Oxidation of thiols, disulfides and thiolsulfonates
    1.
    发明授权
    Oxidation of thiols, disulfides and thiolsulfonates 失效
    硫醇,二硫化物和硫醇磺酸盐的氧化

    公开(公告)号:US4956494A

    公开(公告)日:1990-09-11

    申请号:US366350

    申请日:1989-06-15

    IPC分类号: C07C51/58 C07C309/04

    CPC分类号: C07C309/00

    摘要: Alkanesulfonic acids and alkanesulfonyl chlorides, free of undesirable side products arising from side-chain chlorination, are prepared by oxidation with hydrogen peroxide of the corresponding alkanethiol, dialkyldisulfide or alkyl alkanethiolsulfonate mixed with aqueous hydrochloric acid.

    摘要翻译: 通过用与盐酸水溶液混合的相应的链烷硫醇,二烷基二硫化物或烷基链烷硫醇磺酸的过氧化氢氧化制备不含侧链氯化产生的不期望的副产物的烷烃磺酸和烷烃磺酰氯。

    Poly(fluoroacetylene) containing polymers
    2.
    发明授权
    Poly(fluoroacetylene) containing polymers 失效
    聚(氟乙炔)聚合物

    公开(公告)号:US4904739A

    公开(公告)日:1990-02-27

    申请号:US202655

    申请日:1988-05-27

    IPC分类号: C08F8/26

    CPC分类号: C08F8/26

    摘要: Compositions of poly(fluoroacetylene) useful for providing electrically conductive properties to plastics by a method of dehydrofluorination of saturated fluoroethylene polymers.

    摘要翻译: 用于通过饱和氟代乙烯聚合物的脱氟化氢方法为塑料提供导电性能的聚(氟乙炔)的组合物。

    Synchronized sound producing amusement device
    3.
    发明授权
    Synchronized sound producing amusement device 失效
    同步声音产生娱乐设备

    公开(公告)号:US4904222A

    公开(公告)日:1990-02-27

    申请号:US186519

    申请日:1988-04-27

    IPC分类号: A63H5/00 A63H33/00

    摘要: An amusement device is disclosed which contains a signal generator attached to a flexible member. When the flexible member is repeatedly waved, an oscillatory electrical signal is produced by the signal generator and supplied to a sound generator which produces sound which synchronously varies with the repeated flexure of the member caused by the waving action. The sound generator produces a first tone with respect to the oscillatory electrical signal and a second tone when the frequency of the oscillatory electrical signal exceeds a predetermined value.

    摘要翻译: 公开了一种娱乐装置,其包括附接到柔性构件的信号发生器。 当柔性构件被重复地挥动时,由信号发生器产生振荡电信号并提供给产生声音的声音发生器,该声音产生的声音随着由挥动动作引起的构件的反复挠曲而同步变化。 当振荡电信号的频率超过预定值时,声音发生器产生相对于振荡电信号的第一音调和第二音调。

    Process for the preparation of 2,2'-dithiobis (benzothiazole)
    8.
    发明授权
    Process for the preparation of 2,2'-dithiobis (benzothiazole) 失效
    制备2,2'-二硫代双(苯并噻唑)

    公开(公告)号:US4859778A

    公开(公告)日:1989-08-22

    申请号:US169258

    申请日:1988-03-17

    IPC分类号: C07D277/78

    CPC分类号: C07D277/78

    摘要: An improved process for the manufacture of 2,2'-dithiobis(benzothiazole). More particularly, the invention relates to an improved process for preparing 2,2'-dithiobis(benzothiazole) using various nonionic and cationic surfactants to reduce or eliminate the formation of large particles in the product.

    摘要翻译: 一种制备2,2'-二硫代双(苯并噻唑)的改进方法。 更具体地,本发明涉及使用各种非离子和阳离子表面活性剂制备2,2'-二硫代双(苯并噻唑)的一种改进方法,以减少或消除产物中大颗粒的形成。

    Polymer bound hindered amine light stabilizers
    9.
    发明授权
    Polymer bound hindered amine light stabilizers 失效
    聚合物结合的受阻胺光稳定剂

    公开(公告)号:US4857595A

    公开(公告)日:1989-08-15

    申请号:US84603

    申请日:1987-08-12

    IPC分类号: C08F8/30

    CPC分类号: C08F8/30

    摘要: Polymer bound hindered amine light stabilizers are prepared by reacting hindered amine light stabilizers containing reactive hydrazide functionalities with anhydride containing polymers or copolymers. The reactions may be carried out in an inert solvent or in a melt blending step. The polymer bound hindered amine light stabilizers are useful alone or may also be used to stabilize other polymers, copolymers or polymer blends against the deleterious effects of heat and/or light.