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    Recovery of caprolactam from oligomers and/or polymers of caprolactam
    1.
    发明授权
    Recovery of caprolactam from oligomers and/or polymers of caprolactam 失效
    从己内酰胺的低聚物和/或聚合物回收己内酰胺

    公开(公告)号：US5360905A

    公开(公告)日：1994-11-01

    申请号：US60972

    申请日：1993-05-14

    申请人： Hugo Fuchs ,  Claus-Ulrich Priester ,  Gerald Neubauer ,  Erwin Brunner ,  Josef Ritz ,  Michael Kopietz

    发明人： Hugo Fuchs ,  Claus-Ulrich Priester ,  Gerald Neubauer ,  Erwin Brunner ,  Josef Ritz ,  Michael Kopietz

    IPC分类号： C08J11/00 ,  C07D201/12 ,  C08J11/14

    CPC分类号： C07D201/12

    摘要： A process for recovering caprolactam from oligomers and/or polymers of caprolactam comprises the following steps:a) treating oligomers and/or polymers of caprolactam with from 1 to 20 parts by weight of water per part by weight of oligomer or polymer at from 200.degree. to 350.degree. C. under superatmospheric pressure with a residence time of from 0.5 to 10 hours to form an aqueous reaction mixture comprising polycaprolactam, monomeric caprolactam and oligomers thereof, andb) passing the aqueous reaction mixture obtained in a) into a fluidized bed of alumina at from 250.degree. to 400.degree. C. to obtain a mixture of steam and caprolactam.

    摘要翻译： 从己内酰胺的低聚物和/或聚合物中回收己内酰胺的方法包括以下步骤：a）在200℃下用每重量份低聚物或聚合物1至20重量份水处理己内酰胺的低聚物和/或聚合物 在超大气压下加热至350℃，停留时间为0.5至10小时，以形成包含聚己内酰胺，单体己内酰胺及其低聚物的含水反应混合物，和b）将a）中得到的含水反应混合物送入流化床 氧化铝在250-400℃下反应，得到蒸汽与己内酰胺的混合物。

    Obtaining caprolactam by cleavage of molten polycaprolactam
    2.
    发明授权
    Obtaining caprolactam by cleavage of molten polycaprolactam 失效
    通过熔融聚己内酰胺的裂解获得己内酰胺

    公开(公告)号：US5536831A

    公开(公告)日：1996-07-16

    申请号：US355285

    申请日：1994-12-12

    申请人： Michael Kopietz ,  Alan Handerman ,  Simon Jones ,  Ulrich Kalck ,  Claus-Ulrich Priester ,  Heinz Auer ,  Josef Ritz ,  Hugo Fuchs ,  Paul Pijl

    发明人： Michael Kopietz ,  Alan Handerman ,  Simon Jones ,  Ulrich Kalck ,  Claus-Ulrich Priester ,  Heinz Auer ,  Josef Ritz ,  Hugo Fuchs ,  Paul Pijl

    IPC分类号： B01J8/10 ,  C07D201/12 ,  C08G69/14 ,  C08J11/16

    CPC分类号： C07D201/12

    摘要： Caprolactam is obtained from caprolactam-containing polymers in the presence of a base under reduced pressure by depolymerizing polymers which contain the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--] or mixtures consisting essentially offrom 50 to 99.99% by weight of a polymer containing the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--]--from 0.01 to 50% by weight of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes,from 0 to 10% by weight of organic and/or inorganic additives,from 0 to 40% by weight of non-polyamide-containing polymers andfrom 0 to 20% by weight of polyamides, with the exception of polycaprolactam and copolyamides prepared from caprolactam,in at least two depolymerization reactors connected in series.

