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37 条记录 (耗时 0.026 秒)

    Method for recovery of alkali metal or alkaline-earth metal terephthalate and of alkylene glycol from polyethylene terephthalates
    1.
    发明授权
    Method for recovery of alkali metal or alkaline-earth metal terephthalate and of alkylene glycol from polyethylene terephthalates 失效
    从聚对苯二甲酸乙二醇酯中回收碱金属或碱土金属对苯二甲酸盐和亚烷基二醇的方法

    公开(公告)号：US5545746A

    公开(公告)日：1996-08-13

    申请号：US367859

    申请日：1995-01-03

    申请人： Jacques Benzaria ,  Francois Dawans ,  Bruno Durif-Varambon ,  Jean-Bernard Gaillard

    发明人： Jacques Benzaria ,  Francois Dawans ,  Bruno Durif-Varambon ,  Jean-Bernard Gaillard

    IPC分类号： C07C29/09 ,  C07C51/09 ,  C07C51/41 ,  C07C67/48

    CPC分类号： C07C51/09 ,  C07C29/095 ,  C07C51/41

    摘要： An improved method for recovery of alkali metal or alkaline-earth metal terephthalate and of alkylene glycol, from polyalkylene terephthalate, in particular from polyethylene terephthalate (P.E.T.), alkylene glycol, in particular ethylene glycol produced in the form of vapor during the saponification reaction, initiated by the action of intensive kneading of polyalkylene terephthalate and the alkaline reagent at a temperature of 100.degree. to 200.degree. C. The alkylene glycol is recovered in gaseous form by entrainment by an inert gas or by extraction under low pressure. The alkaline terephthalate or alkaline-earth terephthalate is obtained in solid or powder form; it can easily be stored, transported and redissolved, in order to be purified and possibly transformed into terephthalic acid or ester.

    摘要翻译： 聚对苯二甲酸亚烷基酯，特别是聚对苯二甲酸乙二醇酯（PET），亚烷基二醇，尤其是在皂化反应过程中以蒸汽形式生产的乙二醇，回收碱金属或碱土金属对苯二甲酸酯和亚烷基二醇的改进方法， 由聚对苯二甲酸亚烷基酯和碱性试剂在100至200℃的温度下强烈捏合的作用引发。亚烷基二醇通过惰性气体的夹带或低压萃取而以气态回收。 碱性对苯二甲酸酯或碱土类对苯二甲酸酯以固体或粉末形式获得; 它可以容易地储存，运输和重新溶解，以便被纯化并可能转化成对苯二甲酸或酯。

    Molybdenum and tungsten compounds
    6.
    发明授权
    Molybdenum and tungsten compounds 失效
    钼和钨化合物

    公开(公告)号：US3980730A

    公开(公告)日：1976-09-14

    申请号：US539823

    申请日：1975-01-09

    申请人： Francois Dawans ,  Emmanuel Goldenberg

    发明人： Francois Dawans ,  Emmanuel Goldenberg

    IPC分类号： C07F11/00 ,  C08F4/00 ,  C08F36/04

    CPC分类号： C08F4/00 ,  C07F11/005 ,  C08F36/04

    摘要： Organic compounds of the formula:[(H.sub.3.sub.-n X.sub.n)C - CO.sub.2 M (CO).sub.m (R).sub.p (L).sub.q ].sub.rin which X is a halogen atom, at least one X being fluorine, M is molybdenum or tungsten, R is a hydride ion or a hydrocarbon group, L is a Lewis base and m, n, p, q and r are integers, are manufactured from fluoracetic esters and molybdenum or tungsten carbonyl compounds. They are useful as catalysts for polymerizing or co-polymerizing unsaturated compounds such as butadiene.

