公开(公告)号：EP0794201A4

公开(公告)日：2001-01-24

申请号：EP96931981

申请日：1996-09-25

申请人： NIPPON CATALYTIC CHEM IND

发明人： KANTO TERUYUKI ,  UEDA KENICHI ,  FUJIOKA KAZUMI ,  KISHINO KAZUO

IPC分类号： C08F220/18 ,  C08F222/40 ,  C07D207/44 ,  C08F220/14

CPC分类号： C08F220/18 ,  C08F222/40

摘要： A raw material used for producing heat-resistant resins of the present invention contains N-cyclohexyl maleimide containing 0.001 to 1 weight percent of cyclohexylamino succinic anhydride, as a principal component. Heat-resistant resins and the process for producing the heat-resistant resins of the present invention are achieved by polymerizing the raw material and at least one kind of monomer which is copolymerizable with the raw material. Therefore, the heat-resistant resins produced from the raw material have excellent transparency, i.e., a low coloring factor, even when higher heat resistance is imparted to the heat-resistant resins by increasing the amount of the raw material containing N-cyclohexyl maleimide as a principal component. Thus, the heat-resistant resins are suitably used in fields requiring heat resistance as well as a low coloring factor.

摘要翻译： 用于生产本发明的耐热性树脂的原料含有N-环己基马含有0.001〜1％（重量）环己基氨基琥珀酸酐，作为主要成分。 耐热树脂和生产本发明的耐热性树脂的过程中由原料和至少一种的单体的所有其是共聚的原料聚合来实现的。 因此，从原料所产生的耐热性树脂具有优异的透明性，即，低的着色因子，即使当较高的耐热性赋予耐热性树脂通过增加原料含N-环己基马来酰亚胺作为量 主要成分。 因此，耐热性树脂在要求耐热性以及低的着色因子字段适当地使用。

公开(公告)号：EP0627420A4

公开(公告)日：1995-05-10

申请号：EP93902550

申请日：1993-01-29

申请人： NIPPON CATALYTIC CHEM IND

发明人： KITA YUICHI ,  NAKAGAWA KOICHI ,  KISHINO KAZUO

IPC分类号： C07D207/44 ,  C07D207/448

CPC分类号： C07D207/448

摘要： A stabilized maleimide compound which is hardly discolored during storage, wherein the content of primary amines is 500 ppm or less, that of maleic anhydride is 5-2,000 ppm, and that of 2-amino-N-substituted succinimide is 300 ppm or less. It is preferable that the content of chlorine compounds be 10 ppm or less in terms of chlorine and that of volatile components having each a boiling point of 200 DEG C or below under an ordinary pressure be 2,000 ppm or less.

公开(公告)号：EP0672650A4

公开(公告)日：1996-05-01

申请号：EP94914596

申请日：1994-05-09

申请人： NIPPON CATALYTIC CHEM IND

发明人： KUME YASUHIRO ,  KANEI HITOSHI ,  MORITA TAKEHIKO ,  KISHINO KAZUO ,  KITA YUICHI

IPC分类号： C07C231/02 ,  C07C231/12 ,  C07D207/44 ,  C07D207/448 ,  C07C233/09

CPC分类号： C07D207/448 ,  C07C231/02 ,  C07C231/12

摘要： A process for producing an N-unsubstituted maleimide by imidating an N-unsubstituted maleamic ester through elimination of alcohol molecule and ring closure, wherein use is made of an acidic catalyst or mono(cyclo)alkyl sulfate and it is preferable to lower the alcohol concentration in the reaction mixture. When maleamic acid is reacted with an alcohol by using an inert solvent and an acidic catalyst, a mixture of maleamic with an acidic catalyst, or a mono(cyclo)alkyl sulfate, a corresponding maleamic ester is obtained. Maleamic acid is produced by the reaction of maleic anhydride with ammonia in an inert solvent, which reaction is conducted by feeding a solution of maleic anhydride in an inert solvent into a reactor and feeding ammonia gas into an open space of the reactor to cause the ammonia to be absorbed in the solution via the surface of contact of the solution with the gas.

摘要翻译： 通过消除醇分子和闭环而酰胺化N-未取代的马来酰胺酯来制备N-未取代的马来酰亚胺的方法，其中使用酸性催化剂或单（环）烷基硫酸盐，并且优选降低醇浓度 在反应混合物中。 当使用惰性溶剂和酸性催化剂使马来酰胺酸与醇反应时，得到马来酰胺与酸性催化剂或单（环）烷基硫酸盐的相应的马来酰胺酯的混合物。 通过马来酸酐与氨在惰性溶剂中的反应产生马来酰胺酸，该反应通过将马来酸酐在惰性溶剂中的溶液进料到反应器中并将氨气送入反应器的开放空间中而引起氨 通过溶液与气体的接触表面吸收在溶液中。