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1. 发明授权

US4418114A Coextruded thermoplastic stretch-wrap 失效
标题翻译：共挤出热塑性拉伸包装
公开(公告)号：US4418114A
公开(公告)日：1983-11-29
申请号：US407205
申请日：1982-08-11
申请人： William F. Briggs , Edward M. Bullard
发明人： William F. Briggs , Edward M. Bullard
IPC分类号： B32B27/32 , B32B7/02 , B32B27/08 , B65B53/00
CPC分类号： B32B27/32 , Y10S428/911 , Y10T428/24992 , Y10T428/31913 , Y10T428/31917 , Y10T428/3192 , Y10T428/31931 , Y10T428/31938
摘要： This present invention relates to novel coextruded thermoplastic film and the employment of such multi-layer film as stretch-wrap material for packaging of goods, including relatively large palletized loads of material. More specifically, such coextruded stretch-wrap films comprise three-layer laminations having a relatively thin skin layer and a relatively thicker core layer. Suitable skin layers include highly-branched low-densty polyethylene, and suitable core layers include linear low-density polyethylene co-polymers, such as ethylene co-polymerized with a minor amount of at least one C.sub.4 to C.sub.10 alpha-olefin, such as octene-1 and 4-methyl-pentene-1, and butene-1.
摘要翻译：本发明涉及新型共挤出热塑性薄膜，并且使用这种多层薄膜作为用于包装物品的拉伸包装材料，包括较大的堆垛物料的载荷。更具体地说，这种共挤出的拉伸包裹膜包括具有相对薄的表皮层和相对较厚的芯层的三层叠片。合适的表层包括高度支化的低密度聚乙烯，并且合适的核心层包括线性低密度聚乙烯共聚物，例如与少量至少一种C 4至C 10α-烯烃共聚的乙烯如辛烯 -1和4-甲基 - 戊烯-1和丁烯-1。

2. 发明授权

US4399180A Coextruded thermoplastic stretch-wrap 失效
标题翻译：共挤出热塑性拉伸包装
公开(公告)号：US4399180A
公开(公告)日：1983-08-16
申请号：US373079
申请日：1982-04-29
申请人： William F. Briggs , Edward M. Bullard
发明人： William F. Briggs , Edward M. Bullard
IPC分类号： B32B27/32 , B32B7/02 , B32B27/08
CPC分类号： B32B27/32 , Y10S428/911 , Y10T428/24942 , Y10T428/2495 , Y10T428/24992 , Y10T428/31913 , Y10T428/31938
摘要： This present invention relates to novel coextruded thermoplastic film and the employment of such multi-layer film as stretch-wrap material for packaging of goods, including relatively large palletized loads of material. More specifically, such coextruded stretch-wrap films comprise three-layer laminations having a relatively thin skin layer and a relatively thicker core layer. Suitable skin layers include highly-branched low-density polyethylene, and suitable core layers include linear low-density polyethylene co-polymers, such as ethylene co-polymerized with a minor amount of at least one C.sub.4 to C.sub.10 alpha-olefin, such as octene-1 and 4-methyl-pentene-1, and butene-1.
摘要翻译：本发明涉及新型共挤出热塑性薄膜，并且使用这种多层薄膜作为用于包装物品的拉伸包装材料，包括较大的堆垛物料的载荷。更具体地说，这种共挤出的拉伸包裹膜包括具有相对薄的表皮层和相对较厚的芯层的三层叠片。合适的表层包括高度支化的低密度聚乙烯，合适的芯层包括线性低密度聚乙烯共聚物，例如与少量至少一种C 4至C 10α-烯烃共聚的乙烯如辛烯 -1和4-甲基 - 戊烯-1和丁烯-1。

3. 发明授权

US5683340A Method of making easy open thermoplastic bag 失效
标题翻译：制作易开式热塑性袋的方法
公开(公告)号：US5683340A
公开(公告)日：1997-11-04
申请号：US392645
申请日：1995-02-23
申请人： William P. Belias , Edward M. Bullard , Carl R. Letendre
发明人： William P. Belias , Edward M. Bullard , Carl R. Letendre
IPC分类号： B65D33/16 , B31B23/02
CPC分类号： B65D33/1608 , Y10T83/4801 , Y10T83/6595
摘要： There is provided a thermoplastic film bag having at least two integral members that facilitate opening the bag. The bag is manufactured from a flattened tube of thermoplastic material which may be distinctively severed along independent phase shifted sinusoidal oscillating paths down the center of the collapsed tube. The bag may have two opposed tie members which are offset from the vertical center axis of the bag and from each other. The tie members may be grasped and pulled apart to facilitate the easy opening of the bag. The tie members may then be tied together to form a strong member by which the bag may be picked up and carried. In alternate embodiments the shape of the integral tie members can be modified to create a bag having only the easy open feature with no tie members. A method for making the bag is also described.
摘要翻译：提供一种热塑性薄膜袋，其具有便于打开袋子的至少两个整体构件。该袋由热塑性材料的扁平管制成，其可以沿着塌缩管的中心的独立相移的正弦振荡路径而被明显地切断。袋子可以具有从袋子的垂直中心轴线彼此偏移的两个相对的连接件。领带构件可以被抓住并拉开，以便于容易打开袋子。领带构件然后可以被捆绑在一起以形成强力构件，通过该构件可以拾取和携带袋子。在替代实施例中，一体式连接件的形状可以被修改以产生仅具有没有接合部件的容易打开特征的袋子。还描述了制造袋子的方法。

