Patent ID: 8210421

Claim:
Process for the manufacture of an aluminum plated strip comprising at least two plating layers of two different aluminum alloys, said process comprising: preparing plates corresponding to each plating layer, superimposing and assembling said plates to form a composite plate, prior to superimposing the plates, applying an anti-sticking agent to cropping areas of at least one surface of each plate which will be in contact with a surface of another one of the plates, wherein said anti-sticking agent comprises a mixture of a mineral powder and a silicon resin in suspension in water or in an organic solution, wherein the inclusion of said anti-sticking agent allows the subsequent separation of the cropped layers resulting from shearing the plated strip, hot and optionally cold rolling of said composite plate to obtain a plated strip, shearing cropping areas of each of said plates during or after rolling, and separately recycling the cropping layers resulting from shearing the plated strip.