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20 条记录 (耗时 0.016 秒)

    Synthesis of diaza crown ethers
    1.
    发明授权
    Synthesis of diaza crown ethers 失效
    二氮冠醚的合成

    公开(公告)号：US5247078A

    公开(公告)日：1993-09-21

    申请号：US694706

    申请日：1991-05-02

    申请人： Donald H. Champion ,  George P. Speranza ,  Terry L. Renken

    发明人： Donald H. Champion ,  George P. Speranza ,  Terry L. Renken

    IPC分类号： C07D273/00 ,  C07D273/08

    CPC分类号： C07D273/00

    摘要： Poly(ethyleneoxy)amines, such as those having the structure:H.sub.2 N--(CH.sub.2).sub.a --(OCH.sub.2 CH.sub.2).sub.b --NH--(CH.sub.2 CH.sub.2 O).sub.c --(CH.sub.2).sub.d --Rwhere a and d are independently 2 to 3; b and c are independently 1 to 4 and R is --OH or --NH.sub.2, may be reacted over a transition metal catalyst such as one containing nickel to produce diaza crown ethers, such as, for example 4,13-diaza-18-crown-6. If the poly(ethyleneoxy)amine is a diamine having a hydroxyl group of the above formula, the reaction may produce the corresponding triamine in the presence of ammonia. These triamines also readily form diaza crown ethers at near complete conversions simply from nickel, platinum, and palladium metal catalysts alone or with other transition metals such as copper and/or chromium. The process avoids tedious, multiple step procedures and the high dilutions that accompany prior diaza crown ether preparations.

    摘要翻译： 聚（乙烯氧基）胺，例如具有以下结构的那些：H 2 N - （CH 2）a - （OCH 2 CH 2）b -NH-（CH 2 CH 2 O）c - （CH 2）d -R，其中a和d独立地为2至3; b和c独立地为1至4并且R为-OH或-NH 2，可以在过渡金属催化剂如含镍的反应物上反应以制备二氮杂冠醚，例如4,13-二氮杂-18-冠 -6。 如果聚（乙烯氧基）胺是具有上式的羟基的二胺，则反应可在氨的存在下产生相应的三胺。 这些三胺也可以简单地从镍，铂和钯金属催化剂单独或与其它过渡金属如铜和/或铬接近完全转化形成二氮冠醚。 该过程避免了繁琐的多步骤程序和伴随以前的碳酸乙醚制备的高稀释度。

    Heterogeneous catalyst for alkoxylation of alcohols
    3.
    发明授权
    Heterogeneous catalyst for alkoxylation of alcohols 失效
    用于醇的烷氧基化的非均相催化剂

    公开(公告)号：US5110991A

    公开(公告)日：1992-05-05

    申请号：US677934

    申请日：1991-04-01

    申请人： Donald H. Champion ,  George P. Speranza

    发明人： Donald H. Champion ,  George P. Speranza

    IPC分类号： C07C41/03

    CPC分类号： C07C41/03

    摘要： Disclosed is a novel method for alkoxylation alcohols by reacting the alcohols with epoxides over a heterogeneous catalyst comprising a fluoride of an element of Group I of the Periodic Table on an oxide of Group IIA or Group IIIA of the Periodic Table.

    摘要翻译： 公开了一种通过醇与环氧化物反应的非均相催化剂的方法，所述多相催化剂包含元素周期表第I族元素的元素周期表IIA族或ⅢA族氧化物的氟化物。

    Preparation of foams using polyfunctional organic acids
    4.
    发明授权
    Preparation of foams using polyfunctional organic acids 失效
    使用多官能有机酸制备泡沫

