中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.019 seconds)

    7.
    发明专利
    未知

    公开(公告)号：DE4326772A1

    公开(公告)日：1995-02-16

    申请号：DE4326772

    申请日：1993-08-10

    Applicant: BASF AG

    Inventor： FAUL DIETER DR ,  ROSER JOACHIM DR ,  HARTMANN HEINRICH DR ,  VOGEL HANS-HENNING DR ,  SLOTMAN WILHELMUS ,  KONRAD GERD DR

    IPC: B01D17/04 ,  C08F8/14 ,  C08F220/26 ,  C08F290/06 ,  C08G63/676 ,  C08G65/32 ,  C08G65/332 ,  C09K8/36 ,  C10G33/04 ,  C08F220/04 ,  C08F8/00

    Abstract: PCT No. PCT/EP94/02487 Sec. 371 Date Feb. 7, 1996 Sec. 102(e) Date Feb. 7, 1996 PCT Filed Jul. 28, 1994 PCT Pub. No. WO95/04771 PCT Pub. Date Feb. 16, 1995Reaction products which are suitable as demulsifiers for crude oil emulsions, comprise olefinically unsaturated carboxylic acids and polyetherols and are obtainable by A) condensation of one or more unsaturated C3-C10-carboxylic acids or their derivatives of the general formula I I where R1 and R2 are each hydrogen, C1-C4-alkyl or carboxyl, R3 is hydrogen or methyl and R1 together with the carboxyl group may form a 5-membered or 6-membered anhydride ring, with a polyetherol of the general formula II II where R4 is a radical of a monohydric or polyhydric alcohol or of a phenol or of an alkylphenol of 7 to 30 carbon atoms or a radical of an alkylphenol/formaldehyde or alkylphenol/acetaldehyde condensate, R5 is a branched or straight-chain C2-C4-alkylene group, where different units [R5-O] may be present within a polyalkylene oxide chain, and X is an integer of from 5 to 120, in a molar ratio of compounds II to I of from 2:1 to 10:1 and in a weight ratio of from 25:1 to 1,000:1, B) polymerization of the resulting condensate with one or more unsaturated carboxylic acids I and, if required, further olefinically unsaturated monomers copolymerizable with the carboxylic acids I, the amount of the carboxylic acids I being from 50 to 100 mol %, based on the amount of the olefinically unsaturated monomers, and the molar ratio of the polyetherol II to the sum of the olefinically unsaturated monomers used in process steps A) and B) being from 1:5 to 1:200, and subsequent C) condensation of the resulting reaction mixture, with the proviso that not all hydroxyl groups are converted, and a process for their preparation, mixtures of the reaction products with organic solvents and the use of the reaction products and of the mixtures as demulsifiers for crude oil emulsions.

    8.
    发明专利
    未知

    公开(公告)号：DE19719689A1

    公开(公告)日：1998-11-12

    申请号：DE19719689

    申请日：1997-05-09

    Applicant: BASF AG

    Inventor： FAUL DIETER DR ,  WENDEROTH BERND DR ,  DRALLE-VOSS GABRIELE DR ,  SCHORNICK GUNNAR DR

    IPC: C08F222/00 ,  C08F224/00 ,  C10L1/14 ,  C10L1/18 ,  C10L1/196 ,  C10L1/197 ,  C10L1/22 ,  C10L1/236 ,  C10L1/24 ,  C08F218/04 ,  C08F220/18 ,  C08F220/42

    Abstract: The invention relates to a copolymer from the monomers of constituents A to C as indicated below and optionally D, the total weight of which amounts to 100 mol %: a) 20 to 80 mol % of at least one ethylenically unsaturated dicarboxylic acid or an anhydride, ester and/or amide thereof as constituent A; b) 1 to 79 mol % of at least one diketene of general formula (I), wherein R and R independently means hydrogen or C1-30-alkyl as constituent B; c) 1 to 79 mol % of at least one vinyl ester, (meth)acrylic acid alkyl ester, (meth)acrylnitrile or mixtures thereof as constituent C and d) 0 to less than 0.5 mol %, or when at least 20 mol % of constituent C is provided, 0 to 20 mol % of at least one other olefinically unsaturated monomer as component D. The inventive copolymer is used as a flow enhancer in petroleum middle distillates.

Patent Agency Ranking