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公开(公告)号：US5278694A
公开(公告)日：1994-01-11
申请号：US702652
申请日：1991-05-17
申请人： John A. Wheatley , Walter J. Schrenk , Stephen E. Bales , Mark A. Barger , Charles A. Langhoff , Ravi Ramanathan
发明人： John A. Wheatley , Walter J. Schrenk , Stephen E. Bales , Mark A. Barger , Charles A. Langhoff , Ravi Ramanathan
IPC分类号： B32B7/02 , B32B27/00 , B32B27/08 , B32B27/20 , B32B27/36 , B32B33/00 , C08L27/14 , C08L27/16 , C08L33/04 , C08L33/12 , G02B1/10 , G02B5/08 , G02B5/30 , F21V9/04 , G02B5/28
CPC分类号： G02B5/0841 , B32B27/08 , B32B33/00 , B32B7/02 , G02B5/0883 , G02B5/26 , G02B5/305
摘要： A multilayered reflective body which is thermoformable and capable of being fabricated into films, sheets and a variety of parts while maintaining a uniform reflective appearance is provided. The reflective polymeric body includes at least first and second diverse polymeric materials of a sufficient number of alternating layers of the first and second polymeric materials such that at least 30% of the light incident on the body is reflected. A substantial majority of the individual layers of the body have an optical thickness of not more than 0.09 micrometers or not less than 0.45 micrometers, and adjacent layers of the first and second polymeric materials differ from each other in refractive index by at least about 0.1. The reflective body may be fabricated into sheets, mirrors, noncorroding metallic appearing articles and parts, reflectors, reflective lenses, and the like.
摘要翻译： 提供了一种多层反射体，其可热成型并且能够制造成膜，片和各种部件，同时保持均匀的反射外观。 反射聚合物主体包括至少第一和第二种不同的聚合材料，其具有足够数量的第一和第二聚合物材料的交替层，使得入射到身体上的至少30％的光被反射。 主体的绝大多数各层具有不大于0.09微米或不小于0.45微米的光学厚度，并且第一和第二聚合物材料的相邻层在折射率上彼此不同至少约0.1。 反射体可以制成片，反射镜，非腐蚀金属物品和部件，反光镜，反射镜等。
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2.发明授权Thiodiphenol copolycarbonates and their use as components of multilayered polymeric reflective bodies 失效硫代二苯酚共聚碳酸酯及其作为多层聚合物反射体的组分的用途
公开(公告)号：US5532331A
公开(公告)日：1996-07-02
申请号：US351436
申请日：1994-12-14
CPC分类号： C08G64/081 , Y10T428/31507
摘要： This invention provides novel copolycarbonates that exhibit improvements in glass transition temperature, refractive index, and limiting oxygen index compared to prior art thiodiphenol/bisphenol A copolycarbonates. The copolycarbonates of this invention comprise the reaction products of 4,4'-thiodiphenol and compounds such as 9,9-bis (4-hydroxyphenyl) fluorene with phosgene. They are useful as components of multilayered polymeric reflective bodies.
摘要翻译： PCT No.PCT / US93 / 06074 Sec。 371日期1994年12月15日 102（e）1994年12月15日日期PCT提交1993年6月24日PCT公布。 出版物WO94 / 02533 日本1994年2月3日。本发明提供与现有技术的硫代二酚/双酚A共聚碳酸酯相比，显示玻璃化转变温度，折射率和极限氧指数的改进的新型共聚碳酸酯。 本发明的共聚碳酸酯包括4,4'-硫代二酚和诸如9,9-双（4-羟基苯基）芴和光气的化合物的反应产物。 它们可用作多层聚合物反射体的组分。
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3.发明授权Coextrusion of multilayer articles using protective boundary layers and apparatus therefor 失效使用保护性边界层的多层制品的共挤出及其设备
公开(公告)号：US5269995A
公开(公告)日：1993-12-14
申请号：US955788
申请日：1992-10-02
CPC分类号： B29C47/56 , B29C47/0021 , B29C47/065 , B29C47/145 , B29C47/707 , B29C47/0019 , B29C47/003 , B29L2007/002 , B29L2007/008 , B29L2009/00
摘要： A process and apparatus for the coextrusion of a multilayer polymeric body is provided which incorporates protective boundary layers into the body, protecting the layers from instability and breakup during layer formation and multiplication. The process includes the steps of providing at least first and second streams of heat plastified extrudable thermoplastic material which are combined to form a composite stream having the first substreams and second substreams interdigitated. A third stream of heat plastified thermoplastic material is supplied to the exterior surfaces of the composite stream to form protective boundary layers adjacent the walls of the coextrusion apparatus through which the heat plastified polymer streams pass. Layer instability and breakup are avoided using process conditions which would otherwise adversely affect the optical and/or mechanical properties of the articles which are formed.
