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    • 5. 发明专利
    • Highly strong biodegradable resin composition and molded article
    • 高强度可生物降解树脂组合物和成型品
    • JP2003073539A
    • 2003-03-12
    • JP2001270059
    • 2001-09-06
    • Chisso CorpNissho Kkチッソ株式会社日祥株式会社
    • HIGASHIHARA MITSUHIRO
    • A01G13/00A01G13/02B32B27/36C08J5/18C08K5/09C08K5/53C08L3/02C08L67/04C08L101/16
    • PROBLEM TO BE SOLVED: To provide a polylactic acid-based biodegradable resin composition which gives molded articles, such as films, having large tear strengths and large tensile strengths, and to provide a polylactic acid/starch-based biodegradable resin composition having high biodegradability by further compounding a modified starch having good compatibility with the polylactic acid-based composition.
      SOLUTION: (1) The highly strong biodegradable resin composition comprises 100 pts.wt. of polylactic acid, 0.5 to 5 pts.wt. of a sugar alcohol and 1 to 10 pts.wt. of a benzoic acid compound. (2) The highly strong biodegradable resin composition according to (1), wherein a modified starch obtained by compounding starch, a plasticizer and water is compounded in an amount of 50 to 230 pts.wt. per 100 pts.wt. of the polylactic acid.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种聚乳酸类生物降解性树脂组合物,其能够提供具有大撕裂强度和大拉伸强度的成型体,例如膜,并且通过以下方式提供具有高生物降解性的聚乳酸/淀粉类生物降解性树脂组合物 进一步混合与聚乳酸类组合物具有良好相容性的改性淀粉。 解决方案:(1)高强度生物可降解树脂组合物包含100重量份 的聚乳酸,0.5〜5重量份 的糖醇和1至10重量份 的苯甲酸化合物。 (2)根据(1)所述的高强度生物降解性树脂组合物,其中通过配混淀粉,增塑剂和水得到的改性淀粉的配合量为50〜230重量份。 每100 pts.wt 的聚乳酸。