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1. 发明授权

US06703476B2 Method for the production of polyamides 失效
标题翻译：生产聚酰胺的方法
公开(公告)号：US06703476B2
公开(公告)日：2004-03-09
申请号：US10168955
申请日：2002-06-24
申请人： Ralf Mohrschladt , Helmut Winterling , Dieter Krauss
发明人： Ralf Mohrschladt , Helmut Winterling , Dieter Krauss
IPC分类号： C08G6908
CPC分类号： C08G69/28 , C08G69/04
摘要： Polyamides are prepared from aminonitriles and water by (1) reacting the aminonitriles with water at from 180 to 350° C. and such a pressure in the range from 30 to 120 bar that a gaseous phase is present as well as a liquid phase, in a first reaction stage, (2) expanding the reaction mixture obtained in the first reaction stage via an evaporator zone or adiabatically with removal of water and ammonia into a second reaction stage, and (3) postcondensing in the second reaction stage at from 0.1 mbar to 5 bar and from 230 to 320° C.
摘要翻译：聚酰胺由氨基腈和水制备，（1）使氨基腈与180至350℃的水反应，并且在30至120巴的范围内使气态物质以及液相存在，第一反应阶段，（2）通过蒸发器区域在第一反应阶段中获得的反应混合物膨胀，或者绝热除去水和氨进入第二反应阶段，和（3）在第二反应阶段在0.1毫巴至5巴和230至320℃

2. 发明授权

US06288207B1 Continuous method for producing polyamides from aminonitriles 失效
标题翻译：从氨腈生产聚酰胺的连续方法
公开(公告)号：US06288207B1
公开(公告)日：2001-09-11
申请号：US09600958
申请日：2000-07-25
申请人： Ralf Mohrschladt , Dieter Krauss , Volker Hildebrandt
发明人： Ralf Mohrschladt , Dieter Krauss , Volker Hildebrandt
IPC分类号： C08G6904
CPC分类号： C08G69/04 , C08G69/08 , C08G69/16
摘要： The continuous process for producing a polyamide by reacting at least one aminonitrile with water comprises the following steps: (1) reacting at least one aminonitrile with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 15×106 Pa in a flow tube containing packing elements of a Brönsted acid catalyst selected from beta-zeolite, sheet-silicate or titanium dioxide packing elements and metallic packing elements to obtain a reaction mixture, (2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or first solid phase or the mixture of first liquid and first solid phase, and (3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 370° C. and a pressure from 0.1 to 30×106 Pa to obtain a product mixture.
摘要翻译：通过使至少一种氨基腈与水反应生产聚酰胺的连续方法包括以下步骤：（1）在90至400℃的温度和0.1至15×10 6 Pa的压力下使至少一种氨基腈与水反应，含有选自β-沸石，片状硅酸盐或二氧化钛填料的布朗斯台德酸催化剂的填充元件和金属填充元素的流动管，以获得反应混合物，（2）使反应混合物在150-400℃下进一步反应和低于步骤1中的压力的压力，选择温度和压力以获得第一气相和第一液体或第一固相或第一固体和第一液相的混合物，第一气相与第一液体或第一固相或第一液体和第一固相的混合物分离，和（3）混合第一液体或第一固相或第一液体和第一固体p的混合物在含有水的温度为150〜370℃，压力为0.1〜30×10 6 Pa的气相或液相中搅拌，得到产物混合物。

3. 发明授权

US06194538B1 Process for producing polyamides from aminonitriles 有权
标题翻译：从氨腈制备聚酰胺的方法
公开(公告)号：US06194538B1
公开(公告)日：2001-02-27
申请号：US09242714
申请日：1999-02-22
申请人： Robert Weiss , Dieter Krauss , Dieter Keller , Gunter Pipper , Wolfgang Harder , Alfons Ludwig , Ralf Mohrschladt
发明人： Robert Weiss , Dieter Krauss , Dieter Keller , Gunter Pipper , Wolfgang Harder , Alfons Ludwig , Ralf Mohrschladt
IPC分类号： C08G6904
CPC分类号： C08G69/04 , C08G69/08 , C08G69/28 , C08G69/36
摘要： A process for preparing a polyamide by reacting at least one aminonitrile with water comprises: (1) reacting at least one aminonitrile with water at a temperature from 100 to 360° C. and a pressure from 0.1 to 35×106 Pa to obtain a reaction mixture, (2) further reacting the reaction mixture at a temperature from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and the pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or the first solid phase or from the mixture of first liquid and first solid phase, and (3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 360° C. and a pressure from 0.1 to 30×106 Pa to obtain a product mixture.
摘要翻译：通过使至少一种氨基腈与水反应制备聚酰胺的方法包括：（1）在100至360℃的温度和0.1至35×10 6 Pa的压力下使至少一种氨基腈与水反应，得到反应混合物，（2）在150-400℃的温度和低于步骤1中的压力的压力下使反应混合物进一步反应，选择温度和压力以获得第一气相和第一液体或第一固相或第一固相和第一液相的混合物，并且第一气相与第一液体或第一固相或第一液体和第一固相的混合物分离，以及（3）将第一液体或第一固相或第一液体和第一固相的混合物与气相或液相在150至360℃的温度和0.1至30×10 6 Pa的压力下包含水以获得产物混合物。