    摘要翻译： 己内酰胺通过在碱存在下在减压下由含有重复单元 - [ - N（H） - （CH 2）5 -C（O） - ]的聚合物或基本上由 50至99.99重量％的含有重复单元的聚合物 - [ - N（H） - （CH 2）5 -C（O） - ] - 0.01至50重量％的选自无机填料 有机和无机颜料和染料，0至10重量％的有机和/或无机添加剂，0至40重量％的非聚酰胺聚合物和0至20重量％的聚酰胺，其中 在由至少两个解聚反应器串联连接的己内酰胺制备的聚己内酰胺和共聚酰胺的例外。

    Obtaining caprolactam by cleavage of molten polycaprolactam
    3.
    发明授权
    Obtaining caprolactam by cleavage of molten polycaprolactam 失效
    通过熔融聚己内酰胺的裂解获得己内酰胺

    公开(公告)号：US5455346A

    公开(公告)日：1995-10-03

    申请号：US355283

    申请日：1994-12-12

    申请人： Michael Kopietz ,  Ulrich Kalck ,  Simon Jones ,  Peter Bassler ,  Claus-Ulrich Priester

    发明人： Michael Kopietz ,  Ulrich Kalck ,  Simon Jones ,  Peter Bassler ,  Claus-Ulrich Priester

    IPC分类号： C07D201/12

    CPC分类号： C07D201/12

    摘要： Caprolactam is obtained from mixtures which contain polymers or thermoplastic molding materials having the repeating unit--N(H)--(CH.sub.2).sub.5 --C(O)--(a) by cleavage at elevated temperatures in the presence of a base under reduced pressure or (b) in the presence of water, by using a mixture essentially comprisingfrom 50 to 99.9% by weight of a polymer or of a thermoplastic molding material having the repeating unit--N(H)--(CH.sub.2).sub.5 --C(O)--from 0.1 to 50% by weight of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes,from 0 to 10% by weight of organic and/or inorganic additives,from 0 to 40% by weight of non-polyamide-containing polymers andfrom 0 to 20% by weight of polyamides, with the exception of polycaprolactam and copolyamides prepared from caprolactam,and carrying out the cleavage in the presence of a base under reduced pressure, the water content of the mixture used being not more than 0.01% by weight, or carrying out the cleavage in the presence of water without the addition of acid or base at from 270.degree. to 350.degree. C. and a weight ratio of water to polymer or thermoplastic molding material of from 1:1 to 20:1 and in a reaction time of less than 3 hours.

    摘要翻译： 己内酰胺由含有聚合物或具有重复单元-N（H） - （CH 2）5 -C（O） - （a）的聚合物或热塑性模塑材料的混合物获得，通过在碱的存在下在减压下在升高的温度下裂解，或 （B）在水的存在下，通过使用基本上包含50-99.9重量％的聚合物或具有重复单元-N（H） - （CH 2）5 -C（O）的热塑性模塑材料的混合物， - 0.1至50重量％的选自无机填料，有机和无机颜料和染料的添加剂，0至10重量％的有机和/或无机添加剂，0至40重量％的非 - 聚酰胺的聚合物和0〜20重量％的聚酰胺，但是由己内酰胺制备的聚己内酰胺和共聚酰胺除外，在减压下在碱的存在下进行裂解，所用混合物的水含量为 不大于0.01重量％，或进行切割 在没有在270-350℃下加入酸或碱的水存在下，水与聚合物或热塑性成型材料的重量比为1:1至20:1，反应时间小于 3小时。

    METHOD FOR THE PRODUCTION OF POLYAMIDES IN EXTRUDERS
    5.
    发明申请
    METHOD FOR THE PRODUCTION OF POLYAMIDES IN EXTRUDERS 有权
    在挤出机中生产聚氨酯的方法

    公开(公告)号：US20100190952A1

    公开(公告)日：2010-07-29

    申请号：US12665585

    申请日：2008-06-11

    申请人： Phillippe Desbois ,  Michael Kopietz ,  Ralf Neuhaus ,  Hagen Stawitzki ,  Hans-Joachim Weis ,  Jochen Engelmann

    发明人： Phillippe Desbois ,  Michael Kopietz ,  Ralf Neuhaus ,  Hagen Stawitzki ,  Hans-Joachim Weis ,  Jochen Engelmann

    IPC分类号： C08G69/28

    CPC分类号： C08G69/265 ,  B29C47/822 ,  C08G69/30

    摘要： In a process for preparing a polyamide based on dicarboxylic acids and diamines in an extruder, a solid mixture comprising a monomer mixture composed of 50 mol % of dicarboxylic acid mixture composed of from 60 to 88 % by weight of terephthalic acid and from 12 to 40% by weight of isophthalic acid, in which up to 20% by weight of the dicarboxylic acid mixture may also be replaced by other dicarboxylic acids, and 50 mol % of hexamethylenediamine which may be up to 20% by weight replaced by other C2-30-diamines, in a corotatory twin-screw extruder for a residence time of from 10 seconds to 30 minutes, is heated to a temperature in the range from 150 to 400° C. while removing steam and if appropriate diamines through venting orifices.

