| 摘要 |
<p>THE OBJECT IS THE PROVISION OF A PRE-COATED METAL PLATE (2) WHICH HAS A HIGH HEAT INSULATION AND IS EXCELLENT IN WORKABILITY AND A COATED METAL ARTICLE. A PRE-COATED METAL PLATE (2) COMPRISED OF A METAL SHEET ON ONE SURFACE OR ON BOTH SURFACES OF WHICH AT LEAST TWO COATING FILM LAYERS ARE PROVIDED, SAID PRE-COATED METAL PLATE (2) CHARACTERIZED IN THAT, AMONG SAID AT LEAST TWO LAYERS OF COATING FILM LAYERS, A FIRST COATING FILM LAYER WHICH IS POSITIONED AT A LOWER SIDE IS A BUBBLE-CONTAINING LAYER, SAID BUBBLE-CONTAINING LAYER SATISFIES THE FOLLOWING FORMULAS: -0.1T+57.5<V<-0.05T+92.5 AND 50<T<350, WHEREIN V REPRESENTS A VOLUME CONCENTRATION (%) 15 AS A BUBBLE CONTENT OF THE BUBBLE-CONTAINING LAYER, AND T REPRESENTS A THICKNESS (µM) OF THE BUBBLE?CONTAINING LAYER, A SECOND COATING FILM LAYER WHICH IS POSITIONED AT AN UPPER SIDE OF SAID FIRST COATING FILM LAYERS IS A COATING FILM LAYER WHICH CONTAINS A MELAMINE CURING TYPE POLYESTER RESIN OR ISOCYANATE CURING TYPE POLYESTER RESIN, SAID POLYESTER RESIN HAS A NUMBER AVERAGE MOLECULAR WEIGHT OF 10000 TO 23000, AND SAID SECOND COATING FILM LAYER HAS A THICKNESS OF 3 TO 30 µM. (FIG. 4)</p> |
