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66 条记录 (耗时 0.014 秒)

    Process for preparing alkanediols
    41.
    发明授权
    Process for preparing alkanediols 失效
    制备烷二醇的方法

    公开(公告)号：US5723389A

    公开(公告)日：1998-03-03

    申请号：US729932

    申请日：1996-10-15

    申请人： Lynn Henry Slaugh ,  Paul Richard Weider ,  Joseph Broun Powell ,  Juan Pedro Arhancet

    发明人： Lynn Henry Slaugh ,  Paul Richard Weider ,  Joseph Broun Powell ,  Juan Pedro Arhancet

    IPC分类号： C07C29/141 ,  C07C45/58 ,  C07C47/02 ,  C07C27/00 ,  C07C27/04 ,  C07C45/00

    CPC分类号： C07C29/141 ,  C07C45/58

    摘要： An alkanediol such as 1,3-propanediol is prepared in a process which involves reacting an alkylene oxide with carbon monoxide and hydrogen in an essentially non-water-miscible solvent in the presence of a non-phosphine-ligated cobalt or rhodium catalyst and a cobalt or rhodium porphyrin promoter to produce an intermediate product mixture containing a hydroxyalkanal in an amount less than 15 wt %; extracting the hydroxyalkanal from the intermediate product mixture into an aqueous liquid at a temperature less than about 100.degree. C. and separating the aqueous phase containing hydroxyalkanal from the organic phase containing cobalt catalyst; hydrogenating the hydroxyalkanal in the aqueous phase to an alkanediol; and recovering the alkanediol. The process enables the production of an alkanediol such as 1,3-propanediol in high yields and selectivity without the use of a phosphine ligand with the cobalt or rhodium catalyst.

    摘要翻译： 在一种方法中制备链烷二醇，例如在非磷化氢连接的钴或铑催化剂存在下使环氧烷与一氧化碳和氢气在基本上不与水相混溶的溶剂中反应， 钴或铑卟啉促进剂，以产生含有小于15重量％的羟基卡那定的中间产物混合物; 在低于约100℃的温度下将羟基卡那酸从中间产物混合物中提取成含水液体，并将含羟基卡那酸的水相与含钴催化剂的有机相分离; 将水相中的羟基卡那酸氢化成链烷二醇; 并回收链烷二醇。 该方法能够以高产率和选择性生产链烷二醇如1,3-丙二醇，而不需要使用与钴或铑催化剂的膦配体。

    Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process
    44.
    发明授权
    Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process 失效
    N-（氨基烷基）吡咯烷酮作为多异氰酸酯多元醇加工过程的催化剂的应用

    公开(公告)号：US5134217A

    公开(公告)日：1992-07-28

    申请号：US817240

    申请日：1992-01-06

    申请人： Richard Weider ,  Uwe Scholz

    发明人： Richard Weider ,  Uwe Scholz

    IPC分类号： C07D295/12 ,  C08G18/18 ,  C08G18/20 ,  C08G18/42 ,  C08G18/48 ,  C08G18/65 ,  C08G101/00

    CPC分类号： C08G18/2018 ,  C08G2101/0008 ,  C08G2101/0025 ,  C08G2101/0083 ,  C08G2290/00

    摘要： The present invention relates to a process for preparing polyisocyanate polyaddition products by reacting(a) polyisocyanates with(b) relatively high molecular weight compounds containing at least two isocyanate-reactive hydrogen atoms and(c) chain-extending agents, in the presence of(d) N-(aminoalkyl)pyrrolidine catalysts corresponding to formula (I) ##STR1## in which R is a C.sub.2-12 alkylene group (optionally containing O or N atoms but not isocyanate-reactive groups) andR' is hydrogen or a C.sub.1-4 alkyl group,(e) optionally, other known catalysts, and(f) other known additives.

