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    Process for the preparation of porous polymers and polymers obtainable thereof
    4.
    发明授权
    Process for the preparation of porous polymers and polymers obtainable thereof 失效
    制备可获得的多孔聚合物和聚合物的方法

    公开(公告)号：US07183332B2

    公开(公告)日：2007-02-27

    申请号：US10450603

    申请日：2001-12-21

    申请人： Angelo Ferraro ,  Giovanni Baruzzi ,  Constantine A. Stewart ,  Ofelia Fusco

    发明人： Angelo Ferraro ,  Giovanni Baruzzi ,  Constantine A. Stewart ,  Ofelia Fusco

    IPC分类号： C08F10/06 ,  C08F4/02 ,  C08L23/10

    CPC分类号： C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  Y10S526/943 ,  C08F4/027 ,  C08F2/001 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24

    摘要： A process for preparing porous olefin polymers comprising bringing into contact in a polymerization reactor, at a temperature T1, one or more olefins of the formula (I) CH2═CHR1, R1 being hydrogen, a C1–C20-alkyl or a C6–C12-aryl group, with a catalyst obtained by reacting a solid catalyst component in the form of spheroidal particles comprising a compound of Ti or V not containing metal-π bonds and a Mg halide, optionally containing one or more electron donor compounds, with an aluminum-alkyl (Al-alkyl) compound, then raising the temperature up to the polymerization temperature, said process being characterized in that: a) if the temperature T1 is lower than 40° C., the temperature is raised up to the polymerization temperature is such a way that, for a time of at least one minute after the introduction temperature in such a way that, for a time of at least one minute after the introduction of the catalyst system into the reactor, the temperature of the reaction T2 fulfills the following condition of formula (II) wherein m is the time expressed in minutes employed for reaching the temperature T2; or b) if temperature T1 is 40° C. or higher, the reactor is maintained for a time of at least one minute at a temperature of at least 40° C.

    摘要翻译： 一种制备多孔烯烃聚合物的方法，包括在聚合反应器中，在温度T 1下接触一种或多种式（I）CH 2 -CHR的烯烃 R 1是氢，C 1 -C 20 - 烷基或C 6 - 与通过使包含不含金属-Ip键的Ti或V的化合物的球形颗粒形式的固体催化剂组分与Mg的反应获得的催化剂与Mg 卤化物，任选地含有一个或多个电子给体化合物与烷基铝（Al-烷基）化合物，然后将温度升高到聚合温度，所述方法的特征在于：a）如果温度T 1 低于40℃，温度升高到聚合温度是这样一种方式，使得在引入温度之后至少1分钟的时间，使得在 在介绍后至少一分钟 催化剂体系进入反应器中，反应温度T 2满足以下条件（II），其中m是达到温度T 2的分钟所用的时间 ; 或b）如果温度T≥0.4℃或更高，则反应器在至少40℃的温度下保持至少1分钟的时间。

    Polyolefin compositions
    7.
    发明申请
    Polyolefin compositions 审中-公开
    聚烯烃组合物

    公开(公告)号：US20080182941A1

    公开(公告)日：2008-07-31

    申请号：US11982705

    申请日：2007-11-01

    申请人： Angelo Ferraro ,  Tiziano Dall'Occo ,  Giuliano Cecchin

    发明人： Angelo Ferraro ,  Tiziano Dall'Occo ,  Giuliano Cecchin

    IPC分类号： C08F210/00 ,  C08L23/00

    CPC分类号： C08L23/0815 ,  C08F10/00 ,  C08F210/00 ,  C08F210/16 ,  C08F255/00 ,  C08F255/02 ,  C08L23/10 ,  C08L23/16 ,  C08L51/06 ,  C08L2314/02 ,  C08F4/6555 ,  C08F4/6494 ,  C08F4/651 ,  C08L2666/06 ,  C08L2666/02 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/08 ,  C08F2500/20 ,  C08F2500/11 ,  C08F210/06 ,  C08F2500/17 ,  C08F2500/04

    摘要： A polyolefin composition, comprising: (A) from 5 to 95 parts by weight of a crystalline propylene polymer having an isotactic index greater than 80, selected from polypropylene homopolymer and propylene copolymers containing 0.5 to 15 mol % of ethylene and/or an α-olefin having 4 to 10 carbon atoms, and (B) from 5 to 95 parts by weight of an ethylene/α-olefin copolymer containing from 35 to 70% by weight of ethylene, from 30 to 65% by weight of an olefin CH2═CHR, in which R a hydrocarbyl radical with 1-12 carbon atoms, and from 0 to 10% of a polyene characterized by (i) a Molecular Weight Distribution expressed by Mw/Mn of higher than 3, (ii) a content of 2-1 regioinvertions of the α-olefin units of lower than 5% and (iii) a value of Shore A and content by weight of ethylenic units, calculated on the basis of the whole polymer, such that the point defined by such values falls below the curve defined by the following equation: Y=0.0438X2-4.1332X+A where Y is the value of the Shore A, X is the weight percentage of ethylene units in the polymer calculated by NMR and A is 145.

