公开(公告)号：US5175049A

公开(公告)日：1992-12-29

申请号：US344328

申请日：1989-04-27

申请人： Georgia M. Huff ,  Kaelyn C. Koch ,  Mark W. Murphy ,  Christopher J. Thomas

发明人： Georgia M. Huff ,  Kaelyn C. Koch ,  Mark W. Murphy ,  Christopher J. Thomas

IPC分类号： B32B27/32 ,  B65D75/00

CPC分类号： B65D75/006 ,  B32B27/322 ,  Y10S428/913 ,  Y10T428/24992 ,  Y10T428/2826 ,  Y10T428/31913

摘要： A wrap-packaging film having differential cling is provided by a film laminate, said film laminate comprising at least two layers,at least one of which layers is an outer reverse layer comprising a linear very low density ethylene copolymer (LVLDPE) having a critical density of less than about 0.915 g/cc which contains a tackifier in an amount sufficient to impart thereto an effective level of cling properties,at least one of which layers comprises an obverse layer of an olefin polymer or copolymer, such as a linear low density ethylene copolymer (LLDPE) which has a critical density of not less than 0.916 g/cc which has little or no cling,and wherein the difference in density between the reverse layer and the obverse layer is at least about 0.004 g/cc,the said differential cling properties being manifested in the higher level of cling of the LVLDPE reverse layer as compared to that of the obverse layer.

摘要翻译： 具有差分粘附的包装膜通过薄膜层压材料提供，所述薄膜层压材料包括至少两层，其中至少一层是外反层，其包含具有临界密度的线性极低密度乙烯共聚物（LVLDPE） 小于约0.915g / cc，其含有足以赋予其粘合性能的有效量的增粘剂，其中至少一层包括烯烃聚合物或共聚物的正面层，例如线性低密度乙烯 共聚物（LLDPE），其临界密度不小于0.916g / cc，其具有很少或没有粘附，并且其中反层和正面层之间的密度差为至少约0.004g / cc，所述差分 与LVLDPE反层相比，正面层的粘附性越高，粘附性就越好。

公开(公告)号：US5472775A

公开(公告)日：1995-12-05

申请号：US108019

申请日：1993-08-17

申请人： Todd J. Obijeski ,  Georgia M. Huff ,  Rexford A. Maugans ,  Osborne K. McKinney

发明人： Todd J. Obijeski ,  Georgia M. Huff ,  Rexford A. Maugans ,  Osborne K. McKinney

IPC分类号： C08J5/18 ,  A61L15/24 ,  C08F210/16 ,  C08L23/00 ,  C08L23/02 ,  C08L23/06 ,  C08L23/08 ,  C08L23/16 ,  C09D123/02 ,  B32B33/00

CPC分类号： C08F210/16 ,  A61L15/24 ,  C08L23/0815 ,  C08L23/06 ,  Y10T428/26 ,  Y10T428/31504 ,  Y10T428/31855 ,  Y10T428/31931 ,  Y10T428/31938 ,  Y10T442/671

摘要： Elastic materials, particularly films, strips, coatings, ribbons and sheets made from at least one substantially linear ethylene polymer are disclosed which can be fabricated on conventional polyolefin extrusion equipment. They can be used to produce elastic composite structures that are stretchable and have recycle compatibility between elastic and non-elastic components. The novel materials have at least about 80% recovery at 100% strain and are especially useful in making fabricated composite articles (e.g., disposable diapers).

摘要翻译： 公开了由至少一种基本上线性的乙烯聚合物制成的弹性材料，特别是膜，条，涂层，带和片，其可以在常规聚烯烃挤出设备上制造。 它们可用于生产弹性复合结构，其可伸缩并且在弹性和非弹性组分之间具有循环相容性。 新型材料在100％应变下具有至少约80％的回收率，并且特别可用于制造复合制品（例如一次性尿布）。