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24 records (took 0.049 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE2747334A1

    公开(公告)日：1979-05-03

    申请号：DE2747334

    申请日：1977-10-21

    Applicant: BASF AG

    Inventor： BOEHLKE KLAUS DIPL CHEM DR ,  KEMPTER FRITZ ERDMANN DIPL CHE

    IPC: C25D13/22

    Abstract: Novel anodes consist of a mixture of from 30 to 95% by weight of nagnetite, lead dioxide, magnetite/natural graphite mixture or lead dioxide/natural graphite mixture and from 70 to 5% by weight of a plastic. They may be used for the surface-coating of metallic substrates by cathodic electrocoating.

    3.
    发明专利
    未知

    公开(公告)号：DE3021300A1

    公开(公告)日：1981-12-24

    申请号：DE3021300

    申请日：1980-06-06

    Applicant: BASF AG

    Inventor： SCHUPP EBERHARD DIPL CHEM DR ,  KEMPTER FRITZ ERDMANN DIPL CHE ,  GULBINS ERICH DIPL CHEM DR

    IPC: C08G59/00 ,  C08G14/06 ,  C08G59/06 ,  C08G59/14 ,  C08G59/18 ,  C08G59/40 ,  C08G59/64 ,  C08L63/00 ,  C09D5/44 ,  C09D163/00 ,  C25D13/06 ,  C09D5/40

    Abstract: A process for the preparation of curable polyadducts, possessing basic nitrogen groups, wherein (A) monophenols and/or polyphenols, which contain groups of the general formula (I): where R1 and R2 are identical or different and each is hydrogen or methyl are reacted with (B) amines having one or more primary and/or secondary amino groups, and the adduct formed is reacted with (C) epoxide compounds having from 1 to 4 epoxide groups per molecule and having a molecular weight of at most 2,500, the ratio of the phenolic hydroxyl groups of (A) to epoxide groups of (C) being from 1:0.5 to 1:2 and the amine (B) being employed in such amount that the resulting polyadduct of (A), (B) and (C) contains from 0.1 to 5% by weight of basic nitrogen, and the use of the products, after protonation with an acid, as binders for the production of coatings, especially for the cathodic electrocoating of metal articles.

    4.
    发明专利
    未知

    公开(公告)号：DE2845988A1

    公开(公告)日：1980-04-24

    申请号：DE2845988

    申请日：1978-10-23

    Applicant: BASF AG

    Inventor： KEMPTER FRITZ ERDMANN DIPL CHE ,  SCHUPP EBERHARD DIPL CHEM DR ,  GULBINS ERICH DIPL CHEM DR

    IPC: C08G18/00 ,  C08G18/08 ,  C08G18/65 ,  C08G18/66 ,  C08G18/80 ,  C09D5/44 ,  C09D175/08 ,  C25D13/06 ,  C09D5/40 ,  C09D3/72

    Abstract: A process for the preparation of self-crosslinking, cathodic electrocoating binders by reacting polyether-polyols, which may or may not contain thio groups, with semi-blocked diisocyanates or partially blocked polyisocyanates, wherein the reaction products (A), containing blocked isocyanate groups, are reacted with a polyamine (B), some of whose amino groups may or may not be in the form of ketimine groups, in such a way that one or more amino groups of the polyamine (B) form a urea group with a blocked isocyanate group of the reaction product (A), and the self-cross-linking reaction product of (A) and (B) is converted into a water-dilutable form in the conventional manner by protonization with an acid. The coating binders prepared according to the invention may be used for cathodic electrocoating of metal articles.

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