    摘要翻译： 在挤出机中制备基于二羧酸和二胺的聚酰胺的方法中，包含由50摩尔％的由对苯二甲酸的重量比为60-88％的二羧酸混合物和12-40的二羧酸混合物组成的单体混合物的固体混合物 重量％的间苯二甲酸，其中高达20重量％的二羧酸混合物也可以被其它二羧酸代替，并且50摩尔％的六亚甲基二胺可以被其他C2-30重量代替 - 二胺在旋转双螺杆挤出机中停留时间为10秒至30分钟，加热至150-400℃的温度，同时除去蒸汽，如果合适的话，将其加热至通过排气孔。

    Process for producing a polyamide based on a dicarboxylic acid and a diamine
    7.
    发明授权
    Process for producing a polyamide based on a dicarboxylic acid and a diamine 失效
    用于制备基于二羧酸和二胺的聚酰胺的方法

    公开(公告)号：US06187877B1

    公开(公告)日：2001-02-13

    申请号：US08930865

    申请日：1997-10-07

    申请人： Walter Götz ,  Jürgen Hofmann ,  Michael Kopietz ,  Helmut Horle

    发明人： Walter Götz ,  Jürgen Hofmann ,  Michael Kopietz ,  Helmut Horle

    IPC分类号： C08G8500

    CPC分类号： C08G69/04 ,  C08G69/28 ,  C08G73/1025 ,  C08G73/1039 ,  C08G73/1042 ,  G03F7/0045 ,  G03F7/0387 ,  G11B5/486 ,  G11B21/00 ,  H05K1/056 ,  Y10S428/901

    摘要： A polymer based on a dicarboxylic acid and a diamine is prepared by polycondensation in an extruder, by (a) heating a mixture of a dicarboxylic acid having from 4 to 12 carbon atoms and a diamine having from 4 to 12 carbon atoms, which mixture is solid at room temperature and has a residual moisture content of less than 5% by weight, to a temperature in the range from 150 to 400° C. under autogenous pressure in a contrarotating twin-screw extruder to give a product A, (b) feeding the product A to a corotating twin-screw extruder, with the product A being exposed to a temperature in the range from 150 to 400° C. and residual water present and also water from the polycondensation being removed through the degassing openings, to give a product B, with the proviso that the corotating twin-screw extruder has at least two segments having different pressures.

    摘要翻译： 通过在（a）加热具有4至12个碳原子的二羧酸和具有4至12个碳原子的二胺的混合物在挤出机中缩聚制备基于二羧酸和二胺的聚合物，该混合物为 在相反的双螺杆挤出机中，在自生压力下，在室温下固体残留水分含量小于5重量％，至150-400℃的温度，得到产物A，（b） 将产品A进料到同向旋转的双螺杆挤出机中，使产物A暴露于150-400℃的温度和存在的残留水以及来自缩聚的水通过脱气孔除去，得到 产品B，条件是共转化双螺杆挤出机具有至少两个具有不同压力的段。

    Process for producing caprolactam through hydrolytic cleavage of molten polycaprolactam
    8.
    发明授权
    Process for producing caprolactam through hydrolytic cleavage of molten polycaprolactam 失效
    通过熔融聚己内酰胺的水解裂解生产己内酰胺的方法

