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1. 发明授权

US5789029A Stretch film and fabrication method 失效
标题翻译：拉伸膜和制造方法
公开(公告)号：US5789029A
公开(公告)日：1998-08-04
申请号：US599521
申请日：1996-01-30
申请人： David B. Ramsey , Kenneth B. Stewart
发明人： David B. Ramsey , Kenneth B. Stewart
IPC分类号： B65D65/40 , B29C47/00 , B32B27/32 , B32B37/00 , C08F8/00 , C08F210/02 , B32B27/08
CPC分类号： B32B27/322 , B29C47/0021 , B32B27/32 , B29C47/00 , Y10T428/24992 , Y10T428/28 , Y10T428/2813 , Y10T428/2826 , Y10T428/31855 , Y10T428/31909 , Y10T428/31913 , Y10T428/31917 , Y10T428/31924 , Y10T428/31931 , Y10T428/31938
摘要： Multilayer thermoplastic stretch wrap film having substantial one-sided cling properties is made without the use of polymers with high levels of n-hexane extractables, dissimilar polymer chemistries, or low molecular weight tackifiers. The reverse or cling layer comprises at least one homogeneously branched ethylene polymer composition having a density of about 0.90 g/cc or less and the obverse or non-cling layer comprises an propylene or ethylene polymer composition having a density greater than 0.90 g/cc. The multilayer film is particularly useful for load palletization end-use applications.
摘要翻译：在不使用具有高含量的正己烷可萃取物，不同聚合物化学或低分子量增粘剂的聚合物的情况下，制备具有基本上单面粘附性能的多层热塑性拉伸保鲜膜。反向或粘附层包含至少一种密度为约0.90g / cc或更低的均匀支化的乙烯聚合物组合物，并且正面或非粘结层包含密度大于0.90g / cc的丙烯或乙烯聚合物组合物。多层膜特别适用于装载码垛最终用途应用。

2. 发明授权

US5955205A Stretch cling film and fabrication method 失效
标题翻译：拉伸膜和制造方法
公开(公告)号：US5955205A
公开(公告)日：1999-09-21
申请号：US483786
申请日：1995-06-07
申请人： David B. Ramsey , Kenneth B. Stewart
发明人： David B. Ramsey , Kenneth B. Stewart
IPC分类号： B65D65/40 , B29C47/00 , B32B27/32 , B32B37/00 , C08F8/00 , C08F210/02
CPC分类号： B32B27/322 , B29C47/0021 , B32B27/32 , B29C47/00 , Y10T428/24992 , Y10T428/28 , Y10T428/2813 , Y10T428/2826 , Y10T428/31855 , Y10T428/31909 , Y10T428/31913 , Y10T428/31917 , Y10T428/31924 , Y10T428/31931 , Y10T428/31938
摘要： Multilayer thermoplastic stretch wrap film having substantial one-sided cling properties is made without the use of polymers with high levels of n-hexane extractables, dissimilar polymer chemistries, or low molecular weight tackifiers. The reverse or cling layer comprises at least one homogeneously branched ethylene polymer composition having a density of about 0.90 g/cc or less and the obverse or non-cling layer comprises an propylene or ethylene polymer composition having a density greater than 0.90 g/cc. The multilayer film is particularly useful for load palletization end-use applications.
摘要翻译：在不使用具有高含量的正己烷可萃取物，不同聚合物化学或低分子量增粘剂的聚合物的情况下，制备具有基本上单面粘附性能的多层热塑性拉伸保鲜膜。反向或粘附层包含至少一种密度为约0.90g / cc或更低的均匀支化的乙烯聚合物组合物，并且正面或非粘结层包含密度大于0.90g / cc的丙烯或乙烯聚合物组合物。多层膜特别适用于装载码垛最终用途应用。

