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    112.
    发明专利
    未知

    公开(公告)号：BR0108784A

    公开(公告)日：2002-12-03

    申请号：BR0108784

    申请日：2001-12-10

    Applicant: BASELL POLIOLEFINE SPA

    Inventor： COVEZZI MASSIMO ,  FAIT ANNA ,  BENEDETTO ALMERINDA DI

    IPC: C08F4/654 ,  C08F10/00 ,  C08F110/06

    Abstract: A process is provided for the preparation of a solid catalyst component for the polymerization of olefins, comprising continuously feeding a liquid containing a titanium compound having at least one titanium-halogen bond into a vessel containing a solid comprising a magnesium halide and continuously discharging liquid from the vessel, whereby the concentration of the solid is maintained within the range of between 80 and 300 g/l, and the product between the average residence time of the liquid in the vessel and the concentration of the solid is maintained below 10,000 min*g/l. An advantage of the process is the reduced time and reactor volume necessary to prepare the catalysts, which show good activity and stereospecificity.

    Continuous process for the preparation of solid catalyst components for the polymerisation of alpha-olefins
    114.
    发明专利
    Continuous process for the preparation of solid catalyst components for the polymerisation of alpha-olefins 未知

    公开(公告)号：AU1710402A

    公开(公告)日：2002-06-24

    申请号：AU1710402

    申请日：2001-12-10

    Applicant: BASELL POLIOLEFINE SPA

    Inventor： COVEZZI MASSIMO ,  FAIT ANNA ,  BENEDETTO ALMERINDA DI

    IPC: C08F4/654 ,  C08F10/00 ,  C08F110/06

    Abstract: A process is provided for the preparation of a solid catalyst component for the polymerization of olefins, comprising continuously feeding a liquid containing a titanium compound having at least one titanium-halogen bond into a vessel containing a solid comprising a magnesium halide and continuously discharging liquid from the vessel, whereby the concentration of the solid is maintained within the range of between 80 and 300 g/l, and the product between the average residence time of the liquid in the vessel and the concentration of the solid is maintained below 10,000 min*g/l. An advantage of the process is the reduced time and reactor volume necessary to prepare the catalysts, which show good activity and stereospecificity.

    PROCESS AND APPARATUS FOR THE GAS-PHASE POLYMERISATION
    115.
    发明专利
    PROCESS AND APPARATUS FOR THE GAS-PHASE POLYMERISATION 未知

    公开(公告)号：HK1026440A1

    公开(公告)日：2000-12-15

    申请号：HK00105754

    申请日：2000-09-12

    Applicant: BASELL POLIOLEFINE SPA

    Inventor： GOVONI GABRIELE ,  COVEZZI MASSIMO

    IPC: B01J8/18 ,  B01J8/38 ,  B01J19/24 ,  C08F2/00 ,  C08F2/34 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/06 ,  C08F210/16 ,  C08F ,  B01J

    Abstract: An apparatus for gas-phase catalytic polymerization comprising a first vertical reactor (1), a second vertical reactor (2), the upper region of said reactor (1) being connected by a connecting part (3) to a solid as separator (4), which is in turn connected to the upper region of second reactor (2), the lower region of second reactor (2) being connected to the lower region of first reactor (1) by a connecting part (5), the solid/gas separator (4) being connected through a recycle line (6) to one or more points of reintroduction into connecting part (5) or into reactor (1), the apparatus having a line (12) for feeding catalyst into reactor (1), a polymer discharge system (11) from reactor (2), a line (13) for feeding monomers, the apparatus being further characterized in that it comprises a line (15) for feeding gas or liquid into reactor (2).

    composições poliméricas límpidas e flexíveis de propileno
    117.
    发明专利
    composições poliméricas límpidas e flexíveis de propileno 未知

    公开(公告)号：BRPI0206560B1

    公开(公告)日：2016-02-10

    申请号：BR0206560

    申请日：2002-11-22

    Applicant: BASELL POLIOLEFINE SPA ,  BASELL POLIOLEFINE SRL

    Inventor： LONARDO ANGELO ,  PELLICONI ANTEO ,  MEI GABRIELE

    IPC: C08F8/50 ,  C08L23/16 ,  C08F297/00 ,  C08L23/10 ,  C08L23/14

    Abstract: "composições poliméricas límpidas e flexíveis de propileno". o presente invento descreve uma composição polimérica tendo um valor da taxa de fluxo de fundido (mfr) de 3 a 30 g/10 min., compreendendo (percentual em peso): a) de 50 a 90% de um ou mais copolímero(s) de propileno tendo um teor de fração insolúvel em xileno à temperatura ambiente de não menos que 85%, escolhido dentre o grupo que consiste de (a1) copolímeros estatísticos de propileno com etileno contendo de 1 a 7% de etileno; (a2) copolímeros de propileno com uma ou mais -olefinas c~ 4~-c~ 8~ contendo de 2 a 10% da -olefina c~ 4~-c~ 8~; (a3) copolímeros de propileno com etileno e uma ou mais -olefina c~ 4~-c~ b~ contendo de 0,5 a 5% de etileno e de 2 a 6% da -olefina c~ 4~-c~ 8~; e b) de 10 a 50% de um copolímero de propileno contendo de 8 a 40% de etileno e opcionalmente de 1 a 10% de uma -olefina c~ 4~-c~ 8~; o dito valor de mfr (mfr (2)) sendo obtido ao submeter a degradação uma composição precursora compreendendo os mesmos copolímeros (a) e (b) nas proporções ditas acima, porém tendo o valor de mfr (mfr (1)) de 0,1 a 5 g/10 min. com uma razão mfr (2) para mfr (1) de 1,5 a 20.

    PROCESO PARA LA PRODUCCION CONTINUA DE EMULSIONES.
    120.
    发明专利
    PROCESO PARA LA PRODUCCION CONTINUA DE EMULSIONES. 未知

    公开(公告)号：ES2308228T3

    公开(公告)日：2008-12-01

    申请号：ES04765721

    申请日：2004-09-30

    Applicant: BASELL POLIOLEFINE SPA

    Inventor： ARLETTI ARRIGO ,  VINCENZI PAOLO

    IPC: B01F25/64 ,  B01F27/73 ,  B01J27/138 ,  B01J37/00 ,  F04D1/06

    Abstract: Un proceso multietapa para la producción continua de una emulsión que consiste en someter por lo menos dos líquidos inmiscibles a una serie de por lo menos dos estadios de mezclado efectuados por lo menos en dos dispositivos estator-rotor sucesivos, en dicho proceso la velocidad periférica de cada rotor de dichos dispositivos estator-rotor se sitúa entre 5 y 60 m/s, caracterizado porque una salida periférica (8) de un primer dispositivo estator-rotor (4, 5) está conectada a una entrada axial (9) del siguiente dispositivo estator-rotor (10) mediante un conducto (7), en el que el número de Reynolds Re T dentro de dicho conducto es mayor que 5000, la porción inicial de dicho conducto está orientada en dirección sustancialmente tangencial con respecto a la circunferencia del rotor.

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