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    Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone
    1.
    发明授权
    Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone 失效
    合成2-羟基-4-烷氧基二苯甲酮的方法

    公开(公告)号：US5849955A

    公开(公告)日：1998-12-15

    申请号：US974924

    申请日：1997-11-20

    申请人： Marcello Notari ,  Franco Mizia ,  Franco Rivetti

    发明人： Marcello Notari ,  Franco Mizia ,  Franco Rivetti

    IPC分类号： C07C45/71 ,  C07C47/61

    CPC分类号： C07C45/71

    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.degree. and 220.degree. C. and at a total pressure ranging from 2 to 60 ate.

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

    Procedure for alkylation of imides
    2.
    发明授权
    Procedure for alkylation of imides 失效
    酰亚胺烷基化方法

    公开(公告)号：US5780645A

    公开(公告)日：1998-07-14

    申请号：US775800

    申请日：1996-12-31

    申请人： Marcello Notari ,  Franco Mizia ,  Franco Rivetti

    发明人： Marcello Notari ,  Franco Mizia ,  Franco Rivetti

    IPC分类号： C07D205/10 ,  C07B61/00 ,  C07D207/40 ,  C07D207/404 ,  C07D209/48 ,  C07D471/06 ,  C07D487/06

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

    摘要： A process for the alkylation of imides wherein the imides are reacted with a dialkyl carbonate, in the liquid state, at a temperature of between 100.degree. C. and 250.degree. 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： 用于烷基化酰亚胺的方法，其中所述酰亚胺与碳酸二烷基酯在液态下在100℃至250℃的温度和0至60个大气压的压力下在存在下进行反应 一个基本的催化剂。 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 dialkyl carbonates as solvents for expanded polystyrene
    4.
    发明授权
    Use of dialkyl carbonates as solvents for expanded polystyrene 有权
    使用碳酸二烷基酯作为发泡聚苯乙烯的溶剂

    公开(公告)号：US07745503B2

    公开(公告)日：2010-06-29

    申请号：US10566401

    申请日：2004-08-31

    申请人： Marcello Notari ,  Franco Rivetti

    发明人： Marcello Notari ,  Franco Rivetti

    IPC分类号： C08J11/04

    CPC分类号： C08J3/095 ,  C08J11/08 ,  C08J2325/06 ,  Y02W30/701

    摘要： The invention relates to the use of dialkyl carbonates as solvents for expanded polystyrene and to a new process for the recycling of expanded polystyrene. Said process comprises the volume reduction of expanded polystyrene by dissolution with a dialkyl carbonate, or a blend of dialkyl carbonates, the removal of the insoluble components by filtration, the selective precipitation of polystyrene with a non-solvent or a blend of non-solvents, the separation, drying and extrusion of the precipitated polystyrene. This process allows the recovery of pure polystyrene without altering its properties.

    摘要翻译： 本发明涉及碳酸二烷基酯作为发泡聚苯乙烯的溶剂的用途以及用于再发泡聚苯乙烯的新方法。 所述方法包括通过用碳酸二烷基酯或碳酸二烷基酯的共混物溶解来发泡聚苯乙烯的体积减少，通过过滤除去不溶性组分，用非溶剂或非溶剂的共混物选择性沉淀聚苯乙烯， 沉淀聚苯乙烯的分离，干燥和挤出。 该方法允许回收纯聚苯乙烯而不改变其性质。

    Process for the Recycling of Expanded Polystyrene
    6.
    发明申请
    Process for the Recycling of Expanded Polystyrene 有权
    膨胀聚苯乙烯回收方法

    公开(公告)号：US20080221228A1

    公开(公告)日：2008-09-11

    申请号：US11996075

    申请日：2006-06-28

    申请人： Marcello Notari ,  Franco Rivetti ,  Maurizio Ghirardini ,  Sergio Lombardini

    发明人： Marcello Notari ,  Franco Rivetti ,  Maurizio Ghirardini ,  Sergio Lombardini

    IPC分类号： C08J11/08

    CPC分类号： C08J11/08 ,  C08J2325/06 ,  Y02W30/701

    摘要： The invention relates to an enhanced process for the recycling of expanded polystyrene. Said process essentially comprises the reduction in volume of expanded polystyrene by means of dissolution in a solvent, separation of the insoluble components, selective precipitation of the polystyrene with an anti-solvent, separation, drying and extrusion of the precipitated polystyrene, recovery by distillation and recycling of the solvent. The process is characterized in that the anti-solvent is a butanol selected form n-butanol, iso-butanol or sec-butanol and the solvent is dimethyl carbonate, alone or in a mixture containing up to 25% by weight of butanol.

