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1. 发明授权

US06326068B1 Multi-layer hermetically sealable film 有权
标题翻译：多层密封膜
公开(公告)号：US06326068B1
公开(公告)日：2001-12-04
申请号：US09435559
申请日：1999-11-08
申请人： Dan-Cheng Kong , Richard A. Rehkugler , Donald F. Sexton
发明人： Dan-Cheng Kong , Richard A. Rehkugler , Donald F. Sexton
IPC分类号： B29D2200
摘要： A multi-layer film has an improved composite structure for providing hermetic seals to packages manufactured in high speed packaging apparatus. The structure of the multi-layer film includes layers A/B/C/D. Skin layer A is formed from polypropylene copolymer with melt flow rate greater than one or linear high density polyethylene with melt index greater than one. Core layer B is formed from polypropylene. Intermediate layer C has the primary function of compliance during sealing, and sealing layer D has the primary function of providing adhesivity to the completed seal. The sealing layer D includes an antiblocking agent comprising non-distortable organic polymer particles having an average particle size greater than 6 microns
摘要翻译：多层膜具有改进的复合结构，用于向高速包装设备中制造的包装提供气密密封。多层膜的结构包括层A / B / C / D。表层A由聚丙烯共聚物形成，其熔体流动速率大于一种或高达一线的高密度聚乙烯，其熔体指数大于1。芯层B由聚丙烯形成。中间层C在密封过程中具有一致性的主要功能，密封层D具有为完成的密封提供粘合性的主要功能。密封层D包括具有平均粒度大于6微米的不变形有机聚合物颗粒的防粘连剂

2. 发明授权

US06612356B2 Apparatus for improving film machinability during film sealing 失效
标题翻译：用于在膜密封期间提高膜机械加工性的装置
公开(公告)号：US06612356B2
公开(公告)日：2003-09-02
申请号：US09829745
申请日：2001-04-10
申请人： Dan-Cheng Kong , Richard A. Rehkugler , Donald F. Sexton
发明人： Dan-Cheng Kong , Richard A. Rehkugler , Donald F. Sexton
IPC分类号： B29D2300
CPC分类号： B32B27/08 , B29C53/52 , B29C65/18 , B29C66/0044 , B29C66/1122 , B29C66/133 , B29C66/4322 , B29C66/49 , B29C66/71 , B29C66/7212 , B29C66/723 , B29C66/72321 , B29C66/7234 , B29C66/73921 , B29C66/73941 , B29C66/8122 , B29C66/81264 , B29C66/81457 , B29C66/81821 , B29C66/8322 , B29C66/836 , B29C66/849 , B29K2995/005 , B29K2995/007 , B29L2023/22 , B32B1/08 , B32B7/12 , B32B2307/31 , B32B2439/70 , B32B2581/00 , Y10T156/1013 , Y10T156/1038 , B29K2827/18 , B29K2309/08 , B29K2023/12 , B29K2023/00
摘要： A back-up pad is provided over an anvil surface of a back-up plate, and between the anvil surface and a sealing surface of a sealing die, in an apparatus for forming seals between layers of film material. The back-up pad has a slip layer on one side thereof and a firm polymeric support layer on an opposite side thereof, the slip layer opposing the sealing face of the die so that the layers of film material pass between the sealing die and the back-up pad during seal formation. The polymeric support layer may have a Shore-A hardness of at least 10 at 20° C. and a dynamic loss tangent of less than 0.1 from 20° C. to 80° C. An example of a support layer is a polycarbonate pad, and an example of slip layer is a glass cloth coated with Teflon™. The back-up pad is particularly useful for forming lap seals in relatively thick film materials, such as laminated films having multi-layered films laminated together.
摘要翻译：在用于在膜材料层之间形成密封的装置中，备用垫设置在支撑板的砧座表面上，并且在砧座表面和密封模具的密封表面之间。支撑垫在其一侧上具有滑动层，在其相对侧上具有坚固的聚合物支撑层，滑动层与模具的密封面相对，使得薄膜材料层在密封模和背面之间通过在密封形成期间的垫。聚合物支撑层在20℃下的肖氏-A硬度至少为10，20℃至80℃的动态损耗角正切小于0.1。支撑层的一个实例是聚碳酸酯垫，并且滑动层的实例是涂覆有Teflon TM的玻璃布。备用垫对于在相对厚的膜材料中形成搭接密封件是特别有用的，例如层压在一起的多层膜的层压膜。

