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1. 发明申请

WO1993023235A2 HEAT SEALING ASSEMBLY FOR POUCH-MAKING PACKAGING MACHINES 审中-公开
标题翻译：用于打包包装机的热封组件
公开(公告)号：WO1993023235A2
公开(公告)日：1993-11-25
申请号：PCT/CA1993000206
申请日：1993-05-07
申请人： DU PONT CANADA INC.
发明人： DU PONT CANADA INC. , PERRETT, Arnold, Edward
IPC分类号： B29C65/22
CPC分类号： B29C65/224 , B29C65/222 , B29C65/228 , B29C65/229 , B29C65/38 , B29C66/1122 , B29C66/4312 , B29C66/80 , B29C66/8122 , B29C66/81821 , B29C66/81871 , B29C66/8322 , B65B51/30 , B29K2909/08 , B29K2827/18
摘要： A heat sealing element and related self aligning support jaw, for sealing at least two layers (22) of thermoplastic film is disclosed. It may be used with a vertical form, fill and seal machine for packaging flowable materials, e.g. chocolate fudge, sundae topping, in pouches. The heat sealing element has a spade end (17) which extends from the electrical connection essentially to the edge of the thermoplastic film.
摘要翻译：公开了一种用于密封至少两层（22）热塑性薄膜的热封元件和相关的自对准支撑颚。它可以与垂直形式，填充和密封机器一起使用以包装可流动材料，例如巧克力软糖，圣代顶部，袋子。热封元件具有从电连接基本上延伸到热塑性薄膜边缘的铲形端（17）。

2. 发明申请

WO1993021003A1 HEAT SEALING ELEMENT FOR PACKAGING MACHINES WHICH MAKE LAP-SEALED POUCHES 审中-公开
标题翻译：用于包装机的热封件元件
公开(公告)号：WO1993021003A1
公开(公告)日：1993-10-28
申请号：PCT/CA1993000160
申请日：1993-04-14
申请人： DU PONT CANADA INC.
发明人： DU PONT CANADA INC. , PERRETT, Arnold, Edward
IPC分类号： B29C65/22
CPC分类号： B29C65/224 , B29C65/226 , B29C65/228 , B29C65/743 , B29C66/0042 , B29C66/0044 , B29C66/1122 , B29C66/3462 , B29C66/3472 , B29C66/4312 , B29C66/71 , B29C66/80 , B29C66/8122 , B29C66/81457 , B29C66/81811 , B29C66/81821 , B29C66/81871 , B29C66/849 , B29K2023/06 , B29K2077/00 , B29K2995/0067 , B29L2031/7128 , B65B51/30 , B29K2827/18 , B29K2909/08
摘要： A heat sealing element, for sealing and simultaneously cutting through at least two layers of thermoplastic film (29) is disclosed. It is particularly adapted for use with a vertical form, fill and seal machine for packaging flowable materials, e.g. chocolate fudge sundae topping, in a lap seamed pouch. The heat sealing element (12) has a portion (33), which has a greater electrical resistance than the remainder of the element, at the position where the lap seal is to be formed. The portion which has a greater electrical resistance is preferably a portion which is narrower than the remainder of the element, preferably 83 to 94 % of the width of the remainder of the element.
摘要翻译：公开了用于密封并同时切割穿过至少两层热塑性薄膜（29）的热封元件。它特别适用于垂直形式，填充和密封机器，用于包装可流动材料，例如。巧克力软糖圣代打顶，在一圈缝合袋。热密封元件（12）具有在要形成搭接密封件的位置处具有比元件的其余部分更大的电阻的部分（33）。具有较大电阻的部分优选为比元件的其余部分更窄的部分，优选为元件的其余部分的宽度的83至94％。

