公开(公告)号：US4108828A

公开(公告)日：1978-08-22

申请号：US586960

申请日：1975-06-16

Applicant: Jean W. Bouchoux ,  William A. Larkin

Inventor： Jean W. Bouchoux ,  William A. Larkin

IPC: C07D201/18 ,  C08G69/18 ,  C08K5/57 ,  C08G69/14

CPC classification number: C08K5/57 ,  C07D201/18 ,  C08G69/18

Abstract: Hexaorgano distannanes of the general formula R.sub.3 Sn--SnR.sub.3 significantly reduce or eliminate the discoloration which occurs when mixtures containing an alkali metal salt of a lactam are stored under an inert atmosphere for extended periods of time at temperatures between ambient and 100.degree. C. R in the foregoing formula represents a monovalent hydrocarbon radical containing between 1 and 20 carbon atoms.

Abstract translation: 通式为R 3 Sn-SnR 3的六碳偶氮二苯胺显着降低或消除了当含有内酰胺的碱金属盐的混合物在惰性气氛下在环境温度和100℃之间的温度下长时间储存​​时发生的变色。 上述式表示含有1至20个碳原子的单价烃基。

公开(公告)号：US08772477B2

公开(公告)日：2014-07-08

申请号：US13260268

申请日：2010-04-27

Applicant: Philippe Leconte

Inventor： Philippe Leconte

IPC: C07D201/18

CPC classification number: C07D201/08 ,  C07D223/10

Abstract: A method for preparing lactams by cyclizing hydrolysis of a corresponding aminonitrile is described. A method for manufacturing a lactam by reacting an aminonitrile with water in the presence of a catalyst involving placing the water and the aminonitrile in contact in vapor phase, passing the mixture of vapors through a bed of catalyst arranged in at least one tube forming a reaction chamber and recovering the lactam at the outlet of the tube is also described.

Abstract translation: 描述了通过环化相应的氨基腈的水解制备内酰胺的方法。 一种在催化剂存在下使氨基腈与水反应的方法，所述催化剂涉及使水和氨基腈气相接触，使蒸汽混合物通过排列在形成反应的至少一个管中的催化剂床 还描述了在管的出口处回收内酰胺的腔室。

公开(公告)号：US2849446A

公开(公告)日：1958-08-26

申请号：US43292754

申请日：1954-05-27

Applicant: DU PONT

Inventor： SULLIVAN ROBERT H

IPC: C07D201/18

CPC classification number: C07D201/18

公开(公告)号：US4319881A

公开(公告)日：1982-03-16

申请号：US202082

申请日：1980-10-30

Applicant: Zdenek Koci ,  Andres Schaub

Inventor： Zdenek Koci ,  Andres Schaub

IPC: C07D201/18 ,  D06P3/60 ,  D06P3/82

CPC classification number: D06P3/6033 ,  C07D201/18 ,  D06P3/8233 ,  Y10S8/918

Abstract: Dyes difficultly soluble or insoluble in water are used together with specific auxiliaries to dye or print textile material made from cellulose fibres, or mixtures thereof with synthetic fibres. These auxiliaries effect an increased dye yield, particularly on the cellulose material, and level tone-in-tone dyeings on mixed fabrics.

Abstract translation: 难以溶解或不溶于水的染料与特定助剂一起使用以将由纤维素纤维制成的纺织材料或其与合成纤维的混合物染色或印刷。 这些助剂会增加染料的产率，特别是纤维素材料和混合织物上的色调色调染色。

公开(公告)号：US3907781A

公开(公告)日：1975-09-23

申请号：US48260174

申请日：1974-06-24

Applicant: STAMICARBON

Inventor： DE ROOIJ ABRAHAM H ,  ELMENDORP JAN

IPC: C01C1/24 ,  C01C1/242 ,  C05C3/00 ,  C07D201/16 ,  C07D201/18

CPC classification number: C07D201/16 ,  E05Y2900/104

Abstract: Epsilon -CAPROLACTAM IS RECOVERED FROM A Beckmann rearrangement mixture of the lactam and aqueous sulfuric acid by simultaneously neutralizing the rearrangement mixture with ammonia at a pressure of 1-5 atmospheres and crystallizing out ammonium sulfate, the heat liberated by the neutralization reaction is removed from the system by evaporating a portion of the water from the solution. At the conditions employed hydrolysis of the lactam is substantially reduced if not entirely avoided.

Abstract translation: 通过在1-5个大气压的压力下同时用氨中和重排混合物并结晶出硫酸铵，将ε-CAPROLACTAM从内酰胺和硫酸水溶液的贝克曼重排混合物中回收，中和反应释放的热量从 系统通过从溶液中蒸发一部分水。 在使用条件下，如果不完全避免，内酰胺的水解将显着降低。

公开(公告)号：US4038198A

公开(公告)日：1977-07-26

申请号：US571133

申请日：1975-04-24

Applicant: Kuno Wagner ,  Karlheinz Andres

Inventor： Kuno Wagner ,  Karlheinz Andres

IPC: C07D241/08 ,  C07D201/02 ,  C07D201/18 ,  C07D207/263 ,  C08F2/04 ,  C08G8/28 ,  C08G12/40 ,  C08G18/38 ,  C08G18/40 ,  C08G18/67 ,  C08G85/00 ,  C08G18/30 ,  C08G18/34 ,  C09K3/00

CPC classification number: C08G18/38 ,  C07D201/18 ,  C08G12/40 ,  C08G18/40 ,  C08G18/67 ,  C08G8/28 ,  C08G85/00

Abstract: The present invention relates to storage stable multi-component mixtures containing:A. at least one compound selected from the group consisting of lactams and aza lactams;B. at least one compound selected from the group consisting of water, and difunctional acid-group-free organic compounds containing functional groups selected from the group consisting of hydroxyl, primary amino-, secondary amino, and sulfhydryl groups; andC. at least one acid selected from the group consisting ofI. mono- and poly-carboxylic acids,Ii. organic and inorganic acids of phosphorus,Iii. inorganic acids of boron, andIv. partially hydrolyzed antimonous and antimonic acid esters of polyhydroxyl compounds with molecular weights of from 62 to 600.

公开(公告)号：US3954738A

公开(公告)日：1976-05-04

申请号：US430690

申请日：1974-01-04

Applicant: Jean W. Bouchoux ,  William A. Larkin

Inventor： Jean W. Bouchoux ,  William A. Larkin

IPC: C07D201/18 ,  C08G69/18 ,  C08K5/57 ,  C07D223/10

CPC classification number: C08K5/57 ,  C07D201/18 ,  C08G69/18

Abstract: Hexaorgano distannanes of the general formula R.sub.3 Sn-SnR.sub.3 significantly reduce or eliminate the discoloration which occurs when mixtures containing an alkali metal salt of a lactam are stored under an inert atmosphere for extended periods of time at temperatures between ambient and 100.degree.C. R in the foregoing formula represents a monovalent hydrocarbon radical containing between 1 and 20 carbon atoms.

Abstract translation: 通式为R 3 Sn-SnR 3的六碳偶氮二苯胺显着降低或消除了当含有内酰胺的碱金属盐的混合物在惰性气氛下在环境温度和100℃之间的温度下长时间储存​​时发生的变色。 上述式表示含有1至20个碳原子的单价烃基。

公开(公告)号：US2764588A

公开(公告)日：1956-09-25

申请号：US37344053

申请日：1953-08-10

Applicant: PHILLIPS PETROLEUM CO

Inventor： MERTZ CLYDE W

IPC: C07D201/18 ,  C07D213/06

CPC classification number: C07D213/06 ,  C07D201/18