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21. 发明公开

EP0326355A2 Process for the injection moulding of multi-layered articles 失效
标题翻译： Verfahren zum Spritzgiessen von mehrschichtigen Artikeln。
公开(公告)号：EP0326355A2
公开(公告)日：1989-08-02
申请号：EP89300702.1
申请日：1989-01-25
申请人： Du Pont Canada Inc.
发明人： King, David Campbell , Lillis, Rupert Martin , White, George
IPC分类号： B29C45/14
CPC分类号： B29C45/14778 , B29C45/1418 , B29C51/04 , B29C2045/14188 , B29C2045/14213 , Y10S264/50
摘要： An injection moulding process for the manufacture of multi-layered articles, especially articles having barrier properties, is disclosed. The process comprises clamping a thermoplastic film 14 over the cavity 4 of a mould 1 of an injection moulding process, the film 14 being capable of being stretched. The film 14 is then stretched within the mould 1 by inserrting the core 3 of the mould 1, preferably using a core 3 in which a central part 9 enters the mould 1 and partially stretches the film 14 prior to the remainder 5 of the core 3 entering the mould 1. The mould 1 is then closed, excess film 14 is trimmed off and polymer is injected into the mould cavity 17,18. The resultant article is a multi-layered injection moulded article which, depending on the characteristics of the film and injected polymer, may have barrier properties to oxygen, liquids or the like that are superior to articles moulded from only the polymer. The process is particularly useful in the moulding of containers having a depth:width ratio of at least 0.5.
摘要翻译：公开了一种用于制造多层制品的注射成型方法，特别是具有阻隔性能的制品。该方法包括将热塑性薄膜14夹在注射成型工艺的模具1的空腔4上，薄膜14能够被拉伸。然后通过插入模具1的芯3，优选地使用其中中心部分9进入模具1的芯3并且在芯3的剩余部分5之前部分地拉伸薄膜14，将薄膜14在模具1内拉伸进入模具1.然后关闭模具1，修剪掉多余的薄膜14，并将聚合物注入模腔17,18中。所得到的制品是多层注射成型制品，其取决于膜和注入的聚合物的特性，可以具有优于仅由聚合物模制的制品的氧气，液体等的阻隔性。该方法在具有至少0.5的深度：宽度比的容器的模制中是特别有用的。

22. 发明公开

EP0315409A2 Dual-ovenable container 失效
标题翻译： Im Heizofen verwendbareBehälter。
公开(公告)号：EP0315409A2
公开(公告)日：1989-05-10
申请号：EP88310263.4
申请日：1988-11-01
申请人： Du Pont Canada Inc.
发明人： Leboeuf, Christian
IPC分类号： B65D81/34 , C08L77/00 , C08K3/00
CPC分类号： C08K3/32 , Y10T428/1352 , C08L77/00
摘要： The present invention provides a container made from an aliphatic polyamide, said polyamide containing at least 0.2 wt.% of an additive selected from ortho-phophosphorous acid, hypophosphorous acid, alkali metal salts and alkaline earth metal salts thereof. The containers are particularly useful for packaging foods, e.g. frozen dinners. The additive in the container minimizes browning of the container from exposure to high temperatures experienced in conventional ovens.
摘要翻译：本发明提供一种由脂肪族聚酰胺制成的容器，所述聚酰胺含有至少0.2重量％的选自邻位次磷酸，次磷酸，碱金属盐和碱土金属盐的添加剂。这些容器特别适用于包装食品，例如冷冻晚餐。容器中的添加剂最小化容器暴露于常规烤箱中经历的高温下的褐变。

23. 发明公开

EP0315407A2 High temperature release sheet for printed circuit boards 失效
标题翻译： Hochtemperatur-Trennfoliefürgedruckte Schaltungsplatten。
公开(公告)号：EP0315407A2
公开(公告)日：1989-05-10
申请号：EP88310261.8
申请日：1988-11-01
申请人： Du Pont Canada Inc.
发明人： Sipos, Peter Andrew , Besso, Erica Marie-Jose
IPC分类号： B29C33/68 , H05K3/02 , B30B15/06
CPC分类号： C08J5/18 , B29C33/68 , B29C37/0075 , C08J2377/06 , C08K3/01 , H05K3/022 , H05K2203/068 , C08L77/06
摘要： A process and nylon release sheet for manufacturing printed circuit boards from epoxy prepregs is disclosed. In such process layers of the prepregs are separated from one another by a release sheet. The release sheet comprises an aliphatic or aromatic nylon or nylon copolymer which is a condensation product of a dicarboxylic acid and a diamine. The nylon film contains a heat stabilizer and an inorganic particulate antiblock additive, e.g. diatomaceous earth, glass beads, amorphous silica, talc, mica and molybdenum disulphide. The nylon may be toughened by the addition of a phosphorus-containing catalyst or an epoxide.
摘要翻译：公开了一种用于从环氧预浸料制造印刷电路板的工艺和尼龙剥离片。在这样的处理中，预浸料的层通过剥离片彼此分开。脱模片包含脂族或芳族尼龙或尼龙共聚物，其是二羧酸和二胺的缩合产物。尼龙膜含有热稳定剂和无机颗粒防粘剂添加剂，硅藻土，玻璃珠，无定形二氧化硅，滑石，云母和二硫化钼。尼龙可以通过加入含磷催化剂或环氧化物而增韧。

