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58 条记录 (耗时 0.018 秒)

    Elastomeric copolymers of ethylene with propylene and process for their preparation
    11.
    发明授权
    Elastomeric copolymers of ethylene with propylene and process for their preparation 失效
    乙烯与丙烯的弹性共聚物及其制备方法

    公开(公告)号：US06448351B1

    公开(公告)日：2002-09-10

    申请号：US09707645

    申请日：2000-11-07

    申请人： Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati

    发明人： Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati

    IPC分类号： C08F442

    CPC分类号： C08F210/16 ,  C08F4/65912 ,  C08F4/65927 ,  Y10S526/943 ,  C08F210/06 ,  C08F2500/17 ,  C08F2500/21 ,  C08F2500/20

    摘要： Amorphous copolymers of ethylene with propylene, and optionally with minor amounts of polyenes, have the following characteristics: (A) the % content by mole of propylene in the copolymer (%P) and the triads ratio EPE/(EPE+PPE+PPP) satisfy the following relationship: 0.01%P+EPE/(E?E+PPE+PPP)≧1 (B) less than 2% of the CH2 groups in the chain are in sequences (CH2)n, wherein n is an even number. These copolymers are obtainable by operating in the presence of particular metallocene catalysts having two fluorenyl groups joined together through a bridging group.

    摘要翻译： 乙烯与丙烯和任选少量多烯的无定形共聚物具有以下特征：（A）共聚物中的丙烯含量％（％P）和三元组比EPE /（EPE + PPE + PPP） 满足以下关系：（B）链中少于2％的CH 2基团为（CH 2）n序列，其中n为偶数。这些共聚物可通过在具有两个芴基 团体通过桥接组合在一起。

    Bituminous compositions modified with polyolefinic materials
    12.
    发明授权
    Bituminous compositions modified with polyolefinic materials 失效
    用聚烯烃材料改性的沥青组合物

    公开(公告)号：US06284820B1

    公开(公告)日：2001-09-04

    申请号：US08900035

    申请日：1997-07-24

    申请人： Vittorio Braga ,  Emilio Martini ,  Maurizio Galimberti ,  Enrico Albizzati

    发明人： Vittorio Braga ,  Emilio Martini ,  Maurizio Galimberti ,  Enrico Albizzati

    IPC分类号： C08J9500

    CPC分类号： C08L95/00 ,  C08L2666/06 ,  C08L2666/04

    摘要： The present invention relates to bituminous compositions, particularly suitable for paving and building waterproofing, comprising a bitumen and a copolymer of ethylene with propylene and/or other alpha-olefins and optionally with smaller proportion of a diene or polyene. The copolymer is besides characterized by a very low crystallinity, intrinsic viscosity higher than 1.5 dl/g and by a content of propylene units or of the alpha-olefin in form of triads comprised between 4 and 50% of the propylene or of the alpha-olefin, with at least 70% of said triads having isotactic structure.

    摘要翻译： 本发明涉及沥青组合物，特别适用于铺路和建筑防水，其包含沥青和乙烯与丙烯和/或其它α-烯烃以及任选地较少比例的二烯或多烯的共聚物。 该共聚物的特征在于非常低的结晶度，特性粘度高于1.5dl / g，丙烯单元或三元组形式的α-烯烃含量在丙烯或α-烯烃的4-50％之间， 烯烃，其中至少70％的所述三单元组具有全同立构结构。

    Catalysts and processes for the polymerization of olefins
    13.
    发明授权
    Catalysts and processes for the polymerization of olefins 失效
    催化剂和烯烃聚合方法

    公开(公告)号：US5849653A

    公开(公告)日：1998-12-15

    申请号：US503948

    申请日：1995-07-19

    申请人： Tiziano Dall'Occo ,  Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati ,  Gianni Pennini

    发明人： Tiziano Dall'Occo ,  Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati ,  Gianni Pennini

    IPC分类号： C08F4/642 ,  C08F4/64 ,  C08F4/648 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16

    CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16 ,  C08F4/65912 ,  C08F4/65922 ,  Y10S526/943

