申请人:Kao Corporation
公开号:EP2851388A1
公开(公告)日:2015-03-25
A sheet for thermoforming made of a polylactic acid resin composition containing a polylactic acid-based resin, a plasticizer, and a crystal nucleating agent, wherein the sheet has a thickness of from 0.1 to 1.5 mm, and wherein Re (cal) calculated by the following formula (A): Re (cal) = Re (obs)/d×10-6 (A), wherein Re (obs) is a phase difference (nm) measured at a wavelength selected from wavelengths of from 380 to 780 mm, and d is a thickness (mm) of the sheet, is within the range of 0.001 × 10-3 ≤ Re(cal) ≤ 1 × 10-3. The sheet for thermoforming of the present invention has a wide moldable temperature region, so that the sheet can be suitably used in various applications such as food containers, packaging materials for daily sundries and household electric appliances, industrial trays of industrial parts, and the like.
一种用于热成型的片材,由含有聚乳酸基树脂、增塑剂和晶核剂的聚乳酸树脂组合物制成,其中片材的厚度为0.1至1.5毫米,Re(cal)按下式(A)计算:Re(cal)=Re(obs)/d×10-6(A),其中Re(obs)是在选自380至780毫米的波长处测得的相位差(纳米),d是片材的厚度(毫米),在0.001×10-3≤Re(cal)≤1×10-3的范围内。本发明的热成型用板材具有较宽的可成型温度区域,因此可适用于食品容器、日用杂品和家用电器包装材料、工业部件的工业托盘等各种应用。