    公开(公告)号：US5093382A

    公开(公告)日：1992-03-03

    申请号：US741917

    申请日：1991-08-08

    申请人： George P. Speranza ,  Donald H. Champion

    发明人： George P. Speranza ,  Donald H. Champion

    IPC分类号： C08G18/32 ,  C08G18/30 ,  C08G18/34 ,  C08G18/48 ,  C08G18/50 ,  C08G18/65 ,  C08G101/00 ,  C08J9/02

    CPC分类号： C08G18/503 ,  C08G18/341 ,  C08G18/4887 ,  C08G18/5039 ,  C08G2101/00

    摘要： Foamed reaction products of organic polyisocyanates containing an average of at least 2 isocyanate groups per molecule with equivalent weights of carbon dioxide-generating, carboxyl group terminated addition reaction products of a polyoxyalkylene polyamine or polyoxyalkylene polyol reactant with a polycarboxylic acid reactant,the polyoxyalkylamine and polyoxyalkyl polyol reactant having an average molecular weight of about 200 to about 5,000 and being selected from the group consisting of polyoxypropylene diamines, polyoxypropylene/oxyethylene diamines, poly(oxytetramethylene) diamines and polyoxypropylene triamines, polyoxypropylene diols, polyoxypropylene/oxyethylene diols, poly(oxytetramethylene) diols and polyoxypropylene triols,the polycarboxylic acid reactant containing 2 to about 45 carbon atoms and being selected from the group consisting of aromatic and aliphatic dicarboxylic acids and anhydrides thereof.

    Polyether amide from mixture of polyether diamine
    5.
    发明授权
    Polyether amide from mixture of polyether diamine 失效
    聚氨酯混合物由聚醚二胺混合制成

    公开(公告)号：US5053484A

    公开(公告)日：1991-10-01

    申请号：US507261

    申请日：1990-04-10

    申请人： George P. Speranza ,  Wei-Yang Su ,  Donald H. Champion

    发明人： George P. Speranza ,  Wei-Yang Su ,  Donald H. Champion

    IPC分类号： C08G69/28 ,  C08G69/40

    CPC分类号： C08G69/40

    摘要： Novel polyether amides are produced by reacting a polyethylene glycol diamine and a first dicarboxylic acid or an ester thereof, with a polyoxyalkylene diamine of molecular weight of at least 500 and a second dicarboxylic acid or an ester thereof, where the polyethylene glycol diamine has the formula NH.sub.2 --(CH.sub.2 CH.sub.2 O).sub.x --CH.sub.2 CH.sub.2 --NH.sub.2, where x ranges from 2 to 6, and where the first and second dicarboxylic acid may be the same or different. Suitable dicarboxylic acids include adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, terephthalic acid, isophthalic acid, t-butyl isophthalic acid, and mixtures thereof. Suitable polyethylene glycol diamines include triethylene glycol diamine (JEFFAMINE.RTM. EDR--148 Amine) and tetraethylene glycol diamine (JEFFAMINE.RTM. EDR--192 Amine), among others. Higher molecular weight polyether diamines are used in addition to these polyethylene glycol diamines to give polyether amides useful in making polymers, including fibers, having unusually good water absorbancy properties. The polyether amides are made by mixing equimolar salts of diamine/diacid pairs and then heating the mixture to condense to the polymer.

    Purification of polyamines derived from polyhydroxyl compounds
    6.
    发明授权
    Purification of polyamines derived from polyhydroxyl compounds 失效
    衍生自多羟基化合物的多胺的纯化

    公开(公告)号：US5019653A

    公开(公告)日：1991-05-28

    申请号：US522942

    申请日：1990-05-14

    申请人： George P. Speranza ,  Donald H. Champion

    发明人： George P. Speranza ,  Donald H. Champion

    IPC分类号： C07C213/10

    CPC分类号： C07C213/10

    摘要： Disclosed is a method for purification of polyamines which comprises contacting said polyamines with a treating agent selected from the group consisting of oxides, hydroxides or alkoxides of elements from the group consisting of silicon or Group IIA, IIIA, IIB, IIIB, IVB or VB at a temperature of about 150.degree. C. to 250.degree. C. and a pressure of subatomspheric to 10 atmospheres for a period of time sufficient to lower the hydroxyl impurity level of said amines.

    摘要翻译： 公开了一种多胺的纯化方法，其包括使所述多胺与选自硅或IIA，IIIA，IIB，IIIB，IVB或VB族的元素的氧化物，氢氧化物或醇盐的处理剂接触。 约150℃至250℃的温度和亚原子体至10个大气压的压力持续足以降低所述胺的羟基杂质水平的时间。