PRIMER CONTAINING MODIFIED EPOXY RESINS

    公开(公告)号:CA978693A

    公开(公告)日:1975-11-25

    申请号:CA138626

    申请日:1972-03-30

    Applicant: HOECHST AG

    Abstract: An article of manufacture comprising a substrate which is coated with a primer and a second coating adhering to the primer. The primer comprising as an essential ingredient an epoxy resin modified by acetoacetic ester groups which may also contain chemically bound metal atoms as a chelate. The cover layer contains a homo- or a copolymer of a fluorine-containing vinyl monomer having up to two fluorine atoms or a combination of such polymers.

    3.
    发明专利
    未知

    公开(公告)号:IT1157316B

    公开(公告)日:1987-02-11

    申请号:IT2310182

    申请日:1982-09-02

    Applicant: HOECHST AG

    Abstract: Binders based on co-condensates of epoxy resins and resols with amines, the epoxy resin being partially defunctionalized and still containing on average 0.5-1.3 epoxide groups per molecular unit, the resol component being composed of methylol compounds of oligomethylene compounds, which are additionally substituted by hydrocarbon or hydroxyalkyl or hydroxyaralkyl radicals, and the amine containing at least one primary or secondary amino group and at most 2 hydroxyl groups. The invention further relates to a process for the preparation of a binder and for the electrophoretic deposition of a cationic resin from an aqueous dispersion onto an article connected as the cathode and to an aqueous electrophoresis bath for carrying out this process.

    PROCESS FOR THE MANUFACTURE OF HARDENABLE COPOLYMERS AND THE USE THEREOF

    公开(公告)号:CA1174790A

    公开(公告)日:1984-09-18

    申请号:CA384398

    申请日:1981-08-21

    Applicant: HOECHST AG

    Abstract: : Process for the manufacture of hardenable copolymers by the polymerisation of unsaturated esters with unsaturated polymerisable monomers containing no free COOH groups, wherein an olefinically unsaturated diester containing OH groups is used as the unsaturated ester, said diester being obtained by reacting olefinically unsaturated dicarboxylic acids or the anhydrides thereof with a polyhydric alcohol and a monoepoxide compound in one or more steps, characterised in that the copolymerisation of the diesters with monomers which contain no free COOH groups is carried out in the presence of copolymerisable monomers containing free COOH groups, and the use of the copolymers as hardenable binders for lacquers and/or coating compositions.

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