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    • 6. 发明申请
    • Biodegradable Wrap Film
    • 可生物降解包装膜
    • US20080119584A1
    • 2008-05-22
    • US10598374
    • 2005-02-25
    • Tomoyuki NemotoJun Takagi
    • Tomoyuki NemotoJun Takagi
    • C08L67/04
    • C08L67/04C08J5/18C08J2367/04C08K5/098C08L67/02C08L71/00C08L2666/18C08L2666/22
    • A biodegradable wrap film simultaneously provided with cutting suitability, wrapping suitability, and heat resistance, in addition to biodegradability provided in lactic acid resin, is provided. The biodegradable wrap film contains a lactic acid resin composition as the main component and having a value of storage modulus at 40° C. in the range of 100 MPa to 3 GPa as measured at a frequency of 10 Hz and a distortion of 0.1% by the dynamic viscoelasticity testing method from Method A of JIS K-7198, a value of storage modulus at 100° C. in the range of 30 MPa to 500 MPa, and a peak value of loss tangent (tan δ) in the range of 0.1 to 0.8, was developed. This film displays excellent microwave oven suitability, in addition to resiliency and softness, and stretching and tensile strength suited for application in wrap film for household use.
    • 还提供除了在乳酸树脂中提供的生物降解性之外,还具有切割适合性,包装适用性和耐热性的生物降解性保鲜膜。 生物降解性保鲜膜含有乳酸树脂组合物作为主要成分,并且在10Hz的频率下测定的在40℃的储能模量值为100MPa〜3GPa,变形为0.1%的变形为 JIS K-7198的方法A的动态粘弹性试验方法,100℃下的储能模量值在30MPa〜500MPa的范围内,损耗角正切值(tanδ)为0.1 至0.8,被开发。 该膜除弹性和柔软性外,还具有优异的微波炉适用性,以及适用于家用包装膜的拉伸和拉伸强度。