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    11.
    发明专利
    未知

    公开(公告)号：DE3684252D1

    公开(公告)日：1992-04-16

    申请号：DE3684252

    申请日：1986-12-04

    Applicant: BASF AG

    Inventor： FISCHER GERHARD ,  NEUBERT GERHARD

    IPC: C08L33/06 ,  C08L67/06 ,  C09D133/06 ,  C09D133/08

    Abstract: Coatings (I), contg. less than 15 wt.% organic solvent, contain as binder a mixt., dispersed in water, of A) 45-2 wt.% at least one water-insol., oxidatively drying, fatty acid -modified alkyd or urethane resin with acid no. under 20 mg KOH/g, condensed fatty acid content at least 50 wt.%, and viscosity under 100 Pa-s. B) 55-98 wt.% at least one physically drying polymer resin dispersable in water through addn. of NH3, opt. with addn. of volatile alcohols or glycol ethers, where sum of % under A and B = 100. Prepn. of (I) by dispersing in A at least one pigment and/or filter, opt. with volatile organic solvent and/or plasticiser, and opt. other water-insol. paint resin, then mixing with aq. soln. or dispersion of B. Binder comprises 30-5 wt.% A, 70-95 wt.% B. A has acid no. under 15 and contains at least 60 wt.% condensed fatty acid. B is (meth)acrylate ester copolymer (II) or (II) mixt. with styrene content up to 30 wt.% and acid no. 10-60 mg KOH/g copolymer or is styrene-(meth)acrylate ester copolymer (III) or (III) mixt. with polymerised styrene content 30-70 wt.% and acid no. 25-90 mg KOH/g copolymer. (I) contains 2-50 wt.%, on A + B, at least one water-immiscible, heat-curable resin stable at room temp..

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