3. 发明授权

US07754341B2 Films with superior impact resistance and improved catastrophic failure resistance under high strain rate 有权
标题翻译：在高应变率下具有优异抗冲击性和改善的灾难性破坏性能的薄膜
公开(公告)号：US07754341B2
公开(公告)日：2010-07-13
申请号：US10579429
申请日：2004-11-29
申请人： Wenbin Liang , David B. Ramsey , Staci A. DeKunder , Kalyan Sehanobish , Jesus Nieto , John L. Presa , Shaun E. Pirtle
发明人： Wenbin Liang , David B. Ramsey , Staci A. DeKunder , Kalyan Sehanobish , Jesus Nieto , John L. Presa , Shaun E. Pirtle
IPC分类号： B32B27/32 , B32B27/08
CPC分类号： B32B7/02 , B32B27/08 , B32B27/32 , B32B2323/04 , B32B2323/10 , B32B2553/00 , C08J5/18 , C08J2323/02 , Y10T428/26 , Y10T428/264 , Y10T428/265 , Y10T428/31909 , Y10T428/31938
摘要： Stretch films which exhibit good puncture and impact resistance while also exhibiting resistance to defect propagation are desired. The films of the present invention have an ultimate stretch of at least 200 percent, a dart impact strength of at least about 700 gms/mil and a catastrophic failure stretch of at least 95 percent of the elongation to break value (CF of 5 or less). The films preferably comprise at least 3 layers and preferably comprise at least 50 percent by weight of polyethylene polymers.
摘要翻译：期望具有良好的穿刺和抗冲击性，同时具有抗缺陷传播性能的拉伸膜。本发明的薄膜具有至少200％的极限拉伸强度，至少约700gms / mil的飞镖冲击强度和破裂伸长率的至少95％的灾难性破坏拉伸（CF为5或更小））。膜优选包含至少3层，优选包含至少50重量％的聚乙烯聚合物。

4. 发明授权

US5884453A Low-noise film unwrapping and device 失效
标题翻译：低噪音膜包装和装置
公开(公告)号：US5884453A
公开(公告)日：1999-03-23
申请号：US892559
申请日：1997-07-14
申请人： David B. Ramsey , Robert G. Vidaurri , Brad A. Cobler , Thomas Oswald
发明人： David B. Ramsey , Robert G. Vidaurri , Brad A. Cobler , Thomas Oswald
IPC分类号： B65B11/04 , B65B53/00
CPC分类号： B65B11/045
摘要： A method and device for unwrapping self-adhering films at reduced noise levels are disclosed. The method and device include means to maintain a sufficiently high unwrapping take-off angle during the unwrapping and dispensing or unwinding of film rollstock. Suitable means provide for substantial acceleration and adjustment of the rollstock rotational speed relative to the speed of the first power driven member of an unwrapping apparatus, or the use of one or more carefully positioned deflector members. The method and device is particularly useful in unwrapping and dispensing operations of high cling stretch wrap films involving the use of turntable-style power driven equipment as well as in unwrapping and unwinding operations of pressure-sensitive adhesive tapes.
摘要翻译：公开了以降低的噪声水平展开自粘膜的方法和装置。该方法和装置包括在薄膜卷筒的展开和分配或展开期间保持足够高的展开起飞角度的装置。合适的装置提供了相对于展开装置的第一动力驱动构件的速度或使用一个或多个精心定位的导流构件的卷筒转速的显着加速和调节。所述方法和装置在涉及使用转台式动力驱动设备的高粘附拉伸包装膜的展开和分配操作以及压敏粘合带的展开和展开操作中特别有用。

5. 发明授权

US5840430A Stretch cling film and fabrication method 失效
公开(公告)号：US5840430A
公开(公告)日：1998-11-24
申请号：US483784
申请日：1995-06-07
申请人： David B. Ramsey , Kenneth B. Stewart
发明人： David B. Ramsey , Kenneth B. Stewart
IPC分类号： B65D65/40 , B29C47/00 , B32B27/32 , B32B37/00 , C08F8/00 , C08F210/02 , B32B27/08
CPC分类号： B32B27/322 , B29C47/0021 , B32B27/32 , B29C47/00 , Y10T428/24992 , Y10T428/28 , Y10T428/2813 , Y10T428/2826 , Y10T428/31855 , Y10T428/31909 , Y10T428/31913 , Y10T428/31917 , Y10T428/31924 , Y10T428/31931 , Y10T428/31938
摘要： Multilayer thermoplastic stretch wrap film having substantial one-sided cling properties is made without the use of polymers with high levels of n-hexane extractables, dissimilar polymer chemistries, or low molecular weight tackifiers. The reverse or cling layer comprises at least one homogeneously branched ethylene polymer composition having a density of about 0.90 g/cc or less and the obverse or non-cling layer comprises an propylene or ethylene polymer composition having a density greater than 0.90 g/cc. The multilayer film is particularly useful for load palletization end-use applications.

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