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81. 发明公开

EP0501689A2 Coupled spinning and dewatering process 失效
标题翻译： Kombiniertes Spinn- undEntwässerungsverfahren。
公开(公告)号：EP0501689A2
公开(公告)日：1992-09-02
申请号：EP92301447.6
申请日：1992-02-21
申请人： Du Pont Canada Inc. , E.I. DU PONT DE NEMOURS AND COMPANY
发明人： Samuels, Sam Louis , Zboril, Vaclav George
IPC分类号： D01D5/11 , D01F6/04 , G01N25/02
CPC分类号： D01F6/04 , D01D5/11
摘要： A continuous process for the manufacture of a fibrous material from a polyolefin. The process comprises feeding a solution of polyolefin dissolved in an organic solvent at elevated temperature and pressure to a spinneret (5). The exit of the spinneret is the inlet to an elongated vertical tube (12) and is located in an upper section of an elongated vertical vessel (1). The tube extends for a major portion of the length of the vessel. Solvent is removed from an upper section of the vessel and water is sprayed both down the tube (14) and into the vessel (13). The strands thus formed (20) are shredded in a self-cleaning self-feeding shredder (4) located at the bottom of the vessel. The shredded fibres and water are conveyed to a second vessel (2) having a baffle (16) located between the inlet (25) and outlet (24) thereof such that the shredded fibrous material passes from the inlet, over the baffle and to the outlet of the second vessel, the upper lip of the baffle being so that the level of water in the second vessel is in substantially the same horizontal plane as the shredder. An inert gas e.g. steam, is fed (23) to the second vessel to effect removal of volatile matter. The shredded fibres and liquid passing from the second vessel are fed to a dewatering device (3). The process may be used to manufacture fibrous polyolefin products e.g. in the form of a pulp. The preferred polyolefin is a high molecular weight homopolymer of ethylene or copolymer of ethylene and at least one C₄-C₁₀ hydrocarbon alpha-olefin.
摘要翻译：用于从聚烯烃制造纤维材料的连续方法。该方法包括在高温和高压下将溶解在有机溶剂中的聚烯烃溶液加入到喷丝头中。喷丝头的出口是细长垂直管的入口，并且位于细长垂直容器的上部。管延伸到容器长度的主要部分。将溶剂从容器的上部移除，并且水在管下方喷射到容器中。将如此形成的股线切割在位于容器底部的自清洁自给粉碎机中。切碎的纤维和水被输送到具有位于其入口和出口之间的挡板的第二容器，使得切碎的纤维材料从入口，挡板上方和第二容器的出口，挡板的上唇使得第二容器中的水的水平与切碎机处于大致相同的水平面。惰性气体，例如蒸汽进料到第二容器中以除去挥发性物质。从第二容器通过的切碎纤维和液体被送入脱水装置。该方法可用于制造纤维聚烯烃产品，例如以纸浆的形式。优选的聚烯烃是乙烯的高分子量均聚物或乙烯与至少一种C 4 -C 10烃α-烯烃的共聚物。

82. 发明公开

EP0461853A2 Residential furnaces, air-intake system therefor, and method of operating them 失效
标题翻译：烤箱，用于家庭取暖，进气系统为此，和方法，用于其操作。
公开(公告)号：EP0461853A2
公开(公告)日：1991-12-18
申请号：EP91305243.7
申请日：1991-06-11
申请人： Du Pont Canada Inc.
发明人： Nemser, Stuart Marshall
IPC分类号： B01D53/22 , B01D71/44 , F02M25/12 , F23L7/00
CPC分类号： B01D53/22 , B01D63/02 , B01D71/44 , F02M25/12 , F23L7/007 , Y02E20/344 , Y02T10/121
摘要： An air intake system for a residential combustion furnace is disclosed. The air intake system comprises a membrane formed from an amorphous polymer of perfluoro-2,2-dimethyl-1,3-dioxole, the membrane exhibiting an oxygen/nitrogen selectivity of at least 1.4:1. The permeate section of the membrane is adapted to be in fluid flow communication with a combustion zone of the residential combustion furnace. The membrane preferably has an oxygen flux in excess of 100 Barrers, especially in excess of 500 Barrers. The air intake system provides oxygen-enriched air for the furnace, to make the furnace more efficient.
摘要翻译：对于住宅燃烧炉的空气进气系统游离缺失盘。进气系统包括从上全氟-2,2-二甲基-1,3-二氧杂环戊烯的无定形聚合物形成的膜，所述膜在至少1.4的氧/氮选择性参展：第一在膜的渗透物部分是angepasst以与住宅燃烧炉的燃烧区流体流动连通。该膜优选具有在超过100个巴雷氧通量，爱尤其是在超过500个巴雷。进气系统提供富氧空气炉，使炉效率更高。

