Unprocessed composite material of biodegradable plastic and cellulose in the form of granules for industrial use; Unprocessed composite material of biodegradable plastic and paper or recycled paper in the form of granules for industrial use; Unprocessed composite material of biodegradable plastic and cellulose in the form of powders for industrial use; Unprocessed composite material of biodegradable plastic and paper or recycled paper in the form of powders for industrial use