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    CURABLE COMPOUNDS, AND THE PREPARATION AND USE THEREOF
    27.
    发明专利
    CURABLE COMPOUNDS, AND THE PREPARATION AND USE THEREOF 未知

    公开(公告)号：CA1331250C

    公开(公告)日：1994-08-02

    申请号：CA573946

    申请日：1988-08-05

    Applicant: HOECHST AG

    Inventor： HOENEL MICHAEL ,  ZIEGLER PETER ,  FOEDDE HARTMUT

    IPC: C08G18/10 ,  C08G18/58 ,  C08G83/00 ,  C08G85/00 ,  C09D5/44 ,  C09D201/02

    Abstract: Curable compounds, and the preparation and use thereof The invention relates to curable compounds carrying groups containing basic nitrogen, essentially comprising structural units derived from A) a compound which contains, on average, at least one, preferably terminal 2-oxo-1,3-dioxolane group per molecule, with B) a secondary diamine containing hydroxyl groups in the .beta.-positions to the secondary amino groups, it also being possible for this amine to contain blocked primary amino groups, and, if appropriate, C) a difunctional amine containing at least one free pri mary amino group and, if appropriate, at least one secondary amino group. The invention furthermore relates to a process for the preparation of the curable compounds and to their use, in particular in surface-coating preparations, specifically in electrocoating materials. The coatings obtained using these compounds are distinguished, above all, by optimized inter-layer adhesion.

    Electrodeposition bath containing a urethane
    28.
    发明专利
    Electrodeposition bath containing a urethane 未知

    公开(公告)号：ZA933246B

    公开(公告)日：1993-11-23

    申请号：ZA933246

    申请日：1993-05-10

    Applicant: HOECHST AG

    Inventor： WEHNER SUSANNE ,  KLIMA HEINZ ,  HOENEL MICHAEL ,  ZIEGLER PETER ,  WALZ GERD

    IPC: C08L63/00 ,  C08G59/28 ,  C09D5/44 ,  C09D175/00 ,  C09D175/04 ,  C25D13/06 ,  C25D ,  C09D ,  C07C

    Abstract: Electrocoating bath containing a urethane of the formula R1-NHCOO-R2 where R1 is alkyl or a group of the formula B1-NH-B2-[X-B3]n-, R2 is a group of the formulae -(C2H4O)y-R1 and -(C3H7O) y-R or of the formula R is C1-C18-alkyl, Y is from zero to 4, B1 is hydrogen, alkyl or a group of the formula -COOR2, B2 and B3 can be identical or different and each is C2-C14-alkylene, n is an integer from 0 to 5, preferably from 0 to 2, X is -O-, -S-, -NH- or @N-(C1-C4)-alkyl, R3 is hydrogen or alkyl, alkenyl, hydroxyalkyl, phenyl or alkylphenyl, R4 and R5 can be identical or different and each is hydrogen or C1-C4-alkyl, and A is a direct bond or one of the groups -O-, -CH2O- or -CH2OCO-. The presence of these urethanes in the electrocoating bath reduces the number of surface defects in galvanised surfaces.

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