Recycling of laminate floorings

Abstract

Recycling of laminate flooring based on a separation of the panels into particles which are connected with a binder and formed to a new sheet shaped material. A building panel includes a surface layer and a wood fiber based core, and the wood fiber based core includes aluminium oxide particles.

1 - 20 . (canceled) 
     
     
         21 . A building panel comprising a core, a surface layer and a balancing layer, wherein the balancing layer comprises particles from recycled floor panels. 
     
     
         22 . The building panel according to  claim 21 , wherein the core is of HDF. 
     
     
         23 . The building panel according to  claim 21 , wherein the particles from recycled floor panels comprise aluminium oxide particles. 
     
     
         24 . The building panel according to  claim 21 , wherein the particles from recycled floor panels comprises aluminium oxide, melamine particles and wood fibres coated or impregnated with cured binders. 
     
     
         25 . The building panel according to  claim 21 , wherein the particles from recycled floor panels comprises decorative paper, melamine flakes and aluminium oxide particles. 
     
     
         26 . The building panel according to  claim 21 , wherein the balancing layer further comprises virgin fibres or fibres of a type used for manufacturing of MDF or HDF. 
     
     
         27 . The building panel according to  claim 21 , wherein the balancing layer further comprises a binder mixed with the particles from recycled floor panels. 
     
     
         28 . The building panel according to  claim 21 , wherein the building panel is a floorboard. 
     
     
         29 . The building panel according to  claim 21 , wherein the surface layer comprises particles from recycled floor panels. 
     
     
         30 . The building panel according to  claim 21 , wherein the recycled floor panels are recycled laminate floor panels. 
     
     
         31 . The building panel according to  claim 30 , wherein the recycled laminate floor panels are from laminate floor panels comprising a wood fibre based core, a decorative surface layer, the decorative surface layer comprising a thermosetting resin, and aluminium oxide particles. 
     
     
         32 . The building panel according to  claim 21 , further comprising a mechanical locking system. 
     
     
         33 . A building panel comprising a core and a surface layer, wherein the surface layer comprises particles from recycled floor panels. 
     
     
         34 . The building panel according to  claim 33 , wherein the particles from recycled floor panels comprise aluminium oxide particles. 
     
     
         35 . The building panel according to  claim 33 , wherein the core is of HDF. 
     
     
         36 . A building panel comprising a core, a surface layer and a balancing layer, wherein the core, the surface layer and the balancing layer comprise particles from recycled floor panels. 
     
     
         37 . The building panel according to  claim 36 , wherein the particles from recycled floor panels comprise aluminium oxide. 
     
     
         38 . The building panel according to  claim 36 , wherein the particles from recycled floor panels comprises aluminium oxide, melamine particles and wood fibres coated or impregnated with cured binders.