24. 发明公开

EP0220017A3 Polymer compositions with improved flow characteristics 失效
标题翻译：具有改进流动特性的聚合物组合物
公开(公告)号：EP0220017A3
公开(公告)日：1989-01-18
申请号：EP86307741.8
申请日：1986-10-07
申请人： Du Pont Canada Inc.
发明人： White, George
IPC分类号： C08K5/09 , C08L23/02 , C08L25/04 , C08L67/02 , C08L77/00
CPC分类号： C08K5/098
摘要： Polymer compositions of improved flow characteristics are disclosed. The compositions comprise an injection-mouldable polymer and 0.5 to 10% by weight of a sodium salt of at least one C 6 -C 16 aliphatic monocarboxylic acid. In preferred embodiments, the acid is a C 6 -C 10 acid. Examples of the polymers are polyolefins, polyamides, polyesters and polystyrene. In a preferred embodiment, the polymer is a homopolymer of ethylene or a copolymer of ethylene and at least one C 4 -C 10 higher alpha-olefin. The compositions may be used, in particular, in injection moulding processes, e.g. inthe manufacture of containers
摘要翻译：公开了改进的流动特性的聚合物组合物。组合物包含注射成型聚合物和0.5至10重量％的至少一种C 6 -C 16脂族单羧酸的钠盐。在优选的实施方案中，酸是C 6 -C 10酸。聚合物的实例是聚烯烃，聚酰胺，聚酯和聚苯乙烯。在优选的实施方案中，聚合物是乙烯均聚物或乙烯与至少一种C 4 -C 10较高级α-烯烃的共聚物。组合物可特别用于注射成型工艺，例如，在容器的制造中。

25. 发明授权

EP0103942B1 Pouches of ethylene-C6-C10 alpha-olefin copolymer film 有权
标题翻译：乙烯-C6-C10烯丙基共聚物薄膜
公开(公告)号：EP0103942B1
公开(公告)日：1988-09-28
申请号：EP83303136.2
申请日：1983-06-01
申请人： Du Pont Canada Inc.
发明人： Storms, William John
IPC分类号： C08L23/08 , B65D75/48
CPC分类号： C08J5/18 , C08J2323/08 , C08L23/06 , C08L23/0815 , C08L23/0853 , C08L2205/02 , C08L2205/03 , C08L2666/02 , C08L2666/06

26. 发明公开

EP0282277A2 Food tray with lid and method of production thereof 失效
标题翻译：盆状容器和盖子的食品和过程及其制备方法。
公开(公告)号：EP0282277A2
公开(公告)日：1988-09-14
申请号：EP88302037.2
申请日：1988-03-09
申请人： Du Pont Canada Inc.
发明人： Sahi, Ash Kumar
IPC分类号： B65D81/34
CPC分类号： B65D81/3453
摘要： The present invention provides a food package comprising a tray having a floor, walls attached thereto, said walls having a rim distal to the floor, said tray having food placed therein and an amorphous polyester, e.g. polyethylene terephthalate, a partially crystalline polyester, e.g. polyethylene terephthalate, or amorphous nylon film stretched across the rim and extending down the outer portion of the wall adjacent to the rim in a vacuum-induced thermally-set crimp. The polyester or nylon may optionally be blended with a compatibilized polyolefin.
The invention also provides a process for the production of a food package as herein described, which may be effected by conventional vacuum "skin-packaging" apparatus.
摘要翻译：本发明提供了一种食品包装件，包括具有底板的托盘，附接到其上的壁，所述具有边缘远离地板壁，所说的食品在其中并在无定形聚酯放置托盘，E.G. 聚对苯二甲酸乙酯，部分结晶聚酯，E.G. 聚对苯二甲酸乙酯，或无定形尼龙薄膜拉伸越过轮缘和向下延伸的壁的相邻于轮辋的外部部分的真空引起的热定形卷曲。聚酯或尼龙可任选地与一种相容的聚烯烃共混。因此本发明提供用于生产所述的食品包装中，其可通过常规的真空“皮肤包装”设备来实现的处理。

