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    Process for converting toluent to benzene and xylenes
    1.
    发明授权
    Process for converting toluent to benzene and xylenes 失效
    将固体转化成苯胺和二甲苯的方法

    公开(公告)号：US3597490A

    公开(公告)日：1971-08-03

    申请号：US3597490D

    申请日：1968-05-27

    申请人： TOYO RAYON CO LTD

    发明人： OTANI SEIYA ,  IWAMURA TAKAO ,  HAYASHI SHOTARO ,  OGAWA DAISUKE

    IPC分类号： C07C6/12 ,  C07C3/00 ,  C07C3/58 ,  C07C15/08

    CPC分类号： C07C6/123

    摘要： IN THE CONVERSION OF TOLUENE TO BENZENE AND XYLENES BY CONTACTING TOLUENE WITH A DISPROPORTIONATION CATALYST AT A TEMPERATURE OF FROM 300 TO 650* C. UNDER A PRESSURE OF FROM 1 TO 100 ATMOSPHERES IN THE PRESENCE OF HYDROGEN, AN IMPROVEMENT WHICH COMPRISES CONTACTING TOLUENE WITH SAID CATALYST IN THE PRESENCE OF 0.5 TO 50 MOL PERCENT BASED ON THE TOLUENE OF A C9 AROMATIC HYDROCARBON, E.G., RECYCLE OF TRIMETHYLBENZENES. LIKEWISE, UNWANTED C8 ISOMER M-XYLENE MAY BE SUPPLIED ALONG WITH THE FEED TOLUENE.

    Composite filament
    2.
    发明授权
    Composite filament 失效

    公开(公告)号：US3594266A

    公开(公告)日：1971-07-20

    申请号：US3594266D

    申请日：1968-05-21

    申请人： TOYO RAYON CO LTD

    发明人： OKAZAKI KAORU ,  SHIMOKAWA YOICHI

    IPC分类号： C08L77/00 ,  D01F8/12 ,  D02G3/02

    CPC分类号： D01F8/12 ,  C08L77/00 ,  Y10T428/2931 ,  Y10T428/2969 ,  C08L87/005 ,  C08L2666/22

    摘要： COMPOSITE POLYAMIDE FILAMENT HAVING IMPROVED ANTISTATIC PROPERTIES, WHEREIN ONE OF THE COMPONENTS IS COMPOSED OF SYNTHETIC POLYAMIDES, AND ANOTHER COMPOSED OF A POLYMER BLEND OF A POLYAMIDE AND A BLOCK-COPOLYETHERAMIDE. THE BLOCK-COPOLYETHERAMIDE COMPRISES 15 TO 85%, PREFERABLY ABOUT 20 TO 60% BY WEIGHT OF POLYETHER SEGMENTS, WHICH SEGMENTS SHOULD PRESENT IN AN AMOUNT OF 0.1 TO 10%, PREFERABLY ABOUT 0.3 TO 5% BY WEIGHT BASED ON THE COMPOSITE FILAMENT. IT IS ADVANTAGEOUS THAT EACH OF THE POLYETHER SEGMENTS CONTAINS ABOUT 45 TO 130 ETHER OXYGEN ATOMS.