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19 条记录 (耗时 0.014 秒)

    Process of (co)polymerization of .alpha.-olefins in the presence of stabilizers
    11.
    发明授权
    Process of (co)polymerization of .alpha.-olefins in the presence of stabilizers 失效
    在稳定剂存在下，α-烯烃（共）聚合的方法

    公开(公告)号：US5350786A

    公开(公告)日：1994-09-27

    申请号：US26097

    申请日：1993-03-04

    申请人： Silvestro Costanzi ,  Damiano Gussoni ,  Luciano Pallini

    发明人： Silvestro Costanzi ,  Damiano Gussoni ,  Luciano Pallini

    IPC分类号： C08F2/44 ,  C08F10/00 ,  C08K5/3435

    CPC分类号： C08F10/00 ,  C08F110/06

    摘要： Stabilizers for organic polymers, consisting of one or more compounds of the classis of the sterically hindered amines (HALS) are directly added to the reaction mixture during the (co)polymerization of the .alpha.-olefins or of their mixtures with other unsaturated monomers.The so-obtained polymeric compositions result perfectly stabilized and show a thermo- and photo-oxidative resistance higher than that of the same polymeric compositions to which the same stabilizers are added by a traditional route.

    摘要翻译： 在α-烯烃或其混合物与其它不饱和单体的（共）聚合过程中，直接将有机聚合物的稳定剂（由空间位阻胺类的一种或多种化合物（HALS）组成）直接加入到反应混合物中。 如此获得的聚合物组合物完全稳定，并且显示比通过传统路线添加相同稳定剂的相同聚合物组合物的热和光氧化抗性更高。

    Process for obtaining granular forms of additives for organic polymers
    14.
    发明授权
    Process for obtaining granular forms of additives for organic polymers 失效
    获得有机聚合物添加剂颗粒形式的方法

    公开(公告)号：US5844042A

    公开(公告)日：1998-12-01

    申请号：US937899

    申请日：1997-09-25

    申请人： Carlo Neri ,  Luciano Pallini

    发明人： Carlo Neri ,  Luciano Pallini

    IPC分类号： C08J3/22 ,  C08K3/00 ,  C08K5/00 ,  C08K5/098 ,  C08K7/16 ,  C08K5/09

    CPC分类号： C08K5/005 ,  C08J3/22 ,  C08K3/0008 ,  C08K5/098

    摘要： Process for obtaining granular forms, from mixtures of powders of two or more additives for organic polymers, including extruding the mixture at a temperature of between about the melting point of the component with the lowest melting point and 140.degree. C., with the condition that, when the mixture consists of two additives, these are not tetrakis �3-(3,5-di-t-butyl-4-hydroxyphenyl) propionyloxymethyl!methane, either in an amorphous or crystalline form, and an antiacid.

    摘要翻译： 用于从两种或更多种有机聚合物添加剂的粉末混合物中获得颗粒形式的方法，包括在最低熔点和140℃的组分的熔点之间的温度下挤出混合物，条件是 当混合物由两种添加剂组成时，它们不是无定形或结晶形式的四[3-（3,5-二叔丁基-4-羟基苯基）丙酰氧基甲基]甲烷和抗酸剂。

    Process for the preparation of (omega-carboalkoxy-nor.alkyl)-dialkylamines
    15.
    发明授权
    Process for the preparation of (omega-carboalkoxy-nor.alkyl)-dialkylamines 失效
    制备（ω-烷氧基 - 烷基） - 二烷基胺的方法

    公开(公告)号：US4468522A

    公开(公告)日：1984-08-28

    申请号：US366095

    申请日：1982-04-06

    申请人： Gian Paolo Chiusoli ,  Mirco Costa ,  Luciano Pallini ,  Giuliana Terenghi

    发明人： Gian Paolo Chiusoli ,  Mirco Costa ,  Luciano Pallini ,  Giuliana Terenghi

    IPC分类号： C07C20060101 ,  C07C101/18

    CPC分类号： C07C227/06

    摘要： Process for the preparation of (omega-carbalkoxy-nor.alkyl) dialkylamines having a linear alkyl chain, comprising the steps of amination of allyl compounds in which at least an allyl carbon atom is a part of a cyclopropane ring which contains one or two carboxyl or carbalkoxy groups on the carbon atom which is adjacent to the allyl carbon, or is a part of a lactone ring, in the presence of catalysts consisting of triarylphosphine complexes of palladium, or trialkyl phosphite complexes of nickel, and the subsequent hydrogenation of the unsaturated amine thus obtained. By so doing, interesting linear amines are obtained, which contain carboxyl units or carbalkoxy units, said amines being useful as additives for the industry of synthetic fibres (viscosity stabilizers for polycaprolactam).

