Pour improvers for fuel oils
    8.
    发明授权
    Pour improvers for fuel oils 失效
    燃油改进

    公开(公告)号:US3679380A

    公开(公告)日:1972-07-25

    申请号:US3679380D

    申请日:1971-03-01

    申请人: DU PONT

    IPC分类号: C10L1/16

    CPC分类号: C10L1/1666

    摘要: MIDDLE DISTILLATE FUEL OIL COMPOSITIONS CONTAINING AN EFFECTIVE AMOUNT OF A POUR IMPROVER CONSISTING OF A SOLUBLE, SUBSTANTIALLY LINEAR, ETHYLENE COPOLYMER CONSISTING OF, ON A WEIGHT BASIS, 58 TO 68% POLUMERIZED ETHYLENE UNITS, 32 TO 42% POLYMERIZED PROPYLENE UNITS, AND UP TO 10% POLYMERIZED 1,4-HEXADIENE UNITS, SAID COPOLYMER HAVING AN INHERENT VISCOSITY IN TETRACHLOROETHYLENE AT 30*C. OF ABOUT 0.1 TO 0.45, A NUMBER AVERAGE MOLECULAR WEIGHT OF ABOUT 1,000 TO 10,000 AND A MOLECULAR WEIGHT DISTRIBUTION OF LESS THAN ABOUT 8.