    摘要： Catalysts for the polymerization of olefins are disclosed, which comprise the reaction product of: (A) a bridged and/or substituted cyclopentadienyl compound of titanium, zirconium or hafnium; (B) an organometallic aluminum compound of the formula (II): Al(CH.sub.2 --CR.sup.4 R.sup.5 R.sup.6).sub.w R.sup.7.sub.y H.sub.z(II) wherein in the (CH.sub.2 --CR.sup.4 R.sup.5 R.sup.6) groups, which are the same or different, R.sup.4 is an alkyl, alkenyl or arylalkyl group having from 1 to 10 carbon atoms, R.sup.5 is an alkyl, alkenyl, aryl, arylalkyl or alkylaryl group having from 3 to 50 carbon atoms which is different from a straight alkyl or alkenyl group and, optionally, R.sup.4 and R.sup.5 fused together can form a ring having from 4 to 6 carbon atoms, R.sup.6 is hydrogen or an alkyl, alkenyl or arylalkyl group having from 1 to 10 carbon atoms, the R.sup.7 substituents, same or different, are alkyl, alkenyl, aryl, arylalkyl or alkylaryl radicals containing from 1 to 10 carbon atoms and, optionally, can contain Si or Ge atoms, w is 1, 2 or 3, z is 0 or 1, y=3-w-z; and (C) water. The molar ratio aluminum/water is comprised between 1:1 and 100:1. These catalysts show an improved activity with respect to known catalysts wherein an aluminum compound different from those of the above formula is used.

    摘要翻译： 公开了用于烯烃聚合的催化剂，其包含以下反应产物：（A）钛，锆或铪的桥连和/或取代的环戊二烯基化合物; （B）式（II）的有机金属铝化合物：Al（CH2-CR4R5R6）wR7yHz（Ⅱ）其中在相同或不同的（CH2-CR4R5R6）基团中，R4是烷基，烯基或芳基烷基 具有1至10个碳原子，R 5是具有3至50个碳原子的烷基，烯基，芳基，芳基烷基或烷基芳基，其不同于直链烷基或烯基，并且任选地，R 4和R 5稠合在一起可以形成 具有4至6个碳原子的环，R 6是氢或具有1至10个碳原子的烷基，链烯基或芳基烷基，相同或不同的R 7取代基是含1个碳原子的烷基，烯基，芳基，芳烷基或烷芳基 至10个碳原子，并且任选地可以含有Si或Ge原子，w是1,2或3，z是0或1，y = 3-wz; 和（C）水。 铝/水的摩尔比为1:1至100:1。 这些催化剂相对于已知的催化剂显示出改善的活性，其中使用与上式不同的铝化合物。

    Elastomeric copolymers of ethylene with alpha-olefins and process for their preparation
    16.
    发明授权
    Elastomeric copolymers of ethylene with alpha-olefins and process for their preparation 失效
    乙烯与α-烯烃的弹性共聚物及其制备方法

    公开(公告)号：US06221992B1

    公开(公告)日：2001-04-24

    申请号：US08876865

    申请日：1997-06-16

    申请人： Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati

    发明人： Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati

    IPC分类号： C08F21006

    CPC分类号： C08F210/16 ,  C08F4/65912 ,  C08F4/65927 ,  Y10S526/943 ,  C08F210/06 ,  C08F2500/17 ,  C08F2500/21 ,  C08F2500/20

    摘要： Amorphous copolymers of ethylene with propylene, and optionally with minor amounts of polyenes, have the following characteristics: (A) the % content by mole of propylene in the copolymer (%P) and the triads ratio EPE/(EPE+PPE+PPP) satisfy the following relationship: 0.01%P+EPE/(EPE+PPE+PPP)≧1 (B) less than 2% of the CH2 groups in the chain are in sequences (CH2)n, wherein n is an even number. These copolymers are obtainable by operating in the presence of particular metallocene catalysts having two fluorenyl groups joined together through a bridging group.

    摘要翻译： 乙烯与丙烯和任选少量多烯的无定形共聚物具有以下特征：（A）共聚物中的丙烯含量％（％P）和三元组比EPE /（EPE + PPE + PPP） 满足以下关系：0.01％P + EPE /（EPE + PPE + PPP）> = 1（B）链中CH2基团的2％以序列（CH2）n表示，其中n为偶数。 这些共聚物可通过在具有通过桥连基团连接在一起的两个芴基的特定金属茂催化剂存在下操作而获得。

    Catalysts and processes for the polymerization of olefins
    17.
    发明授权
    Catalysts and processes for the polymerization of olefins 失效
    催化剂和烯烃聚合方法

    公开(公告)号：US6136932A

    公开(公告)日：2000-10-24

    申请号：US176188

    申请日：1998-10-21

    申请人： Tiziano Dall'occo ,  Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati ,  Gianni Pennini

    发明人： Tiziano Dall'occo ,  Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati ,  Gianni Pennini

    IPC分类号： C08F4/642 ,  C08F4/64 ,  C08F4/648 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16 ,  C08F4/602

    CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16 ,  C08F4/65912 ,  C08F4/65922 ,  Y10S526/943

