Patent ID: 8518205

Claim:
Method to produce a flexible wood-based product ( 10 ), comprising a first step in which, from a trunk ( 12 ) of wood, a plurality of sheets of wood ( 14 ) are made, a second step in which a stack or pile ( 15 ) formed by the sheets ( 14 ) disposed one on top of the other is made, and in which, between one sheet ( 14 ) and the other, a layer of adhesive material ( 16 ) is deposited, along determinate gluing planes (P), a third step in which the stack or pile ( 15 ) is subjected to compression for a determinate period of time at a temperature between about 5° C. and 40° C., so as to allow the reticulation of the adhesive material and to make the sheets ( 14 ) adhere permanently to each other, and a fourth step in which the stack or pile ( 15 ) is cut along at least a plane transverse to said gluing planes (P), in order to obtain the flexible product ( 10 ), wherein, between the first and the second step, a head-wise joint is formed between one sheet ( 14 ) and another, by means of said adhesive material ( 16 ), in correspondence with relative head and tail edges ( 24 ) of juxtaposed sheets ( 14 ) and, in the course of the third step, the head-wise joined sheets ( 14 ) are stacked one above the other, so that the corresponding joined edges ( 24 ) are offset laterally along the thickness of the stack or pile ( 15 ) that is formed, so as to obtain a final element of desired sizes.