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公开(公告)号：US5628950A
公开(公告)日：1997-05-13
申请号：US315374
申请日：1994-09-30
申请人： Walter J. Schrenk , Ranganath K. Shastri , Herbert C. Roehrs , Ralph E. Ayres , Mark A. Barger , Jeffrey N. Bremmer
发明人： Walter J. Schrenk , Ranganath K. Shastri , Herbert C. Roehrs , Ralph E. Ayres , Mark A. Barger , Jeffrey N. Bremmer
IPC分类号： B29C43/16 , B29C43/20 , B29C43/36 , B29C45/16 , B29C47/04 , B29C47/06 , B29C47/56 , B29C47/70 , B29C49/22 , B29C51/14 , B29C69/00 , B29C69/02 , B32B37/15
CPC分类号： B29C43/203 , B29C43/361 , B29C45/16 , B29C47/06 , B29C47/707 , B29C69/001 , B29C69/02 , B32B37/153 , B29C2043/3433 , B29C2043/3618 , B29C43/16 , B29C47/0019 , B29C47/0026 , B29C47/003 , B29C49/22 , B29C51/14 , B29K2105/26 , B29K2995/0067 , B29L2031/565
摘要： Methods and apparatus are provided for making multilayer plastic articles. Initially, two or more streams of diverse thermoplastic materials are provided. Layers are formed from these streams and are arranged in a layered first composite stream. The first composite stream may be directly formed into a desired configuration by a molding process or may be manipulated to form a second composite stream having an increased number of layers before being formed into the desired configuration. The resulting articles are comprised of a number of discrete and substantially continuous layers.
摘要翻译： 提供制造多层塑料制品的方法和装置。 最初，提供两种或多种不同热塑性材料的流。 层由这些流形成并排列成层状的第一复合流。 可以通过模制方法将第一复合流直接形成为期望的构造，或者可以在形成期望的构造之前，将其形成具有增加层数的第二复合流。 所得物品由多个离散且基本连续的层组成。
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公开(公告)号：US5540878A
公开(公告)日：1996-07-30
申请号：US313669
申请日：1994-09-27
IPC分类号： B29C43/16 , B29C43/20 , B29C43/36 , B29C45/16 , B29C47/04 , B29C47/06 , B29C47/56 , B29C47/70 , B29C49/22 , B29C51/14 , B29C69/00 , B29C69/02 , B32B37/15
CPC分类号： B32B37/153 , B29C43/203 , B29C43/361 , B29C45/16 , B29C47/0021 , B29C47/06 , B29C47/065 , B29C47/707 , B29C69/001 , B29C69/02 , B29B2911/14593 , B29C2043/3433 , B29C2043/3618 , B29C43/16 , B29C47/0019 , B29C47/0023 , B29C47/003 , B29C47/0054 , B29C47/067 , B29C47/26 , B29C49/22 , B29C51/14 , B29K2105/26 , B29K2995/0067 , B29L2031/565
摘要： A blow molded multilayer plastic article having a large number of layers is formed. First and second diverse thermoplastic streams are extruded into a coextrusion feedblock. In the feedblock the streams are divided into multiple streams and arranged into a first composite stream having a substantially uniform distribution of the layers. The first stream is fed into an interfacial surface generator in which the stream is manipulated to form a second composite stream having even more layers of substantially uniform thickness. This second stream is then formed into a preform such as by injection molding and this preform is blow molded. The second composite stream and preform are formed so that the layers of first and second materials lie generally parallel to a critical surface and possess substantial uniformity when blow molded.
摘要翻译： 形成具有大量层的吹塑多层塑料制品。 将第一和第二种不同的热塑性物流挤出成共挤出进料块。 在进料块中，流被分成多个流并且排列成具有基本均匀分布的层的第一复合流。 将第一流进料到界面表面发生器中，其中操作流以形成具有甚至更多层厚度基本均匀的第二复合流。 然后将该第二流体通过注塑成型为预制件，并将该预型件吹塑成型。 形成第二复合流和预制件，使得第一和第二材料的层大致平行于临界表面，并且当吹塑成型时具有显着的均匀性。
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公开(公告)号：US5217794A
公开(公告)日：1993-06-08
申请号：US643611
申请日：1991-01-22
申请人： Walter J. Schrenk
发明人： Walter J. Schrenk
IPC分类号： B32B3/18 , B29C47/00 , B29C47/04 , B29C47/06 , B29C70/58 , B29D11/00 , B32B20060101 , B32B3/22 , B32B7/02 , B32B27/00 , B32B27/08 , G02B5/28 , G02B5/30
CPC分类号： B32B3/22 , B29C47/0019 , B29C47/04 , B29C47/128 , B29C70/585 , B29D11/00 , G02B5/287 , G02B5/3008 , G02B5/305 , B29C47/00 , B29K2995/0031 , Y10S428/913
摘要： A lamellar polymeric body which may be reflective and which contains no metals and method of making it are provided. The body can be fabricated and/or post-formed into a variety of parts without alteration of its appearance. The body includes discontinuous layers of at least one polymeric material within a matrix of another polymeric material, which polymers differ in refractive index. The layers of the polymeric material may be either optically thick, optically thin, or optically very thin.
