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    COPOLYMERISATE AUF ETHYLENBASIS UND IHRE VERWENDUNG ALS FLIESSVERBESSERER IN ERDÖLMITTELDESTILLATEN
    7.
    发明授权
    COPOLYMERISATE AUF ETHYLENBASIS UND IHRE VERWENDUNG ALS FLIESSVERBESSERER IN ERDÖLMITTELDESTILLATEN 失效
    BASIS乙烯的共聚物及它们在油作为流中间馏分

    公开(公告)号：EP0721475B1

    公开(公告)日：1997-04-23

    申请号：EP94927642.2

    申请日：1994-09-23

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： MÜLLER, Hans-Joachim ,  WENDEROTH, Bernd ,  BERGER, Albin ,  LITTMANN, Dieter ,  KLIMESCH, Roger ,  OPPENLÄNDER, Knut ,  MARCZINKE, Bernd, Lothar ,  RÜHL, Thomas ,  HEIDER, Marc

    IPC分类号： C08F210/02

    CPC分类号： C10L1/2366 ,  C08F210/02 ,  C10L1/2368 ,  C08F218/04 ,  C08F220/34 ,  C08F226/06 ,  C08F220/00

    摘要： Ethylene-based copolymers suitable as viscosity improvers for petroleum distillates of a) 50 to 94 wt. % ethylene; b) 3 to 30 wt. % one or more vinyl esters of C2-C6 monocarboxylic acids; c) 3 to 20 wt. % one or more aminoalkylene acrylates of general formula (I) in which R1 is hydrogen or methyl, the radicals R?2 and R3¿ may be the same or different and stand for hydrogen or a C¿1?-C6 alkyl radical and A?1¿ is a straight-chained or branched C¿2?-C10 alkylene radical; and d) 0 to 10 wt. % one or more monomers which can be copolymerised with monomers a) to c), in which such copolymers are excluded in which monomer b) is vinyl acetate and have a number average molecular weight of 5000 to 50000; or of a') 50 to 95.5 wt. % ethylene; b') 4 to 30 wt. % one or more vinyl esters of C2-C6 monocarboxylic acids; c') 0.5 to 20 wt. % one or more vinyl imidazoles of general formula (II) in which the radicals R?4, R5 and R6¿ may be the same or different and are hydrogen or a C¿1?-C6 alkyl radical, or 0.5 to 20 wt. % one or more aminoalkyl vinyl ethers of general formula (III) in which the substituents are: R?7, R8: C¿1-C6 alkyl; R?9, R10, R11¿: hydrogen or C¿1?-C6 alkyl; A?2: C¿2-C6 alkylene; and d') 0 to 10 wt. % one or more monomers which can be copolymerised with monomers a') to c'). The invention also relates to the use of these copolymers as viscosity improvers for petroleum middle distillates and to pretroleum distillates containing them.

    COPOLYMERISATE AUF ETHYLENBASIS UND IHRE VERWENDUNG ALS FLIESSVERBESSERER IN ERDÖLMITTELDESTILLATEN
    9.
    发明公开
    COPOLYMERISATE AUF ETHYLENBASIS UND IHRE VERWENDUNG ALS FLIESSVERBESSERER IN ERDÖLMITTELDESTILLATEN 失效
    BASIS乙烯的共聚物及它们在油作为流中间馏分

    公开(公告)号：EP0721475A1

    公开(公告)日：1996-07-17

    申请号：EP94927642.0

    申请日：1994-09-23

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： MÜLLER, Hans-Joachim ,  WENDEROTH, Bernd ,  BERGER, Albin ,  LITTMANN, Dieter ,  KLIMESCH, Roger ,  OPPENLÄNDER, Knut ,  MARCZINKE, Bernd, Lothar ,  RÜHL, Thomas ,  HEIDER, Marc

    IPC分类号： C08F10 ,  C08F210 ,  C10L1 ,  C10L10

    CPC分类号： C10L1/2366 ,  C08F210/02 ,  C10L1/2368 ,  C08F218/04 ,  C08F220/34 ,  C08F226/06 ,  C08F220/00

    摘要： Ethylene-based copolymers suitable as viscosity improvers for petroleum distillates of a) 50 to 94 wt. % ethylene; b) 3 to 30 wt. % one or more vinyl esters of C2-C6 monocarboxylic acids; c) 3 to 20 wt. % one or more aminoalkylene acrylates of general formula (I) in which R1 is hydrogen or methyl, the radicals R?2 and R3¿ may be the same or different and stand for hydrogen or a C¿1?-C6 alkyl radical and A?1¿ is a straight-chained or branched C¿2?-C10 alkylene radical; and d) 0 to 10 wt. % one or more monomers which can be copolymerised with monomers a) to c), in which such copolymers are excluded in which monomer b) is vinyl acetate and have a number average molecular weight of 5000 to 50000; or of a') 50 to 95.5 wt. % ethylene; b') 4 to 30 wt. % one or more vinyl esters of C2-C6 monocarboxylic acids; c') 0.5 to 20 wt. % one or more vinyl imidazoles of general formula (II) in which the radicals R?4, R5 and R6¿ may be the same or different and are hydrogen or a C¿1?-C6 alkyl radical, or 0.5 to 20 wt. % one or more aminoalkyl vinyl ethers of general formula (III) in which the substituents are: R?7, R8: C¿1-C6 alkyl; R?9, R10, R11¿: hydrogen or C¿1?-C6 alkyl; A?2: C¿2-C6 alkylene; and d') 0 to 10 wt. % one or more monomers which can be copolymerised with monomers a') to c'). The invention also relates to the use of these copolymers as viscosity improvers for petroleum middle distillates and to pretroleum distillates containing them.