公开(公告)号：US4011254A

公开(公告)日：1977-03-08

申请号：US605865

申请日：1975-08-19

申请人： Tatsumi Kobayashi ,  Yutaka Takakura ,  Sadafumi Yoshino ,  Yoshiaki Fukuda

发明人： Tatsumi Kobayashi ,  Yutaka Takakura ,  Sadafumi Yoshino ,  Yoshiaki Fukuda

IPC分类号： C07C255/30 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C120/00 ,  C07C121/45

CPC分类号： C07C255/00

摘要： Diaminomaleonitrile which is produced by the tetramerization of hydrogen cyanide is purified by heating a crude diaminomaleonitrile in an inert liquid or in an inert atmosphere at a temperature of 90.degree. to 140.degree. C, preferably 100.degree. to 120.degree. C, and then extracting pure diaminomaleonitrile having a purity of about 99% from said heated crude diaminomaleonitrile with a solvent.

公开(公告)号：US3971820A

公开(公告)日：1976-07-27

申请号：US526631

申请日：1974-11-25

申请人： Tatsumi Kobayashi ,  Eiji Nishiwaki ,  Shigeharu Yamazoe ,  Mitsuyuki Hoshino ,  Sadafumi Yoshino ,  Katsunori Mikuma

发明人： Tatsumi Kobayashi ,  Eiji Nishiwaki ,  Shigeharu Yamazoe ,  Mitsuyuki Hoshino ,  Sadafumi Yoshino ,  Katsunori Mikuma

IPC分类号： C07C120/00 ,  C07C121/30

CPC分类号： C07C255/00

摘要： A process for tetramerizing hydrogen cyanide to diaminomaleonitrile, wherein hydrogen cyanide is polymerized in an organic solvent in the presence of a basic catalyst and a cocatalyst of the group consisting of organic mercaptans and organic disulfides.

摘要翻译： 将氰化氢四聚化为二氨基马来腈的方法，其中在碱性催化剂和由有机硫醇和有机二硫化物组成的组的助催化剂存在下，在有机溶剂中使氰化氢聚合。

公开(公告)号：US06277217B1

公开(公告)日：2001-08-21

申请号：US09290264

申请日：1999-04-13

申请人： Sadafumi Yoshino ,  Seiichi Koike ,  Eitarou Koya ,  Masahiko Nakagawa

发明人： Sadafumi Yoshino ,  Seiichi Koike ,  Eitarou Koya ,  Masahiko Nakagawa

IPC分类号： C22C2106

CPC分类号： C22C21/06

摘要： An aluminum alloy comprises magnesium in a range of 3.0% by weight≦Mg≦5.5% by weight, manganese in a range of 1.5% by weight≦Mn≦2.0% by weight, nickel in a range of 0.5% by weight≦Ni≦0.9% by weight, and the balance of aluminum including inevitable impurities. Particularly, the Ni content is set in the above range in order to achieve an increase in toughness of a die-cast product. Thus, it is possible to suppress the amount of an intermetallic compound AlMnNi produced and to finely divide the intermetallic compound AlMnNi.

摘要翻译： 铝合金包含3.0重量％以下的镁，Mg = 5.5重量％，1.5重量％以上的锰，Mn = 2.0重量％，0.5重量％以下的镍， 重量<= Ni <= 0.9％（重量），余量为不可避免的杂质。 特别地，为了实现压铸产品的韧性的提高，将Ni含量设定在上述范围内。 因此，可以抑制所生成的金属间化合物AlMnNi的量并使金属间化合物AlMnNi细分。