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    81.
    发明专利
    未知

    公开(公告)号：DE59001439D1

    公开(公告)日：1993-06-17

    申请号：DE59001439

    申请日：1990-10-15

    Applicant: BASF AG

    Inventor： SCHUSTER LUDWIG DR ,  VOGES DIETER DR

    IPC: C01G55/00

    Abstract: Ruthenium tetroxide is obtained by oxidation of an alkali metal ruthenate in aqueous solution. The oxidizing agent used is ozone. The oxidation is carried out at a pH greater than or equal to 8.

    2,2-Di:substd. pentane-1,5-di:amine(s) prodn.
    83.
    发明专利
    2,2-Di:substd. pentane-1,5-di:amine(s) prodn. 未知

    公开(公告)号：DE4106340A1

    公开(公告)日：1992-09-03

    申请号：DE4106340

    申请日：1991-02-28

    Applicant: BASF AG

    Inventor： MERGER FRANZ DR ,  PRIESTER CLAUS-ULRICH DR ,  WITZEL TOM DR ,  KOPPENHOEFER GERHARD DR ,  SCHUSTER LUDWIG DR

    IPC: C07C209/48 ,  C07C211/09

    Abstract: New 2,2-disubstituted pentane-1,5-diamines of formula H2N-(CH2)3-C(R1)(R2)-CH2NH2 (I) (in which R1 and R2 independently = 1-10C alkyl or 2-10C alkenyl or R1 and R2 together form a 4-7C alkylene chain which is opt. substd. by 1-5 1-4C alkyl gps), are prepd. from 2,2-disubstituted 4-cyano-butanals of formula NC-(CH2)2-C(R1)(R2)-CH=O (II) by (a) reacting the (II) in a first reaction chamber with excess ammonia over an a acidic heterogeneous catalyst at temps. of 20-150 deg.C and a pressure of 15-500 bar, and (b) hydrogenating the reaction prods. in a second reaction chamber with hydrogen in the presence of excess ammonia over Co-, Ni-, Ru- and/or other noble metal contg. catalysts, opt. with basic components or on basic or neutral carriers, at temps. of 60-150 deg. C and a press. of 50-500 bar. Pref. in (I) R1 and R2 are both both Me. Claimed cpds. (I) are 2-methyl-2-n-propyl- pentane-1,5-diamine (Ia), 2-n-butyl-2-ethyl-pentane-1,5-diamine (Ib) and 2-n-propyl-2-n-propyl-pentane-1,5-diamine (Ic).

    2,2-Di:substd. pentane-1,5-di:amine(s) prodn.
    85.
    发明专利
    2,2-Di:substd. pentane-1,5-di:amine(s) prodn. 未知

    公开(公告)号：DE4021726A1

    公开(公告)日：1992-01-09

    申请号：DE4021726

    申请日：1990-07-07

    Applicant: BASF AG

    Inventor： MERGER FANZ DR ,  PRIESTER CLAUS-ULRICH DR ,  WITZEL TOM DR ,  KOPPENHOEFER GERHARD DR ,  SCHUSTER LUDWIG DR

    IPC: C07C209/48 ,  C07C211/09

    Abstract: New 2,2-disubstituted pentane-1,5-diamines of formula H2N-(CH2)3-C(R1)(R2)-CH2NH2 (I) (in which R1 and R2 independently = 1-10C alkyl or 2-10C alkenyl or R1 and R2 together form a 4-7C alkylene chain which is opt. substd. by 1-5 1-4C alkyl gps), are prepd. from 2,2-disubstituted 4-cyano-butanals of formula NC-(CH2)2-C(R1)(R2)-CH=O (II) by (a) reacting the (II) in a first reaction chamber with excess ammonia over an a acidic heterogeneous catalyst at temps. of 20-150 deg.C and a pressure of 15-500 bar, and b) hydrogenating the reaction prods. in a second reaction chamber with hydrogen in the presence of excess ammonia over Co-, Ni-, Ru- and/or other noble metal contg. catalysts, opt. with basic components or on basic or neutral carriers, at temps. of 60-150 deg. C and a press. of 50-500 bar. Pref. in (I) R1 and R2 are both both Me. Claimed cpds. (I) are 2-methyl-2-n-propyl- pentane-1,5-diamine (Ia), 2-n-butyl-2-ethyl-pentane-1,5-diamine (Ib) and 2-n-propyl-2-n-propyl-pentane-1,5-diamine (Ic).

    86.
    发明专利
    未知

    公开(公告)号：DE4014923A1

    公开(公告)日：1991-11-14

    申请号：DE4014923

    申请日：1990-05-10

    Applicant: BASF AG

    Inventor： HENN ROLF DR ,  HINZ WERNER DR ,  SCHUSTER LUDWIG DR ,  VORSPOHL KLAUS DR

    IPC: C08G18/48 ,  C08G65/26 ,  C08G65/28

    Abstract: The invention relates to a process for the production of rigid foams containing urethane or urethane and isocyanurate groups by reacting a) polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyols containing secondary hydroxyl groups, having a functionality of from 3.5 to 4.3, a hydroxyl number of from 350 to 650 and a viscosity of from 500 to 2,500 mPa.s at 23 DEG C, prepared by anionic polymerisation of 1,2-propylene oxide or ethylene oxide and 1,2-propylene oxide onto an initiator molecule mixture containing, based on the total weight, a1) from 40 to 80 % by weight of hexanetetrols, a2) from 1 to 30 % by weight of hexanetriols, a3) from 0 to 35 % by weight of glycerol and a4) from 0 to 15 % by weight of sorbitol or mannitol or mixtures thereof, and b) optionally low-molecular-weight chain extenders and/or crosslinking agents with c) organic, optionally modified polyisocyanates, in the presence of d) blowing agents, e) catalysts and optionally f) assistants and/or additives, and to the polyoxypropylene-polyols and polyoxyethylene- polyoxypropylene-polyols which can be used for this purpose.

    87.
    发明专利
    未知

    公开(公告)号：DE3935798A1

    公开(公告)日：1991-05-02

    申请号：DE3935798

    申请日：1989-10-27

    Applicant: BASF AG

    Inventor： SCHUSTER LUDWIG DR ,  VOGES DIETER DR

    IPC: C01G55/00

    Abstract: Ruthenium tetroxide is obtained by oxidation of an alkali metal ruthenate in aqueous solution. The oxidizing agent used is ozone. The oxidation is carried out at a pH greater than or equal to 8.

    90.
    发明专利
    未知

    公开(公告)号：DE3861060D1

    公开(公告)日：1990-12-20

    申请号：DE3861060

    申请日：1988-05-26

    Applicant: BASF AG

    Inventor： DEGNER DIETER DR ,  GRAMLICH WALTER DR ,  LENGSFELD WOLFGANG DR ,  SCHUSTER LUDWIG DR

    IPC: C07C29/19 ,  C07C31/135 ,  C07C41/01 ,  C07C41/28 ,  C07C43/115 ,  C07C45/51

    Abstract: 4-isopropylcyclohexylmethanol and its alkyl ethers of the general formula I (I) where R1 is H or C1-C4-alkyl, are prepared by a process in which the novel 4-(1-alkoxy-1-methylethyl)-benzaldehyde or its dialkyl acetal of the general formula II (II) where X is oxygen (IIa) or its two R2O groups (IIb) and R2 and R3 are each C1-C4-alkyl, is heated to 100 DEG -250 DEG C., preferably 130 DEG -200 DEG C., under a hydrogen pressure of from 50 to 350, preferably from 150 to 300, bar in the presence of a noble metal of group VIII of the Periodic Table.

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