Burdett ,  Joseph J. Maj

    发明人： Guo-shuh J. Lee ,  Kenneth A. Burdett ,  Joseph J. Maj

    IPC分类号： C07C51/265

    CPC分类号： C07C51/265

    摘要： A process for the preparation of polyphenyl dicarboxylic acids is disclosed. The process comprises contacting para,para'-diisoalkyl or dialkyl-polyphenyl or an oxidation intermediate thereof with oxygen under reaction conditions sufficient to form para,para'-polyphenyldicarboxylic acid. The process is optionally carried out in the presence of cobalt, manganese, and bromine compounds.

    摘要翻译： 公开了一种制备聚苯二羧酸的方法。 该方法包括在足以形成对位，对聚 - 多苯基二羧酸的反应条件下，使对位，对 - 二异烷基或二烷基 - 聚苯基或其氧化中间体与氧接触。 该方法任选在钴，锰和溴化合物的存在下进行。

    Process for the preparation of dihydroperoxyalkyl polyphenyls and dihydroxy polyphenyls
    3.
    发明授权
    Process for the preparation of dihydroperoxyalkyl polyphenyls and dihydroxy polyphenyls 失效
    制备二氢过氧烷基聚苯基和二羟基聚苯基的方法

    公开(公告)号：US5338887A

    公开(公告)日：1994-08-16

    申请号：US858465

    申请日：1991-11-06

    申请人： Guo-shuh J. Lee ,  Kenneth A. Burdett

    发明人： Guo-shuh J. Lee ,  Kenneth A. Burdett

    IPC分类号： C07C39/15 ,  C07C409/08 ,  C08G63/60

    CPC分类号： C07C409/08 ,  C07C39/15 ,  C08G63/605 ,  Y02P20/582

    摘要： A process for the preparation of dihydroxy polyphenyl compounds is disclosed which comprises the simultaneous steps of (a) contacting the corresponding diisoalkyl polyphenyl compound or an oxidation intermediate thereof with oxygen under reaction conditions sufficient to form a corresponding dihydroperoxyalkyl polyphenyl compound and (b) contacting the dihydroperoxyalkyl polyphenyl compound with an acid under reaction conditions sufficient to form the corresponding dihydroxy polyphenyl compound. In addition, the intermediate dihydroperoxyalkyl polyphenyl compound is a novel compound.

    摘要翻译： 公开了制备二羟基多苯基化合物的方法，其包括（a）在足以形成相应的二氢过氧烷基聚苯基化合物的反应条件下使相应的二异烷基聚苯基化合物或其氧化中间体与氧接触的步骤，和（b）使 二氢过氧烷基聚苯基化合物与酸反应，该反应条件足以形成相应的二羟基聚苯基化合物。 此外，中间体二氢过氧烷基聚苯基化合物是新型化合物。

    Alkylation of polycyclic aromatic compounds to alkylates enriched in the linear- and near linear-substituted isomers
    4.
    发明授权
    Alkylation of polycyclic aromatic compounds to alkylates enriched in the linear- and near linear-substituted isomers 失效
    将多环芳族化合物烷基化成富含线性和近似直链取代的异构体的烷基化物

    公开(公告)号：US5015797A

    公开(公告)日：1991-05-14

    申请号：US458036

    申请日：1989-12-28

    申请人： Guo-shuh J. Lee ,  Juan M. Garces ,  Joseph J. Maj

    发明人： Guo-shuh J. Lee ,  Juan M. Garces ,  Joseph J. Maj

    IPC分类号： B01J29/18 ,  C07C2/66 ,  C07C2/86 ,  C07C37/14 ,  C07C39/17 ,  C07C41/30

    CPC分类号： C07C41/30 ,  B01J29/18 ,  C07C2/66 ,  C07C2/864 ,  C07C37/14 ,  C07C39/17 ,  C07C2101/14 ,  C07C2529/18

    摘要： Polycyclic aromatic compounds, such as biphenyl, are alkylated with an alkylating agent, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted polycyclic aromatic compounds enriched in the linear- and near linear-alkylated isomers, such as p,p'- and p,m'-di(isopropyl)biphenyl. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. Mixtures of the p,p'- and p,m'-disubstituted isomers of polycyclic aromatic compounds are useful as monomers in the preparation of improved thermotropic, liquid crystal polymers.

