1.
    发明专利
    未知

    公开(公告)号:DE50104094D1

    公开(公告)日:2004-11-18

    申请号:DE50104094

    申请日:2001-12-14

    Applicant: BASF AG

    Abstract: The invention relates to the preparation of pure triethylenediamine (TEDA) by evaporating TEDA from the mixture comprising a solvent or diluent, where the solvent or diluent has a boiling point at atmospheric pressure in the range from 175 to 250° C., passing the vapor-form TEDA into a liquid solvent, and subsequently crystallizing the TEDA out of the resultant solution.

    2.
    发明专利
    未知

    公开(公告)号:DE50203442D1

    公开(公告)日:2005-07-28

    申请号:DE50203442

    申请日:2002-05-10

    Applicant: BASF AG

    Abstract: Purification of triethylene diamine (TEDA) comprises crystallization and extraction of the resulting mother liquor with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process. A process for the purification of triethylene diamine (TEDA) by evaporation and feeding the TEDA vapor to a liquid solvent followed by crystallization is characterized in that following crystallization of the TEDA the resulting mother liquor is extracted with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process.

    3.
    发明专利
    未知

    公开(公告)号:DE59809317D1

    公开(公告)日:2003-09-25

    申请号:DE59809317

    申请日:1998-04-23

    Applicant: BASF AG

    Abstract: The use of N-vinyl-pyrrolidone (NVP) copolymers (I) is claimed as surfactants in formulations of water-insoluble materials (II). (I) is derived from (a) 60-99 mol.% NVP, (b) 1-40 mol.% of one or more monomer(s) selected from (b1) 8-30C alkyl esters of mono-ethylenically unsaturated 3-8C carboxylic acids, (b2) N-(8-18C alkyl)- or N,N-di-(8-18C alkyl)-substituted (meth)acrylamides and (b3) vinyl esters of 8-30C aliphatic carboxylic acids and (c) 0-39 mol.% of further radically copolymerisable monomers. The (II) formulations containing (I) as surfactant are also claimed.

    4.
    发明专利
    未知

    公开(公告)号:DE59709880D1

    公开(公告)日:2003-05-28

    申请号:DE59709880

    申请日:1997-02-07

    Applicant: BASF AG

    Abstract: A cosmetic composition is claimed which contains a sulphonate group-containing polyamide obtained from (a) a 2-18C diamine(preferably 50mol.%); (b) a sulphonate group-containing 4-12C dicarboxylic acid (preferably 0.5-49.5mol.%); and optionally (c) a further 2-16C dicarboxylic acid (preferably 0.5-49.5mol.%). Also claimed are compositions in which the sulphonate group-containing polyamide is obtained from 0-19.9 (preferably 0-10) mol.% 2-12C monoaminocarboxylic acid and/or its lactam, 40.05-50 (preferably 45-50) mol.% (a), 0.5-49.5 (preferably 5-35) mol.% (b) and 0.5-49.5 (preferably 15-45) mol.% (c).

    5.
    发明专利
    未知

    公开(公告)号:DE50107448D1

    公开(公告)日:2005-10-20

    申请号:DE50107448

    申请日:2001-11-30

    Applicant: BASF AG

    Abstract: Preparation of triethylenediamine (I, 1,4-diazabicyclo(2,2,2)octane) by reacting ethylenediamine (II) at 250-500degreesC in presence of a zeolite catalyst (A) containing at least one metal (M) in oxidation states II, III or IV, as the oxide. Preparation of triethylenediamine (I, 1,4-diazabicyclo(2,2,2)octane) by reacting ethylenediamine (II) at 250-500degreesC in presence of a zeolite catalyst (A) containing at least one metal (M) in oxidation states II, III or IV, as the oxide. When M is aluminum, the SiO2:M oxide mole ratio is over 1400:1, when M has an oxidation state II or III the mole ratio is over 100:1, and when M has an oxidation state IV, the mole ratio is over 10:1.

    6.
    发明专利
    未知

    公开(公告)号:DE50106512D1

    公开(公告)日:2005-07-21

    申请号:DE50106512

    申请日:2001-11-30

    Applicant: BASF AG

    Abstract: Preparation of triethylenediamine (I, 1,4-diazabicyclo(2,2,2)octane) by reacting ethylenediamine (II) at 250-500degreesC in presence of a zeolite catalyst (A) containing at least one metal (M) in oxidation states II, III or IV, as the oxide. Preparation of triethylenediamine (I, 1,4-diazabicyclo(2,2,2)octane) by reacting ethylenediamine (II) at 250-500degreesC in presence of a zeolite catalyst (A) containing at least one metal (M) in oxidation states II, III or IV, as the oxide. When M is aluminum, the SiO2:M oxide mole ratio is over 1400:1, when M has an oxidation state II or III the mole ratio is over 100:1, and when M has an oxidation state IV, the mole ratio is over 10:1.

    7.
    发明专利
    未知

    公开(公告)号:DE59605876D1

    公开(公告)日:2000-10-19

    申请号:DE59605876

    申请日:1996-12-19

    Applicant: BASF AG

    Abstract: The complexes comprises heavy metal ions and a polymer containing 50-99.5 wt.% polymerised units of at least one basic vinylheterocyclic compound (I) with a pKa value of at least 3.8, and 0-49.5 wt.% units of other copolymerisable monomers (II), made in the absence of a polymerisation initiator and in the presence of 0.5-10 wt.% on monomers of a crosslinker (III).

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