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    Process for the preparation of polycarbonate diols with a high molecular weight
    1.
    发明公开
    Process for the preparation of polycarbonate diols with a high molecular weight 有权
    Verfahren zur Herstellung von Polycarbonatdiolen mit hohem Molekulargewicht

    公开(公告)号：EP1134248A1

    公开(公告)日：2001-09-19

    申请号：EP01103237.2

    申请日：2001-02-12

    申请人： Enichem S.p.A.

    发明人： Mizia, Franco ,  Rivetti, Franco

    IPC分类号： C08G64/30

    CPC分类号： C08G64/305

    摘要： A process is described for the preparation of polycarbonate diols (PCD) with a high molecular weight comprising two subsequent reaction steps, wherein in the first step PCD with a molecular weight ranging from 500 to 2000, is synthesized and in the second step the molecular weight of the PCD is increased to the desired value.
    Polycarbonate diols are usefully applied in the field of thermoelastomeric ,polyurethane manufactured products, paints, adhesives and synthetic leather.

    摘要翻译： 描述了制备具有高分子量的聚碳酸酯二醇（PCD）的方法，其包括两个随后的反应步骤，其中在第一步中合成分子量为500至2000的PCD，在第二步中分子量 的PCD增加到期望的值。 聚碳酸酯二醇可用于热塑性聚氨酯制造产品，油漆，粘合剂和合成皮革领域。

    Procedure for alkylation of imides
    3.
    发明公开
    Procedure for alkylation of imides 失效
    Verfahren zur Alkylierung von Imiden

    公开(公告)号：EP0785189A1

    公开(公告)日：1997-07-23

    申请号：EP96120574.7

    申请日：1996-12-20

    申请人： ENICHEM S.p.A.

    发明人： Notari, Marcello ,  Mizia, Franco ,  Rivetti, Franco

    IPC分类号： C07D209/48 ,  C07D207/404

    CPC分类号： C07D207/408 ,  C07D209/48 ,  C07D471/06

    摘要： A procedure is described for the alkylation of imides that is characterised by the fact that the imides are reacted with a dialkyl carbonate, in the liquid state, at a temperature of between 100°C and 250°C and at a pressure of between 0 and 60 atmospheres in the presence of a basic catalyst.
    The dialkyl carbonate reagents are not very toxic and are thermally stable and their use as alkylation agents makes it possible to produce waste products with a negligible saline content.

    摘要翻译： 描述了用于酰亚胺烷基化的方法，其特征在于将酰亚胺与碳酸二烷基酯在液态下在100-250℃的温度和0至 60个大气压的碱性催化剂存在下。 碳酸二烷基酯试剂不是非常有毒的并且是热稳定的，并且它们作为烷基化剂的使用使得可以生产具有可忽略的盐水含量的废物。

    Use of organic carbonates as solvents for the washing of metal surfaces
    5.
    发明公开
    Use of organic carbonates as solvents for the washing of metal surfaces 有权
    Verwendung von organischen Karbonaten alsLösungsmittelzur Reinigung vonMetalloberflächen

    公开(公告)号：EP1083247A2

    公开(公告)日：2001-03-14

    申请号：EP00203063.3

    申请日：2000-09-04

    申请人： Enichem S.p.A.

    发明人： Mizia, Franco ,  Rivetti, Franco

    IPC分类号： C23G5/032

    CPC分类号： C23G5/032 ,  C11D3/2093 ,  C11D7/266 ,  C11D11/0029

    摘要： The invention relates to the use of organic carbonates having formula (I)
    wherein:

    n = 1-4
    R and R' are two linear or branched alkyl radicals which contain a number of carbon atoms whose sum is equal to at least 5 and which can be the same or different, as solvents for the washing of metal surfaces.

    摘要翻译： 本发明涉及具有式（I）的有机碳酸酯的用途，其中：n = 1-4R，R'是两个直链或支链烷基，其含有多个碳原子，其总数等于至少5 并且可以与用于洗涤金属表面的溶剂相同或不同。

    Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone
    6.
    发明公开
    Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone 失效
    Verfahren zur Herstellung von 2-羟基-4-烯丙氧基 - 二苯甲酮

    公开(公告)号：EP0846672A1

    公开(公告)日：1998-06-10

    申请号：EP97119975.7

    申请日：1997-11-14

    申请人： ENICHEM S.p.A.

    发明人： Notari, Marcello ,  Mizia, Franco ,  Rivetti, Franco

    IPC分类号： C07C45/71 ,  C07C49/84

    CPC分类号： C07C45/71 ,  C07C49/84

    摘要： A process is described for the synthesis of 2-hydroxy-4-alkyloxy benzophenone by the selective alkylation of 2,4-dihydroxy benzophenone with a dialkyl carbonate, in liquid phase, in the presence of suitable catalysts, at a temperature ranging between 120 and 220°C and at a total pressure ranging from 2 to 60 ate.

    摘要翻译： 描述了通过在合适的催化剂存在下，在120℃和120℃的温度范围内，在液相中选择性烷基化2,4-二羟基二苯甲酮与碳酸二烷基酯合成2-羟基-4-烷氧基二苯甲酮的方法 220℃，总压力范围为2-60℃。