3. 发明授权

US5888648A Multi-layer hermetically sealable film and method of making same 失效
标题翻译：多层密封膜及其制造方法
公开(公告)号：US5888648A
公开(公告)日：1999-03-30
申请号：US706325
申请日：1996-09-12
申请人： Kevin M. Donovan , Dan-Cheng Kong , Leland Liu , Donald F. Sexton , Tien-Kuei Su
发明人： Kevin M. Donovan , Dan-Cheng Kong , Leland Liu , Donald F. Sexton , Tien-Kuei Su
IPC分类号： B32B27/08 , B32B7/06 , B32B7/12
CPC分类号： B32B7/06 , Y10T428/2817 , Y10T428/2826 , Y10T428/31797 , Y10T428/31909 , Y10T428/31913 , Y10T428/31917
摘要： The present invention is a multi-layer film which has an improved composite structure for providing hermetic seals to packages manufactured in high speed packaging apparatus. The structure of the multi-layer film of the present invention includes a main substrate and a sealant layer. The sealant layer, in turn, includes two components, an intermediate layer which has the primary function of compliance during sealing, and a sealing layer which has the primary function of providing adhesivity to the completed seal. As a result of this invention, high strength hermetic seals can be provided to multi-layer films effectively and efficiently, and hermetic seals are provided with the ability to be peeled open without destruction of several layers of the film.
摘要翻译：本发明是一种多层膜，其具有改进的复合结构，用于向高速包装设备中制造的包装提供气密密封。本发明的多层膜的结构包括主基材和密封剂层。密封剂层又包括两个部件，在密封期间具有主要功能的中间层，以及具有向完成的密封件提供粘附性的主要功能的密封层。作为本发明的结果，可以有效且高效地向多层膜提供高强度的气密密封，并且在没有破坏几层薄膜的情况下，提供剥离开口的能力。

4. 发明授权

US06503635B1 Metallized multi-layer film 失效
标题翻译：金属多层膜
公开(公告)号：US06503635B1
公开(公告)日：2003-01-07
申请号：US09435558
申请日：1999-11-08
申请人： Dan-Cheng Kong , Donald F. Sexton
发明人： Dan-Cheng Kong , Donald F. Sexton
IPC分类号： B32B1508
CPC分类号： B32B27/08 , B32B27/32 , B32B2255/10 , B32B2255/205 , B32B2307/518 , B32B2307/7242 , B32B2311/24 , B32B2323/10 , B32B2439/00 , C08L23/10 , C08L23/12 , C08L51/06 , C08L2207/12 , Y10S428/91 , Y10T428/31692 , Y10T428/31913 , C08L2666/04 , C08L2666/24
摘要： A metallized biaxially oriented film has at least one polypropylene layer and a metallized skin layer. This skin layer is formed from a blend of polymers including syndiotactic polypropylene. The polymer which is blended with the syndiotactic polypropylene may be a butylene-propylene copolymer or a graft copolymer of propylene and maleic anhydride. The film may include a separate non-metallized biaxially oriented film laminated to the metallized biaxially oriented film. The metal layer provides a barrier to oxygen and water vapor. The metallized film can be processed through package forming machines without damage to the metal barrier layer.
摘要翻译：金属化双轴取向膜具有至少一个聚丙烯层和金属化表皮层。该表皮层由包括间同立构聚丙烯的聚合物的共混物形成。与间同立构聚丙烯共混的聚合物可以是丁烯 - 丙烯共聚物或丙烯与马来酸酐的接枝共聚物。膜可以包括层压到金属化双轴取向膜上的单独的非金属化双轴取向膜。金属层为氧气和水蒸汽提供屏障。金属化膜可以通过封装成型机加工而不损坏金属阻挡层。

5. 发明授权

US5302442A Heat sealable base films 失效
标题翻译：可热封基膜
公开(公告)号：US5302442A
公开(公告)日：1994-04-12
申请号：US9161
申请日：1993-01-26
申请人： Jeffrey J. O'Brien , Donald F. Sexton
发明人： Jeffrey J. O'Brien , Donald F. Sexton
IPC分类号： B65D75/60 , B29C55/12 , B29C65/76 , B29K23/00 , B29L9/00 , B32B7/12 , B32B27/00 , B32B27/32 , B65D65/40 , B65D75/58 , C08F10/00 , C08F10/02 , C08F210/00 , C08F210/16 , B32B7/02
CPC分类号： B65D75/5855 , B32B27/32 , Y10S428/91 , Y10T428/2495 , Y10T428/2826 , Y10T428/31913
摘要： A base thermoplastic film, has a coextruded or coated heat seal layer formed from a polymer blend which provides good peel-apart heat seals. When the film is sealed to itself, the seal opens by separation at the original seal surface without film tear, or by delamination of the sealant material from the primary base film substrate without the formation of strands extending between the two base film. The heat seal layer which may be on one or both sides of the base layer comprises a ternary blend of a random ethylene-propylene copolymer, a butene polymer and a low density polyethylene.The films are cast, and oriented in the solid state up to about two times in the machine direction and six times or more in the transverse direction to give films having good dead-fold and water vapor transmission rate characteristics making them highly suited for packaging, particularly for dry foods.
摘要翻译：基底热塑性薄膜具有由聚合物共混物形成的共挤出或涂覆的热封层，其提供良好的剥离热封。当膜自身密封时，密封件通过在原始密封表面处的分离而打开，而没有膜撕裂，或者通过密封材料从初级基膜基材分层而不形成在两个基膜之间延伸的股线。可以在基层的一侧或两侧上的热封层包括无规乙烯 - 丙烯共聚物，丁烯聚合物和低密度聚乙烯的三元共混物。将薄膜铸造并在机械方向上定向至多约两倍，横向取向为六倍以上，得到具有良好的死水和透湿率特性的薄膜，使其非常适合于包装，特别是干性食物。

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