13.
    发明专利
    未知

    公开(公告)号:DE2926584A1

    公开(公告)日:1981-01-22

    申请号:DE2926584

    申请日:1979-06-30

    Applicant: HOECHST AG

    Abstract: A water-dilutable binder composition for the preparation of a metallic base paint comprising (A) a water-soluble condensation product derived from (a) a saturated or unsaturated oil-free polyester containing OH-groups having been prepared from at least one polycarboxylic acid and at least one polyhydric alcohol, (b) a polycarboxylic acid mixture containing trimellitic acid, (c) at least one epoxidized oil, and (d) a basic compound; (B) an additive selected from the group consisting of one or more metal powders, one or more metal powders in combination with at least one other pigment, and one or more metal powders in combination with at least one other dyestuff; and (C) at least one water-miscible solvent a process for the preparation of a two-layer metallic paint coating with said composition.

    15.
    发明专利
    未知

    公开(公告)号:DE3919028A1

    公开(公告)日:1990-12-13

    申请号:DE3919028

    申请日:1989-06-10

    Applicant: HOECHST AG

    Abstract: Coating compsn. contains (A) a film-forming resin, (B) a cellulose ester, (C) solvent, (D) metal pigment and opt. (E) crosslinkers and (F) further lacquer additives and of the type esp. to give a multi-layer coating with a base layer and opt. a clear topcoat. (i) the cellulose ester (B) has an acetyl content of 2-30 (pref. 2-5) wt.%, a butyryl content of 17-53 (pref. 47-53) wt.% and an average mol.wt. of at least 25000, pref. 30000-60000; and (ii) this cellulose ester is introduced into the coating compsn. in the form of a pasty, thixotropic pre-mix (e.g. with the crosslinkers). The solids content of the compsn. is pref. 15-30 wt.%. The cellulose ester pre-mix pref. contains a diluent which swells the cellulose ester, esp. an aromatic or aliphatic hydrocarbon or a higher alcohol. alcohol.

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