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    Water-resistant telecommunication cable
    3.
    发明授权
    Water-resistant telecommunication cable 有权
    防水通信电缆

    公开(公告)号：US07865047B2

    公开(公告)日：2011-01-04

    申请号：US10500072

    申请日：2002-12-19

    申请人： Mauro Maritano ,  Raffaella Donetti ,  Antonio Campana ,  Massimiliano Pavan ,  Raimondo Scordamaglia

    发明人： Mauro Maritano ,  Raffaella Donetti ,  Antonio Campana ,  Massimiliano Pavan ,  Raimondo Scordamaglia

    IPC分类号： G02B6/44

    CPC分类号： H01B3/441 ,  C08K5/0016 ,  C08K5/005 ,  C08K5/20 ,  C08L29/04 ,  C08L77/04 ,  C09D129/04 ,  G02B6/441 ,  G02B6/4429 ,  G02B6/4494 ,  H01B3/446 ,  Y10T428/2913 ,  Y10T428/2933 ,  Y10T428/294 ,  C08L2666/14

    摘要： Telecommunication cable having an elongated element housing at least one transmitting element. The elongated element has a water-soluble polymeric composition of a vinyl alcohol/vinyl acetate copolymer having a saponification degree of about 60% to about 95%; a plasticizer; a hydrolysis stabilizer compound having a chelant group having two hydrogen atoms bonded to two respective heteroatoms selected from nitrogen, oxygen and sulfur. The two hydrogen atoms have a distance between each other of 4.2×10−10 m to 5.8×10−10 m. The stabilizer compound is present in an amount of at least 0.75 mmoles per 100 g of copolymer. The elongated element is in particular a buffer tube housing a plurality of optical fibers. The presence of the stabilizer reduces the increase of the hydrolysis degree of the copolymer upon aging, thus maintaining the desired water blocking properties of the copolymer.

    摘要翻译： 电信电缆具有容纳至少一个发送元件的细长元件。 细长元件具有皂化度为约60％至约95％的乙烯醇/乙酸乙烯酯共聚物的水溶性聚合物组合物; 增塑剂; 水解稳定剂化合物，其具有与两个选自氮，氧和硫的杂原子键合的两个氢原子的螯合基团。 两个氢原子彼此之间的距离为4.2×10-10 m至5.8×10-10 m。 稳定剂化合物的存在量为每100克共聚物至少0.75毫摩尔。 细长元件特别是容纳多根光纤的缓冲管。 稳定剂的存在降低了共聚物在老化时的水解度的增加，从而保持共聚物所需的阻水性。

    Components and catalyst for the polymerization of olefins
    6.
    发明授权
    Components and catalyst for the polymerization of olefins 失效
    用于烯烃聚合的组分和催化剂

    公开(公告)号：US5552359A

    公开(公告)日：1996-09-03

    申请号：US391327

    申请日：1995-02-21

    申请人： Giampiero Morini ,  Luisa Barino ,  Raimondo Scordamaglia ,  Elisabetta Barbassa ,  Giovanni Baruzzi

    发明人： Giampiero Morini ,  Luisa Barino ,  Raimondo Scordamaglia ,  Elisabetta Barbassa ,  Giovanni Baruzzi

    IPC分类号： C08F4/647 ,  C07C211/11 ,  C07C211/25 ,  C07C211/27 ,  C08F4/60 ,  C08F4/649 ,  C08F4/651 ,  C08F4/654 ,  C08F10/00 ,  B01J31/00

    CPC分类号： C08F10/00 ,  C07C211/11 ,  C07C211/25 ,  C07C211/27 ,  C07C2101/14 ,  C07C2101/16

    摘要： Disclosed are catalyst components for the polymerization of olefins which include magnesium halide in active form, and, supported thereon, a titanium halide or titanium halogen alcoholate and an electron-donor compound selected from the group diamines of formula ##STR1## wherein the radicals R.sub.1 to R.sub.10 are the same or different and are hydrogen or C.sub.1 -C.sub.18 hydrocarbon radicals, with the proviso that at least one of the R.sub.7 and R.sub.8 radicals and at least one of the R.sub.9 and R.sub.10 radicals are not hydrogen. Also, disclosed are catalysts obtained from the catalyst components and an Al-alkyl compound, as well as catalysts obtained by reaction of an Al-alkyl compound and a diamine of formula (I) with a solid catalyst component including a titanium halide or a titanium halogen alcoholate, and an electron-donor compound having particular characteristics of extractability with Al-triethyl, supported on magnesium halide in active form.

    摘要翻译： 公开了用于烯烃聚合的催化剂组分，其包括活性形式的卤化镁，并且在其上负载有卤化钛或卤化钛卤化物，以及选自式（I）的二胺的电子给体化合物，其中 基团R 1至R 10相同或不同，为氢或C 1 -C 18烃基，条件是R 7和R 8基团中的至少一个和R 9和R 10基团中的至少一个不是氢。 还公开了由催化剂组分和Al-烷基化合物获得的催化剂，以及由烷基铝化合物和式（I）的二胺与固体催化剂组分反应获得的催化剂，所述固体催化剂组分包括卤化钛或钛 卤素醇化物，和具有萃取性的具有特征的三乙基铝的电子给体化合物，负载在活性形式的卤化镁上。