    摘要翻译： 一种聚烯烃组合物，其包含：（A）5至95重量份的全同立构指数大于80的结晶丙烯聚合物，其选自聚丙烯均聚物和含有0.5至15摩尔％乙烯和/或α-烯烃的丙烯共聚物， 具有4至10个碳原子的烯烃，和（B）5至95重量份的含有35至70重量％乙烯的乙烯/α-烯烃共聚物，30至65重量％的烯烃CH 2， 其中R 1具有1-12个碳原子的烃基和0至10％的多烯，其特征在于（i）由Mw / Mn表示的分子量分布高于3 ，（ii）α-烯烃单元的2-1区域转换的含量低于5％，（iii）肖氏A值和基于整个聚合物计算的烯属单元的重量含量，使得 由这些值定义的点低于由以下等式定义的曲线：<？in-line-formula description =“In-li “公式”end =“lead”？> Y = 0.0438X <2> -4.1332X + A <？in-line-formula description =“In-line Formulas”end =“tail”？> where Y是肖氏A的值，X是通过NMR计算的聚合物中乙烯单元的重量百分比，A是145。

    Polyolefin Compositions
    8.
    发明申请
    Polyolefin Compositions 有权
    聚烯烃组合物

    公开(公告)号：US20120136121A1

    公开(公告)日：2012-05-31

    申请号：US13378952

    申请日：2010-06-23

    申请人： Monica Galvan ,  Marco Ciarafoni ,  Roberto Pantaleoni ,  Angelo Ferraro

    发明人： Monica Galvan ,  Marco Ciarafoni ,  Roberto Pantaleoni ,  Angelo Ferraro

    IPC分类号： C08L23/04

    CPC分类号： C08J5/18 ,  C08J2323/10 ,  C08L23/0807 ,  C08L23/0815 ,  C08L23/10 ,  C08L2666/06

    摘要： Polyolefin compositions particularly suitable for cast film, exhibiting heat sealability, retortability, low haze and stiffness, comprising: 1) 75-85% of a propylene homopolymer or copolymer of propylene with ethylene and/or one or more C4-C10 α-olefin(s), the homopolymer or copolymer having melting temperature equal to or higher than 150° C., 2) 15-25% of a copolymer of ethylene with one or more C4-C10 α-olefin(s) containing from 20 to 30% of said C4-C10 α-olefin(s); said composition having MFR (at 230° C., 2.16 kg) of from 5-10 g/10 min, the total content of ethylene of from 10 to 20%, the total content of C4-C10 α-olefin(s) of from 2 to 8%, the ratio XStot/XSm of the total fraction soluble in Xylene at room temperature to the fraction soluble in Xylene at room temperature of the matrix component (1) of from 5 to 15, and the value of the intrinsic viscosity of the total fraction soluble in Xylene at room temperature (XSIVtot) of 1.5 dl/g or less.

    摘要翻译： 特别适用于流延膜的聚烯烃组合物，具有热封性，蒸煮性，低雾度和刚度，包括：1）75-85％的丙烯均聚物或丙烯与乙烯和/或一种或多种C 4 -C 10α-烯烃的共聚物 s），熔融温度等于或高于150℃的均聚物或共聚物，2）乙烯与一种或多种含有20至30重量％的C 4 -C 10α-烯烃的共聚物的15-25％ 的所述C 4 -C 10α-烯烃; 所述组合物的MFR（在230℃，2.16kg）为5-10g / 10min，乙烯的总含量为10至20％，C 4 -C 10α-烯烃的总含量为 2〜8％，室温下可溶于二甲苯的总馏分的比例XStot / XSm与基体成分（1）的室温下可溶于二甲苯的馏分的比例为5〜15，特性粘度 在室温下可溶于二甲苯的总馏分（XSIVtot）为1.5dl / g以下。

    Low loss snubber for power converters
    10.
    发明授权
    Low loss snubber for power converters 失效
    电源转换器的低损耗缓冲器

    公开(公告)号：US4438486A

    公开(公告)日：1984-03-20

    申请号：US351372

    申请日：1982-02-22

    申请人： Angelo Ferraro

    发明人： Angelo Ferraro

    IPC分类号： H03K17/00 ,  H03K17/0814 ,  H02H7/12 ,  H02M7/537

    CPC分类号： H03K17/08146 ,  H03K2217/0036

    摘要： A low loss snubber provides stress relief for a first controllable semiconductor switch. The low loss snubber comprises a capacitor in series with a diode. This series combination is connected across the first switch, with the diode poled to conduct current to charge the capacitor when the first switch turns off. The low loss snubber further comprises an energy retrieval converter for removing energy from the capacitor when the first switch turns on. The energy retrieval converter has a second controllable semiconductor switch which is repeatedly turned on and off responsive to the first switch remaining in the closed position. An inductor means is in series with the second switch and the capacitor is provided for transferring the energy stored in the inductor means to an external load when the second switch is open.

    摘要翻译： 低损耗缓冲器为第一个可控半导体开关提供了应力消除。 低损耗缓冲器包括与二极管串联的电容器。 该串联组合连接在第一开关上，二极管被极化以在第一开关断开时对电容充电。 低损耗缓冲器还包括能量回收转换器，用于当第一开关导通时从电容器去除能量。 能量检索转换器具有第二可控半​​导体开关，其响应于保持在关闭位置的第一开关被重复地接通和断开。 电感器装置与第二开关串联，并且提供电容器用于当第二开关断开时将存储在电感器装置中的能量传送到外部负载。