4. 发明授权

US4973171A Closable plastic bag 失效
标题翻译：可关闭的塑料袋
公开(公告)号：US4973171A
公开(公告)日：1990-11-27
申请号：US375554
申请日：1989-07-05
申请人： Edward M. Bullard
发明人： Edward M. Bullard
IPC分类号： B65D33/30
CPC分类号： B65D33/30 , Y10S383/905
摘要： A plastic bag, such as a trash bag or the like, of linear low density polyethylene or a blend of low density polyethylene and low density polyethylene has a closure portion along its open end. The closure portion is of a plastic having dead fold properties, such as oriented high density polyethylene or polystyrene. The bag can be closed by twisting the closure portion. The dead fold property of the closure portion will maintain the twisted condition of the closure portion to maintain the bag closed.
摘要翻译：线性低密度聚乙烯或低密度聚乙烯和低密度聚乙烯的混合物的塑料袋例如垃圾袋等具有沿其开口端的封闭部分。封闭部分是具有死折叠性质的塑料，例如取向的高密度聚乙烯或聚苯乙烯。可以通过扭转封闭部分来封闭袋子。封闭部分的死褶特性将保持封闭部分的扭曲状态以保持袋子封闭。

5. 发明授权

US06544382B2 Apparatus for high-speed heating and cooling of a polymer 失效
标题翻译：用于高速加热和冷却聚合物的装置
公开(公告)号：US06544382B2
公开(公告)日：2003-04-08
申请号：US09440201
申请日：1999-11-15
申请人： William P. Belias , Edward M. Bullard , Robert T. Maddock
发明人： William P. Belias , Edward M. Bullard , Robert T. Maddock
IPC分类号： B32B3100
CPC分类号： B29C66/81811 , B29C65/222 , B29C65/30 , B29C65/38 , B29C66/0042 , B29C66/1122 , B29C66/349 , B29C66/43 , B29C66/45 , B29C66/71 , B29C66/8122 , B29C66/81262 , B29C66/81422 , Y10T156/1313 , B29K2905/08 , B29K2023/06 , B29K2067/00
摘要： An apparatus and method for heating and cooling a polymer structure employs a tube structure. The tube structure includes a conductive tube and a conductive strip. The tube is composed of a first conductive material having a first electrical resistivity, and the strip is composed of a second conductive material having a second electrical resistivity less than the first resistivity. The strip is connected to only a portion of an outer surface of the tube and extends along a length of the tube. In the method, an impulse of electric current is passed through the tube structure until the strip is heated to a predetermined sealing temperature. The strip and the polymer structure are brought into contact with each other for a dwell time sufficient to generate a heat seal in the polymer structure. A cooling medium is passed through the tube to cool the strip to a predetermined release temperature that facilitates release of the strip from the polymer structure.
摘要翻译：用于加热和冷却聚合物结构的装置和方法采用管结构。管结构包括导电管和导电条。管由具有第一电阻率的第一导电材料组成，并且该带由具有小于第一电阻率的第二电阻率的第二导电材料组成。条带仅连接到管的外表面的一部分并且沿着管的长度延伸。在该方法中，电流脉冲通过管结构，直到条被加热到预定的密封温度。带和聚合物结构彼此接触一段停留时间，足以在聚合物结构中产生热密封。将冷却介质通过管子以将条带冷却至预定的释放温度，这有利于条带从聚合物结构的释放。