    摘要翻译： 在酸性丝光沸石催化剂存在下，在足以产生富含线性和近似直链烷基化的取代多环芳香族化合物的混合物的条件下，将多环芳族化合物如联苯在烷基化剂如丙烯中烷基化 异构体，如p，p'-和p，m'-二（异丙基）联苯。 新型酸性丝光沸石催化剂的特征在于其二氧化硅/氧化铝摩尔比，孔隙率和对称指数。 多环芳族化合物的p，p'-和p，m'-二取代异构体的混合物可用作制备改进的热致液晶聚合物的单体。

    Alkylation of aromatic compounds to alkylates enriched in the linear-substituted isomers
    5.
    发明授权
    Alkylation of aromatic compounds to alkylates enriched in the linear-substituted isomers 失效
    将芳族化合物烷基化成富含直链取代的异构体的烷基化物

    公开(公告)号：US5004841A

    公开(公告)日：1991-04-02

    申请号：US323530

    申请日：1989-03-14

    申请人： Guo-shuh J. Lee ,  Juan M. Garces ,  Joseph J. Maj ,  Stephen C. Rocke

    发明人： Guo-shuh J. Lee ,  Juan M. Garces ,  Joseph J. Maj ,  Stephen C. Rocke

    IPC分类号： B01J29/18 ,  C07C2/66 ,  C07C2/86 ,  C07C37/14 ,  C07C39/17 ,  C07C41/30

    CPC分类号： C07C41/30 ,  B01J29/18 ,  C07C2/66 ,  C07C2/864 ,  C07C37/14 ,  C07C2101/14 ,  C07C2529/18

    摘要： Aromatic compounds, such as benzene or biphenyl, are alkylated with an alkylating agent having from one to eight carbons atoms, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted aromatic compounds enriched in the linear alkylated isomers, such as p-diisopropylbenzene or p,p'-di(isopropyl)biphenyl, respectively. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. The p,p'-disubstituted isomers of aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.

    摘要翻译： 在酸性丝光沸石催化剂存在下，芳族化合物如苯或联苯在具有1至8个碳原子的烷基化剂如丙烯的条件下进行烷基化，所述条件足以产生富集的芳族化合物的混合物 线性烷基化异构体，如对二异丙苯或对，对 - 二（异丙基）联苯。 新型酸性丝光沸石催化剂的特征在于其二氧化硅/氧化铝摩尔比，孔隙率和对称指数。 芳族化合物的p，p'-二取代异构体可用作制备热致液晶聚合物的单体。

    Separation of ethyltoluene isomers
    10.
    发明授权
    Separation of ethyltoluene isomers 失效
    乙基甲苯异构体的分离

    公开(公告)号：US4996388A

    公开(公告)日：1991-02-26

    申请号：US558355

    申请日：1990-07-26

    申请人： Michael M. Olken ,  Guo-shuh J. Lee ,  Juan M. Garces

    发明人： Michael M. Olken ,  Guo-shuh J. Lee ,  Juan M. Garces

    IPC分类号： C07C7/13

    CPC分类号： C07C7/13

    摘要： A process of separating the ortho, meta and para isomers of ethyltoluene. One aspect employs a ferrierite absorbent which separates the para isomer from a mixture of the same and at least one of the meta and ortho isomers. A second aspect employs a silicalite absorbent which separates the ortho isomer from a mixture of the same and the meta isomer. A third aspect combines the ferrierite and silicalite absorbents in sequence to separate a mixture of the ortho, meta and para isomers into the essentially pure compounds.

    摘要翻译： 分离乙基甲苯的邻位，间位和对位异构体的方法。 一方面使用镁碱沸石吸收剂，其将对位异构体与其相同的元素和邻位异构体中的至少一种的混合物分离。 第二方面采用硅质吸收剂，其将邻位异构体与其相同的混合物和间位异构体分离。 第三方面依次将镁碱沸石和硅沸石吸收剂组合，将邻位异构体，间位异构体和对位异构体的混合物分离成基本上纯的化合物。