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    21.
    发明专利
    未知

    公开(公告)号：ES2140206T3

    公开(公告)日：2000-02-16

    申请号：ES97903264

    申请日：1997-02-13

    Applicant: BASF AG

    Inventor： MESZAROS LADISLAUS ,  GILLICH MICHAEL ,  PFITZNER KLAUS ,  OPPENLANDER KNUT ,  GUNTHER WOLFGANG

    IPC: C07D233/60 ,  C09K5/00 ,  C09K5/20 ,  C23F1/14 ,  C23F11/08 ,  C23F11/14 ,  C23G1/06

    Abstract: PCT No. PCT/EP97/00648 Sec. 371 Date Aug. 11, 1998 Sec. 102(e) Date Aug. 11, 1998 PCT Filed Feb. 13, 1997 PCT Pub. No. WO97/30133 PCT Pub. Date Aug. 21, 1997Quaternized imidazoles I in which R1 and R3 independently of one another are saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens, R2, R4 and R5 independently of one another are hydrogen or saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens, it being possible for R4 and R5, together with the corresponding imidazole carbons, to form a five- or six-membered ring, and X(-) is an anion, are used as corrosion inhibitors in the corrosion protection of nonferrous metals, especially for car radiator protection.

    24.
    发明专利
    未知

    公开(公告)号：NO965114L

    公开(公告)日：1996-12-02

    申请号：NO965114

    申请日：1996-11-29

    Applicant: BASF AG

    Inventor： KNAUF WOLFGANG ,  OPPENLANDER KNUT ,  SLOTMAN WILHEMUS

    IPC: B01D17/04 ,  B01D17/05 ,  C10G33/04

    Abstract: PCT No. PCT/EP95/01901 Sec. 371 Date Dec. 2, 1996 Sec. 102(e) Date Dec. 2, 1996 PCT Filed May 19, 1995 PCT Pub. No. WO95/33018 PCT Pub. Date Dec. 7, 1995Water is separated from crude oil by a process in which the oil demulsifier used is a mixture of A) compounds which have demulsifying activity and are of the structure type of the (a) polyethyleneimine alkoxylate, (b) mono- or oligoamine alkoxylate, (c) alkoxylated alkylphenol/formaldehyde resins, (d) alkoxylated amine-modified alkylphenol/formaldehyde resins, (e) co- or terpolymers of alkoxylated acrylates or methacrylates with vinyl compounds, (f) condensates of mono- or oligoamine alkoxylates, dicarboxylic acids and alkylene oxide block copolymers, where these condensates may furthermore be completely or partially quaternized at the nitrogen atoms, or (g) compounds (a) to (f) reacted with crosslinking agents and B) as a demulsifying assistant, a polyalkylene glycol ether which has no demulsifying activity and is of the general formula I or IIR1[(OA1)a-OH]n(I)H-(OA1)b-(OA2)c-(OA3)d-OH(II)where R1 is a monovalent to decavalent C1-C20 alkyl group, phenyl group or alkylphenyl group where the alkyl radical is of 1 to 20 carbon atoms, A1 to A3 are each a 1,2-alkylene group of 2 to 4 carbon atoms or a phenylethylene group, n is from 1 to 10, a is from 1 to 50 and b, c and d are each from 0 to 50, the sum b+c+d being greater than 3.

    Process for producing oligoamines or polyamines
    27.
    发明专利
    Process for producing oligoamines or polyamines 未知

    公开(公告)号：AU3742595A

    公开(公告)日：1996-05-02

    申请号：AU3742595

    申请日：1995-09-26

    Applicant: BASF AG

    Inventor： MOHR JURGEN ,  KNAUF WOLFGANG ,  BALZER WOLF-DIETER ,  OPPENLANDER KNUT ,  SLOTMAN WILHELMUS

    IPC: C10G21/28 ,  B01D17/04 ,  C07C213/04 ,  C08F8/00 ,  C08G65/26 ,  C08G73/02 ,  C08G73/04 ,  C10G33/04

    Abstract: PCT No. PCT/EP95/03809 Sec. 371 Date Apr. 7, 1997 Sec. 102(e) Date Apr. 7, 1997 PCT Filed Sep. 26, 1995 PCT Pub. No. WO96/11225 PCT Pub. Date Apr. 18, 1996The preparation of alkoxylates of oligoamines or polyamines by a two-stage procedure where, in the first stage, one molecule of alkylene oxide per NH group is added onto the oligoamines or polyamines in the presence of water, alcohols or acids or a mixture thereof in the absence of a neutral or basic catalyst and, in the second stage, after removal of water and acids reaction with further alkylene oxide is carried out in the presence of a conventional neutral or basic catalyst, entails, before the second stage is carried out, an organic solvent or diluent or a mixture thereof from the group of (a) alcohols and phenols and their alkoxylates, (b) polyalcohols based on ethylene oxide, propylene oxide, butylene oxide or a mixture thereof, (c) N-substituted carboxamides, (d) alkanolmonoamines and alkanolpolyamines and their alkoxylates, (e) other alkoxylates of oligoamines or polyamines, (f) aromatic hydrocarbons, (g) aliphatic hydrocarbons, (h) ethers and (i) sulfones or sulfoxides being added.

    ETHYLENE-BASED COPOLYMERS AND THEIR USE AS VISCOSITY IMPROVERS IN PETROLEUM DISTILLATES
    30.
    发明专利
    ETHYLENE-BASED COPOLYMERS AND THEIR USE AS VISCOSITY IMPROVERS IN PETROLEUM DISTILLATES 未知

    公开(公告)号：CA2170744A1

    公开(公告)日：1995-04-13

    申请号：CA2170744

    申请日：1994-09-23

    Applicant: BASF AG

    Inventor： MUELLER HANS-JOACHIM ,  WENDEROTH BERND ,  BERGER ALBIN ,  LITTMANN DIETER ,  KLIMESCH ROGER ,  OPPENLANDER KNUT ,  MARCZINKE BERND LOTHAR ,  RUEHL THOMAS ,  HEIDER MARC

    IPC: C08F10/00 ,  C08F210/02 ,  C10L1/22 ,  C10L1/236 ,  C10L10/14 ,  C10L1/14

    Abstract: 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 R2 and R3 may be the same or different and stand for hydrogen or a C1-C6 alkyl radical and A1 is a straight-chained or branched C2C10 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 R4, R5 and R6 may be the same or different and are hydrogen or a C1-C6 alkyl radical, or 0.5 to 20 wt. % one or more aminoalkyl vinyl ethers of general formula (III) in which the substituents are: R7, R8: C1-C6 alkyl; R9, R10, R11: hydrogen or C1-C6 alkyl; A2: C2-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.

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