Preparation of biodegradable material from lignocellulosic materials, used e.g. as molded parts, comprises converting the dissolved cold water-soluble starch suspension to homogeneous mixture, adding propellant, foaming, molding and drying

摘要

Preparation of a completely biologically degradable, natural, porous, laminar or strand form material (I) from lignocellulose raw materials (a), comprises dissolving physically modified cold water-soluble starch (b) in water, converting the starch suspension with (a) to a homogeneous mixture, adding a reactive propellant to the mass from (b), water and fibrous material, foaming the mixture and subsequently molding and drying. Preparation of a completely biologically degradable, natural, porous, laminar or strand form material (I) from lignocellulose raw materials (a), comprises dissolving physically modified cold water-soluble starch (b) in water, converting the starch suspension with (a) to a homogeneous mixture, adding a reactive propellant to the mass from (b), water and fibrous material, foaming the mixture under effect of the propellant at ambient temperature and subsequently molding and drying. An independent claim is also included for a material from completely biologically degradable material comprising foaming a material from a mass of physically modified cold water-soluble starch, water and fibrous material under effect of a reactive propellant at ambient temperature, providing in a form and drying.