6. 发明授权

US4842421A Thermoplastic draw tape bag with tacky closure surface 失效
标题翻译：热塑性拉带胶带，具有粘性表面
公开(公告)号：US4842421A
公开(公告)日：1989-06-27
申请号：US195919
申请日：1988-05-19
申请人： Edward M. Bullard , Fox J. Herrington
发明人： Edward M. Bullard , Fox J. Herrington
IPC分类号： B65D33/20 , B65D33/28
CPC分类号： B65D33/20 , B65D33/28
摘要： A thermoplastic draw tape bag having a tacky surface on the inside lip of the mouth of the bag and extending around the inner periphery of the lip on the open mouth of the bag, the surface comprising a material having the characteristic of sticking to itself and being adapted to seal the open mouth and hold the bag closed after the draw tape is pulled tight. In one form of the invention, the tacky surface comprises a coating of glycerol mono-oleate. The surface may also comprise a layer of polyvinylidene chloride or a layer of polyisobutylene.
摘要翻译：一种热塑性拉伸带袋，其在袋的口部的内唇上具有粘性表面，并且在袋的开口处围绕唇缘的内周延伸，该表面包括具有粘附于其自身的特性的材料在拉紧拉绳后，适于密封开口并将袋子关起来。在本发明的一种形式中，粘性表面包含甘油单油酸酯的涂层。表面还可以包括聚偏二氯乙烯层或聚异丁烯层。

7. 发明授权

US5902684A Multilayered Metallocene stretch wrap films 失效
标题翻译：多层茂金属拉伸包膜
公开(公告)号：US5902684A
公开(公告)日：1999-05-11
申请号：US886953
申请日：1997-07-02
申请人： Edward M. Bullard , David V. Dobreski , George N. Eichbauer , Richard E. Leone , W. Mark Dutt
发明人： Edward M. Bullard , David V. Dobreski , George N. Eichbauer , Richard E. Leone , W. Mark Dutt
IPC分类号： B32B27/32
CPC分类号： B32B27/32 , Y10T428/31909 , Y10T428/31913 , Y10T428/31928
摘要： A multilayer, thermoplastic stretch wrap film containing at least four polymeric film layers and comprised of a first outer cling layer, a second outer cling layer, at least one inner polymeric layer and at least one core layer. The first and second layers have a cling force to s each other of at least about 140 grams/inch. The stretch wrap film has at least one inner polymeric layer, located between the first and second layers. The inner polymeric layer comprises a low polydispersity polymer. The low polydispersity polymer has a polydispersity of from about 1 to about 4, a melt index (I.sub.2) of from about 0.5 to about 10 g/10 min., and a melt flow ratio (I.sub.20 /I.sub.2) of from about 12 to about 22. The core layer, also located between the outer cling layers, comprises either a random copolymer of propylene and ethylene, a heterophasic copolymer of propylene with domains of ethylene interspersed, a polypropylene homopolymer, or blends thereof. The random ethylene-propylene copolymer has a melt flow ratio of from about 2 to about 15 and an ethylene content in the range of from about 2 to about 6 wt. % of the propylene copolymer. The heterophasic copolymer has a melt flow ratio of about 10 to about 18 and an ethylene content in the range of from about 12 to 30 wt. % of the heterophasic propylene. The polypropylene homopolymer has a melt flow ratio of from about 2 to about 15. The multilayer stretch wrap film has a maximum stretch of at least 340% and a machine direction stress force @ 200% elongation of between about 1400 and about 1900 psi. It is contemplated that additional layers may be added to the present invention.
摘要翻译：包含至少四个聚合物膜层并由第一外部粘合层，第二外部粘合层，至少一个内部聚合物层和至少一个核心层组成的多层热塑性拉伸保鲜膜。第一层和第二层具有至少约140克/英寸的彼此之间的粘附力。拉伸保鲜膜具有位于第一和第二层之间的至少一个内部聚合物层。内部聚合物层包含低分散性聚合物。低分散性聚合物的多分散性为约1至约4，熔体指数（I 2）为约0.5至约10g / 10分钟，熔体流动比（I20 / I2）为约12至约也位于外部粘合层之间的芯层包括丙烯和乙烯的无规共聚物，丙烯与分散的乙烯的畴的多相共聚物，聚丙烯均聚物或其共混物。无规乙烯 - 丙烯共聚物的熔体流动比为约2至约15，乙烯含量为约2至约6重量％。％的丙烯共聚物。多相共聚物的熔体流动比为约10至约18，乙烯含量为约12至30重量％。％的异相丙烯。聚丙烯均聚物具有约2至约15的熔体流动比。多层拉伸保鲜膜具有至少340％的最大拉伸和200％伸长率在约1400至约1900psi之间的机器方向应力。预期可以向本发明添加附加层。

