COATED STEEL SHEET

• Main Authors: SASAKI MOTOHIRO, TAKAHASHI AKIRA, FUDA MASAHIRO, MORISHITA ATSUSHI, KAROJI JUNPEI, KANAI HIROSHI, SAITO KOICHI
• Format: Patent
• Language: English
• Published: 14.09.2012
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DIFFUSION TREATMENT OF METALLIC MATERIAL; DYES; FILLING PASTES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

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.