4. 发明授权

US06569988B1 Method for the production of polyamides 失效
标题翻译：生产聚酰胺的方法
公开(公告)号：US06569988B1
公开(公告)日：2003-05-27
申请号：US09979123
申请日：2001-11-19
申请人： Ralf Mohrschladt , Volker Hildebrandt , Dieter Krauss , Martin Leemann
发明人： Ralf Mohrschladt , Volker Hildebrandt , Dieter Krauss , Martin Leemann
IPC分类号： C08G6900
CPC分类号： C08G69/04 , C08G69/28
摘要： In a process for producing polyamides, a mixture comprising hexamethylenediamine and aminocapronitrile and obtained from the hydrogenation of adiponitrile is reacted with water and a dicarboxylic acid.
摘要翻译：在制备聚酰胺的方法中，将由己二胺和氨基己腈组成的并由己二腈加氢得到的混合物与水和二羧酸反应。

5. 发明授权

US06353085B1 Method for producing polyamides 失效
标题翻译：生产聚酰胺的方法
公开(公告)号：US06353085B1
公开(公告)日：2002-03-05
申请号：US09622321
申请日：2000-08-16
申请人： Ralf Mohrschladt , Volker Hildebrandt , Gunter Pipper , Eberhard Fuchs
发明人： Ralf Mohrschladt , Volker Hildebrandt , Gunter Pipper , Eberhard Fuchs
IPC分类号： C08G6914
CPC分类号： C08G69/20 , C08G69/18
摘要： In a process for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts, the metal oxides are used in a form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of or on completion of the polymerization.
摘要翻译：在作为非均相催化剂的金属氧化物存在下通过内酰胺聚合制备聚酰胺的方法中，金属氧化物以允许从反应混合物中机械除去并在完成过程中从反应混合物中除去的形式使用金属氧化物的聚合。

6. 发明授权

US06525167B1 Method for producing polyamide 6 of a low extract content, high viscosity stability and low remonomerization rate 失效
标题翻译：低提取物含量的聚酰胺6的制备方法，高粘度稳定性和低再聚合速率
公开(公告)号：US06525167B1
公开(公告)日：2003-02-25
申请号：US09913122
申请日：2001-08-09
申请人： Ralf Mohrschladt , Volker Hildebrandt , Motonori Yamamoto
发明人： Ralf Mohrschladt , Volker Hildebrandt , Motonori Yamamoto
IPC分类号： C08G6904
CPC分类号： C08G69/04 , C08G69/16
摘要： The continuous process for producing polyamides by reacting at least one aminonitrile with water comprises the following steps: (10) reacting at least one aminonitrile with water at a temperature of from 200 to 290° C. at a pressure of from 40 to 70 bar in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite, sheet-silicate or metal oxide catalyst in the form of a fixed bed, (11) diabatically or adiabatically expanding the reaction mixture from step (1) into a first separation zone to a pressure of from 20 to 40 bar, the pressure being at least 10 bar lower than the pressure in step (1), and to a temperature within the range from 220 to 290° C. by flash evaporation and removal of ammonia, water and any aminonitrile monomer and oligomer, (12) further reacting the reaction mixture from step (2) in the presence of water at a temperature of from 200 to 290° C. and a pressure of from 25 to 55 bar and in the presence or absence of a Brönsted acid catalyst selected from a beta-zeolite, sheet-silicate or metal oxide catalyst in the form of a fixed bed, (13) diabatically or adiabatically expanding the reaction mixture from step (3) into a second separation zone to a pressure of from 0.01 to 20 bar, the pressure being at least 20 bar lower than the pressure in step (3), and to a temperature within the range from 220 to 290° C. by flash evaporation and removal of ammonia, water and any aminonitrile monomer and oligomer.
摘要翻译：通过使至少一种氨基腈与水反应生产聚酰胺的连续方法包括以下步骤：（10）在200至290℃的温度下，在40至70巴的压力下使至少一种氨基腈与水反应，含有布朗斯台德酸催化剂的流动管，其选自固体床形式的β-沸石，硅酸盐或金属氧化物催化剂，（11）将反应混合物从步骤（1）进行绝热或绝热膨胀到第一分离区压力为20至40巴，压力比步骤（1）中的压力低至少10巴，并且通过闪蒸和除去氨，水的温度在220至290℃的范围内和任何氨基腈单体和低聚物，（12）在水存在下，在200-290℃的温度和25至55巴的压力下，使步骤（2）的反应混合物进一步反应，并在没有布朗斯台德酸催化剂选择f 以固定床形式的β-沸石，片状硅酸盐或金属氧化物催化剂（13）将步骤（3）的反应混合物从第二分离区中分离或绝热膨胀至压力为0.01至20巴，压力比步骤（3）中的压力低至少20巴，并通过闪蒸和氨，水和任何氨基腈单体和低聚物的除去而达到220-290℃的温度。