8. 发明授权

US5989725A Clear high molecular weight film 失效
标题翻译：清除高分子量薄膜
公开(公告)号：US5989725A
公开(公告)日：1999-11-23
申请号：US785003
申请日：1997-01-16
申请人： Edward M. Bullard , Thomas A. White
发明人： Edward M. Bullard , Thomas A. White
IPC分类号： B32B27/32
CPC分类号： B32B27/32 , Y10T428/31913
摘要： A polymeric multilayer film is disclosed that has improved optical qualities while having structural qualities that are not significantly compromised. The film is composed of outer film layers of a low polydispersity polymer which are placed around at least one inner film layer of a high molecular weight high density polyethylene (HDPE) polymer. The outer film layer polymer has a polydispersity of from about 1 to about 4. In a preferred embodiment this low polydispersity polymer is formed in the presence of a metallocene catalyst. The inner film layer high molecular weight HDPE polymer has a melt index of less than 0.1 and a density of at least about 0.940 g/cm.sup.3. Any of the layers of the film may be constructed of polymer blends.
摘要翻译：公开了一种聚合物多层膜，其具有改善的光学质量，同时具有不显着损害的结构质量。该膜由低分散性聚合物的外膜层组成，其位于高分子量高密度聚乙烯（HDPE）聚合物的至少一个内膜层周围。外层膜聚合物的多分散性为约1至约4.在优选的实施方案中，该低分多分散性聚合物是在金属茂催化剂存在下形成的。内层膜高分子量HDPE聚合物的熔体指数小于0.1，密度至少约0.940g / cm3。膜的任何层可以由聚合物共混物构成。

9. 发明授权

US5044774A Hold-open bag top 失效
标题翻译：保持开放的袋子顶部
公开(公告)号：US5044774A
公开(公告)日：1991-09-03
申请号：US599268
申请日：1990-10-16
申请人： Edward M. Bullard , Stephen K. Guerrera , Fox J. Herrington , Ivy Wolpin
发明人： Edward M. Bullard , Stephen K. Guerrera , Fox J. Herrington , Ivy Wolpin
IPC分类号： B65D33/00 , B65D33/30
CPC分类号： B65D33/007 , B65D33/30
摘要： A thermoplastic bag having a flexible top has a stiff strip around the mouth of the bag which when rolled outward bends to hold open the bag.
摘要翻译：具有柔性顶部的热塑性袋子具有围绕袋口的硬条，当向外滚动以弯曲以保持打开袋时。

10. 发明授权

US4813793A Reinforced handle for thermoplastic draw tape bags 失效
标题翻译：热塑拉链胶带袋加强手柄
公开(公告)号：US4813793A
公开(公告)日：1989-03-21
申请号：US201723
申请日：1988-06-03
申请人： Kirk E. Belmont , Edward M. Bullard , Daniel J. DiBiasi , Edward W. Forman, Jr. , David E. McIntyre
发明人： Kirk E. Belmont , Edward M. Bullard , Daniel J. DiBiasi , Edward W. Forman, Jr. , David E. McIntyre
IPC分类号： B65D33/28
CPC分类号： B65D33/28
摘要： A padded reinforced handle for thermoplastic draw tape bags and method of making the same is disclosed. The padded hand-grip reinforcement for the draw tape handle is produced by folding a thermoplastic draw tape longitudinally into a V-shaped cross-section and inserting a predetermined quantity of padding material into the V-shaped cross section of the tape to provide a padded tape area at predetermined spaced intervals corresponding to the width of the draw tape bag. The padded tape section has a length adequate to provide a padded hand-grip reinforcement. The padded tapes are inserted into the hems of the draw tape bag with the padded tape section aligned with a central cut out opening intermediate the ends of the hems. The ends of the draw tape at the unpadded tape sections are secured to the ends of the respective hems so that when the padded tape section is gripped and pulled through the cut out openings in the hems to draw closed the open top of the bag, the padded hand-grip reinforcement minimizes the discomfort caused by roping at the hand area while the bag is under load. In a preferred form of the invention the padding material comprises a curable foam which is cured by ultraviolet light.
摘要翻译：公开了一种用于热塑性卷带袋的填充加固手柄及其制造方法。用于拉带手柄的填充的手握加强件通过将热塑性拉伸带纵向折叠成V形横截面并将预定量的填充材料插入到带的V形横截面中来产生，以提供填充胶带区域以对应于拉带带的宽度的预定间隔间隔。填充胶带部分具有足以提供填充的手柄加强件的长度。填充带被插入拉带袋的边缘，填充带部分与中间切口开口对齐，中间切口开口在中间的末端。无胶带部分的拉带的端部被固定到相应的折边的端部，使得当填充的带部分被夹紧并拉动通过折片中的切出开口以闭合袋的开口顶部时，填充的手柄加强件最大限度地减少了当袋子处于负载下时在手部区域产生的麻烦引起的不适。在本发明的优选形式中，填充材料包括通过紫外光固化的可固化泡沫。

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