    摘要翻译： 本发明涉及一种用于再发泡聚苯乙烯的增强方法。 所述方法基本上包括通过在溶剂中的溶解减少发泡聚苯乙烯的体积，分离不溶组分，用抗溶剂选择性沉淀聚苯乙烯，分离，干燥和挤出沉淀的聚苯乙烯，通过蒸馏回收和 回收溶剂。 该方法的特征在于，反溶剂是选自正丁醇，异丁醇或仲丁醇的丁醇，溶剂是单独的碳酸二甲酯或含至多25重量％丁醇的混合物。

    Use of dialkyl carbonates as solvents for expanded polystyrene
    7.
    发明申请
    Use of dialkyl carbonates as solvents for expanded polystyrene 有权
    使用碳酸二烷基酯作为发泡聚苯乙烯的溶剂

    公开(公告)号：US20060241193A1

    公开(公告)日：2006-10-26

    申请号：US10566401

    申请日：2004-08-31

    申请人： Marcello Notari ,  Franco Rivetti

    发明人： Marcello Notari ,  Franco Rivetti

    IPC分类号： C08J11/04

    CPC分类号： C08J3/095 ,  C08J11/08 ,  C08J2325/06 ,  Y02W30/701

    摘要： The invention relates to the use of dialkyl carbonates as solvents for expanded polystyrene and to a new process for the recycling of expanded polystyrene. Said process comprises the volume reduction of expanded polystyrene by dissolution with a dialkyl carbonate, or a blend of dialkyl carbonates, the removal of the insoluble components by filtration, the selective precipitation of polystyrene with a non-solvent or a blend of non-solvents, the separation, drying and extrusion of the precipitated polystyrene. This process allows the recovery of pure polystyrene without altering its properties.

    摘要翻译： 本发明涉及碳酸二烷基酯作为发泡聚苯乙烯的溶剂的用途以及用于再发泡聚苯乙烯的新方法。 所述方法包括通过用碳酸二烷基酯或碳酸二烷基酯的共混物溶解来发泡聚苯乙烯的体积减少，通过过滤除去不溶组分，用非溶剂或非溶剂的共混物选择性沉淀聚苯乙烯， 沉淀聚苯乙烯的分离，干燥和挤出。 该方法允许回收纯聚苯乙烯而不改变其性质。

    Process for the recycling of expanded polystyrene
    8.
    发明授权
    Process for the recycling of expanded polystyrene 有权
    膨胀聚苯乙烯回收工艺

    公开(公告)号：US07728047B2

    公开(公告)日：2010-06-01

    申请号：US11996075

    申请日：2006-06-28

    申请人： Marcello Notari ,  Franco Rivetti ,  Maurizio Ghirardini ,  Sergio Lombardini

    发明人： Marcello Notari ,  Franco Rivetti ,  Maurizio Ghirardini ,  Sergio Lombardini

    IPC分类号： C08J11/04

    CPC分类号： C08J11/08 ,  C08J2325/06 ,  Y02W30/701

    摘要： The invention relates to an enhanced process for the recycling of expanded polystyrene. Said process essentially comprises the reduction in volume of expanded polystyrene by means of dissolution in a solvent, separation of the insoluble components, selective precipitation of the polystyrene with an anti-solvent, separation, drying and extrusion of the precipitated polystyrene, recovery by distillation and recycling of the solvent. The process is characterized in that the anti-solvent is a butanol selected form n-butanol, iso-butanol or sec-butanol and the solvent is dimethyl carbonate, alone or in a mixture containing up to 25% by weight of butanol.

    摘要翻译： 本发明涉及一种用于再发泡聚苯乙烯的增强方法。 所述方法基本上包括通过在溶剂中的溶解减少发泡聚苯乙烯的体积，分离不溶组分，用抗溶剂选择性沉淀聚苯乙烯，分离，干燥和挤出沉淀的聚苯乙烯，通过蒸馏回收和 回收溶剂。 该方法的特征在于，反溶剂是选自正丁醇，异丁醇或仲丁醇的丁醇，溶剂是单独的碳酸二甲酯或含至多25重量％丁醇的混合物。