LOW DENSITY SEMIFINISHED PRODUCT FOR MANUFACTURING BUOYANT PRODUCTS

摘要

Low density semifinished product for manufacturing buoyant products, comprising a plurality of layers of closed-cell expanded material, having a specific gravity lower than that of water, the said layers being flexible and elastic and being joined together by quilting spaced so as to define between them pockets of air, characterised in that the said quilting is preferably distributed in closed patterns.