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    • 47. 发明申请
    • Resin compostion and stretched film obtained by using the same
    • 通过使用它们获得的树脂组合物和拉伸膜
    • US20070032601A1
    • 2007-02-08
    • US10572385
    • 2004-09-17
    • Tsutomu TasakiToshihiro NishimuraHiroshi Inoue
    • Tsutomu TasakiToshihiro NishimuraHiroshi Inoue
    • C08L23/04
    • C08J5/18C08J2323/06C08J2323/08Y10S428/91Y10T428/31855Y10T428/31938
    • The present invention relates to a polyethylene-based stretched film having excellent Elmendorf tear strength and uniform stretchability. The invention relates to a polyethylene-based stretched film which is obtained by stretching a polyethylene-based resin, wherein (A-i) Em and Et, which represent the values of Elmendorf tear strength in the MD and TD directions, respectively, as measured in accordance with ASTM D1922, satisfy the following formulas 1, 2 and 3: 20≦Em[N/m]≦3000  (Formula 1) 20≦Et[N/m]≦3000  (Formula 2) 0.1≦(Em/Et)≦3  (Formula 3); (a-ii) the tensile initial modulus TM in the MD direction satisfies the following formula 4: 300≦TM[MPa]≦10000  (Formula 4); and (a-iii) the thickness is in the range of 5 to 150 μm, and is excellent in the stretch uniformity.
    • 本发明涉及具有优异的埃尔门多夫撕裂强度和均匀拉伸性的聚乙烯基拉伸膜。 本发明涉及通过拉伸聚乙烯类树脂而获得的聚乙烯基拉伸膜,其中(Ai)Em和Et分别代表根据MD和TD方向的埃尔曼多夫撕裂强度值 与ASTM D1922相符合下列公式1,2和3:<?in-line-formula description =“In-line formula”end =“lead”?> 20 <= Em [N / m] <= 3000 1)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line formula”end =“lead”?> 20 <= Et [N / m] <= 3000(公式2)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“铅”?> 0.1 <=(Em / Et)<= 3(式3); (a-ii)MD方向上的拉伸初始模量TM满足下列公式4:<?在线公式描述=“直线公式”end =“tail” =“在线公式”end =“lead”?> 300 <= TM [MPa] <= 10000(公式4); <?in-line-formula description =“In-line Formulas”end =“tail”?>和(a-iii)厚度在5至150μm的范围内,并且拉伸均匀性优异。