    摘要翻译： 下式的有机化合物：

    New molybdenum and tungsten compounds, their manufacture and their use as catalysts in the stereospecific polymerisation of unsaturated organic compounds
    7.
    发明授权
    New molybdenum and tungsten compounds, their manufacture and their use as catalysts in the stereospecific polymerisation of unsaturated organic compounds 失效
    新的钼和钨化合物，它们的制造及其作为催化剂在不饱和有机化合物的立体有择聚合中的应用

    公开(公告)号：US3931242A

    公开(公告)日：1976-01-06

    申请号：US429209

    申请日：1973-12-28

    申请人： Francois Dawans ,  Emmanuel Goldenberg

    发明人： Francois Dawans ,  Emmanuel Goldenberg

    IPC分类号： C07F11/00 ,  C08F4/00 ,  C08F36/04

    CPC分类号： C08F4/00 ,  C07F11/00 ,  C08F36/04

    摘要： Organic compounds of the formula:[(H.sub.3.sub.-n X.sub.n)C -- CO.sub.2 M (CO).sub.m (R).sub.p (L).sub.q ].sub.rIn which X is a halogen atom, at least one X being fluorine, M is molybdenum or tungsten, R is a hydride ion or a hydrocarbon group, L is a Lewis base and m, n, p, q and r are integers, are manufactured from fluoracetic esters and molybdenum or tungsten carbonyl compounds, They are useful as catalysts for polymerizing or co-polymerising unsaturated compounds such as butadiene.

    摘要翻译： 下式的有机化合物：[（H3-nXn）C-CO2M（CO）m（R）p（L）q] r IN其中X是卤素原子，至少一个X是氟，M是钼或钨， R是氢离子或烃基，L是路易斯碱，m，n，p，q和r是整数，由氟乙酸酯和钼或钨羰基化合物制成，它们可用作聚合或共聚合的催化剂， 聚合不饱和化合物如丁二烯。

    Bituminous compositions containing residues of hydrolyzed or alcoholized polymers
    9.
    发明授权
    Bituminous compositions containing residues of hydrolyzed or alcoholized polymers 失效
    含有水解或醇化聚合物残留物的白色组合物

    公开(公告)号：US5104932A

    公开(公告)日：1992-04-14

    申请号：US658626

    申请日：1991-02-21

    申请人： Francois Dawans

    发明人： Francois Dawans

    IPC分类号： C08G18/82 ,  C08G59/00 ,  C08J11/10 ,  C08J11/22 ,  C08L63/00 ,  C08L67/00 ,  C08L75/00 ,  C08L75/04 ,  C08L95/00 ,  C10C3/02 ,  E01C7/26

    CPC分类号： C10C3/026 ,  C08L95/00

    摘要： The invention relates to bituminous compositions containing residues of polymers and in particular sterile car waste, which have previously undergone a hydrolysis and/or alcoholysis treatment prior to their incorporation into the bitumen or asphalt. The treatment is carried out in such a way as to hydrolyze and/or alcoholyze at least 5% by weight of the polyesters and/or polyurethanes initially contained in the polymer residues.During the addition of the pretreated mixture of polymers to the bitumen or asphalt, it is preferable to add a catalyst and/or a reagent assisting the in situ condensation of the acids, alcohols, amines or isocyanates formed during the pretreatment and which react with one another or with certain constituents of the bitumen or asphalt.The process permits a better incorporation of the polymer residues containing a fraction of polyurethane, polyester and/or polyepoxide resins and consequently makes it possible to obtain improved bituminous compositions for use in roads or industry.

    摘要翻译： 本发明涉及含有聚合物残留物，特别是无菌汽车废物的沥青组合物，其在掺入沥青或沥青中之前已经进行了水解和/或醇解处理。 以如下方式进行处理：水解和/或醇解至少5重量％的聚合物残余物中最初包含的聚酯和/或聚氨酯。 在将预处理的聚合物混合物加入到沥青或沥青中时，优选加入催化剂和/或辅助原酸缩合在预处理期间形成的酸，醇，胺或异氰酸酯的试剂，并与其反应 沥青或沥青的另一种或某些成分。 该方法允许更好地包含含有一部分聚氨酯，聚酯和/或聚环氧化物树脂的聚合物残余物，因此可以获得用于道路或工业中的改进的沥青组合物。