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166 条记录 (耗时 0.033 秒)

    METHOD FOR PRODUCING LACTONES FROM DIOLS
    83.
    发明申请
    METHOD FOR PRODUCING LACTONES FROM DIOLS 审中-公开
    从二醇生产乳酸的方法

    公开(公告)号：US20100305339A1

    公开(公告)日：2010-12-02

    申请号：US12446068

    申请日：2007-10-12

    申请人： Rolf Pinkos ,  Daniel Breuninger

    发明人： Rolf Pinkos ,  Daniel Breuninger

    IPC分类号： C07D309/12 ,  C07D313/04

    CPC分类号： C07D315/00

    摘要： The present invention provides a process for preparing lactones from optionally substituted, saturated aliphatic diols having from five to 20 carbon atoms between the two ring-closing hydroxyl groups by catalytic dehydrogenation and cyclization in the liquid phase over at least one catalyst.

    摘要翻译： 本发明提供了通过催化脱氢在两个闭闭羟基之间具有5至20个碳原子的任选取代的饱和脂族二醇制备内酯的方法，并通过至少一种催化剂在液相中环化。

    PROCESS FOR THE PREPARATION OF AN N-ALKYL LACTAM WITH IMPROVED COLOUR QUALITY
    85.
    发明申请
    PROCESS FOR THE PREPARATION OF AN N-ALKYL LACTAM WITH IMPROVED COLOUR QUALITY 审中-公开
    制备具有改善颜色质量的N-ALKYL LACTAM的方法

    公开(公告)号：US20100286411A1

    公开(公告)日：2010-11-11

    申请号：US12842228

    申请日：2010-07-23

    申请人： Tobias Wabnitz ,  Rolf Pinkos ,  Karl Ott

    发明人： Tobias Wabnitz ,  Rolf Pinkos ,  Karl Ott

    IPC分类号： C07D207/12

    CPC分类号： C07D201/18 ,  C07D207/267 ,  C07D211/76 ,  C07D223/10

    摘要： A process for preparing an N-alkyllactam with improved color quality, wherein from 0.01 to 10% by weight of a C1-10-alcohol or a compound which releases from 0.01 to 10% by weight of a C1-10-alcohol is added to the N-alkyllactam.A mixture comprising at least 99.0% by weight of an N-alkyllactam and in the range from 100 to 5000 ppm by weight of a C1-10-alcohol or of an acetal, aminal or of an Orthoester which releases in the range from 100 to 5000 ppm by weight of a C1-10-alcohol.

    摘要翻译： 一种制备具有改进的颜色质量的N-烷基内酰胺的方法，其中将0.01至10重量％的C 1-10醇或从0.01至10重量％的C 1-10醇释放的化合物加入到 N-烷基内酰胺。 一种混合物，其包含至少99.0重量％的N-烷基内酰胺，并且在100至5000重量ppm的C 1-10醇或缩醛，缩醛或直角酯中，其释放范围为100至 5000重量ppm的C 1-10醇。

    METHOD FOR CHANGING THE PREDEFINED MEAN MOLECULAR WEIGHT MN DURING THE CONTINUOUS PRODUCTION OF POLYTETRAHYDROFURANES OR THE COPOLYMERS
    86.
    发明申请
    METHOD FOR CHANGING THE PREDEFINED MEAN MOLECULAR WEIGHT MN DURING THE CONTINUOUS PRODUCTION OF POLYTETRAHYDROFURANES OR THE COPOLYMERS 有权
    在连续生产聚四氢呋喃或共聚物期间改变预测的均分子量MN的方法

    公开(公告)号：US20100240864A1

    公开(公告)日：2010-09-23

    申请号：US12295152

    申请日：2007-12-10

    申请人： Rolf Pinkos ,  Jochen Steiner ,  Stefan Käshammer ,  Tobias Wabnitz

    发明人： Rolf Pinkos ,  Jochen Steiner ,  Stefan Käshammer ,  Tobias Wabnitz

    IPC分类号： C08G65/20

    CPC分类号： C08G65/20 ,  C08G65/2657 ,  C08G65/266 ,  C08G65/2696

    摘要： The present invention provides a process for changing the given mean molecular weight Mn in the continuous preparation of polytetrahydrofuran or tetrahydrofuran copolymers, the mono- or diesters of polytetrahydrofuran or of tetrahydrofuran copolymers by polymerizing tetrahydrofuran in the presence of a telogen and/or of a comonomer over an acidic catalyst, wherein a) the molar ratio of telogen to tetrahydrofuran or to tetrahydrofuran and comonomer is changed, b) then the mean molecular weight of at least one sample is determined, c) until the mean molecular weight thus determined differs from the molecular weight to be achieved by the change, the already formed polytetrahydrofuran or the tetrahydrofuran copolymers, the mono- or diesters of polytetrahydrofuran or tetrahydrofuran copolymer is at least partly depolymerized over an acidic catalyst and d) the tetrahydrofuran recovered by depolymerization is recycled at least partly into the polymerization.

    摘要翻译： 本发明提供了在四氢呋喃或四氢呋喃共聚物的连续制备中改变给定的平均分子量Mn的方法，所述共聚单体是四氢呋喃或四氢呋喃共聚物的单酯或二酯，其在四环缩聚物和/或共聚单体存在下聚合四氢呋喃 在酸性催化剂上，其中a）季戊四醇与四氢呋喃或四氢呋喃和共聚单体的摩尔比改变，b）确定至少一种样品的平均分子量，c）直到如此确定的平均分子量与 通过改变实现的分子量，已经形成的聚四氢呋喃或四氢呋喃共聚物，聚四氢呋喃或四氢呋喃共聚物的单酯或二酯在酸性催化剂上至少部分解聚，以及d）通过解聚回收的四氢呋喃至少部分地再循环 进入聚合。

    PROCESS FOR PREPARING 1,4-BUTANEDIOL
    88.
    发明申请
    PROCESS FOR PREPARING 1,4-BUTANEDIOL 有权
    制备1,4-丁二醇的方法

    公开(公告)号：US20100016643A1

    公开(公告)日：2010-01-21

    申请号：US12527139

    申请日：2007-03-14

    申请人： Rolf Pinkos ,  Rudolf Erich Lorenz ,  York Alexander Beste

    发明人： Rolf Pinkos ,  Rudolf Erich Lorenz ,  York Alexander Beste

    IPC分类号： C07C29/14

    CPC分类号： C07C29/42 ,  C07C29/172 ,  Y02P20/125 ,  C07C33/046 ,  C07C31/207

    摘要： The present invention provides an integrated process for continuously preparing 1,4-butanediol, which comprises the following stages:(I) reacting formaldehyde with acetylene in the presence of a copper catalyst at a pH of from 5 to 8 and a molar ratio of formaldehyde to acetylene of at most 2:1, (II) intermediately buffering the resulting butynediol-containing aqueous mixture for from 0.1 to 100 h, (III) hydrogenating the mixture obtained after the intermediate buffering and (IV) distilling the hydrogenation product obtained in stage III to obtain 1,4-butanediol.

    摘要翻译： 本发明提供连续制备1,4-丁二醇的一体化方法，其包括以下步骤：（I）在铜催化剂存在下，在5至8的pH下与甲醛与乙炔反应，并且甲醛的摩尔比 至最多2:1的乙炔，（II）将所得的含丁炔二醇的含水混合物中间缓冲0.1至100小时，（III）将中间缓冲后获得的混合物氢化，并且（IV）蒸馏阶段获得的氢化产物 III得到1,4-丁二醇。