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1.发明授权
公开(公告)号：EP0249723B1
公开(公告)日：1992-07-01
申请号：EP87106246.9
申请日：1987-04-29
IPC分类号： C01B25/023 , C08K3/32
CPC分类号： C01B25/006 , C01B25/023 , C08K3/02 , C08K9/02 , Y10S260/24 , Y10T428/2998
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2.发明公开
公开(公告)号：EP0249723A3
公开(公告)日：1988-11-30
申请号：EP87106246
申请日：1987-04-29
IPC分类号： C01B25/023 , C08K03/32
CPC分类号： C01B25/006 , C01B25/023 , C08K3/02 , C08K9/02 , Y10S260/24 , Y10T428/2998
摘要： A flame retardant comprising of spherical red phosphorus free of pulverized face which is directly produced in the form of fine powder by conversion of yellow phosphorus, without pulverizing process. The red phosphorus characterized by its surface state and shape entirely different from any prior pulverized red phosphorus has not only a high flame retarding ability, but also a superior combination of chemical and physical properties, particularly with regard to corrosion resistance, moisture resistance, mechanical strength and dielectric properties which make it highly valuable and useful as a flamme retardant for various nonflammable resinous compositions used in electric articles including electronic parts, machines, automobiles and buildings. The flame retardant is desirably coated with thermosetting rein and/or hydroxide of aluminum and/or zinc, thereby greatly improved in its stability.
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公开(公告)号：EP0296501B1
公开(公告)日：1992-11-11
申请号：EP88109684.6
申请日：1988-06-16
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4.发明公开Red phosphorus flame retardant and nonflammable resinous composition containing the same 失效Flammverzögereraus rotem Phosphor und ihn enthaltende nicht entflammbare Harzzusammensetzung。
公开(公告)号：EP0249723A2
公开(公告)日：1987-12-23
申请号：EP87106246.9
申请日：1987-04-29
IPC分类号： C01B25/023 , C08K3/32
CPC分类号： C01B25/006 , C01B25/023 , C08K3/02 , C08K9/02 , Y10S260/24 , Y10T428/2998
摘要： A flame retardant comprising of spherical red phosphorus free of pulverized face which is directly produced in the form of fine powder by conversion of yellow phosphorus, without pulverizing process. The red phosphorus characterized by its surface state and shape entirely different from any prior pulverized red phosphorus has not only a high flame retarding ability, but also a superior combination of chemical and physical properties, particularly with regard to corrosion resistance, moisture resistance, mechanical strength and dielectric properties which make it highly valuable and useful as a flamme retardant for various nonflammable resinous compositions used in electric articles including electronic parts, machines, automobiles and buildings. The flame retardant is desirably coated with thermosetting rein and/or hydroxide of aluminum and/or zinc, thereby greatly improved in its stability.
摘要翻译： 一种阻燃剂，其包含不含粉碎面的球形红磷，其通过黄磷转化而直接以微粉形式而不经粉碎处理。 特征在于其表面状态和形状完全不同于任何现有粉碎的红磷的红磷不仅具有高阻燃能力，而且具有优异的化学和物理性能组合，特别是在耐腐蚀性，耐湿性，机械强度方面 和介电性质，其使其作为用于包括电子部件，机器，汽车和建筑物的电动制品中的各种不可燃树脂组合物的火焰阻燃剂是非常有价值和有用的。 阻燃剂理想地涂覆有铝和/或锌的热固化和/或氢氧化物，从而大大提高其稳定性。
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公开(公告)号：EP0459751B1
公开(公告)日：1995-04-12
申请号：EP91304802.1
申请日：1991-05-28
发明人： Takikawa, Yoshihiro , Oda, Masaoki , Takeuti, Takashi , Shibata, Katsutoshi , Kanayama, Atsushi
IPC分类号： C01B25/165
CPC分类号： C01B25/165 , C01B25/163
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6.发明公开A process for the production of alkali metal hypophosphites 失效Verfahren zur Herstellung von Alkalimetall-hypophosphinen。
公开(公告)号：EP0459751A1
公开(公告)日：1991-12-04
申请号：EP91304802.1
申请日：1991-05-28
发明人： Takikawa, Yoshihiro , Oda, Masaoki , Takeuti, Takashi , Shibata, Katsutoshi , Kanayama, Atsushi
IPC分类号： C01B25/165
CPC分类号： C01B25/165 , C01B25/163
摘要： High purity alkali metal hypophosphites are produced in high efficiency by a simple step of using no separating agents other than white phosphorus, alkali metal hydroxides and water as reaction raw materials, resulting in no need of a complicated procedure for removing impurities. The process comprises reacting white phosphorus and an alkali metal hydroxide in an aqueous medium to prepare a crude solution of an alkali metal hypophosphite containing the phosphite, feeding the crude solution to a desalting compartment of an electrodialytic cell in which cation exchange membranes and univalent anion permeable membranes are alternately arranged between a cathode and an anode to form at least one pair of a desalting compartment and a concentrating compartment, so as to separate the hypophosphite from the crude solution, during which a dilute solution of an alkali hypophosphite is fed to the concentrating compartment, subjecting them to electrodialysis, withdrawing the purified solution of the alkali metal hypophosphite from the concentrating compartment and concentrating and crystallizing the thus purified solution.
摘要翻译： 通过简单的步骤，不使用白磷，碱金属氢氧化物和水以外的分离剂作为反应原料，高效率地生产高纯度碱金属次磷酸盐，不需要复杂的去除杂质的方法。 该方法包括在水性介质中使白磷和碱金属氢氧化物反应，以制备含有亚磷酸盐的碱金属次磷酸盐的粗溶液，将粗溶液送入电渗析池的脱盐室，其中阳离子交换膜和一价阴离子可渗透 膜交替地布置在阴极和阳极之间以形成至少一对脱盐室和浓缩室，以便将次磷酸盐与粗溶液分离，在此期间将碱性次磷酸盐的稀溶液进料到浓缩的 隔室，进行电渗析，从浓缩室中取出碱金属次磷酸盐的纯化溶液，并浓缩和结晶如此纯化的溶液。
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公开(公告)号：EP0296501A1
公开(公告)日：1988-12-28
申请号：EP88109684.6
申请日：1988-06-16
摘要： Red phosphorus flame retardants for synthetic resin are produced by a method comprising the steps of heating yellow phosphorus at temperatures of 250 to 600 °C to effect a partial conversion of yellow phosphorus to red phosphorus; removing unconverted yellow phosphorus; and coating particles of the resulting red phosphorus with at least one of thermosetting resin and metal hydroxide. The thus obtained red phosphorus flame retardants are very stable because of significantly improved heat resistance, water resistance and weatherability and thus can provide nonflammable resinous compositions which can be used for long period of time. The nonflammable composition consists essentially of 100 parts by weight of polyolefine resin, 20 to 200 parts by weight of hydrated inorganic filler and 0.1 to 30 parts by weight of the coated red phosphorus flame retardant.
摘要翻译： 用于合成树脂的红磷阻燃剂通过包括以下步骤的方法制备：在250-600℃的温度下加热黄磷以使黄磷部分转化为红磷; 去除未转化的黄磷; 并用至少一种热固性树脂和金属氢氧化物涂覆所得红磷的颗粒。 由此获得的红磷阻燃剂由于耐热性，耐水性和耐候性显着改善而非常稳定，因此可以提供长时间使用的不可燃树脂组合物。 不燃组合物基本上由100重量份的聚烯烃树脂，20-200重量份的水合无机填料和0.1-30重量份的涂覆的红磷阻燃剂组成。
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