Manufacture of aryl esters
    4.
    发明授权
    Manufacture of aryl esters 失效
    芳基酯的制造

    公开(公告)号:US4456555A

    公开(公告)日:1984-06-26

    申请号:US416810

    申请日:1982-09-13

    IPC分类号: C07C67/055 C11C3/02 C09F5/08

    CPC分类号: C07C67/055

    摘要: A process is described for the manufacture of aryl esters such as phenyl esters by liquid phase reaction of an aromatic compound such as benzene with molecular oxygen in the presence of a perfluorocarboxylic acid and carboxylic acid preferably having 5 or more carbon atoms over a catalyst composed essentially of a compound of palladium, an antimony compound and optionally a compound of at least one member selected from the group consisting of chromium, cobalt, nickel, manganese, iron and tin wherein the aromatic compound is added continuously to the reaction and water formed in the reaction is rapidly and continuously removed from the reaction mixture.

    摘要翻译: 描述了一种通过在全氟羧酸和优选具有5个或更多个碳原子的羧酸存在下,芳族化合物如分子氧与分子氧的液相反应来制备芳基酯如苯基酯的方法, 的钯,锑化合物的化合物和任选的选自铬,钴,镍,锰,铁和锡中的至少一种的化合物,其中芳族化合物连续加入到反应中,在 从反应混合物中快速且连续地除去反应。

    Manufacture of phenyl esters
    5.
    发明授权
    Manufacture of phenyl esters 失效
    苯酯的制造

    公开(公告)号:US4655974A

    公开(公告)日:1987-04-07

    申请号:US717713

    申请日:1984-04-04

    IPC分类号: C07C67/00 C09F5/08 C09F7/10

    CPC分类号: C09F5/08 C07C67/055

    摘要: A process is described for the manufacture of aryl esters such as phenyl esters by liquid phase reaction of an aromatic compound such as benzene with molecular oxygen in the presence of a carboxylic acid preferably having 6 or more carbon atoms over a catalyst composed essentially of a compound of palladium and an antimony compound wherein the aromatic compound is added continuously to the reaction and water formed in the reaction is rapidly and continuously removed from the reaction zone.

    摘要翻译: 描述了通过在优选具有6个或更多个碳原子的羧酸存在下,在基本上由化合物组成的催化剂存在下,通过芳族化合物如苯与分子氧的液相反应来制备芳基酯如苯基酯的方法 的钯和锑化合物,其中芳族化合物连续加入到反应中,并且在反应中形成的水​​从反应区迅速且连续地除去。

    Thermoplastic composite induction welder
    7.
    发明授权
    Thermoplastic composite induction welder 失效
    热塑复合感应焊机

    公开(公告)号:US4978825A

    公开(公告)日:1990-12-18

    申请号:US433883

    申请日:1989-11-08

    IPC分类号: B29C65/00 B29C65/36 H05B6/02

    摘要: Induction heating of thermoplastic composite materials is accomplished to form a continuous bonded joint. A zone of optimum heating can be created by an induction heating coil mounted within and adjacent to the drum of a hollow circular roller of non-conductive material (i.e., transparent to the RF field) so that an induction heating field can be created and localized to create a zone of optimum heating at the joint area of the material to be bonded. Simultaneously pressure to that area can be applied by the circular roller. In a preferred form, the roller is semi-rigid to permit spreading of the contact surface with the joint area to avoid absolute contact line loading. A hand held induction heating unit with a finger operable power switch can be moved in a back and forth manner over the joint to apply heat when the switch is turned on and effect consolidation when the switch is turned off. Using the techniques of the invention, one can fuse two contacting members which are comprised of filamentary reinforced composite materials in which the matrix resin at the joint interface is a member of the thermoplastic family of polymers. The invention concentrates radio frequency (RF) energy at the joint interface which heats the surrounding layers and simultaneously provides for the application of a controlled force normal to the mid-plane of the joint to retain compaction of the laminates which would normally be relieved in a hot unrestrained condition.

    摘要翻译: 实现热塑性复合材料的感应加热以形成连续的接合接头。 可以通过安装在不导电材料的中空圆形滚筒的滚筒内并与其相邻的感应加热线圈(即,对RF场透明)来产生最佳加热区域,从而可以产生和定位感应加热场 以在待结合的材料的接合区域处产生最佳加热区域。 同时可以通过圆形辊施加对该区域的压力。 在优选的形式中,辊是半刚性的,以允许接触面与接合区域的铺展,以避免绝对的接触线负载。 具有可手指操作的电源开关的手持式感应加热单元可以在接头上前后移动,以在开关打开时施加热量,并在开关断开时进行整合。 使用本发明的技术,可以熔化由丝状增强复合材料组成的两个接触构件,其中接合界面处的基体树脂是热塑性聚合物族的成员。 本发明将射频(RF)能量集中在加热周围层的接合界面处,并且同时提供垂直于接头的中间平面的受控力的施加,以保持层压体的压实,这通常将被释放在 热无条件的条件。

    Benzylic oxidation process
    8.
    发明授权
    Benzylic oxidation process 失效
    苄氧化过程

    公开(公告)号:US4243612A

    公开(公告)日:1981-01-06

    申请号:US66196

    申请日:1979-08-13

    IPC分类号: B01J23/28 C07C45/36

    CPC分类号: B01J23/28 C07C45/36

    摘要: A vapor phase process for the direct oxidation of a methyl benzene to the corresponding aldehyde derivative; e.g., conversion of toluene to benzaldehyde, wherein said oxidation is effected in the presence of a catalyst system consisting essentially of uranium and molybdenum oxides in combination with an oxide of lead, tin, zirconium, cadmium, antimony or nickel.

    摘要翻译: 用于将甲基苯直接氧化成相应的醛衍生物的气相方法; 例如将甲苯转化成苯甲醛,其中所述氧化在催化剂体系的存在下进行,所述催化剂体系主要由铀和钼氧化物与铅,锡,锆,镉,锑或镍的氧化物组合。