MULTIFUNCTIONAL VISCOSITY INDEX IMPROVER AND DISPERSANT
    1.
    发明公开
    MULTIFUNCTIONAL VISCOSITY INDEX IMPROVER AND DISPERSANT 有权
    多功能粘度和分散

    公开(公告)号:EP1432747A1

    公开(公告)日:2004-06-30

    申请号:EP01970900.5

    申请日:2001-09-14

    摘要: A process is disclosed that comprises solution grafting a hydrocarbon polymer prepared from at least C2 to C28 polymerizable hydrocarbon, said polymer having a number average molecular weight in the range of from about 5,000 to about 500,000, with an ethylenically unsaturated C3 to C10 carboxylic acid material, using a free radical initiator, in the presence of an aromatic ester oil of the formula (I) wherein R1, R2, R3, R4, R5, and R6 are independently selected from the group consisting of hydrogen, -COOR7, -COOR8, -COOR9, -COOR10, -COOR11, and -COOR12, provided that no more than 5 of R1, R2, R3, R4, R5 and R6 are hydrogen, and R7, R8, R9, R10, R11, and R12 are independently selected from the group consisting of alkyl and alkylesters.