A composite board and the method for producing it

Abstract

The present invention provides a composite board and the method for producing it, wherein the composite board includes a base material layer constituting the core part of the composite board; a wear layer covering and fixed on the base material layer; a substrate layer which is fixed on the other side of the base material layer opposite to the wear layer; and the first binding layer which is bound between the base material layer and the wear layer, wherein the base material layer further includes fixings on its both sides, and when at least two composite boards are connected together, the fixings can be coupled with each other to relatively fix the composite boards. The aforementioned method and techniques can enable composite boards to be as rigid and wear-resistant as a tile and moreover, can reduce the time and labor costs required for the installation of the tiles by applying the base material layer in the installation of composite boards.

What is claimed is: 
     
         1 . A composite board including
 a base material layer constituting the core part of the composite board;   a wear layer covering and fixed on the base material layer;   a substrate layer which is fixed on the other side of the base material layer opposite to the wear layer;   the first binding layer which is bound between the base material layer and the wear layer, wherein   the base material layer further includes fixings on its both sides, and when at least two composite boards are connected together, the fixings will be coupled with each other to relatively fix the composite boards.   
     
     
         2 . The composite board of  claim 1 , wherein
 the base material layer includes a composite material made of stone powder and plastic; and   the wear layer includes rigid materials.   
     
     
         3 . The composite board of  claim 2 , wherein
 the composite material is WPC wood-plastic flooring or SPC stone-plastic flooring; and   the rigid materials are tiles or stone materials.   
     
     
         4 . The composite board of  claim 1 , wherein
 the base material layer and the wear layer are molded by a high temperature or cold pressing after they are glued together.   
     
     
         5 . The composite board of  claim 1 , wherein
 the composite board further includes the second binding layer between the base material layer and the substrate layer.   
     
     
         6 . The composite board of  claim 1 , wherein
 the fixing is a lock-catch type; and   the lock-catch fixing includes a mounting groove and a mounting tongue for realizing the coupling and fixation of the said multiple base material layers.   
     
     
         7 . The composite board of  claim 6 , wherein
 the mounting tongue includes a stopper groove; and the mounting groove on its surface has a stopper tongue;   the stopper tongue couples with the stopper groove, so as to limit the axial and radial movements between the said multiple base material layers.   
     
     
         8 . The composite board of  claim 1 , wherein
 the base material layer includes a mounting surface oriented toward the wear layer; and   the wear layer has a pair of edges fit with the ones of the mounting surface, and another pair of edges set within the projection area of the mounting surface.   
     
     
         9 . The composite board of  claim 1 , wherein
 the wear layer on its surface has decorative joints which are parallel with the direction along the width of the wear layer.   
     
     
         10 . A method for producing the composite boards, which includes the following steps:
 Step S 100 : Take a base material layer as the core part of the composite board;   Step S 200 : Set fixings on both sides of the base material layer, which are used to relatively fix the composite boards;   Step S 300 : Set and fix a wear layer on the base material layer.