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    • 67. 发明授权
    • Biodegradable polyester resin composition
    • 可生物降解聚酯树脂组合物
    • US09371445B2
    • 2016-06-21
    • US14388954
    • 2013-03-29
    • Kaneka Corporation
    • Noriyuki SuzukiNobuo Nakamura
    • C08G63/60C08K5/10C08K5/103C08L67/02C08J5/18C08L67/04C08L101/16
    • C08L67/02C08J5/18C08J2300/16C08J2367/02C08J2367/04C08J2467/02C08J2467/04C08K5/103C08L67/04C08L101/16
    • This invention aims at improving the tear strength of a film and a sheet molded from a resin composition containing microorganism-produced aliphatic polyester. This invention relates to a biodegradable polyester resin composition containing polybutylene adipate terephthalate (PBAT) in the proportion of 60 to 400 parts by weight and modified-glycerin in the proportion of 10 to 50 parts by weight based on 100 parts by weight of aliphatic polyester (P3HA) having a repeating unit represented by Formula (1): [—CHR—CH2—CO—O—] (wherein R is an alkyl group represented by CnH2n+1 and n is an integer of 1 or more and 15 or lower) and a film or a sheet obtained by molding the biodegradable polyester resin composition in which the maximum major axis of phases containing the aliphatic polyester (P3HA) measured by a transmission electron microscopy analysis-image analysis method (TEM method) is 18 μm or lower and the average value is 8 μm or lower.
    • 本发明的目的在于提高膜和由含有微生物生产的脂肪族聚酯的树脂组合物成型的片材的撕裂强度。 本发明涉及以聚对苯二甲酸丁二醇酯(PBAT)为60〜400重量份的生物降解性聚酯树脂组合物,相对于100重量份的脂肪族聚酯为10〜50重量份的改性甘油 具有由式(1)表示的重复单元的化合物(其中R是由C n H 2n + 1表示的烷基,n是1以上且15以下的整数) 以及通过透射电子显微镜分析图像分析方法(TEM法)测定的含有脂肪族聚酯(P3HA)的相的最大长轴的生物降解性聚酯树脂组合物成型为18μm以下, 平均值为8μm以下。