摘要翻译： 提供了一种用于共挤出多层聚合物体的方法和装置，其将保护性边界层结合到体内，从而在层形成和增殖过程中保护层免于不稳定和破裂。 该方法包括提供至少第一和第二热量塑化可挤出热塑性材料流的步骤，其被组合以形成具有交叉指向的第一子流和第二子流的复合流。 将热塑性热塑性材料的第三流提供给复合材料流的外表面，以形成邻近共挤出设备的壁的保护边界层，热塑化聚合物流通过该壁。 使用过程条件来避免层不稳定性和破裂，否则会对形成的制品的光学和/或机械性能产生不利影响。
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公开(公告)号：US5612820A
公开(公告)日：1997-03-18
申请号：US452832
申请日：1995-05-30
IPC分类号： B32B7/02 , B32B27/00 , B32B27/08 , B32B33/00 , B44C5/08 , G02B1/04 , G02B1/08 , G02B1/10 , G02B5/08 , G02B5/20 , G02B5/30 , B29C47/06 , B29D11/00
CPC分类号： B32B7/02 , B32B27/08 , B32B33/00 , G02B1/04 , G02B1/08 , G02B5/0841 , G02B5/0883 , G02B5/26 , G02B5/305 , G02F2001/133545 , Y10S359/90
摘要： A birefringent interference polarizer which may be fabricated from readily available materials using established coextrusion techniques is provided. The polarizer has a level of light absorption near zero and can be fabricated to polarize and reflect light of specific wavelengths while transmitting light of other wavelengths. The polarizer includes multiple alternating oriented layers of at least first and second polymeric materials having respective nonzero stress optical coefficients which are sufficiently different to produce a refractive index mismatch between the first and second polymeric materials in a first plane which is different from the refractive index mismatch between the first and second polymeric materials in a second plane normal to the first plane. The refractive index mismatch in the first plane is preferably at least 0.03.
摘要翻译： 提供了可以使用建立的共挤出技术由容易获得的材料制造的双折射干涉偏振器。 偏振器的光吸收水平接近零，并且可以被制造为偏振和反射特定波长的光，同时透射其他波长的光。 偏振器包括至少第一和第二聚合物材料的多个交替取向层，其具有相应的非零应力光学系数，其非常不同，以在第一平面中产生不同于折射率不匹配的第一和第二聚合物材料之间的折射率失配 在与第一平面垂直的第二平面中的第一和第二聚合物材料之间。 第一平面中的折射率失配优选为0.03以上。
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公开(公告)号：US5122905A
公开(公告)日：1992-06-16
申请号：US463645
申请日：1990-01-11
IPC分类号： B32B7/02 , B32B27/00 , B32B27/08 , B32B33/00 , B44C5/08 , G02B1/04 , G02B1/08 , G02B1/10 , G02B5/08 , G02B5/20 , G02B5/30
CPC分类号： G02B5/0841 , B32B27/08 , B32B33/00 , B32B7/02 , G02B1/04 , G02B1/08 , G02B5/0883 , G02B5/26 , G02B5/305 , H01L31/056 , G02F2001/133545 , Y02E10/52 , Y10T428/2495
摘要： A multilayered reflective body which is thermoformable and capable of being fabricated into relatively thick parts while maintaining a uniform reflective appearance is provided. The reflective polymeric body includes at least first and second diverse polymeric materials of a sufficient number of alternating layers of the first and second polymeric materials such that at least 30% of the light incident on the body is reflected. A substantial majority of the individual layers of the body have an optical thickness of at least 0.45 micrometers, and adjacent layers of the first and second polymeric materials differ from each other in refractive index by at least about 0.03. The reflective body may be fabricated into sheets, mirrors, noncorroding metallic appearing articles and parts, reflectors, reflective lenses, and the like.
