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149 条记录 (耗时 0.013 秒)

    Process for polymerizing olefins
    2.
    发明授权
    Process for polymerizing olefins 失效
    聚烯烃的方法

    公开(公告)号：US3843619A

    公开(公告)日：1974-10-22

    申请号：US27940472

    申请日：1972-08-10

    申请人： SIR SOC ITALIANA RESINE SPA

    发明人： CALCAGNO B ,  COLOMBO P

    IPC分类号： C08F10/00 ,  C08F110/00 ,  C08F1/56

    CPC分类号： C08F110/00 ,  C08F10/00 ,  C08F4/42

    摘要： A process for polymerizing olefins, particularly ethylene, is disclosed which utilizes a mixed catalyst system of the Zeigler type containing a reduced amount of transition metal compound in order to alleviate contamination of the polymer produced, and also containing certain types of unsaturated ketones which permits the reduction of the amount of the transition metal compound while increasing the activity of the catalyst.

    Process for the polymerization of olefins
    3.
    发明授权
    Process for the polymerization of olefins 失效
    烯烃聚合方法

    公开(公告)号：US3784539A

    公开(公告)日：1974-01-08

    申请号：US3784539D

    申请日：1971-09-07

    申请人： MONSANTO CO

    发明人： ORT M

    IPC分类号： C08F4/70 ,  C08F10/00 ,  B01J11/84 ,  C08F1/56 ,  C08F3/06

    CPC分类号： C08F10/00 ,  Y02P20/582 ,  Y10S526/905 ,  Y10S526/907 ,  C08F4/622

    摘要： OLEFINES ARE POLYMERIZED IN THE PRESENCE OF HYDROGEN AS A MOLCULAR WEIGHT CONTROL AGENT WITH A ZIEGLER-TYPE CATALYST COMPOSITION COMPRISING A MIXTURE OF A COMPOUND OF VANADIUM AND A REDUCING AGENT WHICH IS AN ORGANOALUMINUM COMPOUND AND AN ALKALYALUMINUM ALKOXIDE, SAID COMPOSITION BEING PREPARED BY COMBINING SAID COMPONENTS IN SUCH ORDER THAT SAID ALUMINUM ALKOXIDE IS PRESENT PRIOR TO COMBINATION OF SAID VANADIUM COMPOUND WITH SAID ORGANOALUMINUM COMPOUND. THE CATALYST SO PREPARED ENHANCES THE ABILITY OF HYDROGEN TO ACT AS A CHAIN-TRANSFER AGENT IN CONTROLLING MOLECULAR WEIGHT, THAT IS, LOWER MOLECULAR WEIGHT POLYMERS CAN BE PRODUCED AT A GIVEN HYDROGEN CONCENTRATION OR LESSER AMOUNTS OF HYDROGEN ARE REQUIRED TO PRODUCE POLYMMER PRODUCTS HAVING SPECIFIED MOLECULAR WEIGHTS.

    Process for the polymerization or copolymerization of ethylene and catalyst compositions therefor
    4.
    发明授权
    Process for the polymerization or copolymerization of ethylene and catalyst compositions therefor 失效
    乙烯及其催化剂组合物的聚合或共聚方法

    公开(公告)号：US3745154A

    公开(公告)日：1973-07-10

    申请号：US3745154D

    申请日：1971-08-10

    申请人： MITSUI PETROCHEMICAL IND

    发明人： KASHIWA N

    IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/68 ,  C08F10/02 ,  C08F1/56 ,  C08F3/06