27. 发明公开

EP0266951A3 In-situ method for lining pipe with polymeric liner 有权
标题翻译：用于内衬管道与聚合物衬里的现场方法
公开(公告)号：EP0266951A3
公开(公告)日：1988-09-14
申请号：EP87309474
申请日：1987-10-27
申请人： DU PONT CANADA INC. , UNITED CORROSION CONSULTANTS LTD.
发明人： Whyman, Andrew David , Kneller, Dale Alfred
IPC分类号： B29C63/46 , B29C55/22
CPC分类号： B29C55/30 , B29C55/22 , B29C63/46
摘要： A method is disclosed for lining pipe section (1) with a rigid tubular liner (2,3) of synthetic polymer by pulling the liner (2,3) through diameter-reducing rollers (10,11) adjusted so that the resultant outside diameter of the liner (3) while under a diameter-reducing stress is sufficiently smaller than the inside diameter of the pipe section (1) that the liner may be readily drawn through the pipe section (1) under diameter-reducing stress, and releasing the stress on the liner (3), thus allowing the liner to expand into contact with the inside wall of the pipe section (1). The rollers (10,11) are driven at a rate sufficient to maintain the tensile stress on the pipe liner (3) below the tensile yield limit of the polymer.

28. 发明公开

EP0220711A3 Polyetherester elastomer composition 失效
标题翻译：聚乙烯弹性体组合物
公开(公告)号：EP0220711A3
公开(公告)日：1988-07-13
申请号：EP86114936
申请日：1986-10-28
申请人： E.I. DU PONT DE NEMOURS AND COMPANY , DU PONT CANADA INC.
发明人： Benim, Thomas Edward , Hamilton, Michael Andrew
IPC分类号： C08L67/02 , B29C47/00 , C08J05/18
CPC分类号： C08J5/18 , B29C47/0004 , B29C47/0019 , B29C47/0021 , B29C47/884 , B29C47/8845 , B29C47/8895 , B29K2021/00 , B29K2105/16 , B29L2031/4878 , C08G63/66 , C08J2367/02 , C08L67/025
摘要： A specific elastomeric composition is formed by melt blending two particular elastomers, each composed of hard and soft segments made from poly(tetramethylene ether) glycol, 1,4-butane diol and a phenylene dicarboxylic acid or a derivative thereof. The blend exhibits a melting endotherm that extends from no lower than 120°C to no higher than 215°C with a melting peak in the range of 150 to 175°C. Films made from the composition are particularly suited for use as elastic leg-strips in diapers.

29. 发明公开

EP0243083A1 Isopropanolamines as catalyst deactivators in solution process for polymerization of alpha-olefins 失效
标题翻译：异丙醇胺als Katalysatordeaktivierungsmittel在einem alpha-Olefin-Lösung聚合反应器。
公开(公告)号：EP0243083A1
公开(公告)日：1987-10-28
申请号：EP87303322.9
申请日：1987-04-15
申请人： Du Pont Canada Inc.
发明人： Zboril, Vaclav George , Mitchell, David John
IPC分类号： C08F6/02
CPC分类号： C08F6/02
摘要： A solution polymerization process for the preparation of high molecular weight polymers of alpha-olefins is disclosed. In the process, the coordination catalyst is deactivated using a solution of at least one trialkanolamine deactivating agent of the formula N(ROH)(RʹOH)₂ where R is isopropyl and Rʹ is alkyl of 2-4 carbon atoms, especially ethyl or isopropyl. The process is capable of producing polymers of improved colour.
摘要翻译：公开了一种用于制备α-烯烃高分子量聚合物的溶液聚合方法。在该方法中，使用至少一种式N（ROH）（R'OH）2的三烷醇胺钝化剂的溶液使配位催化剂失活，其中R是异丙基，R'是2-4个碳原子的烷基，特别是乙基或异丙基。该方法能够生产颜色改进的聚合物。

30. 发明授权

EP0087211B1 Machine direction orientation of nylon film 有权
标题翻译：尼龙薄膜机械方向定位
公开(公告)号：EP0087211B1
公开(公告)日：1987-08-05
申请号：EP83300258.7
申请日：1983-01-19
申请人： Du Pont Canada Inc.
发明人： Hetherington, Brian Lloyd , Gray, Peter Harrison , Mollison, Alistair, Norman
IPC分类号： C08J5/18 , B29C55/06 , C08G69/26 , C08G69/02
CPC分类号： B29C55/06 , B29C55/005 , B29K2077/00

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