Composition board

A method of making a particle board comprising the steps of taking a mixture of ground coffee and chicory root and making up a pulp with coffee and chicory root in the ratio of 50 to 70% chicory root, reducing the water content to between 3% and 12% by weight to form a mixture of dried particles, separating the dried particles into a coarse stream and fine stream, respectively, mixing the dried particles with coarse and fine particles of bagasse, adding binder to the mixtures, forming the particle board with the coarse mixture as a central core and the fine mixture at either side thereof said coarse mixture containing at least about 25% chicory root particles, and finally applying heat and pressure to the board.

A method for the manufacture of particle board comprising the steps of forming a mixture of ligno-cellulosic structural particles and filler material, applying a binder to said mixture, pressing the mixture to form a board, and causing the binder to set and bind the materials together in the board, wherein said structural particles comprise at least about 25% of chicory root particles and said filler material being selected from the group consisting of coffee grounds, sawdust and vegetable products and comprising less than 50% by weight of the finished board.