知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.029 秒)

    Hard vacuum seal-off valve
    2.
    发明授权
    Hard vacuum seal-off valve 失效
    硬真空密封阀

    公开(公告)号：US3597399A

    公开(公告)日：1971-08-03

    申请号：US3597399D

    申请日：1969-04-22

    申请人： HENKEL & CIE GMBH

    发明人： LIESKE EDGAR ,  WEINRICH ERWIN

    IPC分类号： C08G59/18 ,  C08G59/40 ,  C08K5/42 ,  C08G30/12

    CPC分类号： C08G59/4064 ,  C08G59/18 ,  C08K5/42 ,  C08L63/00

    摘要： HIGH VACUUM SEAL-OFF VALVE PROVIDING A METAL-TO-METAL SEAL, I.E., NO ELASTOMERS, IS DISCLOSED. A cylindrical sleeve member, preferably of a relatively soft metal, is slideably received in and supported by a hollow cylindrical inlet stem of an enclosed vessel with one end portion of the sleeve positioned to define an annular valve seat. The valve member constitutes a metallic ball preferably of a relatively hard metal and having a diameter only slightly greater than the internal diameter of the sleeve. A valve closure member is connected to the ball valve by a universal-type fitting so that a self-aligning of the ball occurs on forcible seating of the metallic ball by the the closure member. Additional features are disclosed.

    Hardenable epoxide resin compositions containing nitrophenolic hardening retardants and process for retarding the hardening of epoxide resin compositions
    3.
    发明授权
    Hardenable epoxide resin compositions containing nitrophenolic hardening retardants and process for retarding the hardening of epoxide resin compositions 失效
    含有硝基酚硬化阻燃剂的环氧化物树脂组合物和用于延缓环氧树脂组合物硬化的方法

    公开(公告)号：US3597411A

    公开(公告)日：1971-08-03

    申请号：US3597411D

    申请日：1969-04-22

    申请人： HENKEL & CIE GMBH

    发明人： WEINRICH ERWIN ,  BUDNOWSKI MANERED

    IPC分类号： C08K5/32 ,  C08G30/10

    CPC分类号： C08K5/32 ,  C08L63/10 ,  C08L63/00

    摘要： A PROCESS FOR RETARDING THE HARDENING OF AN EPOXIDE RESIN AT ELEVATED TEMPERATURES WHICH COMPRISES ADMIXING A RETARDING AMOUNT OF AN AROMATIC ACIDIC PHENOLIC COMPOUND HAVING AT LEAST ONE ACIDIC PHENOLIC HYDROXYL AND AT LEAST TWO NITRO GROUPS IN THE MOLECULE TO A HARDENABLE MIXTURE OF (1) A HARDENABLE EPOXIDE COMPOUND CONTAINING MORE THAN ONE EPOXIDE GROUP IN THE MOLECULE AND (2) AN ORGANIC POLYCARBOXYLIC ACID ANHYDRIDE EPOXIDE RESIN HARDENER, SAID HARDENABLE MIXTURE BEING MAINTAINED AT A TEMPERATURE SUFFICIENT TO CAUSE AN EPOXIDE RESIN HARDENING REACTION. THE COMPOSITIONS CONTAINING THE AROMATIC ACIDIC PHENOLIC COMPOUND DELAY THE HARDENING OF THE HARDENABLE EPOXIDE RESIN MIXTURE FOR VARYING TIMES DEPENDING ON THE AMOUNT OF RETARDING COMPOUND UTILIZED AS WELL AS THE HARDENABLE EPOXIDE RESIN AND THE TEMPERATURE.

    Process for retarding the hardening of epoxide resins using a barbituric retarder and retarding compositions
    5.
    发明授权
    Process for retarding the hardening of epoxide resins using a barbituric retarder and retarding compositions 失效
    使用阻燃剂和延缓组合物延缓环氧树脂硬化的方法

    公开(公告)号：US3597410A

    公开(公告)日：1971-08-03

    申请号：US3597410D

    申请日：1969-04-22

    申请人： HENKEL & CIE GMBH

    发明人： LIESKE EDGAR ,  WEINRICH ERWIN

    IPC分类号： C08G59/18 ,  C08K5/3462 ,  C08K5/36 ,  C08G30/10

    CPC分类号： C08K5/3462 ,  C08G59/18 ,  C08K5/36 ,  C08L63/00

    摘要： A PROCESS FOR RETARDING THE HARDENING OF AN EPOXIDE RESIN AT ELEVATED TEMPERATURES WHICH COMPRISES ADMIXING A RETARDING AMOUNT OF A BARBITURIC COMPOUND HAVING THE FORMULA

    1,3-DI-R2,2-Y=,5-R1-PERHYDROPYRIMIDINE-4,6-DIONE

    WHEREIN Y IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF O AND S, R2 REPRESENTS MEMBERS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL HAVING FROM 1 TO 8 CARBON ATOMS, PHENYL, AND HALOGEN AND NITRO SUBSTITUTED DERIVATIVES THEREOF, AND R1 REPRESENTS MEMBERS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, NITRO AND NITROSO, TO A HARDENABLE MIXTURE OF (1) A HARDENABLE EPOXIDE COMPOUND CONTAINING MORE THAN ONE EPOXIDE GROUP IN THE MOLECULE AND (2) AN ORGANIC POLYCARBOXYLIC ACID ANHYDRIDE EPOXIDE RESIN HARDENER, SAID HARDENABLE MIXTURE BEING MAINTAINED AT A TEMPERATURE SUFFICIENT TO CAUSE AN EPOXIDE RESIN HARDENING REACTION. THE COMPOSITIONS CONTAINING THE BARBITURIC COMPOUNDS DELAY THE HARDENING OF THE HARDENABLE EPOXIDE RESIN MIXTURE FOR VARYING TIMES DEPENDING ON THE AMOUNT OF RETARDING COMPOUND UTILIZED AS WELL AS THE HARDENABLE EPOXIDE RESIN AND THE TEMPERATURE.