    公开(公告)号：US5495015A

    公开(公告)日：1996-02-27

    申请号：US355286

    申请日：1994-12-12

    申请人： Peter Bassler ,  Michael Kopietz

    发明人： Peter Bassler ,  Michael Kopietz

    IPC分类号： B03B9/06 ,  C07D201/12 ,  C08J11/14

    CPC分类号： C07D201/12

    摘要： Caprolactam is obtained from caprolactam-containing polymers in the presence of superheated water by bringing polymers which contain the repeating unit--[--N(H)--(CH.sub.2).sub.5 --C(O)--]--or mixtures consisting essentially of______________________________________from 40 to 99.9% by weight of a polymer containing the repeat- ing unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--]--,from 0.01 to 50% by weight of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes,from 0 to 10% by weight of organic and/or inorganic additives,from 0 to 40% by weight of non-polyamide-containing polymers andfrom 0 to 60% by weight of polyamides, with the exception of polycaprolactam and copolyamides prepared from caprolactam,______________________________________into contact with superheated water at from 280.degree. to 320.degree. C. and from 7.5 to 15 MPa and a weight ratio of water to polymer containing the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--]-- of from 5:1 to 13:1 and in a reaction time of less than 3 hours, with the proviso that the reaction mixture, consisting essentially of water and the polymer used or the mixture used, contains no gaseous phase under the conditions of the hydrolysis.

    摘要翻译： 在过热水存在下，通过使含有重复单元 - [ - N（H） - （CH 2）5 -C（O） - ] - 的聚合物或由基本上由40组成的混合物 至99.9重量％的含有重复单元的聚合物 - [-N（H） - （CH 2）5 -C（O） - ] - ， - 0.01-50重量％ - 由无机填料，有机和无机颜料和染料组成， - 0至10重量％的有机和/或无机添加剂， - 0至40重量％的非聚酰胺含聚合物和 - 0至60重量％的聚酰胺，除了由己内酰胺制备的聚己内酰胺和共聚酰胺与280℃至320℃和7.5至15MPa的过热水接触，并且水与 含有重复单元的聚合物 - [ - N（H） - （CH2）5-C（O） - ] - 为5：1至13：1，反应时间小于3小时，条件是 反应mi 主要由水组成，所使用的聚合物或所使用的混合物在水解条件下不含气相。

    Method for the production of polyamides in extruders
    9.
    发明授权
    Method for the production of polyamides in extruders 有权
    在挤出机中生产聚酰胺的方法

    公开(公告)号：US08765902B2

    公开(公告)日：2014-07-01

    申请号：US12665585

    申请日：2008-06-11

    申请人： Philippe Desbois ,  Michael Kopietz ,  Ralf Neuhaus ,  Hagen Stawitzki ,  Hans-Joachim Weis ,  Jochen Engelmann

    发明人： Philippe Desbois ,  Michael Kopietz ,  Ralf Neuhaus ,  Hagen Stawitzki ,  Hans-Joachim Weis ,  Jochen Engelmann

    IPC分类号： C08G69/28

    CPC分类号： C08G69/265 ,  B29C47/822 ,  C08G69/30

    摘要： In a process for preparing a polyamide based on dicarboxylic acids and diamines in an extruder, a solid mixture comprising a monomer mixture composed of 50 mol % of dicarboxylic acid mixture composed of from 60 to 88 % by weight of terephthalic acid and from 12 to 40% by weight of isophthalic acid, in which up to 20% by weight of the dicarboxylic acid mixture may also be replaced by other dicarboxylic acids, and 50 mol % of hexamethylenediamine which may be up to 20% by weight replaced by other C2-30-diamines, in a corotatory twin-screw extruder for a residence time of from 10 seconds to 30 minutes, is heated to a temperature in the range from 150 to 400° C. while removing steam and if appropriate diamines through venting orifices.

    摘要翻译： 在挤出机中制备基于二羧酸和二胺的聚酰胺的方法中，包含由50摩尔％的由对苯二甲酸的重量比为60-88％的二羧酸混合物和12-40的二羧酸混合物组成的单体混合物的固体混合物 重量％的间苯二甲酸，其中高达20重量％的二羧酸混合物也可以被其它二羧酸代替，并且50摩尔％的六亚甲基二胺可以被其他C2-30重量代替 - 二胺在旋转双螺杆挤出机中停留时间为10秒至30分钟，加热至150-400℃的温度，同时除去蒸汽，如果合适的话，将其加热至通过排气孔。