83. 发明公开

EP0416851A2 Moisture cross-linking of polymers 失效
标题翻译： Feuchtigkeitsvernetzung von Polymeren。
公开(公告)号：EP0416851A2
公开(公告)日：1991-03-13
申请号：EP90309627.9
申请日：1990-09-03
申请人： Du Pont Canada Inc.
发明人： Boocock, John Roger Brooke , Harbourne, David Alan
IPC分类号： C08J3/22 , C08J3/24
CPC分类号： C08J3/226 , C08J2423/00
摘要： A concentrate comprising a copolymer and 65 to 300%, by weight of the copolymer, of a vinyl silane is disclosed. The vinyl silane is vinyl trimethoxysilane and/or vinyl triethoxysilane. The copolymer is a copolymer of ethylene with at least one comonomer selected from the group consisting of carbon monoxide, vinyl acetate, alkyl acrylates and alkyl methacrylates, in which the alkyl groups have 1-4 carbon atoms. The copolymer is in a particulate form and has a heat of crystallization of less than 70 J/g, and if said copolymer is ethylene/vinyl acetate copolymer, then the copolymer has a vinyl acetate content of at least 18% by weight. The concentrate is maintained in a moisture-free environment and is in solid form. The concentrates are used in the moisture cross-linking of alpha-olefin polymers and offer versatility in processes for such cross-linking.
摘要翻译：公开了包含共聚物和65至300重量％的共聚物的乙烯基硅烷的浓缩物。乙烯基硅烷是乙烯基三甲氧基硅烷和/或乙烯基三乙氧基硅烷。共聚物是乙烯与至少一种选自一氧化碳，乙酸乙烯酯，丙烯酸烷基酯和甲基丙烯酸烷基酯的共聚单体的共聚物，其中烷基具有1-4个碳原子。共聚物为颗粒形式，结晶热小于70J / g，如果所述共聚物为乙烯/乙酸乙烯酯共聚物，则该共聚物的乙酸乙烯酯含量至少为18重量％。浓缩物保持在无水环境中，呈固体形式。浓缩物用于α-烯烃聚合物的水分交联，并且在这种交联的方法中提供多功能性。

84. 发明公开

EP0416850A2 Concentrates of modifying agents in polymers 失效
标题翻译： Polymeren的Konzentrate von Modifizierungsmitteln。
公开(公告)号：EP0416850A2
公开(公告)日：1991-03-13
申请号：EP90309626.1
申请日：1990-09-03
申请人： Du Pont Canada Inc.
发明人： Boocock, John Roger Brooke , Harbourne, David Alan
IPC分类号： C08J3/22 , C08J3/24
CPC分类号： C08J3/226 , C08J2423/00
摘要： A concentrate comprising a carrier polymer and at least 30%, by weight of the carrier polymer, of at least one modifying agent for a thermoplastic polymer is disclosed. The carrier polymer is a polymer of alpha-olefins having a heat of crystallization of less than 70 J/g and, if the copolymer is an ethylene/vinyl acetate copolymer, containing at least 18% by weight of vinyl acetate comonomer. The modifying agent is absorbed into the carrier polymer. In embodiments, the modifying agent is a polymerizable monomer. The concentrates provide a versatile method of addition of modifying agents into thermoplastic polymers.
摘要翻译：公开了一种包含载体聚合物和至少30重量％载体聚合物的至少一种热塑性聚合物改性剂的浓缩物。载体聚合物是具有小于70J / g的结晶热的α-烯烃的聚合物，如果该共聚物是含有至少18重量％乙酸乙烯酯共聚单体的乙烯/乙酸乙烯酯共聚物。改性剂被吸收到载体聚合物中。在实施方案中，改性剂是可聚合单体。浓缩物提供了将改性剂加入到热塑性聚合物中的通用方法。

