Multilayer plate or panel
OwnerAndrea Strignano, Simone Collinoinventors
Life of this patent
Estimating the term…
Abstract
A multilayer plate or panel has at least three layers superimposed and coupled to each other, which include an intermediate core layer and two covering layers, or skin layers, coupled to its opposite faces and made from a thermoplastic material. The two covering layers include an extruded film of plastic material or thermoplastic fibers mixed or intertwined with other fibers, synthetic or natural, which are bonded and/or fixed only thermally and/or by simultaneous compression to a respective face of the intermediate layer, which also contains a thermoplastic material in the form of an agglomerate or of a set of thermoplastic fibers, which may be mixed with other fibers, synthetic or natural.
Claims15
A multilayer plate or panel, comprising:
- at least three layers superimposed and coupled to each other, which comprise:
- an intermediate core layer having a skin layer coupled to each of opposing faces of the intermediate core layer,
- wherein said skin layers comprise a thermoplastic material and are thermally bonded and/or fixed to a respective face of said intermediate core layer,
- wherein the intermediate core layer is made from a thermoplastic material and is provided as an agglomerate of at least partly thermoplastic fibers and/or of an expanded thermoplastic material,
- wherein said agglomerate is obtained by compression and simultaneous heating from a pre-established initial thickness to a final thickness of about 1 mm to about 3.8 mm having an average density of from 50 to 300 Kg/m3 and a weight per unit of surface from 250 to 500 g/m2.
A multilayer plate or panel plate or panel, comprising:
- at least three layers superimposed on each other and coupled to each other which comprise:
- an intermediate core layer having a skin layer coupled to each of opposing faces of the intermediate core layer,
- wherein said skin layers comprise a thermoplastic material and are bonded and/or thermally fixed to a respective face of said intermediate core layer, and
- wherein the intermediate core layer is made from a thermoplastic material and comprises one or more layers of expanded thermoplastic material, said intermediate core layer having a density from about 50 to about 200 Kg/m3 and/or a thickness from about 2 to about 3 mm.
Dependencies are inferred from the claim text.