3. 发明申请

WO1993007189A1 CONTROL OF A SOLUTION PROCESS FOR POLYMERIZATION OF ETHYLENE 审中-公开
标题翻译：用于乙烯聚合的溶液方法的控制
公开(公告)号：WO1993007189A1
公开(公告)日：1993-04-15
申请号：PCT/CA1992000420
申请日：1992-09-25
申请人： DU PONT CANADA INC. , ZBORIL, Vaclav, George , BROWN, Stephen, John
发明人： DU PONT CANADA INC.
IPC分类号： C08F10/02
CPC分类号： C08F10/00 , C08F10/02 , C08F110/02 , C08F2/06 , C08F4/642 , C08F2500/01
摘要： A solution process for the preparation of high molecular weight polymers of alpha-olefins selected from the group consisting of homopolymers of ethylene and copolymers of ethylene and C3-C12 higher alpha-olefins is disclosed. Ethylene and/or mixtures of ethylene and C3-C12 higher alpha-olefins are polymerized under non-isothermal conditions in a tubular reactor or in a system of reactors which operate under different conditions, in the presence of a catalytic amount of a titanium-containing coordination catalyst in an inert solvent at a temperature in excess of 105 DEG C. The improvement is characterized in that: (a) the catalyst is activated with a solution of a mixture of aluminum alkyl and alkoxy aluminum alkyl in inert solvent; and (b) the process is controlled by adjusting the ratio of aluminum alkyl to alkoxy aluminum alkyl in the mixture of (a). The aluminum alkyl is of the formula AlRnX3-n and the alkoxy aluminum alkyl is of the formula AlR'mOR''3-m, in which each of R, R' and R'' is alkyl or aryl of 1-20 carbon atoms, X is halogen, n is 2-3 and m is 0-3.
摘要翻译：公开了一种用于制备选自乙烯均聚物和乙烯和C3-C12高级α-烯烃共聚物的α-烯烃的高分子量聚合物的溶液方法。乙烯和/或乙烯和C 3 -C 12较高级α-烯烃的混合物在非等温条件下在管式反应器或在不同条件下操作的反应器系统中，在催化量的含钛配位催化剂在惰性溶剂中的温度超过105℃。改进的特征在于：（a）催化剂用烷基铝和烷氧基铝的混合物在惰性溶剂中的混合物的活化; 和（b）通过调节（a）的混合物中烷基铝与烷氧基烷基铝的比例来控制该方法。烷基铝为式AlRnX3-n，烷氧基烷基为式AlR'mOR'3-m，其中R，R'和R“各自为1-20个碳原子的烷基或芳基，X为卤素，n为2-3，m为0-3。

4. 发明申请

WO1992019528A1 REUSABLE POUCH FITMENT 审中-公开
标题翻译：可重复使用的配件
公开(公告)号：WO1992019528A1
公开(公告)日：1992-11-12
申请号：PCT/CA1992000150
申请日：1992-04-10
申请人： DU PONT CANADA INC. , WIRSIG, Ralph, Carl , THOMPSON, John, Rowson
发明人： DU PONT CANADA INC.
IPC分类号： B67B07/86
CPC分类号： B67B7/26 , B05B11/00412 , B67B7/28
摘要： A spout is disclosed, for insertion into and securement to a plastic pouch. The spout has a film-puncturing end comprising a tube (22) and a removable plunger (34) adapted to move coaxially inside the tube. One end of the plunger (36) is conical and adapted topuncture film and expand an opening resulting from the puncture in a manner to lead the edges of the opening over the tube. The tube also is adapted (25) to permit the edges of the opening to move over the conical portion and thence over the outer periphery of the tube.
摘要翻译：公开了用于插入和固定到塑料袋的喷口。喷口具有膜穿刺端，其包括管（22）和适于在管内同轴移动的可移除柱塞（34）。柱塞（36）的一端是锥形和适应的穿刺膜，并且以穿过管的开口边缘的方式膨胀由穿刺产生的开口。该管还适于（25），以允许开口的边缘在锥形部分上移动，并且因此在管的外周上移动。

