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    Biodegradable polymer masterbatch, and a composition derived therefrom having improved physical properties
    8.
    发明授权
    Biodegradable polymer masterbatch, and a composition derived therefrom having improved physical properties 有权
    可生物降解的聚合物母料和由其衍生的组合物具有改进的物理性能

    公开(公告)号：US08008373B2

    公开(公告)日：2011-08-30

    申请号：US11981003

    申请日：2007-10-31

    申请人： Ramani Narayan ,  Sunder Balakrishnan ,  Donald A. Kubik ,  Mehmet A. Gencer

    发明人： Ramani Narayan ,  Sunder Balakrishnan ,  Donald A. Kubik ,  Mehmet A. Gencer

    IPC分类号： C08J3/20

    CPC分类号： C08J3/226 ,  C08J2400/14 ,  C08L2201/06

    摘要： A biodegradable thermoplastic polymer masterbatch composition comprising a blend of at least one biodegradable thermoplastic polymer containing high loading of a particulate filler uniformly dispersed therein. The amount of the biodegradable thermoplastic polymer is generally from about 25% to about 50% by weight and the amount of the filler is from about 75% to about 50% by weight, based upon the total amount of one biodegradable polymer and the at least one filler. The uniform dispersion of the fillers is desirably obtained by adding small particles of the filler to a melt of the biodegradable polymer and blending using high shear equipment with special screw geometry. The masterbatch composition is then physically blended with additional biodegradable thermoplastic polymer and extrusion processed into final articles such as blown and cast films, molded products, and the like. The masterbatch multi-stage approach of the present invention results in a product that has improved physical properties and lower costs over that of a one step blend of the same amount of a biodegradable thermoplastic polymer and a filler that is subsequently heat formed into a final product.

    摘要翻译： 一种可生物降解的热塑性聚合物母料组合物，其包含至少一种含有均匀分散在其中的颗粒填料的高负荷的可生物降解的热塑性聚合物的共混物。 可生物降解的热塑性聚合物的量通常为约25重量％至约50重量％，并且填料的量为约75重量％至约50重量％，基于一种可生物降解聚合物的总量，并且至少 一个填料。 通过将填料的小颗粒加入可生物降解的聚合物的熔体中并且使用具有特殊螺杆几何形状的高剪切设备进行混合，期望获得填料的均匀分散体。 然后将母料组合物与另外的可生物降解的热塑性聚合物物理共混，并将其挤出加工成最终制品，如吹塑和流延薄膜，模塑制品等。 本发明的母料多阶段方法产生的产品具有相同量的可生物降解的热塑性聚合物和随后热成型为最终产品的填料的一步混合物的物理性能和成本， 。

    Biodegradable polymer masterbatch, and a composition derived therefrom having improved physical properties
    10.
    发明申请
    Biodegradable polymer masterbatch, and a composition derived therefrom having improved physical properties 有权
    可生物降解的聚合物母料和由其衍生的组合物具有改进的物理性能

    公开(公告)号：US20080064812A1

    公开(公告)日：2008-03-13

    申请号：US11981003

    申请日：2007-10-31

    申请人： Ramani Narayan ,  Sunder Balakrishnan ,  Donald Kubik ,  Mehmet Gencer

    发明人： Ramani Narayan ,  Sunder Balakrishnan ,  Donald Kubik ,  Mehmet Gencer

    IPC分类号： C08G63/60 ,  C08G63/78

    CPC分类号： C08J3/226 ,  C08J2400/14 ,  C08L2201/06

    摘要： A biodegradable thermoplastic polymer masterbatch composition comprising a blend of at least one biodegradable thermoplastic polymer containing high loading of a particulate filler uniformly dispersed therein. The amount of the biodegradable thermoplastic polymer is generally from about 25% to about 50% by weight and the amount of the filler is from about 75% to about 50% by weight, based upon the total amount of one biodegradable polymer and the at least one filler. The uniform dispersion of the fillers is desirably obtained by adding small particles of the filler to a melt of the biodegradable polymer and blending using high shear equipment with special screw geometry. The masterbatch composition is then physically blended with additional biodegradable thermoplastic polymer and extrusion processed into final articles such as blown and cast films, molded products, and the like. The masterbatch multi-stage approach of the present invention results in a product that has improved physical properties and lower costs over that of a one step blend of the same amount of a biodegradable thermoplastic polymer and a filler that is subsequently heat formed into a final product.

    摘要翻译： 一种可生物降解的热塑性聚合物母料组合物，其包含至少一种含有均匀分散在其中的颗粒填料的高负荷的可生物降解的热塑性聚合物的共混物。 可生物降解的热塑性聚合物的量通常为约25重量％至约50重量％，并且填料的量为约75重量％至约50重量％，基于一种可生物降解聚合物的总量，并且至少 一个填料。 通过将填料的小颗粒加入可生物降解的聚合物的熔体中并且使用具有特殊螺杆几何形状的高剪切设备进行混合，期望获得填料的均匀分散体。 然后将母料组合物与另外的可生物降解的热塑性聚合物物理共混，并将其挤出加工成最终制品，如吹塑和流延薄膜，模塑制品等。 本发明的母料多阶段方法产生的产品具有相同量的可生物降解的热塑性聚合物和随后热成型为最终产品的填料的一步混合物的物理性能和成本， 。