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    Process for the preparation of high molecular weight, high unsaturation isobutylene-conjugated diene copolymers
    1.
    发明授权
    Process for the preparation of high molecular weight, high unsaturation isobutylene-conjugated diene copolymers 失效
    制备高分子量，高不饱和度的异丁烯共聚二烯共聚物的方法

    公开(公告)号：US3856763A

    公开(公告)日：1974-12-24

    申请号：US34867873

    申请日：1973-04-06

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： THALER W ,  BUCKLEY D ,  KENNEDY J

    IPC分类号： C08F210/12 ,  C08L23/22 ,  C08D1/04 ,  C08F1/72

    CPC分类号： C08L23/22 ,  C08F210/12 ,  C08F4/14

    摘要： A process for preparing substantially gel-free, high molecular weight, high unsaturation copolymers of an isoolefin and conjugated diolefins having a number average molecular weight of at least 120,000 and a mole percent of unsaturation of at least 5 percent which comprises carrying out the polymerization in a homogeneous phase, introducing the catalyst comprising a hydrocarbyl aluminum dihalide and carrying out the reaction at a temperature of less than -100*C.

    摘要翻译： 一种制备数均分子量至少为120,000，不饱和摩尔百分数至少为5％的异烯烃和共轭二烯的基本上无凝胶，高分子量，高不饱和度共聚物的方法，包括进行聚合反应 引入包含烃基二卤化铝的催化剂并在小于-100℃的温度下进行反应的均相

    Process for the polymerization of conjugated diolefins
    3.
    发明授权
    Process for the polymerization of conjugated diolefins 失效
    聚合二烯的聚合方法

    公开(公告)号：US3732195A

    公开(公告)日：1973-05-08

    申请号：US3732195D

    申请日：1971-06-21

    申请人： GOODYEAR TIRE & RUBBER

    发明人： THROCKMORTON M

    IPC分类号： C08F36/06 ,  C08D1/04

    CPC分类号： C08F36/06 ,  C08F4/7098

    摘要： THERE IS DISCLOSED A PROCESS FOR THE POLYMERIZATION OF BUTADIENE AND BUTADIENE IN MIXTURE WITH OTHER CONJUGATED DIOLEFINS TO FORM POLYMERS CONTANING AT LEAST 90 PERCENT OF THE BUTADIENE UNITS IN THE CIS-1,4 CONFIGURATION COMPRISING CONTACTING AT LEAST ONE DIOLEFIN UNDER POLYMERIZATION CONDITIONS WITH A CATALYST COMPRISING (A) AT LEAST ONE ORGANOMETTALLIC COMPOUND, (B) AT LEAST ONE ORGANONICKEL COMPOUND, AND (C) AT LEAST ONE COMPOUND SELECTED FROM A GROUP CONSISTING OF METAL FLUOROBORATES, METAL FLUOROPHOSPHATES, METAL FLUOROANTIMONATES AND ORGANIC DERIVATIVES OF FLUOROPHOSPHATES AND FLUOROANTIMONATES WHEREIN THEMETAL IS SELECTED FROM A GROUP CONSISTING OF LITHIUM, BERYLLIUM, CALCIUM, MAGNESIUM, NICKEL AND COBALT.

    Process for the polymerization of conjugated dienes
    7.
    发明授权
    Process for the polymerization of conjugated dienes 失效
    聚合二烯的聚合方法

    公开(公告)号：US3681304A

    公开(公告)日：1972-08-01

    申请号：US3681304D

    申请日：1970-07-29

    申请人： FIRESTONE TIRE & RUBBER CO

    发明人： JOHNSON CHARLES R

    IPC分类号： C08F2/00 ,  C08F36/04 ,  C08D1/04 ,  C08D3/06 ,  C08F19/08

    CPC分类号： C08F36/04 ,  C08F4/48 ,  C08F2/00

    摘要： BUTADIENE AND/OR ISOPRENE,OPTIONALLY WITH STYRENE, ARE POLYMERIZED CONTINUOUSLY BY INTRODUCING AT LEAST PART OF THE MONOMER, HYDROCARBON DILUENT, AND A LITHIUM BASED INITIATOR INTO THE BOTTOM REGION OF AN ELONGATED, VERTICAL, PRESSURIZED REACTION VESSEL. THE MATERIALS ARE AGITATED, AND ADDITIONAL MONOMER, IF ANY, IS INTRODUCED TO THE VESSEL AS THE MATERIALS FLOW FROM THE BOTTOM TO THE TOP OF THE REACTION VESSEL, AND THEN INTO A SECND VESSEL. THE HEAT IS CONTAINED WITHIN THE REACTION VESSEL. A PORTION OF VAPOR IS REMOVED FROM THE SECOND VESSEL TO CONTROL THE PRESSURE WITHIN IT; IN THIS MANNER THE PRESSURE, AND HENCE THE TEMPERATURE IN THE REACTION VESSEL ARE CONTROLLED TO PERMIT SOME BOILING IN THE TOP OF THE REACTION VESSEL. THE BOILING PRODUCES AGITATION, AND THE REMOVAL OF VAPOR RAISES THE SOLIDS CONTENT OF THE MATERIALS. VAPORS REMOVED ARE CONDENSED AND RECYCLED, AND THE REAMINING MATERIAL IS DISHCARGED FROM THE SECOND VESSEL.