Patent ID: 6212838
Filing Date: 2001-04-10
Classification: B32B,E04F,Y10T

Abstract:
Floor material comprising:a surface cork member of a high density, constituting a floor surface layer,made from a dried bark of a cork oak tree crushed into granules and mixed with a synthetic resin, which is shaped into a block body by a mold and cut into a tile shape;an intermediate cork member of a density slightly lower than that of said surface cork member, constituting a floor intermediate layer, made from a cork oak tree crushed into granules and mixed with an adhesive, and the obtained mixture is pressed into a sheet shape; anda substrate cork member of a density slightly lower than that of said intermediate cork member, constituting a floor substrate layer, made from a mixture of granular cork oak and a powered cork oak which is heated while being pressurized and formed into a block-shaped carbonated cork material which is cut into a panel shape;wherein said substrate cork member is bonded to a backing material of a building, on which said intermediate cork member and said surface decorative member are successively bonded, so as to obtain a three-layered floor plane.