知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.08 seconds)

    Process for the production of polypropylene from propane
    2.
    发明申请
    Process for the production of polypropylene from propane 审中-公开
    从丙烷生产聚丙烯的方法

    公开(公告)号：US20070112159A1

    公开(公告)日：2007-05-17

    申请号：US11442606

    申请日：2006-05-30

    Applicant: Heinz Boelt ,  Peter Fritz ,  Peter Ulbrich

    Inventor： Heinz Boelt ,  Peter Fritz ,  Peter Ulbrich

    IPC: C08F110/06

    CPC classification number: C08F10/06 ,  C08F4/60

    Abstract: The invention relates to a process for the production of polypropylene with a propane-dehydrogenation stage and a polymerization stage, whereby a degassing stream is obtained, characterized in that the degassing stream is used as a feedstock stream for the propane-dehydrogenation stage.

    Abstract translation: 本发明涉及一种生产具有丙烷脱氢阶段和聚合阶段的聚丙烯的方法，由此得到脱气流，其特征在于，脱气流用作丙烷脱氢阶段的原料流。

    Process for polymerization and copolymerization of olefins
    4.
    发明授权
    Process for polymerization and copolymerization of olefins 失效
    烯烃聚合和共聚方法

    公开(公告)号：US5955554A

    公开(公告)日：1999-09-21

    申请号：US856192

    申请日：1997-05-14

    Applicant: Swaminathan Sivaram ,  Soumen Sensarma

    Inventor： Swaminathan Sivaram ,  Soumen Sensarma

    IPC: C08F4/60 ,  C08F4/619 ,  C08F4/642 ,  C08F4/654 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F5/49

    CPC classification number: C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F4/60 ,  C08F4/61912 ,  C08F4/65912 ,  C08F4/65925

    Abstract: The invention relates to a process for the polymerization and co-polymerization of olefins, which comprises polymerizing/copolymerizing olefins in presence of a solvent, a supported metallocene catalyst and an aluminoxane as cocatalyst in a hydrocarbon medium, at a temperature in the range of 50 to 150.degree. C., at a pressure ranging between 1 to 20 bar, for a period of 10 minutes to 10 hours, scavenging the reaction mixture by addition of an organoaluminum compound to remove the last traces of impurities of solvent, separating the polymer by conventional method like, washing the polymer with an organic solvent and drying the polymer to remove the solvent to obtain the product.

    Abstract translation: 本发明涉及烯烃的聚合和共聚方法，该方法包括在溶剂，负载金属茂催化剂和铝氧烷作为助催化剂存在下在烃介质中在50℃的温度范围内使烯烃聚合/共聚 150℃，压力为1至20巴，持续10分钟至10小时，通过加入有机铝化合物清除反应混合物以除去最后痕量的溶剂杂质，将聚合物分离 如常规方法，用有机溶剂洗涤聚合物并干燥聚合物以除去溶剂以获得产物。

    Process for preparing alternating copolymers of butadiene and alphaolefins
    6.
    发明授权
    Process for preparing alternating copolymers of butadiene and alphaolefins 失效
    制备丁二烯和二羟甲基纤维素交替共聚物的方法

    公开(公告)号：US3824224A

    公开(公告)日：1974-07-16

    申请号：US25959372

    申请日：1972-06-05

    Applicant: MARUZEN PETROCHEM CO LTD

    Inventor： KAWASAKI A ,  MARUYAMA I

    IPC: C08F210/00 ,  C08F236/04 ,  C08F236/06 ,  C08D1/14 ,  C08D3/02 ,  C08D3/06

    CPC classification number: C08F236/04 ,  C08F210/00 ,  C08F236/06 ,  C08F4/68 ,  C08F4/60 ,  C08F4/685 ,  C08F4/695 ,  C08F4/64 ,  C08F4/025

    Abstract: A PROCESS FOR PREPARING AN ALTERNATING COPOLYMER OF BUTADIENE AND A-OLEFINE HAVING THE FORMULA O CH2=CHR, WHEREIN R REPRESENTS PHENYL OR A NORMAL OR BRANCHED CHAIN LOWER ALKYL RADICAL, WHICH COMPRISES CONTACTING BUTADIENE AND THE A-OLEFINE IN LIQUID PHASE WITH A CATALYST SYSTEM OF AN ORGANOALUMINUM COMPOUND, A VANADIUM COMPOUND HAVING V-X LINKAGE (X IS HALOGEN) AND A COMPOUND HAVING M-OR LINKAGE (M IS AN ATOM WHOSE ELECTRO NEGATIVITY (H. O. PRITCHARD, CHEM, REV., 55, 745 (1955)) IS LOWER THAN 2.2 AND R IS A HYDROCARBON RADICAL O ALKYL, ARYL, CYCLOALKYL KOR HALOGENATED ETHER RADICAL) OR A COMPOUND HAVING (O-M)X-(0-M'')Y-OR LINKAGE (M IS DEFINED AS ABOVE AND M'' CAN BE DEFINED BY THE SAME DEFINITION GIVEN IN M). OPTIONALLY A HALOGEN ATOM, A HALOGEN CONTAINING COMPOUND, A METAL OXIDE OR A METALLOID OXIDE CAN BE ADDED TO THE ABOVE MENTIONED THREE COMPONENT CATAYAST SYSTEM AS THE FOURTH COMPONENT TO FURTHER IMPROVE THE CATALYTIC PROPERTIES. THE ALTERNATING COPOLYMERS OBTAINED BY THIS INVENTION ARE RUBBER-LIKE IN CHARACTER AND CAN BE USED AS POLYMERIC PLASTICIZERS IN ADHESIVES AND CAN BE VULCANIZED WITH SULFUR OR A SULFUR COMPOUND TO PRODUCE VULCANIZED ELASTOMERS.

Patent Agency Ranking