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    51.
    发明专利
    未知

    公开(公告)号：FI961470A

    公开(公告)日：1996-04-01

    申请号：FI961470

    申请日：1996-04-01

    Applicant: BASF AG

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

    IPC: C08F10/00 ,  C08F210/02 ,  C10L1/22 ,  C10L1/236 ,  C10L10/14 ,  C08F

    Abstract: PCT No. PCT/EP94/03179 Sec. 371 Date Apr. 2, 1996 Sec. 102(e) Date Apr. 2, 1996 PCT Filed Sep. 23, 1994 PCT Pub. No. WO95/09877 PCT Pub. Date Apr. 13, 1995An ethylene-based copolymer which is suitable as a flow improver for mineral oil middle distillates and is composed of a) from 50 to 94% by weight of ethylene; b) from 3 to 30% by weight of one or more vinyl esters of C2-C6-monocarboxylic acids; c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the formula I (I) which R1 is hydrogen or methyl, R2 and R3 are identical or different and are each hydrogen or C1-C6-alkyl and A1 is straight-chain or branched C2-C10-alkylene; and d) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), wherein copolymers containing vinyl acetate as monomer b) and having a number average molecular weight of from 5,000 to 50,000 are excluded from the scope of the copolymer.

    ETHYLENE-BASED COPOLYMERS AND THEIR USE AS VISCOSITY IMPROVERS IN PETROLEUM DISTILLATES
    52.
    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.

    53.
    发明专利
    未知

    公开(公告)号：AT363464T

    公开(公告)日：2007-06-15

    申请号：AT02710816

    申请日：2002-01-29

    Applicant: BASF AG

    Inventor： HAAKE MATHIAS ,  SCHWAB EKKEHARD ,  KOCH MICHAEL ,  MUELLER HANS-JOACHIM ,  STROEZEL MANFRED ,  PETERSEN HERMANN ,  SCHREYER PETER

    IPC: C07C51/487 ,  B01J21/18 ,  B01J23/44 ,  B01J32/00 ,  B01J35/02 ,  B01J35/06 ,  B01J35/10 ,  C07B35/02 ,  C07C29/17 ,  C07C63/26

    Abstract: A process for the purification of crude terephthalic acid comprises catalytic hydrogenation using a catalyst material (I) comprising a ca bon supported hydrogenation metal whereby the carbon support comprises carbon fibers. Independent claims are included for: (1) the catalyst material (I) whereby the carbon support has a BET surface area of less than 500 Micro 2>/g; (2) a reactor (II) containing a flat catalyst material in the form of cloth, textile and/or felt comprising a hydrogenation metal applied to carbon fibers and having at least two edges opposite to each other to which the catalyst material is stably affixed or containing the catalyst material in the form of parallel fibers or bands; and (3) a process for the selective hydrogenation of carbon-carbon double or triple bonds and/or hydrogenatable functional groups using the catalyst material (I) or reactor (II).

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