5. 发明申请

WO1992008670A1 APPARATUS FOR DISPENSING FLOWABLE MATERIALS FROM A POUCH 审中-公开
标题翻译：用于从POUCH分配流动材料的装置
公开(公告)号：WO1992008670A1
公开(公告)日：1992-05-29
申请号：PCT/CA1991000408
申请日：1991-11-13
申请人： DU PONT CANADA INC. , WIRSIG, Ralph, Carl , KING, David, Campbell
发明人： DU PONT CANADA INC.
IPC分类号： B67D05/02
CPC分类号： B67D7/0227 , B05C17/00583 , B05C17/01 , B67B7/28 , B67D1/0001
摘要： An improved piston for a pouch dispenser is disclosed. The dispenser is adapted to contain a pouch (52) of flowable material, and has lid (35) to keep the pouch within the dispenser and a piston which is adapted to move toward the lid and press against a first end (113) of the pouch, and push the flowable material out of the pouch through a hole in the second end of the pouch. The piston (47) has a peripheral lip (115) extending towards the second end of the pouch. The peripheral lip extends for a length sufficient to cause the film from which the pouch is made to pleat (116) in a direction transverse to the longitudinal axis of the dispenser when the material in the pouch is squeezed from the pouch by the pressing action of the piston. The lid (35) and piston (47) are adapted to allow the peripheral lip to nest with the lid and to prevent the pleats from hindering essentially all of the material from being squeezed out of the pouch.
摘要翻译：公开了一种用于袋分配器的改进的活塞。分配器适于容纳可流动材料的袋（52），并且具有用于将袋保持在分配器内的盖（35）和适于朝向盖移动的活塞，并压靠在所述分配器的第一端（113）并且将可流动材料通过袋的第二端中的孔推出袋中。活塞（47）具有朝向小袋的第二端延伸的周缘（115）。外围唇缘延伸足够的长度，使得当袋子中的材料通过挤压作用挤压袋子时，导致袋子沿垂直于分配器的纵向轴线的方向褶皱（116）活塞。盖（35）和活塞（47）适于允许外围唇缘与盖子嵌套，并且防止褶皱基本上阻碍所有的材料被挤出袋子。

6. 发明申请

WO1991016611A1 POUCH TESTER 审中-公开
公开(公告)号：WO1991016611A1
公开(公告)日：1991-10-31
申请号：PCT/CA1991000115
申请日：1991-04-05
申请人： DU PONT CANADA INC. , RILEY, David, Clifford
发明人： DU PONT CANADA INC.
IPC分类号： G01M03/36
CPC分类号： G01M3/3218 , G01M3/36 , G01N3/12
摘要： A portable pouch tester is disclosed. The pouch (28) is placed between two plates (12, 19), one of which is stationary (12) and the other of which is movable (19) and adapted to squeeze the pouch (28) between the two plates (12, 19). The movable plate (19) has a pressure sensing device (21) therein to determine the pressure under which the pouch (28) is subjected. The pressure which causes the pouch (28) to burst or leak may then be determined.
摘要翻译：公开了便携式袋测试器。袋（28）被放置在两个板（12,19）之间，其中一个是静止的（12），另一个是可移动的（19）并且适于将袋（28）挤压在两个板 19）。可移动板（19）在其中具有压力感测装置（21），以确定袋（28）所受的压力。然后可以确定导致袋（28）爆裂或泄漏的压力。