摘要翻译： 提供可以是反射性的并且不含金属的层状聚合物体及其制造方法。 身体可以被制造和/或后成型为各种部件而不改变其外观。 该主体包括在另一种聚合物材料的基体内的至少一种聚合材料的不连续层，该聚合物的折射率不同。 聚合物材料的层可以是光学厚的，光学上薄的或光学非常薄的。
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公开(公告)号：US4806289A
公开(公告)日：1989-02-21
申请号：US003777
申请日：1987-01-16
IPC分类号： G02B6/00 , B29C47/04 , B29C47/06 , B29C47/20 , B29C55/00 , B29D11/00 , B29L11/00 , B32B43/00 , G02B6/032 , G02B6/036 , G02B6/20
CPC分类号： G02B6/032 , B29C47/0023 , B29C47/065 , B29C47/20 , B29C47/263 , B29C47/56 , B29D11/00663 , B29C55/00 , B29K2995/005 , B29L2011/0075
摘要： A hollow light conductor with enhanced light-transmitting properties is formed by the coextrusion of polymeric materials. The hollow light conductor comprises a continuous annular core layer encased in inner and outer cladding layers.
摘要翻译： 通过聚合材料的共挤出形成具有增强的透光性的空心光导体。 中空的光导体包括包围在内包层和外包层中的连续环形芯层。
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公开(公告)号：US4094947A
公开(公告)日：1978-06-13
申请号：US720481
申请日：1976-09-03
CPC分类号： B29C47/065 , B29C47/145 , B29C47/70 , B29C47/0021
摘要： Multilayer film or sheet prepared by coextrusion is extruded wherein the thickness of the inner layers is varied by varying the flow of one component to the central portion of the sheet while diverting that portion to an external portion of the sheet or film.
摘要翻译： 通过共挤出制备的多层膜或片被挤出，其中内层的厚度通过改变一个部件到片材的中心部分的流动而改变，同时将该部分转移到片材或膜的外部。
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公开(公告)号：US4005967A
公开(公告)日：1977-02-01
申请号：US650833
申请日：1976-01-21
IPC分类号： B29C43/16 , B29C43/36 , B29C51/02 , B29C51/14 , B29C51/30 , B29C51/42 , B29C3/00 , B29C17/04
CPC分类号： B29C43/361 , B29C51/02 , B29C51/14 , B29C51/428 , B29B2911/14593 , B29B2911/14653 , B29C2049/028 , B29C2791/006 , B29C2791/007 , B29C2795/002 , B29C43/00 , B29C43/16 , B29C51/306 , B29L2031/716
摘要： Apparatus for rapidly making thermoplastic containers wherein the resultant containers can, if desired, be multilayered for vapor or gas barrier or other reasons, or be oriented for toughness and improved stress crack resistance. The apparatus takes a measured amount of thermoplastic material which is lubricated, heated and forged into a desired shape preform with a predetermined lip configuration. The center portion of each said preform is maintained at a forming temperature while the peripheral portion thereof is clamped and rapidly brought below the softening point of the plastic resin. The preform can then be immediately thermoformed into a container having a desired shape and size, and cooled. If desired, the preform can be forged, cooled and recovered for a subsequent thermoforming operation or can be a finished article itself.
摘要翻译： 用于快速制造热塑性容器的装置，其中如果需要，所得到的容器可以多层蒸发或气体阻隔或其它原因，或者为了韧性和改善的抗应力开裂性而定向。 该装置将测量量的热塑性材料以预定的唇形结构润滑，加热和锻造成所需的形状预制件。 每个所述预成型件的中心部分保持在成形温度，同时其周边部分被夹紧并迅速地降低到塑料树脂的软化点以下。 然后可以将预成型件立即热成型为具有所需形状和尺寸的容器并冷却。 如果需要，预成型件可以被锻造，冷却和回收以用于随后的热成型操作，或者可以是成品本身。
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公开(公告)号：US3977153A
公开(公告)日：1976-08-31
申请号：US484528
申请日：1974-07-01
申请人： Walter J. Schrenk
发明人： Walter J. Schrenk
CPC分类号： B65B3/027 , B29C51/14 , B32B27/08 , B32B2272/00 , Y10S264/918 , Y10T156/1052 , Y10T156/1059
摘要： A plastic container for food products and method of making the container, the body of the container thermoformed from a sheet comprising a plurality of layers which are held together in a contiguous structure without being securely bonded together, said layers of the container body functionally secured in place after filling by an interlocking closure. At least one layer provides structural rigidity and a good water vapor barrier and at least one other layer provides a barrier to the transmission of oxygen and a supplementary water vapor barrier. The container is capable of withstanding retort temperatures. Separation of the scrap sheet from which the container body is formed and recycle of separate layer scrap from the container body thermoforming process can be accomplished since the layers forming the container body are not securely bonded together.
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