公开(公告)号：WO2011146468A1

公开(公告)日：2011-11-24

申请号：PCT/US2011/036788

申请日：2011-05-17

申请人： DOW GLOBAL TECHNOLOGIES LLC ,  MANDARE, Prashant ,  BUNKER, Gregory ,  PATEL, Rajen, M. ,  JIN, Yi ,  BENSASON, Selim ,  DEMIRORS, Mehmet ,  HERMEL-DAVIDOCK, Theresa, J. ,  HAYNE, Sarah, M. ,  RUIZ, Jose, E.

发明人： MANDARE, Prashant ,  BUNKER, Gregory ,  PATEL, Rajen, M. ,  JIN, Yi ,  BENSASON, Selim ,  DEMIRORS, Mehmet ,  HERMEL-DAVIDOCK, Theresa, J. ,  HAYNE, Sarah, M. ,  RUIZ, Jose, E.

IPC分类号： B32B27/32 ,  B65D65/40

CPC分类号： C08L23/0815 ,  B32B27/08 ,  B32B27/18 ,  B32B27/22 ,  B32B27/302 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/40 ,  B32B2250/24 ,  B32B2262/0261 ,  B32B2262/0276 ,  B32B2262/10 ,  B32B2262/106 ,  B32B2264/10 ,  B32B2270/00 ,  B32B2307/30 ,  B32B2307/31 ,  B32B2307/50 ,  B32B2307/51 ,  B32B2307/54 ,  B32B2307/5825 ,  B32B2307/71 ,  B32B2307/712 ,  B32B2307/72 ,  B32B2553/00 ,  C08F10/00 ,  C08L2205/02 ,  Y10T428/1352 ,  Y10T428/26 ,  Y10T428/266 ,  Y10T428/269 ,  Y10T428/31855 ,  C08L2666/06 ,  C08F4/64193

摘要： The instant invention provides a composition suitable for stretch hood, method of producing the same, and articles made therefrom. The multi-layer film according to the present invention has a thickness of at least 3 mils comprising at least one inner layer and two exterior layers, wherein the inner layer comprises at least 50 weight percent polyethylene copolymer having a melt index less than 2 grams/10 minutes, a density less than or equal to 0.910 g/cm 3 , a total heat of fusion less than 120 Joules/gram and a heat of fusion above 115°C of less than 5 Joules/gram, the total heat of fusion of the inner layer less than the heat of fusion of either of the two exterior layers, and wherein the multi-layer film has an elastic recovery of at least 40% when stretched to 100% elongation.

摘要翻译： 本发明提供了适用于拉伸罩的组合物，其制造方法以及由其制成的制品。 根据本发明的多层膜具有至少3密耳的厚度，包括至少一个内层和两个外层，其中内层包含至少50重量％的熔体指数小于2克/ 10分钟，密度小于或等于0.910g / cm 3，熔化总热量小于120焦耳/克，熔融热在115℃以上小于5焦耳/克，熔融热的总热量 内层小于两个外层之一的熔化热，并且其中当拉伸至100％伸长时，多层膜具有至少40％的弹性回复率。