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    VERFAHREN ZUR HERSTELLUNG VON CIS- UND TRANS-ANGEREICHERTEM MDACH
    5.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CIS- UND TRANS-ANGEREICHERTEM MDACH 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON CIS-UND TRANS-ANGEREICHERTEM MDACH

    公开(公告)号：EP3224235A1

    公开(公告)日：2017-10-04

    申请号：EP15798024.4

    申请日：2015-11-18

    申请人： BASF SE

    发明人： WEIDERT, Jan-Oliver ,  KRAMP, Sandra ,  BENFER, Regina ,  PANCHENKO, Alexander ,  WEICKGENANNT, Andreas ,  GUTFRUCHT, Norbert ,  BREUER, Klaus ,  KOZICKI, Artur ,  BUSCH, Ralph

    IPC分类号： C07C209/86 ,  C07C211/36

    CPC分类号： C07C7/04 ,  B01D3/007 ,  B01D3/10 ,  C07C209/86 ,  C07C211/36 ,  C07C2601/14

    摘要： The invention relates to a method for producing trans-enriched MDACH, characterized in that an MDACH starting mixture is distilled in the presence of an auxiliary agent. Trans-enriched MDACH is distilled, and - the auxiliary agent is an organic compound with o a molar mass of 62 to 500 g/mol, o a boiling point which lies at least 5 °C above the boiling point of cis,cis-2,6-diamino-1-methylcyclohexane, wherein each of the boling points is based on a pressure of 50 mbar, and o 2 to 4 functional groups which independently of one another are an alcohol, primary, secondary, or tertiary amino group, - the MDACH starting mixture contains 0 to 100 wt.% 2,4-diamino-1-methylcyclohexane (2,4-MDACH) and 0 to 100 wt.% 2,6-diamino-1-methylcyclohexane (2,6-MDACH), based on the total quantity of MDACH (= 2,4- and 2,6-MDACH) contained in the MDACH starting mixture, the MDACH starting mixture containing both trans- as well as cis-isomers, and - trans-enriched MDACH is a mixture containing 0 to 100 wt.% 2,4-MDACH and 0 to 100 wt.% 2,6-MDACH, based on the total quantity of MDACH contained in the mixture. The ratio of trans-isomers in the mixture to the total quantity of MDACH contained in the mixture is higher than the ratio of trans-isomers in the MDACH starting mixture to the quantity of MDACH contained in the MDACH starting mixture.

    摘要翻译： 一种制备反式富集MDACH的方法，包括：在助催化剂存在下蒸馏MDACH起始混合物，所述助剂是摩尔质量为62-500g / mol，沸点至少为5℃以上的有机化合物 顺式，顺式-2,6-二氨基-1-甲基环己烷和2-4个官能团的沸点，其各自独立地为醇基或伯，仲或叔氨基。 基于存在于MDACH起始混合物中的MDACH的总量，MDACH起始混合物包含0至100重量％的2,4-MDACH和0至100重量％的2,6-MDACH。 MDACH起始混合物包括反式和顺式异构体。 反式富集的MDACH包含0至100重量％的2,4-MDACH和0至100重量％的2,6-MDACH，其中反式异构体在混合物中的比例高于反式异构体在 MDACH起始混合物。

    VERFAHREN ZUR HERSTELLUNG EINES CYCLISCHEN ISOCYANATES
    9.
    发明公开
    VERFAHREN ZUR HERSTELLUNG EINES CYCLISCHEN ISOCYANATES 审中-公开

    公开(公告)号：EP3325441A1

    公开(公告)日：2018-05-30

    申请号：EP16742253.4

    申请日：2016-07-20

    申请人： BASF SE

    发明人： BREUER, Klaus ,  BAUMANN, Robert ,  PANCHENKO, Alexander ,  LORENZ, Michael ,  HETTCHE, Frank ,  GUTFRUCHT, Norbert ,  FENLON, Thomas

    IPC分类号： C07C263/10 ,  C07C265/14

    CPC分类号： C07C263/10 ,  C07B2200/09 ,  C07C2601/14 ,  C07C265/14

    摘要： The invention relates to a method for producing a cyclic isocyanate (B) on the basis of a composition (Z) which has at least one component (A) that has at least one cycloalkane ring with at least four ring carbon atoms. The cycloalkane ring has two NH
    2 groups in the β-position or γ-position relative to each other as substituents, and the two NH
    2 groups in the β-position or γ-position relative to each other assume a trans-configuration relative to each other if the total quantity of component (A) is over 50 mol.%. The composition (Z) is reacted with phosgene in the method according to the invention, thereby obtaining a composition (ZP) which has at least one cyclic isocyanate (B) with isocyanate groups. The invention further relates to the use of the isocyanate mixture (M) as monomers in methods for producing polymers, in particular for producing polyurethane and polyureas.