7. 发明授权

US06326460B1 Method for extracting polyamide particles 失效
标题翻译：提取聚酰胺颗粒的方法
公开(公告)号：US06326460B1
公开(公告)日：2001-12-04
申请号：US09622307
申请日：2000-08-16
申请人： Ralf Mohrschladt , Volker Hildebrandt , Volker Warzelhan
发明人： Ralf Mohrschladt , Volker Hildebrandt , Volker Warzelhan
IPC分类号： C08G6946
CPC分类号： C08G69/46 , C08G69/04 , C08G69/28
摘要： Polyamide particles, or polymer particles comprising polyamides, are extracted with aqueous solutions of aminonitiles and optionally further polyamide-forming monomers, polyamide-forming oligomers or mixtures thereof.
摘要翻译：包含聚酰胺的聚酰胺颗粒或聚合物颗粒用氨基腈水溶液和任选的其它聚酰胺形成单体，聚酰胺形成的低聚物或其混合物的水溶液萃取。

8. 发明授权

US06548626B1 Method for preparing polyamides from lactams and polyamide extracts 失效
标题翻译：从内酰胺和聚酰胺提取物制备聚酰胺的方法
公开(公告)号：US06548626B1
公开(公告)日：2003-04-15
申请号：US09980522
申请日：2001-12-03
申请人： Ralf Mohrschladt , Volker Hildebrandt , Alfons Ludwig
发明人： Ralf Mohrschladt , Volker Hildebrandt , Alfons Ludwig
IPC分类号： C08G6902
CPC分类号： C08G69/16 , C08G69/04 , C08G69/18 , C08G69/20
摘要： A process for producing polyamides by reacting at least one lactam and optionally further polyamide-forming monomers with aqueous monomer and oligomer extracts obtained during the extraction with water of the polymer product obtained in the production of polyamides, the water content of the reaction mixture being in the range from 0.5 to 13% by weight comprises conducting the reaction in the presence of metal oxides, beta-zeolites, sheet-silicates or silica gels, which may be doped, as heterogeneous catalysts, the heterogeneous catalysts being used in the form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of the polymerization or after it has ended.
摘要翻译：通过使至少一种内酰胺和任选的另外的聚酰胺形成单体与在提取期间获得的聚合物产物中获得的单体和低聚物提取物的水反应制备聚酰胺的方法，反应混合物的水含量在 0.5至13重量％的范围包括在金属氧化物，β-沸石，片状硅酸盐或二氧化硅凝胶的存在下进行反应，其可以掺杂作为多相催化剂，以允许的形式使用的多相催化剂在反应混合物中机械除去并在聚合过程中或在其结束后从反应混合物中除去。

9. 发明授权

US06531570B1 Accelerator for the production of polyamides from aminonitriles 失效
标题翻译：用于从氨腈生产聚酰胺的加速剂
公开(公告)号：US06531570B1
公开(公告)日：2003-03-11
申请号：US09806147
申请日：2001-03-28
申请人： Ralf Mohrschladt , Volker Hildebrandt
发明人： Ralf Mohrschladt , Volker Hildebrandt
IPC分类号： C08G6904
CPC分类号： C08G69/20 , C08G69/04 , C08G69/16
摘要： Disclosed are the use of lactams, aminocarboxylic acids or mixtures thereof as acceleratant or cocatalyst in the production of polyamides from aminonitriles and water, and a suitable process therefor.
摘要翻译：公开了在由氨基腈和水制备聚酰胺中使用内酰胺，氨基羧酸或其混合物作为加速剂或助催化剂及其合适的方法。

10. 发明授权

US06359020B1 Method for producing polyamides from aminonitriles 有权
标题翻译：从氨腈制备聚酰胺的方法
公开(公告)号：US06359020B1
公开(公告)日：2002-03-19
申请号：US09600070
申请日：2000-07-11
申请人： Ralf Mohrschladt
发明人： Ralf Mohrschladt
IPC分类号： C08J1104
CPC分类号： C08G69/08 , C08G69/04 , C08G69/16 , C08G69/18
摘要： Aqueous monomer and oligomer extracts obtained from polyamide production by extraction of the polymer with water are used for producing polyamides by direct reaction with aminonitriles.
摘要翻译：通过用水提取聚合物由聚酰胺生产获得的含水单体和低聚物提取物用于通过与氨基腈直接反应制备聚酰胺。

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