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    Catalysts for the polymerization of olefins to spherically shaped polymers
    2.
    发明授权
    Catalysts for the polymerization of olefins to spherically shaped polymers 失效
    用于将烯烃聚合成球状聚合物的催化剂

    公开(公告)号：US3953414A

    公开(公告)日：1976-04-27

    申请号：US524258

    申请日：1974-11-15

    申请人： Paolo Galli ,  Giovanni Di Drusco ,  Saverio De Bartolo

    发明人： Paolo Galli ,  Giovanni Di Drusco ,  Saverio De Bartolo

    IPC分类号： C08F4/02 ,  C08F10/00 ,  C08F210/00 ,  C08F212/00

    CPC分类号： C08F10/00 ,  C08F4/022

    摘要： There are disclosed highly active supported catalysts for the polymerization of olefins to polymers in the form of spheroidal particles which neither break nor cake when subjected to compression. The supported catalysts are prepared by mixingA. a catalyst-forming component which is an organometallic compound of a metal belonging to Group II or III of the Mendelyeev Periodic TableWithB. a supported catalyst-forming component which is the product consisting of a carrier comprising an anhydrous Mg halide and of a halogenated Ti compound chemically combined with the carrier or dispersed on the same, said product being in the form of spherical or spheroidal particles of a size comprised between 1 and 350 microns and having characteristics as set forth in detail hereinbelow.

    摘要翻译： 公开了用于将烯烃聚合成以球形颗粒形式的聚合物的高活性负载催化剂，其在经受压缩时既不破裂也不破碎。 负载型催化剂是通过将A.一种催化成分组分（其为金属的金属化合物）与Bentonlyeev周期表的II或III族与B组成。作为载体的产品的支持的催化成分组分 包含无机卤化镁和与载体化学结合或分散在其上的卤化Ti化合物，所述产物为尺寸为1至350微米的球形或球形颗粒形式，具有详细阐述的特征 在下文中。

    Process for producing synthetic fibers for use in paper-making
    4.
    发明授权
    Process for producing synthetic fibers for use in paper-making 失效
    生产用于造纸的合成纤维的方法

    公开(公告)号：US4211737A

    公开(公告)日：1980-07-08

    申请号：US847172

    申请日：1977-10-31

    申请人： Giovanni Di Drusco ,  Deoscaride Zaffagnini

    发明人： Giovanni Di Drusco ,  Deoscaride Zaffagnini

    IPC分类号： D01D5/11 ,  B22D23/08

    CPC分类号： D01D5/11

    摘要： There is disclosed an improvement in the production of microfibers or fibrils of synthetic thermoplastic polymeric materials by flash-spinning solutions, emulsions or suspensions of the synthetic polymers in solvents, under the action of a high-speed jet of gaseous or vaporous fluid having an angular direction with respect to the solution, emulsion or suspension being flash-spun. The improvement consists in causing the fluid jet to expand through a nozzle (or duct) of the convergent-divergent type and in extruding the polymer solution, emulsion or dispersion under flash conditions at an angle towards the fluid jet in expansion in the divergent portion of the nozzle.

    摘要翻译： 公开了通过闪蒸纺丝溶液，合成聚合物在溶剂中的乳液或悬浮液在高速喷射气态或蒸汽流体的作用下，合成热塑性聚合物材料的微纤维或原纤维的生产改进， 方向相对于溶液，乳液或悬浮液进行闪纺。 改进之处在于使流体射流通过会聚发散型的喷嘴（或管道）膨胀，并且在闪蒸条件下将聚合物溶液，乳液或分散体以与流体射流成一定角度的方式挤出，在膨胀的发散部分 喷嘴。

    Process for treating olefinic polymers with steam
    6.
    发明授权
    Process for treating olefinic polymers with steam 失效
    用蒸汽处理烯烃聚合物的方法

