Polylactic acid molding and process for producing the same
    5.
    发明申请
    Polylactic acid molding and process for producing the same 有权
    聚乳酸成型及其制造方法

    公开(公告)号:US20050165142A1

    公开(公告)日:2005-07-28

    申请号:US10505311

    申请日:2003-03-05

    摘要: A polylactic acid formed article and a production process therefor. A resin composition for the formed article comprises polylactic acid having an optical purity of not lower than 90% and a residual lactide amount of 0.1 to 0.6% by mass, and 1 to 25% by mass of a crystal nucleus agent. The formed article is characterized in that a difference (|ΔHm|−|ΔHc|) between the absolute value of a crystal fusion heat amount ΔHm as measured at a heat-up rate of 20° C./min by means of a differential scanning calorimeter and the absolute value of a heat-up crystallization heat amount ΔHc generated by heat-up crystallization is not lower than 25 J/g, and has a crystallinity of not lower than 35% as determined by X-ray measurement and a crystallization speed of not lower than 0.05 min−1 at 130° C.

    摘要翻译: 聚乳酸成型体及其制造方法。 成型体用树脂组合物含有光学纯度不低于90%,残留丙交酯量为0.1〜0.6质量%的聚乳酸和1〜25质量%的结晶核剂。 成型制品的特征在于,通过差示扫描在20℃/分钟的加热速度下测量的结晶熔合热量DeltaHm的绝对值之间的差值(| DeltaHm | - | DeltaHc |) 热量结晶所产生的加热结晶热量ΔHc的绝对值不低于25J / g,通过X射线测量和结晶速度测定结晶度不低于35% 在130℃下不低于0.05分钟-1

    Polylactic acid molding and process for producing the same
    6.
    发明授权
    Polylactic acid molding and process for producing the same 有权
    聚乳酸成型及其制造方法

    公开(公告)号:US07854880B2

    公开(公告)日:2010-12-21

    申请号:US10505311

    申请日:2003-03-05

    IPC分类号: B29C51/00 C08K3/34

    摘要: A polylactic acid formed article and a production process therefor. A resin composition for the formed article comprises polylactic acid having an optical purity of not lower than 90% and a residual lactide amount of 0.1 to 0.6% by mass, and 1 to 25% by mass of a crystal nucleus agent. The formed article is characterized in that a difference (|ΔHm|−|ΔHc|) between the absolute value of a crystal fusion heat amount ΔHm as measured at a heat-up rate of 20° C./min by means of a differential scanning calorimeter and the absolute value of a heat-up crystallization heat amount ΔHc generated by heat-up crystallization is not lower than 25 J/g, and has a crystallinity of not lower than 35% as determined by X-ray measurement and a crystallization speed of not lower than 0.05 min−1 at 130° C.

    摘要翻译: 聚乳酸成型体及其制造方法。 成型体用树脂组合物含有光学纯度不低于90%,残留丙交酯量为0.1〜0.6质量%的聚乳酸和1〜25质量%的结晶核剂。 成型体的特征在于,以20℃/分钟的升温速度测定的晶体熔融热量的绝对值Dgr; Hm之间的差异(|&Dgr; Hm | - |&Dgr; Hc |) 通过差示扫描量热计,通过加热结晶产生的加热结晶热量& Hc的绝对值不小于25J / g,并且具有不低于35%的结晶度,如通过 在130℃下X射线测量和结晶速度不低于0.05min-1