    摘要翻译： 包括具有直链烷基链的（ω-烷氧基 - 烷基）二烷基胺的制备方法，包括烯丙基化合物的胺化步骤，其中至少烯丙基碳原子是含有一个或两个羧基的环丙烷环的一部分 或邻位于烯丙基碳上的碳原子上的烷氧基或作为内酯环的一部分，在由钯的三芳基膦配合物或镍的三烷基亚磷酸酯络合物组成的催化剂存在下，和随后的不饱和的氢化 胺。 通过这样做，获得了含有羧基单元或碳烷氧基单元的有趣的线性胺，所述胺可用作合成纤维工业（聚己内酰胺的粘度稳定剂）的添加剂。

    Process for preparing dienoic acids
    16.
    发明授权
    Process for preparing dienoic acids 失效
    二烯酸的制备方法

    公开(公告)号：US4465634A

    公开(公告)日：1984-08-14

    申请号：US333934

    申请日：1981-12-23

    申请人： Gian P. Chiusoli ,  Luciano Pallini ,  Giuseppe Salerno

    发明人： Gian P. Chiusoli ,  Luciano Pallini ,  Giuseppe Salerno

    IPC分类号： C07C57/03 ,  B01J31/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/353 ,  C07C67/00 ,  C11C1/00 ,  C09F5/08

    CPC分类号： C07C51/353

    摘要： This invention relates to a process for preparing dienoic acids.In particular, the present invention relates to a catalytic process for preparing octadienoic acids from 3-butenoic acids and butadiene.More particularly the present invention is directed to the preparation of octadienoic acids haing the two double bonds in position 3,6 and 2,6 in respect of the carboxylic carbon, starting from 3-butenoic acids and butadiene in the presence of complex catalysts of Rhodium or of Nickel.

    摘要翻译： 本发明涉及二烯酸的制备方法。 特别地，本发明涉及由3-丁烯酸和丁二烯制备辛二烯酸的催化方法。 更具体地说，本发明涉及在铑络合物催化剂存在下，从3-丁烯酸和丁二烯开始制备相对于羧酸在位置3,6和2,6上的两个双键的辛二烯酸 或镍。

    Process for the synthesis of allylated derivatives of 2,2,6,6-tetraalkylpiperidinols
    17.
    发明授权
    Process for the synthesis of allylated derivatives of 2,2,6,6-tetraalkylpiperidinols 失效
    合成2,2,6,6-四烷基哌啶醇的烯丙基化衍生物的方法

    公开(公告)号：US5270470A

    公开(公告)日：1993-12-14

    申请号：US481725

    申请日：1990-02-16

    申请人： Silvestro Costanzi ,  Luciano Pallini ,  Damiano Gussoni

    发明人： Silvestro Costanzi ,  Luciano Pallini ,  Damiano Gussoni

    IPC分类号： C07D211/46 ,  C07D211/36

    CPC分类号： C07D211/46

    摘要： A process is disclosed for the synthesis of 4-allyloxy-2,2,6,6-tetraalkylpiperidinic derivatives by starting from the corresponding 2,2,6,6-tetraaLkyLpiperidinols and from an allyl halide, characterized in that the reaction is made to take place in the absence of water, and in the presence of a finely subdivided allyl-metal hydroxide and of small amounts of a phase-transfer catalyst. The products, which are thus obtained with yields higher than 90%, are useful a stabilizers for polymers or as intermediates for such products.

    摘要翻译： 公开了用于合成4-烯丙氧基-2,2,6,6-四烷基哌啶衍生物的方法，由相应的2,2,6,6-四氢基哌啶醇和烯丙基卤开始，其特征在于使反应生成 在不存在水的情况下进行，并且在细分的烯丙基 - 金属氢氧化物和少量的相转移催化剂的存在下进行。 因此获得的产率高于90％的产品可用作聚合物的稳定剂或作为这种产品的中间体。