    摘要翻译： 本发明涉及通过使（a）多异氰酸酯与（b）含有至少两个异氰酸酯反应性氢原子的相对高分子量化合物和（c）扩链剂反应的（a）多异氰酸酯加成产物 d）对应于式（I）的N-（氨基烷基）吡咯烷催化剂其中R是C 2-12亚烷基（任选地含有O或N原子但不含异氰酸酯反应性基团），R'是氢 或C 1-4烷基，（e）任选的其它已知的催化剂，和（f）其它已知的添加剂。

    Halogen-Free Flame-Retardant Thermoplastic Moulding Compositions Based on Polyamide With Increased Glow-Wire Resistance
    47.
    发明申请
    Halogen-Free Flame-Retardant Thermoplastic Moulding Compositions Based on Polyamide With Increased Glow-Wire Resistance 有权
    基于聚酰胺的无卤阻燃热塑性成型组合物增加了灼热丝电阻

    公开(公告)号：US20080161490A1

    公开(公告)日：2008-07-03

    申请号：US11662457

    申请日：2005-08-31

    申请人： Jochen Endtner ,  Detlev Joachim ,  Richard Weider

    发明人： Jochen Endtner ,  Detlev Joachim ,  Richard Weider

    IPC分类号： C08L77/00

    CPC分类号： C08K5/34928 ,  C08K5/5313 ,  C08L77/00

    摘要： The present invention relates to thermoplastic moulding compositions comprising unbranched, thermoplastic polyamide, a phosphinic or diphosphinic salt, a nitrogen-containing flame retardant combination and also at least one oxygen-containing, nitrogen-containing or sulphur-containing metal compound and also to the production and the use of the inventive moulding compositions for production of fibres, of foils and of mouldings of any type.

    摘要翻译： 本发明涉及包含无支链，热塑性聚酰胺，次膦酸盐或二次膦酸盐，含氮阻燃剂组合物以及至少一种含氧，含氮或含硫金属化合物的热塑性模塑组合物，并且还涉及生产 以及本发明的模塑组合物用于生产纤维，箔和任何类型的模制品的用途。

    PROCESS FOR PREPARING 1,3-PROPANEDIOL
    48.
    发明申请
    PROCESS FOR PREPARING 1,3-PROPANEDIOL 失效
    制备1,3-丙二醇的方法

    公开(公告)号：US20080154071A1

    公开(公告)日：2008-06-26

    申请号：US11950294

    申请日：2007-12-04

    申请人： Douglas Lee Husen ,  Glenn Charles Komplin ,  Joseph Broun Powell ,  Paul Richard Weider

    发明人： Douglas Lee Husen ,  Glenn Charles Komplin ,  Joseph Broun Powell ,  Paul Richard Weider

    IPC分类号： C07C29/141

    CPC分类号： C07C29/141 ,  C07C29/80 ,  C07C45/58 ,  C07C45/64 ,  C07C45/80 ,  C07C47/19 ,  C07C31/205

    摘要： The invention provides a process for preparing 1,3-alkanediols, such as 1,3-propanediol (PDO), from 3-hydroxyaldehydes, such as 3-hydroxypropanal (HPA), comprising providing a mixture of 3-hydroxyaldehydes in an organic solvent; extracting into an aqueous liquid a major portion of the 3-hydroxyaldehydes to provide an aqueous phase comprising 3-hydroxyaldehydes in greater concentration than the concentration of 3-hydroxyaldehydes in the 3-hydroxyaldehyde mixture, and an organic phase; separating the aqueous phase from the organic phase; contacting the aqueous phase with hydrogen in the presence of a hydrogenation catalyst to provide a hydrogenation product mixture comprising 1,3-alkanediols and water; separating water from the 1,3-alkanediols using a multi-effect evaporation scheme; recycling water containing about 50 wt % or less 1,3-propanediol based upon the total amount of 1,3-propanediol and water to the extraction stage; and recovering 1,3-alkanediols.

