| 摘要 |
PURPOSE:To obtain a heat-sealable and microbial degradable film, excellent in mechanical properties, having a low combustion calorific value, capable of manifesting great heat shrinkability at low temperatures and having moistureproofness CONSTITUTION:This heat shrinkable aliphatic polyester film is formed of an aliphatic polyester, mainly synthesized from a glycol and an aliphatic dibasic acid or its derivative, having 2,000-100,000P melt viscosity at 190 deg.C temperature and 100 (sec<-1>) shearing rate, >=20,000 number-average molecular weigh and <=20g/10min MFR (at 190 deg.C). Furthermore, the resultant film has moistureproofness. |
