公开(公告)号：EP0776927A1

公开(公告)日：1997-06-04

申请号：EP96118630.1

申请日：1996-11-20

申请人： MITSUI TOATSU CHEMICALS, INC.

发明人： Ikado, Shuhei ,  Kuroki, Takayuki ,  Saruwatari, M., 134 Mitsui Toatsu Nishi-Eifuku ,  Kobayashi, N., 1-210, Mitsui Toatsu Takiharu-Ryo ,  Suzuki, Kazuhiko ,  Wanibe, Hirotaka

IPC分类号： C08J5/18 ,  C08K3/00

CPC分类号： C08J5/18 ,  C08J2367/04 ,  C08K3/01 ,  Y10S428/91 ,  Y10T428/256 ,  Y10T428/258 ,  Y10T428/259 ,  Y10T428/31786 ,  C08L67/04

摘要： The stretched film of the lactic acid-based polymer in the invention can degrade under natural environment, and additionally has an excellent mechanical strength and durability. By use of a lubricant in combination with an inorganic filler, these properties are further improved and thickness accuracy is enhanced. Consequently, the stretched film of the lactic acid-based polymerd in the invention can be widely applied to a prepaid card and other various film materials, lamination materials and packaging materials. Even though abandoned after use in the natural environment, the stretched film relatively quickly decomposes into carbon dioxide and water and does not accumulate as waste.

摘要翻译： 本发明的乳酸类聚合物的拉伸膜在自然环境下会降解，另外具有优异的机械强度和耐久性。 通过使用与无机填料组合的润滑剂，这些性能进一步提高，并且增加了厚度精度。 因此，本发明中的乳酸类聚合物的拉伸膜可以广泛地应用于预付卡和其他各种膜材料，层压材料和包装材料。 即使在天然环境使用后放弃，拉伸膜相对较快分解成二氧化碳和水分，不会作为废物积聚。