RESIN-COATED STEEL SHEET FOR DRAWN-AND-IRONED CANS AND DRAWN-AND-IRONED CANS MANUFACTURED THEREFROM

摘要

Resin-coated steel sheets which have excellentworkability in drawing and ironing even at a normaltemperature without preheating, and which give, by drawingand ironing, DI cans having resin coating satisfactory inadhesion, corrosion resistance, and external appearance.The sheets comprise a steel sheet tin-coated on one sideand chromate-treated on the other side, the chromate-treatedside being further coated with a resin compositioncomposed of a thermoplastic polyester resin prepared by athermal fusion reaction of 95 to 5 % by weight of acrystalline polyester and 5 to 95 % by weight ofnon-crystalline polyester and having an alloying ratio, of 5to 50 %. The sheets may be tin-coated on both sides, oneof which is further coated with the above resincomposition or a non-crystalline resin and further theabove resin composition, or the above resin compositionand further a crystalline polyester resin.