Thermoplastic starch compositions incorporating a

专利名称：Thermoplastic starch compositions

incorporating a particulate filler component

发明人：Per Just Andersen,Simon K. Hodson申请号：US09480262申请日：20000111公开号：US06231970B1公开日：20010515

摘要：Thermoplastic starch compositions that include a particulate filler, e.g. aninorganic filler component, and optional fibrous component The compositions include athermoplastic phase comprising a thermoplastic starch melt that contains, at a minimum,starch blended with an appropriate plasticizing agent under conditions in order for thestarch to form a thermoplastic melt. The thermoplastic phase may also include one ormore additional thermoplastic polymers and other optional reactants, liquids or cross-linking agents to improve the water-resistance, strength, and/or other mechanicalproperties of the thermoplastic melt, particularly upon solidification. The inorganic fillercomponent may affect the mechanical properties but will mainly be added to reduce thecost of the thermoplastic starch compositions by displacing a significant portion of themore expensive starch or starch/polymer melt. Fibers may optionally be included inorder to improve the mechanical properties of the thermoplastic starch compositions.The thermoplastic starch compositions may be shaped into a wide variety of usefularticles, such as sheets, films, containers, and packaging materials. Because thethermoplastic starch compositions will typically include a thermoplastic phase that isbiodegradable, and because the other components will either constitute a naturally

occurring mineral and optionally a natural fiber, the overall composition will typically bemore environmentally friendly compared to conventional thermoplastic materials.

申请人：E. KHASHOGGI INDUSTRIES, LLC

代理机构：Workman, Nydegger & Seeley

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