| 摘要 |
<p>IT IS AN OBJECT OF THE PRESENT INVENTION TO PROVIDE A COATED STEEL SHEET, PROPERTIES OF WHICH SUCH AS TAPE PEELING RESISTANCE, SOLVENT RESISTANCE, ALKALI RESISTANCE AND ABRASION RESISTANCE ARE IMPROVED. A COATED STEEL SHEET COATED WITH A COMPOSITE COAT, WHEREIN SAID COMPOSITE COAT COMPRISES A COMPOUNDED RESIN (A) IN WHICH POLYURETHANE RESIN PARTICLES (A-1) AND ETHYLENE-UNSATURATED CARBOXYLIC ACID COPOLYMERIZATION RESIN PARTICLES (A-2), RESPECTIVELY HAVING AN AVERAGE PARTICLE DIAMETER OF 20 TO 100 NM AND A SILANOL GROUP AND/OR AN ALKOXYSILYL, GROUP, ARE CONTAINED IN A MASS RATIO OF 20:80 TO 90:10 AND SILICON OXIDE PARTICLES (A-3) HAVING AN AVERAGE PARTICLE DIAMETER OF 5 TO 20 NM AND AN ORGANIC TITANIUM COMPOUND (A-4 ) ARE COMPOUNDED, POLYOLEFIN WAX PARTICLES (B) HAVING AN AVERAGE PARTICLE DIAMETER OF 0.5 TO 4 µM AND A SOFTENING POINT OF 100 TO 140°C, AND SILICON OXIDE PARTICLES (C) HAVING AN AVERAGE PARTICLE DIAMETER OF 70 TO 200 NM, AND WHEREIN AN AMOUNT OF A COAT OF SAID COMPOSITE COAT IS 0.5 TO 3 G/CM2.</p> |
