| 摘要 |
PCT No. PCT/EP93/00242 Sec. 371 Date Aug. 23, 1994 Sec. 102(e) Date Aug. 23, 1994 PCT Filed Feb. 3, 1993 PCT Pub. No. WO93/15849 PCT Pub. Date Aug. 19, 1993.The invention relates to a process for the production of two-coat finishes of the basecoat/clearcoat type, in which nonaqueous transparent topcoats are employed, which comprise (A) a synthetic resin containing hydroxyl groups or a mixture of synthetic resins containing hydroxyl groups, (B) an amino resin or a mixture of amino resins, and (C) a blocked polyisocyanate or a mixture of blocked polyisocyanates, in which component (C) comprises isocyanate groups blocked both with a blocking agent (I) and with a blocking agent (II), and the blocking agent (I) being a dialkyl malonate, the blocking agent (II) being a blocking agent which is different from (I) and contains active methylene groups or an oxime, and the ratio of equivalents between the isocyanate groups blocked with (I) and the isocyanate groups blocked with (II) being between 1.0:1.0 and 9.0:1.0. |
