公开(公告)号：US5543444A

公开(公告)日：1996-08-06

申请号：US287937

申请日：1994-08-09

申请人： Tsuyoshi Kobayashi ,  Ichiro Sakon ,  Shigeo Nakashima ,  Sachiko Numa ,  Yoshikazu Inao

发明人： Tsuyoshi Kobayashi ,  Ichiro Sakon ,  Shigeo Nakashima ,  Sachiko Numa ,  Yoshikazu Inao

IPC分类号： C08K3/02 ,  C01B25/00 ,  C08K9/02 ,  C08K9/04 ,  C08K9/08 ,  C08L101/00 ,  C09C3/00 ,  C09K21/04 ,  C08K3/32 ,  B32B9/04 ,  C08K3/20

CPC分类号： C01B25/006 ,  C08K9/02 ,  C08K9/08 ,  Y10T428/2998

摘要： Disclosed is a red phosphorus flame retardant comprising a fine red phosphorus powder subjected to a surface modification treatment, said fine red phosphorus powder consisting of spherical red phosphorus particles and/or agglomerates thereof directly obtained by the thermal conversion of white phosphorus in the presence of a dispersant and has an average particle size of 10 .mu.m or smaller and of which at least 80% by weight is accounted for by particles having particle sizes of 20 .mu.m or smaller, said flame retardant having an average particle size of 15 .mu.m or smaller, with the particles having particle sizes of 35 .mu.m or smaller accounting for at least 80% by weight of the flame retardant; and a nonflammable resinous composition composed of a synthetic resin and the red phosphorus flame retardant.

摘要翻译： 公开了一种红磷阻燃剂，其包含进行表面改性处理的细红磷粉末，所述的细红磷粉末由球形红磷颗粒和/或其附聚物组成，其通过白色磷的热转化直接获得 分散剂，其平均粒径为10μm以下，其中至少80重量％由粒径20μm以下的粒子构成，所述阻燃剂的平均粒径为15μm，或 较小，粒径为35μm或更小的颗粒占阻燃剂的至少80重量％; 以及由合成树脂和红磷阻燃剂组成的不可燃树脂组合物。

公开(公告)号：US5292494A

公开(公告)日：1994-03-08

申请号：US19258

申请日：1993-02-18

申请人： Yoshikazu Inao ,  Yasuo Nojiri ,  Katsutoshi Shibata

发明人： Yoshikazu Inao ,  Yasuo Nojiri ,  Katsutoshi Shibata

IPC分类号： C01B25/023 ,  C01B25/01 ,  C01B25/02 ,  C01B25/04

CPC分类号： C01B25/023

摘要： A process for the production of a red phosphorus powder, which comprises heating a yellow phosphorus at the boiling point therof in the presence of a dispersant selected from the group of a surfactant, a sparingly in water, finely powdered inorganic compound, an inorganic ammonium salt or an organic compound containing an amino group, thereby to partly convert the yellow phosphorus to red phosphorus, removing most of the unconverted yellow phosphorus by distillation at the boiling point of yellow phosphorus, and further removing the slight amount of the still remaining yellow phosphorus by heating a temperature not lower than the boiling point of yellow phosphorus to obtain a red phosphorus fine powder which is less apt to undergo a disproportionation reaction.

摘要翻译： 一种制备红磷粉末的方法，其包括在选自表面活性剂，微量水，细粉状无机化合物，无机铵盐的分散剂的存在下，在沸点下加热黄磷 或含有氨基的有机化合物，从而将黄磷部分地转化为红磷，通过在黄磷沸点下蒸馏除去大部分未转化的黄磷，并通过以下方式进一步除去少量的剩余的黄磷： 加热不低于黄磷沸点的温度，得到不容易发生歧化反应的红磷细粉末。