7. 发明申请

WO1990015662A1 PERFLUORODIOXOLE MEMBRANES 审中-公开
标题翻译：全氟代膜
公开(公告)号：WO1990015662A1
公开(公告)日：1990-12-27
申请号：PCT/CA1990000195
申请日：1990-06-13
申请人： DU PONT CANADA INC. , E.I. DU PONT DE NEMOURS AND COMPANY
发明人： DU PONT CANADA INC. , E.I. DU PONT DE NEMOURS AND COMPANY , NEMSER, Stuart, Marshall , ROMAN, Ian, Charles
IPC分类号： B01D71/44
CPC分类号： B01D71/32 , B01D53/228 , B01D71/44 , B01D71/76
摘要： A selectively permeable membrane for the separation or enrichment of gaseous mixtures may be formed from amorphous polymers of perfluoro-2,2-dimethyl-1,3-dioxole, especially copolymers with a complementary amount of at least one of tetrafluoroethylene, perfluoromethyl vinyl ether, vinylidene fluoride and chlorotrifluoroethylene. Preferably, the polymer is a dipolymer containing 65-99 mole % of perfluoro-2,2-dimethyl-1,3-dioxole and having a glass transition temperature of at least 140 DEG C. The membranes may be used for the separation or enrichment of a wide variety of gaseous mixtures, including oxygen enrichment of air, and separation or enrichment of gaseous organic compounds in admixture with air, including separation or enrichment of the amount of fluorocarbon gases in air. The membranes exhibit a very high flux rate, compared with other glassy organic polymer membranes.
摘要翻译：用于分离或富集气态混合物的选择性渗透膜可以由全氟-2,2-二甲基-1,3-二氧杂环戊烯的无定形聚合物形成，特别是具有互补量的四氟乙烯，全氟甲基乙烯基醚，偏二氟乙烯和氯三氟乙烯。优选地，聚合物是含有65-99摩尔％全氟-2,2-二甲基-1,3-间二氧杂环并且具有至少140℃的玻璃化转变温度的二聚物。该膜可用于分离或富集各种气体混合物，包括空气富氧，以及气体有机化合物与空气的混合分离或富集，包括分离或富集空气中碳氟化合物气体的量。与其他玻璃状有机聚合物膜相比，膜的通量速率非常高。

8. 发明申请

WO1993022673A1 FLOW RESTRICTOR-SEPARATION DEVICE 审中-公开
标题翻译：流量限制器分离装置
公开(公告)号：WO1993022673A1
公开(公告)日：1993-11-11
申请号：PCT/CA1993000173
申请日：1993-04-23
申请人： DU PONT CANADA INC. , E.I. DU PONT DE NEMOURS AND COMPANY
发明人： DU PONT CANADA INC. , E.I. DU PONT DE NEMOURS AND COMPANY , ADAMS, George, Allen , LUOMA, Robert, Paul, II
IPC分类号： G01N33/483
CPC分类号： G01N33/491 , B01L3/50215 , Y10T436/25375
摘要： A method of partitioning a pre-selected phase of a sample of liquid having a plurality of phases of differing densities, a separation device and a tube containing the separation device. The sample of liquid is placed in a first chamber of a linear tube that is separated from a second chamber by a separation device. The separation device slidably engages the interior surface of the tube in an essentially fluid-tight manner and has an axial orifice on the longitudinal axis of the tube that is in fluid flow communication with a flow-restriction channel. The phases are ordered concentrically by rotating the tube around its longitudinal axis e.g. in an axial centrifuge. The volume of the first chamber is reduce by movement of the separation device within the tube, that phase of the liquid located axially within the first chamber flowing into the axial orifice and passing through the flow-restriction channel into the second chamber. The reduction of the volume of the first chamber is controlled using phase-separation information. The method is useful in separation of blood components.

