公开(公告)号：US08580388B2

公开(公告)日：2013-11-12

申请号：US13759246

申请日：2013-02-05

Applicant: Dow Global Technologies LLC

Inventor： Prashant Mandare ,  Gregory Bunker ,  Rajen M. Patel ,  Yi Jin ,  Selim Bensason ,  Mehmet Demirors ,  Theresa J. Hermel-Davidock ,  Sarah M. Hayne ,  Jose E. Ruiz

IPC: B32B27/00

CPC classification number: B32B27/32 ,  B32B1/08 ,  C08F10/00 ,  C08L23/0815 ,  C08L2205/02 ,  Y10T428/1352 ,  Y10T428/24942 ,  Y10T428/26 ,  Y10T428/266 ,  Y10T428/269 ,  Y10T428/31855 ,  C08L2666/06 ,  C08F4/64193 ,  C08L23/04 ,  C08F4/64137

Abstract: The instant invention provides a composition suitable for stretch hood, method of producing the same, and articles made therefrom. The article according to the present invention comprises a 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/cm3, 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.

Abstract translation: 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。 根据本发明的制品包括根据本发明的多层膜具有至少3密耳的厚度，其包含至少一个内层和两个外层，其中所述内层包含至少50重量％的聚乙烯共聚物，其具有 小于2克/ 10分钟的熔体指数，小于或等于0.910克/厘米3的密度，小于120焦耳/克的熔融热总和小于5焦耳/克的熔点在115℃以上， 克，内层的总熔化热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。

公开(公告)号：US20130149519A1

公开(公告)日：2013-06-13

申请号：US13759246

申请日：2013-02-05

Applicant: Dow Global Technologies LLC

Inventor： Prashant Mandare ,  Gregory Bunker ,  Rajen M. Patel ,  Yi Jin ,  Selim Bensason ,  Mehmet Demirors ,  Theresa J. Hermel-Davidock ,  Sarah M. Hayne ,  Jose E. Ruiz

IPC: B32B27/32

CPC classification number: B32B27/32 ,  B32B1/08 ,  C08F10/00 ,  C08L23/0815 ,  C08L2205/02 ,  Y10T428/1352 ,  Y10T428/24942 ,  Y10T428/26 ,  Y10T428/266 ,  Y10T428/269 ,  Y10T428/31855 ,  C08L2666/06 ,  C08F4/64193 ,  C08L23/04 ,  C08F4/64137

Abstract: The instant invention provides a composition suitable for stretch hood, method of producing the same, and articles made therefrom. The article according to the present invention comprises a 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/cm3, 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.

Abstract translation: 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。 根据本发明的制品包括根据本发明的多层膜具有至少3密耳的厚度，其包含至少一个内层和两个外层，其中所述内层包含至少50重量％的聚乙烯共聚物，其具有 小于2克/ 10分钟的熔体指数，小于或等于0.910克/厘米3的密度，小于120焦耳/克的熔融热总和小于5焦耳/克的熔点在115℃以上， 克，内层的总熔化热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。