    摘要： Catalysts for the polymerization of olefins which comprise the reaction product of (a) a bridged and/or substituted cyclopentadienyl compound of titanium, zirconium, or hafnium; (b) an organometallic aluminum compound of formula Al(CH.sub.2 --CR.sup.4 R.sup.5 R.sup.6).sub.w R.sup.7.sub.y H.sub.z, wherein in the (CH.sub.2 --CR.sup.4 R.sup.5 R.sup.6) groups, which are the same or different, R.sup.4 is an alkyl, alkenyl or arylalkyl group having from 1 to 10 carbon atoms, R.sup.5 is an alkyl, alkenyl, aryl, arylalkyl or alkylaryl group having from 3 to 50 carbon atoms and, optionally, R.sup.4 and R.sup.5 can be fused together to form a ring having from 4-6 carbon atoms, R.sup.6 is hydrogen or an alkyl alkenyl or arylalkyl group having from 1 to 10 carbon atoms, the R.sup.7 substituents, the same or different, are alkyl, alkenyl, aryl, arylalkyl or alkylaryl radicals having from 1 to 10 carbon atoms and, optionally, can contain Si or Ge atoms, w is 1, 2 or 3, z is 0 or 1, and y=3-w-z; and (c) water. The molar ratio of aluminum to water is from 1:1 to 100:1. The catalysts show an improved activity with respect to known catalysts wherein an aluminum compound different from those of the invention are used.

    摘要翻译： 用于烯烃聚合的催化剂，其包含（a）钛，锆或铪的桥连和/或取代的环戊二烯基化合物的反应产物; （b）式A1（CH2-CR4R5R6）wR7yHz的有机金属铝化合物，其中在相同或不同的（CH2-CR4R5R6）基团中，R4是具有1至10个碳原子的烷基，烯基或芳基烷基 R 5是具有3至50个碳原子的烷基，烯基，芳基，芳基烷基或烷基芳基，并且任选地，R 4和R 5可以一起稠合形成具有4-6个碳原子的环，R 6是氢或烷基 具有1-10个碳原子的链烯基或芳基烷基，相同或不同的R 7取代基是具有1-10个碳原子的烷基，烯基，芳基，芳基烷基或烷基芳基，并且任选地可以含有Si或Ge原子， w为1,2或3，z为0或1，y = 3-wz; 和（c）水。 铝与水的摩尔比为1:1至100:1。 相对于已知的催化剂，催化剂显示出改善的活性，其中使用不同于本发明的铝化合物。

    Process for the (co)polymerization of olefins
    18.
    发明授权
    Process for the (co)polymerization of olefins 失效
    烯烃（共）聚合方法

    公开(公告)号：US6028140A

    公开(公告)日：2000-02-22

    申请号：US865079

    申请日：1997-05-29

    申请人： Gianni Collina ,  Tiziano Dall'occo ,  Maurizio Galimberti ,  Enrico Albizzati ,  Luciano Noristi

    发明人： Gianni Collina ,  Tiziano Dall'occo ,  Maurizio Galimberti ,  Enrico Albizzati ,  Luciano Noristi

    IPC分类号： C08F4/658 ,  C08F2/42 ,  C08F2/48 ,  C08F4/642 ,  C08F4/654 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08F297/08 ,  C08G63/48

    CPC分类号： C08F297/08 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08F2410/05 ,  C08F4/65912

    摘要： Homopolymers or copolymers obtained by a multistage process of olefins having the formula CH.sub.2 .dbd.CHR, in which R is hydrogen or R has from 1 to 10 carbon atoms and is an alkyl, cycloalkyl or aryl group, the process comprising:(A) a first stage of polymerization in which one or more of the olefins are polymerized in the presence of a titanium or vanadium catalyst;(B) a treatment stage in which the product obtained in the first stage of polymerization (A) is brought into contact with a compound capable of deactivating the catalyst present in the stage (A); and also brought into contact with a compound of a transition metal M selected from the group consisting of Ti, Zr, V, or Hf containing at least one M-.pi. bond and optionally with an alkyl-Al compound; and(C) a second stage of polymerization in which one or more of the olefins are polymerized, in one or more reactors, in the presence of the product obtained in treatment stage (B).

    摘要翻译： 通过具有式CH 2 = CHR的烯烃的多阶段方法获得的均聚物或共聚物，其中R是氢或R具有1至10个碳原子并且是烷基，环烷基或芳基，所述方法包括：（A）第一 其中一种或多种烯烃在钛或钒催化剂存在下聚合的聚合阶段; （B）使在第一阶段（A）中获得的产物与能够使阶段（A）中存在的催化剂失活的化合物接触的处理阶段; 并且还与选自含有至少一个M-π键和任选与烷基-Al化合物的Ti，Zr，V或Hf组成的组中的过渡金属M的化合物接触; 和（C）在一个或多个反应器中，在处理阶段（B）中获得的产物存在下，使一种或多种烯烃聚合的第二阶段聚合。