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    Process for the polymerization of alpha-olefins
    2.
    发明授权
    Process for the polymerization of alpha-olefins 失效
    ALPHA-OLEFINS的聚合方法

    公开(公告)号：US3701766A

    公开(公告)日：1972-10-31

    申请号：US3701766D

    申请日：1971-03-17

    Applicant: SOLVAY

    Inventor： DELBOUILLE ANDRE ,  TOUSSAINT HENRI

    IPC: C08F10/00 ,  C08F1/56 ,  C08F3/10

    CPC classification number: C08F10/00 ,  Y10S526/904 ,  C08F4/655

    Abstract: POLYMERIZATION OF A-OLEFINS IS CARRIED OUT IN THE PRESENCE OF A SOLID CATALYST WHICH IS COMPOSED OF AN ORGANIC COMPOUND OF A METAL OF GROUPS I TO III OF THE PERIODIC TABLE AND A CRYSTALLINE HALIDE OF A REDUCED METAL OF GROUPS IVB, VB OR VIB OF THE PERIODIC TABLE DEPOSITED ON A PULVERULENT SUPPORT. THE REDUCED METAL HALIDE IS OBTAINED BY REDUCING A HALIDE OF THE METAL AT ITS MAXIMUM VALENCE WTH AN ORGANOMETALLIC COMPOUND AT A TEMPERATURE BELOW 0*C. AND IN THE ABSENCE OF LIQUID DILUENT WHEREIN THE HALIDE OF THE METAL AT ITS MAXIMUM VALENCE OR THE ORGANOMETALLIC COMPOUND HAS BEEN ABSORBED ON A SOLID PULVERULENT SUPPORT PRIOR TO THE REDUCTION. CATALYSTS PREPARED IN THIS MANNER HAVE A HIGH STEREOSPECIFICITY AND CATALYST ACTIVITY, AND POLYMERIZATION CARRIED OUT IN THE PRESENCE THEREOF YIELDS HIGHLY ISOTACTIC CRYSTALLINE POLYMER.

    Process for the polymerization of alpha-olefins
    3.
    发明授权
    Process for the polymerization of alpha-olefins 失效
    ALPHA-OLEFINS的聚合方法

    公开(公告)号：US3594330A

    公开(公告)日：1971-07-20

    申请号：US3594330D

    申请日：1968-08-29

    Applicant: SOLVAY

    Inventor： DELBOUILLE ANDRE ,  TOUSSAINT HENRI

    IPC: C08F4/68 ,  C08F10/00 ,  C08F3/02

    CPC classification number: C08F10/00 ,  Y10S526/904 ,  C08F4/655

    Abstract: POLYMERIZATION OF A-OLEFINS IS CARRIED OUT IN THE PRESENCE OF A SOLID CATALYST WHICH IS COMPOSED OF AN ORGANIC COMPOUND OF A METAL OF GROUPS I TO III OF THE PERIODIC TABLE AND A CRYSTALLINE HALIDE OF A REDUCED METAL OF GROUPS IV-B, V-B OR VI-B OF THE PERIODIC TABLE DEPOSITED ON A PULVERULENT SUPPORT. THE REDUCED METAL HALIDE IS OBTAINED BY REDUCING A HALIDE OF THE METAL AT ITS MAXIMUM VALENCE WITH AN ORGANOMETALLIC COMPOUND AT A TEMPERATURE BELOW 0*C. AND IN THE ABSENCE OF LIQUID DILUENT. CATALYSTS PREPARED IN THIS MANNER HAVE A HIGH STEROSPECIFICITY AND CATALYTIC ACTIVITY, AND POLYMERICATION CARRIED OUT IN THE PRESENCE THEREOF YIELDS HIGHLY ISOTACTIC CRYSTALLINE POLYMER.

    7.
    发明专利
    未知

    公开(公告)号：DE1770907A1

    公开(公告)日：1972-02-17

    申请号：DE1770907

    申请日：1968-07-18

    Applicant: SOLVAY

    Inventor： DELBOUILLE ANDRE ,  TOUSSAINT HENRI

    IPC: C08F4/68 ,  C08F10/00 ,  C08F3/06

    Abstract: 1,162,079. Stereospecific polymerization. SOLVAY & CIE. 22 July 1968 [31 Aug., 1967], No. 34876/68. Heading C3P. Alpha olefins are stereospecifically polymerized in the presence of a solid catalyst coinprising a combination of an organic comprund of a metal of group 1, 2 or 3 of the Periodic Table and a reduced crystalline halide of a metal of group 4A, 5A or 6A deposited on an inert porous solid support, wherein the halide is obtained by reducing, under an anhydrous and oxygen-free atmosphere at a temperature lower than 0‹ C. in the absence of any liquid diluent, a halide of a group 4A, 5A or 6A metal in its maximum valence state, by means of an organolithium compound which may be the same as the one forming the polymerization catalyst, the quantities of support, unreduced halide and organometallic compound being such that during reduction, the volume of reactants is not higher than the total volume of the pores which could absorb the reactants so that the mixture is maintained pulverulent. The reduceable halide may be titanium or vanadium tetrachloride, the reducing agent may be a trialkyl or halo-alkyl aluminium, the support may be alumina, silica, an aluminum silicate, a magnesium silicate, magnesia, titania or a polyolefin, and the alpha-olefin may be ethylene, propylene, butene-1, pentene-1, methyl butene-1, hexene-1, 3- or 4-methyl pentene-1, a C 1-12 olefin or styrene. In the examples, titanium tetrachloride, deposited on various supports, is reduced with aluminium diethyl chloride, aluminium ethyl dichloride or aluminium diisobutyl chloride, and the resultant catalyst, activated with aluminium diethyl chloride, is used to polymerize propylene, 4-methyl pentene-1, or butene-1, to polymers of a high isotactic content.

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