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1. 发明授权

US4379889A Process for producing polybutadine rubber with enhanced mechanical strength 失效
标题翻译：生产具有增强的机械强度的聚丁二烯橡胶的方法
公开(公告)号：US4379889A
公开(公告)日：1983-04-12
申请号：US216869
申请日：1980-12-16
申请人： Hidetomo Ashitaka , Kyohei Oizumi , Kazuya Jinda , Kazutoshi Inaishi
发明人： Hidetomo Ashitaka , Kyohei Oizumi , Kazuya Jinda , Kazutoshi Inaishi
IPC分类号： C08F4/00 , C08F4/60 , C08F4/70 , C08F36/00 , C08F136/06 , C08F295/00 , C08F4/12
CPC分类号： C08F295/00 , C08F136/06
摘要： A polybutadiene rubber having an enhanced mechanical strength is produced by a process comprising two successive steps of:(A) cis-1,4-polymerizing 1,3-butadiene in a polymerization medium in the presence of a catalyst comprising a cobalt compound and a dialkyl aluminium halide of the formula (I): AlR.sub.2 X, wherein R=C.sub.2 -8 alkyl and X=halogen, and;(B) subjecting a mixture of the resultant cis-1,4-polybutadiene and the non-reacted 1,3-butadiene in the polymerization medium to a 1,2-polymerization in the presence of a catalyst comprising a cobalt compound, a dialkyl aluminium halide of the formula (I), carbon disulfide and an electron donative organic compound.
摘要翻译：具有增强的机械强度的聚丁二烯橡胶通过包括以下两个连续步骤的方法制备：（A）在聚合介质中，在包含钴化合物的催化剂存在下，顺式-1,4-聚合1,3-丁二烯，式（I）的二烷基卤化铝：AlR2X，其中R = C2-8烷基，X =卤素，和（B）将所得到的顺式-1,4-聚丁二烯与未反应的1,3-丁二烯的混合物在聚合介质中进行1,2-聚合，所述催化剂包含钴化合物，二烷基式（I）的卤化铝，二硫化碳和给电子有机化合物。

2. 发明授权

US4684718A Process for the preparation of diazocyano acids by reacting keto-acids with cyanogen compounds 失效
标题翻译：通过使酮酸与氰化合物反应制备重氮氰酸的方法
公开(公告)号：US4684718A
公开(公告)日：1987-08-04
申请号：US676265
申请日：1984-11-29
申请人： Hidetomo Ashitaka , Kazuya Jinda , Yoshiyuki Miwa
发明人： Hidetomo Ashitaka , Kazuya Jinda , Yoshiyuki Miwa
IPC分类号： C07C255/65 , C08F4/04 , C07C101/26 , C07C107/02 , C08G63/68
CPC分类号： C07C255/65
摘要： A process for the preparation of a diazocyano acid, which comprises reacting a keto-acid or its sodium salt with a cyanogen compound such as sodium cyanide or hydrogen cyanide and a hydrazine in water to form a concentrated aqueous solution of a hydrazo compound, adding acetone and/water to the concentrated aqueous solution to form a solution of the hydrazo compounds, adding chlorine gas to the solution to oxidize the hydrazo compound and form a diazocyano acid, adding acetone to the obtained reaction mixture during or after the oxidation if necessary, and separating and recovering the supernatant layer of the acetone-water solution containing the diazocyano acid from the mixture.
摘要翻译：一种制备重氮氰酸的方法，其包括使酮酸或其钠盐与氰化氰或氰化氢等氰化合物和肼在水中反应以形成浓水化合物的水溶液，加入丙酮和/水加入到浓水溶液中以形成氢化合物的溶液，向溶液中加入氯气以氧化氢化合物并形成重氮氰酸，如果需要，在氧化期间或之后向所得反应混合物中加入丙酮，以及从混合物中分离和回收含有重氮氰酸的丙酮 - 水溶液的上清液层。

3. 发明授权

US4504639A Process for polymerizing 1,3-butadiene 失效
标题翻译： 1,3-丁二烯聚合方法
公开(公告)号：US4504639A
公开(公告)日：1985-03-12
申请号：US409607
申请日：1982-08-19
申请人： Haruo Ueno , Hidetomo Ashitaka , Kazuya Jinda , Kouichi Nakajima
发明人： Haruo Ueno , Hidetomo Ashitaka , Kazuya Jinda , Kouichi Nakajima
IPC分类号： C08F4/00 , C08F4/60 , C08F36/00 , C08F136/06 , C08F4/72
CPC分类号： C08F136/06
摘要： A process for polymerizing 1,3-butadiene, comprising bring into contact a 1,2-polymerization catalyst consisting essentially of a soluble cobalt compound, an organic aluminum halide, an organic lithium compound, and carbon disulfide or phenyl isothiocyanate with 1,3-butadiene in a polymerization medium. The process can be applied particularly advantageously in the preparation of 1,2-polybutadiene, and the resultant 1,2-polybutadiene has a content of syndiotactic 1,2-structural units of not less than 90%, a melting point of 200.degree. C. to 220.degree. C., and an intrinsic viscosity [.eta.] of 1.2 to 7.
摘要翻译：使1,3-丁二烯聚合的方法包括使基本上由可溶性钴化合物，有机铝卤化物，有机锂化合物和二硫化碳组成的1,2-聚合催化剂或异硫氰酸苯酯与1,3- 丁二烯在聚合介质中。该方法可以特别有利地用于1,2-聚丁二烯的制备，所得1,2-聚丁二烯的间同立构1,2-结构单元的含量不小于90％，熔点为200℃ 至220℃，特性粘度η为1.2〜7。

4. 发明授权

US4684717A Preparation of azo compounds having carboxyl and cyano groups 失效
标题翻译：具有羧基和氰基的偶氮化合物的制备
公开(公告)号：US4684717A
公开(公告)日：1987-08-04
申请号：US676264
申请日：1984-11-29
申请人： Hidetomo Ashitaka , Kazuya Jinda , Yoshiyuki Miwa
发明人： Hidetomo Ashitaka , Kazuya Jinda , Yoshiyuki Miwa
IPC分类号： C07C255/65 , C08F4/04 , C07C107/02 , C08G63/68
CPC分类号： C07C255/65
摘要： A process for the preparation of a diazocyano acid, which comprises reacting a keto-acid or its sodium salt with a cyanogen compound such as sodium cyanide or hydrogen cyanide and a hydrazine in water to form a concentrated aqueous solution of a hydrazo compound, adding acetone or acetone and water to the concentrated aqueous solution to form an acetone-water solution of the hydrazo compound, adding an oxidant such as chlorine gas to the solution to oxidize the hydrazo compound and form a diazocyano acid, forming at least two transparent liquid layers by adding acetone and/or water to the obtained reaction mixture during or after oxidation if necessary, and further adding sodium chloride to the reaction mixture if necessary, and separating and recovering the upper layer of the acetone-water solution containing the diazocyano acid from the mixture.
摘要翻译：一种制备重氮氰酸的方法，其包括使酮酸或其钠盐与氰化氰或氰化氢等氰化合物和肼在水中反应以形成浓水化合物的水溶液，加入丙酮或丙酮和水加到浓缩的水溶液中以形成氢化合物的丙酮 - 水溶液，向溶液中加入氧化剂如氯气，以氧化氢化合物并形成重氮氰酸，通过以下方式形成至少两个透明液体层如果需要，在氧化过程中或氧化后向所得反应混合物中加入丙酮和/或水，如果需要，向反应混合物中加入氯化钠，并从混合物中分离并回收含有重氮氰酸的丙酮 - 水溶液的上层。

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