85. 发明公开

EP0415702A2 Method of predicting yarn package size 失效
标题翻译： Verfahren zur Vorhersage derGrösseeiner Garnpackung。
公开(公告)号：EP0415702A2
公开(公告)日：1991-03-06
申请号：EP90309382.1
申请日：1990-08-28
申请人： Du Pont Canada Inc.
发明人： Turek, Douglas E. , Sibley, Mark A.
IPC分类号： G05D5/02 , B65H63/08
CPC分类号： B65H63/082 , B65H2701/31
摘要： A method of predicting final yarn package diameter (D) during winding of yarn onto the package. The yarn is to be wound onto the package for a known period of time (TD) to obtain the final yarn package diameter. The method comprises the steps of: measuring the time (TS) for the package to grow to a known diameter (DS); predicting yarn package size using the correlation:
D= square root [k1 + k2(TD/TS)]
wherein k1 and k2 are empirically determined constants.
摘要翻译：一种在将纱线卷绕到包装上时预测最终纱线包装直径（D）的方法。将纱线卷绕到包装上已知的时间段（TD）以获得最终的纱线包装直径。该方法包括以下步骤：测量包装生长至已知直径（DS）的时间（TS）; 使用相关性预测纱线包装尺寸：D =平方根[k1 + k2（TD / TS）]其中k1和k2是经验确定的常数。

86. 发明公开

EP0326355A3 Process for the injection moulding of multi-layered articles 失效
标题翻译：多层文章注射成型工艺
公开(公告)号：EP0326355A3
公开(公告)日：1991-02-27
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.

87. 发明授权

EP0210306B1 Blends of polyolefins with polymers containing reactive agents 失效
标题翻译：聚合物与含有反应性试剂的聚合物的混合物
公开(公告)号：EP0210306B1
公开(公告)日：1990-11-22
申请号：EP85305090.4
申请日：1985-07-17
申请人： Du Pont Canada Inc.
发明人： Boivin, Daniel Wilfred , Zelonka, Ronald Andrew
IPC分类号： C08L23/02 , C08K5/00 , C08J3/22
CPC分类号： C08J3/226 , C08J2323/02

88. 发明公开

EP0280455A3 Process for the injection moulding of articles having barrier properties 失效
标题翻译：具有障碍物特性的物品的注射成型工艺
公开(公告)号：EP0280455A3
公开(公告)日：1990-09-12
申请号：EP88301264.3
申请日：1988-02-16
申请人： Du Pont Canada Inc.
发明人： Breck, Alan Keith , St.-Cyr, Daniel
IPC分类号： C08L23/04 , C08L29/04 , C08L51/06 , C08L67/00 , C08L77/00
CPC分类号： C08L23/04 , B29C45/0001 , B29K2023/06 , B29K2023/083 , B29K2995/0065 , C08L2666/20 , C08L2666/24 , C08L2666/18 , C08L2666/04
摘要： A process for the manufacture, in an injection moulding process, of articles having barrier properties, is disclosed. The process comprises feeding an admixture of 20-87.5 percent of polyethylene and/or ethylene/vinyl acetate copolymer, 5-40 percent of at least one of polyamide, ethylene/vinyl alcohol copolymer, polyvinyl alcohol and polyester, and 7.5-40 percent of an alkylcarboxyl-substituted polyolefin to injection moulding apparatus, heating the admixture to a temperature above the melting point of all components of the admixture under conditions that minimize admixing of the admixture and then injecting the resultant heterogeneous molten mixture into a mould. The process may be used to manufacture articles e.g. containers, intended for use with foodstuffs and the like that have improved barrier properties with respect to a number of substances e.g. oxygen.
摘要翻译：公开了一种在注射成型工艺中制造具有阻隔性能的制品的方法。该方法包括将20-87.5％的聚乙烯和/或乙烯/乙酸乙烯酯共聚物，5-40％的聚酰胺，乙烯/乙烯醇共聚物，聚乙烯醇和聚酯中的至少一种和至少一种聚酰胺，聚乙烯醇和聚酯的混合物和7.5-40％将烷基羧基取代的聚烯烃注射到注射成型设备中，在混合混合物最小化的条件下将混合物加热至混合物所有组分的熔点以上的温度，然后将得到的非均相熔融混合物注入模具中。该方法可用于制造制品，例如，容器，用于与多种物质相比具有改善的阻隔性的食品等。氧。