    CPC分类号： C08F10/02 ,  C08F4/685

    摘要： A PROCESS FOR THE POLYMERIZATION OF ETHYLENE OR COPOLYMERIZATION OF ETHYLENE WITH ANOTHER OLEFIN IN THE PRESENCE OF A SPECIFICALLY DEFINED CATALYST, AS WELL AS SUCH CATALYST PER SE, THE CATALYST COMPRISING (A) A CARRIER-SUPPORTED TRANSISTION METAL COMPOUND CATALYST COMPONENT, THE CATALYST COMPONENT BEING OBTAINED BY (A) ADDING TO A HYDROCARBON SOLVENT A FINELY DIVIDED SOLID INORGANIC COMPOUND CARRIER OF MAGNESIUM OR CALCIUM AND 0.05-10 MILLIMOLS PER GRAM OF THE INORGANIC COMPOUND OF AN ORGANOALUMINUM COMPOUND, THE INORGANIC COMPOUND CARRIER BEING INSOLUBLE IN THE HYDROCARBON SOLVENT, (B) ADDING TO THE RESULTING MIXTURE A HALIDE OF VANADIUM AND A HALIDE OF TITANIUM, THE HALIDE OF TITANIUM BEING ADDED IN AN AMOUNT OF NOT MORE THAN 5 MOLS PER MOL OF THE HALIDE OF VANADIUM, THE SUM TOTAL NUMBER OF MOLS OF VANADIUM AND TITANIUM BEING IN THE RANGE OF 0.001-1 MOL PER MOL OF THE ORGANIC GROUPS OF THE ALUMINUM COMPOUND OF (A), ABOVE, AND (C) REACTING THE SO-FORMED LIQUID SYSTEM CONTAINING FINELY DIVIDED SOLID INORGANIC COMPOUND CARRIER UNTIL SUBSTANTIALLY NO FREE TITANIUM AND VANADIUM COMPOUNDS ARE DETECTED IN THE LIQUID PHASE OF THE SYSTEM; AND (B) AN ORGANOALUMINUM COMPOUND CATALYST COMPONENT.

    Method of ethylene polymerization
    6.
    发明授权
    Method of ethylene polymerization 失效
    乙烯聚合方法

    公开(公告)号：US3721721A

    公开(公告)日：1973-03-20

    申请号：US3721721D

    申请日：1971-04-15

    申请人： SUMITOMO CHEMICAL CO

    发明人： MAEMOTO K ,  SANO T ,  KOBAYASHI A

    IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/68 ,  C08F10/02 ,  C08F1/56 ,  C08F3/06

    CPC分类号： C08F10/02 ,  C08F4/68

    摘要： AN ETHYLENE POLYMER HAVING OPTIONAL MOLECULAR WEIGHT DISTRIBUTION FROM NARROW TO BROAD IS EASILY PRODUCED IN GOOD SLURRY STATE, IN HIGH SOLVENT EFFICIENCY AND IN HIGH CATALYST EFFICIENCY, BY POLYMERIZING ETHYLENE ALONE OR TOGETHER WITH OTHER UNSATURATED HYDROCARBON IN THE PRESENCE OR ABSENCE OF HYDROGEN, USING A CATALYST COMPRISING (1) AS A FIRST COMPONENT A SUBSTANCE PREPARED BY A METHOD WHICH COMPRISES REACTING A VANADIUM COMPOUND WITH A PHOSPHORIC ACID AND/OR ITS DERIVATIVE, TREATING THE REACTION PRODUCT WITH AN ALCOHOL, SEPARATING FROM THE ALCOHOL-TREATED PRODUCT AN ALCOHOL SOLUBLE PRODUCT IN THE FORM OF A SOLID AND ADDING 1 TO 20% BY WEIGHT OF WATER TO SAID SOLID ALCOHOL SOLUBLE PRODUCT AND (2) AS A SECOND COMPONENT A SUBSTANCE COMPOSED MAINLY OF AN ORGANO-ALUMINUM COMPOUND HAVING THE FORMULA,

    RNA1X3-N

    WHEREIN R IS A HYDROCARBON GROUP HAVING 1 TO 8 CARBON ATOMS; X IS A HALOGEN ATOM, AN ALKOXY GROUP OR A HYDROGEN ATOM; AND N IS A POSITIVE NUMBER OF 3 OR LESS.

    Polymerization of cyclopentene
    7.
    发明授权
    Polymerization of cyclopentene 失效
    环糊精的聚合

    公开(公告)号：US3719652A

    公开(公告)日：1973-03-06

    申请号：US3719652D

    申请日：1971-05-05

    申请人： BAYER AG

    发明人： OBERKIRCH W ,  PAMPUS G ,  GUNTHER P

    IPC分类号： C08F2/00 ,  C08G61/08 ,  C08F1/56

    CPC分类号： C08G61/08

    摘要： Process for producing cyclopentene polymers which comprises contacting cyclopentene at a temperature of from -60* to +60*C with a catalyst comprising A TANTALUM COMPOUND (I) a halogen compound (II) an organo-aluminum compound (III) the components being in a molar ratio of I : II : III 1 : 0.310 : 0.5-15.

    Process for the polymerization of alpha-olefins
    9.
    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

    申请人： SOLVAY

    发明人： DELBOUILLE ANDRE ,  TOUSSAINT HENRI

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

    CPC分类号： C08F10/00 ,  Y10S526/904 ,  C08F4/655

    摘要： 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.