9. 发明申请

WO1993021001A1 HEAT SEALING JAW ASSEMBLY 审中-公开
标题翻译：热封密封装置
公开(公告)号：WO1993021001A1
公开(公告)日：1993-10-28
申请号：PCT/CA1993000161
申请日：1993-04-14
申请人： DU PONT CANADA INC.
发明人： DU PONT CANADA INC. , PERRETT, Arnold, Edward
IPC分类号： B29C65/18
CPC分类号： B29C65/7841 , B29C65/224 , B29C65/226 , B29C65/38 , B29C65/7433 , B29C66/0044 , B29C66/00461 , B29C66/1122 , B29C66/3432 , B29C66/4312 , B29C66/73921 , B29C66/80 , B29C66/8122 , B29C66/81417 , B29C66/81427 , B29C66/81457 , B29C66/8167 , B29C66/81821 , B29C66/81871 , B29C66/83221 , B29C66/849 , B29K2101/12 , Y10T156/1054 , Y10T156/1313 , B29C65/00 , B29K2827/18 , B29K2909/08
摘要： A heat sealing assembly, for sealing through at least two layers of thermoplastic film is disclosed. It is particularly adapted for use with a vertical form, fill and seal machine for packaging flowable materials. The heat sealing assembly comprises two jaws, resilient clamping elements (14-16) and a heat sealing element (11), at least one of the jaws being capable of transverse motion and adapted to collapse a tubular film made from the thermoplastic film and passing between the jaws, each of said jaws having said element mounted thereon, said clamping elements being adapted to grip thermoplastic film (25) which passes therebetween and urge said gripped film towards said jaws when the jaws close and to release said film when the jaws open. Clamping is accomplished without an activating device other than the jaws themselves. Preferably there are clamping elements on both sides of the jaws. Preferably the clamping elements are made of a flexible rubber.
摘要翻译：公开了一种用于密封通过至少两层热塑性薄膜的热封组件。它特别适用于垂直形式，填充和密封机器，用于包装可流动材料。热封组件包括两个钳口，弹性夹紧元件（14-16）和热密封元件（11），至少一个钳口能够横向运动并且适于折叠由热塑性膜制成的管状膜并通过在所述夹爪之间，每个所述夹爪具有安装在其上的所述元件，所述夹紧元件适于夹持热塑性薄膜（25），所述热塑性薄膜（25）通过其间，当所述夹爪关闭时将所述夹持的薄膜推向所述夹爪，并且当所述夹爪打开时，释放所述薄膜。夹具在没有夹爪本身以外的启动装置的情况下完成。优选地，在钳口的两侧上存在夹紧元件。优选地，夹紧元件由柔性橡胶制成。

10. 发明申请

WO1993007187A1 CATALYST FOR ETHYLENE POLYMERIZATION AT HIGH TEMPERATURES 审中-公开
标题翻译：乙烯聚合在高温下的催化剂
公开(公告)号：WO1993007187A1
公开(公告)日：1993-04-15
申请号：PCT/CA1992000418
申请日：1992-09-25
申请人： DU PONT CANADA INC. , ZBORIL, Vaclav, George
发明人： DU PONT CANADA INC.
IPC分类号： C08F10/02
CPC分类号： C08F10/00 , C08F210/16 , C08F2/06 , C08F4/6555 , C08F4/642
摘要： A solution process for the preparation of high molecular weight polymers of alpha-olefins selected from the group consisting of homopolymers of ethylene and copolymers of ethylene and C3-C12 higher alpha-olefins is disclosed. The process comprises feeding monomer selected from the group consisting of ethylene and mixtures of ethylene and at least one C3-C12 higher alpha-olefin, a coordination catalyst and inert hydrocarbon solvent to a reactor, polymerizing said monomer at a temperature in the range of 105-320 DEG C and recovering the polymer so obtained. The coordination catalyst is formed from MgR 2 and A1R 3 in which each R and R are the same or different and are alkyl groups having 1-10 carbon atoms; a reactive chloride component; a titanium compound selected from titanium tetrachloride, titanium tetrabromide and a compound of the formula Ti(OR)x in which x = 0-4 and R is an alkyl group having 1-10 carbon atoms; and an alcohol.
摘要翻译：公开了一种用于制备选自乙烯均聚物和乙烯和C3-C12高级α-烯烃共聚物的α-烯烃的高分子量聚合物的溶液方法。该方法包括将选自乙烯和乙烯与至少一种C3-C12高级α-烯烃的混合物，配位催化剂和惰性烃溶剂的单体进料到反应器中，在105℃的温度下将所述单体聚合 -320℃，并回收得到的聚合物。配位催化剂由MgR 2和AlR 2 3形成，其中R 1和R 2各自相同或不同，为具有1-10个碳原子的烷基; 活性氯化物组分; 选自四氯化钛，四溴化钛和其中x = 0-4且R为具有1-10个碳原子的烷基的式Ti（OR）x的化合物的钛化合物; 和酒精。

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