89. 发明公开

EP0372886A2 Film laminate with easy TD tear 失效
标题翻译：横向zerreissbare Mehrschichtfolie。
公开(公告)号：EP0372886A2
公开(公告)日：1990-06-13
申请号：EP89312622.7
申请日：1989-12-04
申请人： Du Pont Canada Inc.
发明人： Lang, Theodore John , Bergevin, Kevin
IPC分类号： B32B27/32 , B65D75/62
CPC分类号： B32B27/32 , B32B27/08 , B32B2255/10 , B32B2255/205 , B32B2307/514 , B32B2307/582 , B32B2323/046 , B32B2439/00 , B65D75/44 , B65D75/58 , Y10T428/2495 , Y10T428/2817 , Y10T428/2826 , Y10T428/31692 , Y10T428/31913 , Y10T428/3192 , Y10T428/31928
摘要： A transversely tearable film and pouches made therefrom are disclosed. The transversely tearable laminate comprises a machine direction oriented linear low density polyethylene film adhesively laminated on at least one side to a sealant film, the sealant film having an Elmendorf tear strength in the machine direction of at least about 2 g/µm, and the selection of said oriented film and said sealant film being made on the basis that :
K.X > (1-Y),
wherein
K is an empirically determined factor which depends on the properties of the oriented film and the sealant film,
X is the thickness of all layers of sealant film in micrometres,
Y = (MD c )/(TD c )
MD c is the Elmendorf tear strength, in the machine direction, of the oriented film, measured in grams, and
TD c is the Elmendorf tear strength, in the transverse direction, of the oriented film, measured in grams.
摘要翻译：公开了一种横向可撕膜和由其制成的袋。横向可撕层压板包括在密封剂膜的至少一侧上粘合层压到机器方向取向的线性低密度聚乙烯膜，所述密封剂膜在机器方向上的埃尔曼多夫撕裂强度为至少约2g / m 2，所述取向膜和所述密封膜的选择基于：KX>（1-Y），其中K是取决于取向膜和密封剂膜的性质的经验确定因子，X是密封胶膜的所有层数微米，Y =（MDc）/（TDc）MDc是取向膜的机器方向的埃尔曼多夫撕裂强度，以克为单位，TDc是Elmendorf撕裂强度，定向胶片，以克计。

90. 发明公开

EP0372869A1 Nylon/grafted terpolymer release film for sheet moulding compound 失效
标题翻译：尼龙/ gepfropfte三元共聚物TrennfoliefürHarzmatten。
公开(公告)号：EP0372869A1
公开(公告)日：1990-06-13
申请号：EP89312587.2
申请日：1989-12-01
申请人： Du Pont Canada Inc.
发明人： Sipos, Peter Andrew
IPC分类号： C08L77/00
CPC分类号： C08L77/00 , C08L2666/04 , C08L2666/24
摘要： A release film for sheet moulding compound is disclosed. The film is made from a blend comprising comprising i) from 2 to 25 wt.% of a grafted terpolymer having two monomers selected from the group consisting of C₂ to C₂₀ alpha-olefins, ii) from 5 to 25 wt.% of a non-grafted terpolymer having two monomers selected from the group consisting of C₂ to C₂₀ alpha-olefins, iii) an aliphatic polyamide and iv) optionally an alpha-olefin polymer selected from the group consisting of homopolymers of ethylene, homopolymers of propylene, homopolymers of butene-1, copolymers of ethylene and a C₃ to C₁₀ alpha-olefin, copolymers of ethylene and acrylic acid, copolymers of ethylene and methacrylic acid, copolymers of ethylene and vinyl acetate, and ionomeric polymers derived from copolymers of ethylene and acrylic acid or methacrylic acid; said alpha-olefin monomers being present in the grafted terpolymer and the non-grafted terpolymer in amounts of up to 80 wt.% of the terpolymers; the total content of the alpha-olefin polymer, the grafted terpolymer and the non-grafted terpolymer being equal to or less than 30 wt.% of the blend, and the balance of the blend being an aliphatic polyamide, the melt viscosities of said polyamide, terpolymer and grafted terpolymer being selected such that the blend is homogeneous.
摘要翻译：公开了一种用于片状模塑料的剥离膜。该膜由共混物制成，包括i）2至25重量％的具有选自C2至C20α-烯烃的两种单体的接枝三元共聚物，ii）5至25重量％的非 - 接枝三元共聚物，其具有选自C2至C20α-烯烃的两种单体，iii）脂族聚酰胺和iv）任选的选自乙烯均聚物，丙烯均聚物，丁烯均聚物，丁烯均聚物的α-烯烃聚合物 -1，乙烯和C 3至C 10α-烯烃的共聚物，乙烯和丙烯酸的共聚物，乙烯和甲基丙烯酸的共聚物，乙烯和乙酸乙烯酯的共聚物，以及衍生自乙烯和丙烯酸或甲基丙烯酸的共聚物的离聚物聚合物 ; 所述α-烯烃单体以高达80重量％的三元共聚物的量存在于接枝三元共聚物和非接枝三元共聚物中; α-烯烃聚合物，接枝三元共聚物和非接枝三元共聚物的总含量等于或小于共混物的30重量％，其余共混物为脂族聚酰胺，所述聚酰胺的熔体粘度，三元共聚物和接枝三元共聚物的选择使得共混物是均匀的。

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