VERFAHREN ZUR HERSTELLUNG VON POLYISOCYANATEN
    6.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON POLYISOCYANATEN 审中-公开
    用于生产多异氰酸酯

    公开(公告)号:EP2714649A2

    公开(公告)日:2014-04-09

    申请号:EP12726063.6

    申请日:2012-05-29

    Applicant: BASF SE

    CPC classification number: C07C273/1863 C07C263/06 C07C275/14 C07C265/14

    Abstract: The invention provides a multistage process for continuously preparing organic polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic polyamines with carbonic acid derivatives and alcohols to give low molecular weight monomeric polyurethanes and cleaving the latter. The invention further provides a corresponding preparation process in which the polyisocyanates prepared and unutilizable residues are removed at particular reaction stages, and reusable by-products and intermediates are recycled into preceding stages.

    METHYL-SUBSTITUIERTE TETA-VERBINDUNGEN
    10.
    发明公开
    METHYL-SUBSTITUIERTE TETA-VERBINDUNGEN 有权
    甲基 - SUBSTITUIERTE TETA-VERBINDUNGEN

    公开(公告)号:EP2443088A1

    公开(公告)日:2012-04-25

    申请号:EP10725162.1

    申请日:2010-06-14

    Applicant: BASF SE

    CPC classification number: C07D207/327 C07C211/14

    Abstract: The invention relates to a method for producing triethylenetetramine that is substituted with at least one methyl group (Me-TETA or methyl-substituted TETA compounds). Me-TETA is produced by hydrogenating biscyanomethyl imidazolidine (BCMI) in the presence of a catalyst. The present invention further relates to methyl-substituted TETA compounds as such. The present invention further relates to the use of methyl-substituted TETA compounds as an educt or intermediate product in the production of, for example, coatings or adhesives.

    Abstract translation: 本发明涉及用至少一个甲基取代的三亚乙基四胺(Me-TETA或甲基取代的TETA化合物)的制备方法。 Me-TETA是通过在催化剂存在下氢化双氰甲基咪唑烷(BCMI)而生产的。 本发明进一步涉及甲基取代的TETA化合物本身。 本发明进一步涉及甲基取代的TETA化合物在生产例如涂料或粘合剂中作为离析物或中间产物的用途。

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