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    • 2. 发明授权
    • Resin composition and molded articles thereof
    • 树脂组合物及其成型体
    • US5916950A
    • 1999-06-29
    • US895828
    • 1997-07-17
    • Shoji ObuchiTakayuki WatanabeYasuhiro KitaharaTomoyuki NakataKazuhiko SuzukiMasanobu Ajioka
    • Shoji ObuchiTakayuki WatanabeYasuhiro KitaharaTomoyuki NakataKazuhiko SuzukiMasanobu Ajioka
    • C08L67/02C08L67/04C08K3/34
    • C08L67/02C08L67/04
    • A thermal resistant resin composition comprising 100 parts by weight of polyester (A) having 25-75% by weight of a lactic acid component consisting of 25-75% by weight of a lactic acid-based polymer (a1) and 25-75% by weight of other aliphatic polyester (a2) having a melting point of 100-250.degree. C., and 0.1-70 parts by weight of a crystalline inorganic filler (B) containing 10% by weight or more of SiO.sub.2. The thermal resistant resin composition of the invention performs following function:1) injection molding can be carried out at a mold temperature of Tg or less or around room temperature with a short molding-cycle,2) quick crystallization velocity and satisfactory crystallinity can be attained in the molding step, and3) the molded articles have, as a result, excellent thermal resistance and generate properties of low deterioration of a high polymer component and slow embrittlement in use.
    • 一种耐热性树脂组合物,其包含100重量份具有25-75重量%的由25-75重量%的乳酸基聚合物(a1)和25-75重量%的乳酸基聚合物(a1)组成的乳酸组分的聚酯(A) 的熔点为100-250℃的其它脂族聚酯(a2)和0.1-70重量份含有10重量%以上SiO 2的结晶无机填料(B)。 本发明的耐热树脂组合物具有以下功能:1)注塑成型可以在Tg或更低的温度下或在室温附近以较短的成型周期进行,2)快速结晶速度,并且可以获得令人满意的结晶度 在模塑步骤中,和3)模塑制品具有优异的耐热性,并且产生高聚合物组分的劣化劣化和使用中的缓慢脆化性能。