    公开(公告)号：US4332933A

    公开(公告)日：1982-06-01

    申请号：US165017

    申请日：1980-07-01

    申请人： Giovanni Di Drusco ,  Roberto Rinaldi ,  Gabriele Govoni

    发明人： Giovanni Di Drusco ,  Roberto Rinaldi ,  Gabriele Govoni

    IPC分类号： F26B3/06 ,  C08F6/02 ,  F26B3/16 ,  C08F6/00

    CPC分类号： C08F6/02

    摘要： The halogen and organic substances content of the catalyst residues in alpha-olefin crystalline (co)-polymers prepared with catalysts obtained by reacting:(a) a metallorganic Al compound with(b) a Ti compound supported on a Mg halide, in which an electron-donor is combined with the Ti compound and/or the Mg compound and optionally with (a),are reduced by passing a stream of superheated steam (optionally mixed with other gaseous fluids) over the polymer in powder form at a temperature of 105.degree.-140.degree. C. and under a pressure of 0.1-10 kg/cm.sup.2 gauge, the steam/polymer ratio being comprised between 0.10 and 1 by weight.

    摘要翻译： 通过使（a）金属有机Al化合物与（b）负载在卤化镁上的Ti化合物反应获得的催化剂制备的α-烯烃结晶（共）聚合物中的催化剂残余物的卤素和有机物质含量，其中 电子给体与Ti化合物和/或Mg化合物任选地与（a）组合，通过使过热蒸汽（任选地与其它气态流体混合）在粉末形式的聚合物上在105℃的温度下被还原 在-1.0〜10kg / cm2的压力下，蒸汽/聚合物的比例在0.10-1重量份之间。

    Process for continuous recovery of solid polycarbonate from solutions thereof in organic solvents
    7.
    发明授权
    Process for continuous recovery of solid polycarbonate from solutions thereof in organic solvents 失效
    从其溶液中在有机溶剂中连续回收固体聚碳酸酯的方法

    公开(公告)号：US4212967A

    公开(公告)日：1980-07-15

    申请号：US14161

    申请日：1979-02-22

    申请人： Gabriele Govoni ,  Giovanni Di Drusco ,  Canzio Corazzari ,  Pierluigi Guardigli

    发明人： Gabriele Govoni ,  Giovanni Di Drusco ,  Canzio Corazzari ,  Pierluigi Guardigli

    IPC分类号： C08G63/00 ,  B01F5/04 ,  C08G64/20 ,  C08G64/40 ,  C08J3/14 ,  C08G63/72

    CPC分类号： C08J3/14 ,  B01F5/0416 ,  C08G64/205 ,  C08G64/403 ,  C08J2369/00

    摘要： Solid polycarbonate is recovered continuously from solutions thereof in organic solvents by a process consisting of:(a) subdividing the polycarbonate solution by steam (water vapor) at either sonic or ultra-sonic speed by means of a De Laval type nozzle;(b) conveying the dispersion thus obtained into a tubular heat exchanger having an increasing cross-section, preferably spirally-shaped or with elbow stretches having a thermal exchange coefficient of 500-1500 Kcal/h.m.sup.2 .degree.C., in which the heat dispersion is kept at 100.degree.-140.degree. C. for periods of time comprised between 0.05 and 5 seconds;(c) separating the solid from the vapors in a cyclone;(d) drying of the solid in a water vapor fluid bed.

    摘要翻译： 固体聚碳酸酯通过以下工艺由有机溶剂中的溶液连续回收，该方法包括：（a）通过De Laval型喷嘴以声波或超声速将蒸汽（水蒸汽）再分成聚碳酸酯溶液; （b）将如此获得的分散体输送到具有横截面增大的管状热交换器中，该热交换器具有横截面增大，优选为螺旋形状或具有热交换系数为500-1500Kcal / h.m2℃的肘部伸长，其中热量 分散体保持在100-140℃，时间为0.05-5秒; （c）在旋风分离器中将固体与蒸汽分离; （d）在水蒸气流化床中干燥固体。