    摘要翻译： 本发明提供了从3-羟基醛如3-羟基丙醛（HPA）制备1,3-烷二醇如1,3-丙二醇（PDO）的方法，其包括在有机溶剂中提供3-羟基醛的混合物 ; 将大部分3-羟基醛萃取到含水液体中以提供包含3-羟基醛的水相，其浓度高于3-羟基醛混合物中3-羟基醛的浓度和有机相; 将水相与有机相分离; 在氢化催化剂存在下使水相与氢气接触，以提供包含1,3-烷二醇和水的氢化产物混合物; 使用多效蒸发方案从1,3-烷二醇分离水; 基于1,3-丙二醇和水的总量将含有约50重量％或更少的1,3-丙二醇的水循环到萃取阶段; 并回收1,3-链烷二醇。

    Solid acid catalyzed reactive stripping of impurities formed during the production of 1, 3-propanediol
    49.
    发明授权
    Solid acid catalyzed reactive stripping of impurities formed during the production of 1, 3-propanediol 失效
    在制备1,3-丙二醇期间形成的固体酸催化反应性汽提

    公开(公告)号：US06972346B2

    公开(公告)日：2005-12-06

    申请号：US10676796

    申请日：2003-10-01

    申请人： Joseph Broun Powell ,  Paul Richard Weider ,  Glenn Charles Komplin

    发明人： Joseph Broun Powell ,  Paul Richard Weider ,  Glenn Charles Komplin

    IPC分类号： C07C29/141 ,  C07C29/80 ,  C07C29/88 ,  C07C31/18 ,  C07C27/26 ,  C07C27/28 ,  C07C29/74 ,  C07C31/20

    CPC分类号： C07C29/141 ,  C07C29/80 ,  C07C29/88 ,  C07C31/205

    摘要： A process for producing 1,3-propanediol comprising the steps of: a) forming an aqueous solution of 3-hydroxypropanal, b) hydrogenating the 3-hydroxypropanal to form a first crude 1,3-propanediol mixture comprising 1,3-propanediol, water, and MW 132 cyclic acetal, c) distilling the first crude 1,3-propanediol mixture to remove water and low boiling impurities and form a second crude 1,3-propanediol mixture, d) contacting the second crude 1,3-propanediol mixture with a solid acid purifier at a temperature of from about 50 to about 250° C. to convert the MW 132 cyclic acetal to more volatile cyclic acetals, and e) separating the more volatile cyclic acetals from the 1,3-propanediol by distillation or gas stripping.

    摘要翻译： 一种生产1,3-丙二醇的方法，包括以下步骤：a）形成3-羟基丙醛水溶液，b）氢化3-羟基丙醛以形成第一种1,3-丙二醇混合物，其包括1,3-丙二醇， 水和MW 132环缩醛，c）蒸馏第一粗1,3-丙二醇混合物以除去水和低沸点杂质，并形成第二粗1,3-丙二醇混合物，d）使第二粗1,3-丙二醇 与固体酸性净化器的混合物在约50至约250℃的温度下将MW 132环状缩醛转化为更易挥发的环状缩醛，以及e）通过蒸馏从1,3-丙二醇中分离更易挥发的环状缩醛 或气体剥离。

    Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process
    50.
    再颁专利
    Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process 有权
    使用N-（氨基烷基）吡咯烷作为多异氰酸酯加聚方法的催化剂

    公开(公告)号：USRE38415E1

    公开(公告)日：2004-02-03

    申请号：US10267119

    申请日：2002-10-07

    申请人： Richard Weider ,  Uwe Scholz

    发明人： Richard Weider ,  Uwe Scholz

    IPC分类号： C08G1808

    CPC分类号： C08G18/2018 ,  C08G2101/0008 ,  C08G2101/0083 ,  C08G2290/00

    摘要： The present invention relates to a process for preparing polyisocyanate polyaddition products by reacting (a) polyisocyanates with (b) relatively high molecular weight compounds containing at least two isocyanate-reactive hydrogen atoms and (c) chain-extending agents, in the presence of (d) N-(aminoalkyl)pyrrolidine catalysts corresponding to formula (I) in which R is a C2-12 alkylene group (optionally containing O or N atoms but not isocyanate-reactive groups) and R′ is hydrogen or a C1-4 alkyl group, (e) optionally, other known catalysts, and (f) other known additives.