multilayer lacquering process
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IlUL1'ILAnR a.ae-J""••PIIOCIUU.S. Patent 5,908,667. June I, 1999J. Blum et al., assignors to HerbertsGmbH, Wuppertal, GermanyA process for producing a multilayer lacquer coating comprisingelectrophoretically applying aprimer; stoving the primer coat;applying a base lacquer coat usingan aqueous coating agent consisting of a color-giving base lacquercoat and an effect-producing baselacquer coat; staving the base lacquer coat; applying one or moreclear lacquer coats; wherein theoverall dry layer thickness of theone or more clear lacquer coats is40 to 80 ~m; and the overall drylayer thickness of the multilayerlacquer coating is 80 to 110 J.Lm.
COPNlluconllY PIIOCDSU.S. Patent 5,908,605. June I, 1999M.J. Virnig and R.B. Sudderth,assignors to Henkel Corp., GulphMills, Pa.In a process for the recovery ofcopper from an aqueous ammoniacal solution comprising contactingwith an organic solution comprised of an insoluble beta-diketone copper extractant dissolvedin a water-immiscible organic solvent to extract copper valuesthereby forming a copper pregnant organic phase and a copperbarren aqueous phase; separatingthe aqueous and organic phase;contacting the organic phase withan aqueous acidic stripping solution; and recovering the copperwherein stripping kinetics are improved by incorporating into, oradding to the diketone extractant,an hydroxy oxime in a catalyticamount of 0.5 to 5 mole % relativeto the diketone extractant.
material into contact with anaqueous alkaline solution, andelectroplating the material.
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