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    51.
    发明专利
    未知

    公开(公告)号：DE3422509A1

    公开(公告)日：1985-12-19

    申请号：DE3422509

    申请日：1984-06-16

    Applicant: BASF AG

    Inventor： KEMPTER FRITZ ERDMANN DR ,  WEISS WOLFRAM DR ,  OSTERLOH ROLF DR ,  ZOSEL ALBRECHT DR

    IPC: C09D5/44 ,  C09D3/48 ,  C09D3/50 ,  C09D3/58 ,  C09D3/80 ,  C25D13/04 ,  C25D13/10

    Abstract: Cathodic coating agents which are rendered water-dilutable by the addition of an acid, contain binder systems possessing basic nitrogen groups and may or may not contain pigments, dyes, fillers, solvents, antioxidants, other surface coating assistants and/or additional crosslinking components, the binder system containing sulfonate and/or phosphonate groups or the esters of these groups in an amount of from 0.05 to 3% by weight, and the preparation of such products. The novel coating agents are useful for the cathodic electrocoating of electrically conductive substrates.

    52.
    发明专利
    未知

    公开(公告)号：DE3422218A1

    公开(公告)日：1985-12-19

    申请号：DE3422218

    申请日：1984-06-15

    Applicant: BASF AG

    Inventor： EBEL KLAUS DR ,  REUTHER WOLFGANG DR ,  WEISS WOLFRAM DR ,  LELGEMANN LUDWIG

    IPC: C07D251/54 ,  C07D251/70 ,  C08G12/26 ,  C08G12/30 ,  C08G12/34 ,  C08G12/38 ,  C08L61/28 ,  C09D3/50

    Abstract: N,N',N''-tris-(2-hydroxyethyl)-melamine, if required, as a mixture with N-mono- and N,N'-bis-(2-hydroxyethyl)-melamine, is prepared by reacting melamine with ethanolamine in the presence of an acidic catalyst by a method in which the reaction is carried out at from 120 DEG to 250 DEG C. using an excess of ethanolamine, and the molar ratio of free ethanolamine to the sum of free and converted melamine is not permitted to fall below 4:1 during the entire reaction time, and the stated (2-hydroxyethyl)-melamines are used as modifiers in the prepartion of aminoplast resins which are suitable for laminating surfaces.

    PROCESS FOR THE PREPARATION OF AMINOPLAST RESINS AND THEIR USE
    53.
    发明专利
    PROCESS FOR THE PREPARATION OF AMINOPLAST RESINS AND THEIR USE 未知

    公开(公告)号：DE3263287D1

    公开(公告)日：1985-05-30

    申请号：DE3263287

    申请日：1982-09-18

    Applicant: BASF AG

    Inventor： HUMMERICH RAINER DR ,  HAHN HERBERT DR ,  WEISS WOLFRAM DR ,  IMMEL GUENTHER DR ,  KRAUSE HANS-JOACHIM DR ,  PETERS KARL-CLEMENS DR

    IPC: C08G12/30 ,  C08G12/32 ,  C08G12/42 ,  C09D3/50

    Abstract: A process for the preparation of etherified or non-etherified aminoplast resins, wherein an aminotriazine of the general formula (I) (I) where X is hydrogen, alkyl, phenyl, alkylphenyl or -NH2, is reacted with a beta -hydroxyaldehyde of the general formula (II) (II) where R', R'' and R''' are identical or different and each is hydrogen or alkyl, or R'' and R''', together with the alpha -carbon atom, are a cyclopentane or cyclohexane ring, and R'' and/or R''' can be hydroxyalkyl and R'' can be phenyl, the reaction being carried out in the presence of not less than one alcohol and an acid catalyst for the preparation of etherified aminoplast resins and in the presence or absence of an acid catalyst for the preparation of non-etherified aminoplast resins. The aminoplast resins prepared according to the invention can be used as surface-coatings raw materials.

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