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公开(公告)号：US5128196A
公开(公告)日：1992-07-07
申请号：US495279
申请日：1990-03-16
IPC分类号： B29C51/14 , B29C47/02 , B29C47/06 , B29L9/00 , B29L22/00 , B32B1/02 , B32B5/18 , B32B7/00 , B32B27/28 , B32B27/30 , B32B37/15 , C08J9/36
CPC分类号： C08J9/365 , B29C44/50 , B32B5/18 , B29K2105/26 , C08J2325/06 , Y10T428/1341 , Y10T428/1383 , Y10T428/2495 , Y10T428/249953 , Y10T428/249982 , Y10T428/249986 , Y10T428/249988 , Y10T428/249991 , Y10T428/249992
摘要： The invention comprises a multi-layer thermoplastic foam sheet comprising a thermoplastic foam layer adjacent to at least one multi-resin layer, preferably comprising a reclaim material mixture recycled from the sheet manufacturing process, and which comprises a thermoplastic barrier resin. In a preferred embodiment, the multi-layer sheet of the invention comprises a four major layer sheet comprising a barrier film layer which comprises a thermoplastic oxygen barrier resin; an inner mutli-resin reclaim layer comprising the oxygen barrier resin used in the barrier film layer; a foam core layer adjacent to the inner multi-resin reclaim layer; and an outer multi-resin reclaim layer, also comprising the oxygen barrier resin, as the other outer layer of the multi-layer sheet. In a more preferred embodiment, impact polystyrene is added to the reclaim layers and polystyrene is used in the foam core to produce multi-layer sheets having an impact-resisting outer layer and a lightweight inner foam core layer, respectively.
摘要翻译： 本发明包括多层热塑性泡沫板，其包括与至少一个多层树脂层相邻的热塑性泡沫层，优选地包括从片材制造工艺循环回收的回收材料混合物，并且其包含热塑性阻隔树脂。 在优选实施方案中，本发明的多层片材包括四层，其包含阻挡膜层，其包含热塑性氧阻隔树脂; 包含在阻挡膜层中使用的氧阻隔树脂的内部多树脂回收层; 邻近内部多树脂回收层的泡沫芯层; 以及还包含氧阻隔树脂的外部多树脂回收层作为多层片材的另一外层。 在更优选的实施方案中，将抗冲聚苯乙烯添加到回收层中，并且在泡沫芯中使用聚苯乙烯以分别制造具有耐冲击外层和轻质内泡沫芯层的多层片材。
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公开(公告)号：US5354402A
公开(公告)日：1994-10-11
申请号：US80555
申请日：1993-06-21
IPC分类号： B29C51/14 , B29C47/02 , B29C47/06 , B29L9/00 , B29L22/00 , B32B1/02 , B32B5/18 , B32B7/00 , B32B27/28 , B32B27/30 , B32B37/15 , C08J9/36
CPC分类号： C08J9/365 , B29C44/50 , B32B5/18 , B29K2105/26 , C08J2325/06 , Y10T428/1341 , Y10T428/1383 , Y10T428/2495 , Y10T428/249953 , Y10T428/249982 , Y10T428/249986 , Y10T428/249988 , Y10T428/249991 , Y10T428/249992
摘要： A method of producing a thermoplastic foam sheet comprising the step of (a) foaming, by extrusion, a mixture comprising polystyrene and a thermoplastic reclaim material obtained from a multi-layer sheet manufacturing process, wherein said thermoplastic reclaim material comprises polystyrene and a thermoplastic barrier resin selected from the group consisting of (i) copolymers of ethylene and vinyl alcohol, and (ii) polymers comprising a copolymer of acrylonitrile, to produce a foam sheet having an upper and lower surface.
摘要翻译： 一种制造热塑性泡沫塑料片的方法，包括以下步骤：（a）通过挤出将包含聚苯乙烯和由多层片材制造方法获得的热塑性回收材料的混合物发泡，其中所述热塑性回收材料包括聚苯乙烯和热塑性阻挡层 选自（i）乙烯和乙烯醇的共聚物的树脂，和（ii）包含丙烯腈共聚物的聚合物，以制备具有上表面和下表面的泡沫片材。
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公开(公告)号：US5221395A
公开(公告)日：1993-06-22
申请号：US892764
申请日：1992-06-03
CPC分类号： C08J9/365 , B29C44/50 , B32B5/18 , B29K2105/26 , C08J2325/06 , Y10T428/1341 , Y10T428/1383 , Y10T428/249953 , Y10T428/249986 , Y10T428/249992
摘要： The invention comprises a method for producing the multi-layer sheets of the invention comprising extrusion coating multi-resin layers onto each side of the foam core layer and then lamination of a barrier film layer onto one of the multi-resin layers.
摘要翻译： 本发明包括一种本发明的多层片材的制造方法，其特征在于，包括将多层树脂层挤压在泡沫芯层的各侧，然后在多层树脂层之一层叠阻挡膜层。
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4.发明授权Foamed core-reclaim multi layer sheet having improved resistance to barrier film delamination 失效具有提高的阻挡层分层耐性的发泡芯回收多层片
公开(公告)号：US5462794A
公开(公告)日：1995-10-31
申请号：US99911
申请日：1993-07-30
申请人： David C. Lindemann , Weilong L. Chiang , Melvin L. Luetkens, Jr. , Robert D. Pischke , John C. Schubert
发明人： David C. Lindemann , Weilong L. Chiang , Melvin L. Luetkens, Jr. , Robert D. Pischke , John C. Schubert
CPC分类号： C08J9/365 , B29C44/50 , B32B5/18 , B29K2105/26 , C08J2325/06 , Y10T428/249982 , Y10T428/249988 , Y10T428/249991 , Y10T428/249992
摘要： Disclosed is a multi-layer sheet in a which a foamed thermpolastic core layer is extrusion coated with a multi-resin reclaim-containing layer, and an EVOH or acrylonitrile barrier layer is laminated to the multi-resin layer. The multi-resin layer is formulated to contain at least about 5 weight percent, and preferably about 8 to about 16 weight percent, based on the weight of the layer, of an adhesive resin to reduce the tendency of the barrier layer to delaminate from the multi-resin layer over time. The preferred adhesive is EMA.
摘要翻译： 公开了一种多层片材，其中发泡热塑性芯层被多树脂回收层挤出涂覆，并且EVOH或丙烯腈阻挡层层压到多树脂层上。 将多层树脂配制成含有至少约5重量％，优选约8至约16重量％，基于该层的重量，粘合树脂，以减少阻挡层从 多层树脂层随着时间的推移。 优选的粘合剂是EMA。
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