摘要翻译： 提供了一种多层反射体，其可热成型并且能够制造成相对较厚的部分，同时保持均匀的反射外观。 反射聚合物主体包括至少第一和第二种不同的聚合材料，其具有足够数量的第一和第二聚合物材料的交替层，使得入射到身体上的至少30％的光被反射。 主体的绝大多数单个层具有至少0.45微米的光学厚度，并且第一和第二聚合物材料的相邻层在折射率上彼此不同至少约0.03。 反射体可以制成片，反射镜，非腐蚀金属物品和部件，反光镜，反射镜等。
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公开(公告)号：US5486949A
公开(公告)日：1996-01-23
申请号：US618191
申请日：1990-11-26
IPC分类号： B32B7/02 , B32B27/00 , B32B27/08 , B32B33/00 , B44C5/08 , G02B1/04 , G02B1/08 , G02B1/10 , G02B5/08 , G02B5/20 , G02B5/30 , B29C47/06 , B29D11/00
CPC分类号： B32B7/02 , B32B27/08 , B32B33/00 , G02B1/04 , G02B1/08 , G02B5/0841 , G02B5/0883 , G02B5/26 , G02B5/305 , G02F2001/133545 , Y10S359/90
摘要： A birefringent interference polarizer which may be fabricated from readily available materials using established coextrusion techniques is provided. The polarizer has a level of light absorption near zero and can be fabricated to polarize and reflect light of specific wavelengths while transmitting light of other wavelengths. The polarizer includes multiple alternating oriented layers of at least first and second polymeric materials having respective nonzero stress optical coefficients which are sufficiently different to produce a refractive index mismatch between the first and second polymeric materials in a first plane which is different from the refractive index mismatch between the first and second polymeric materials in a second plane normal to the first plane. The refractive index mismatch in the first plane is preferably at least 0.03.
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7.发明授权Multilayer film for tamper indication by use of optical interference reflection 失效通过使用光学干涉反射的篡改指示的多层膜
公开(公告)号：US5149578A
公开(公告)日：1992-09-22
申请号：US814237
申请日：1991-12-23
CPC分类号： G02B5/287 , B32B7/02 , B65D55/026 , Y10S206/807 , Y10S428/913 , Y10S428/916 , Y10S428/918 , Y10T428/24273 , Y10T428/24479 , Y10T428/24942 , Y10T428/2495 , Y10T428/24967 , Y10T428/31551 , Y10T428/31786 , Y10T428/31909 , Y10T428/31913
摘要： A multilayer film including contiguous layers of two or more diverse thermoplastic materials of differing refractive indices whereby the film retains a permanent color change as evidence of tampering or an attempt at tampering when the yield point of at least one of the diverse materials has been at least equalled by the strain associated with such tampering or with such an attempt at tampering, and where before such yield point is at least equalled the wavelength of an unsuppressed reflectance of normally incident light is not within the visible spectrum while after such yielded point is at least equalled the reflectance is retained in the visible spectrum.
摘要翻译： 一种多层膜，其包含具有不同折射率的两种或更多种不同热塑性材料的连续层，由此当至少一种不同材料的屈服点至少为止时，该膜保持作为篡改的证据的持久颜色变化或篡改的尝试 相当于与这种篡改相关的应变或者这样的篡改尝试，并且在这样的屈服点至少相等之前，正常入射光的未被抑制的反射率的波长不在可见光谱内，而在这样的屈服点至少为 相等的反射率保留在可见光谱中。
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公开(公告)号：US5103337A
公开(公告)日：1992-04-07
申请号：US557262
申请日：1990-07-24
摘要： The present invention provides an optical interference film, made of multiple layers of polymers, which reflects wavelengths of light in the infrared region of the spectrum while being substantially transparent to wavelengths of light in the visible spectrum. The optical interference film includes multiple alternating layers of at least first, second, and third diverse, substantially transparent polymeric materials A, B, and C, with the layers being of an optical thickness of between about 0.09 and 0.45 micrometers. Each of the polymeric materials has a different index of refraction, n.sub.i, and the refractive index of the second polymeric material is intermediate the respective refractive indices of the first and third polymeric materials.
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9.发明授权Multilayer film indicator for determining the integrity or authenticity of an item and process for using same 失效用于确定物品的完整性或真实性的多层膜指示剂及其使用方法
公开(公告)号：US5095210A
公开(公告)日：1992-03-10
申请号：US506036
申请日：1990-04-06
摘要： A multilayer film indicator, mechanism and process for using the indicator for determining the integrity, authenticity, or conformance of an item to an original state, involving the measurement and comparison of the condition of the indicator to an identifiable original quality of the indicator. The identifiable original quality of the indicator is produced by the optical interactions of layers of diverse thermoplastic materials within a laminate of the indicator and is not readily visible to the naked eye.
摘要翻译： 一种多层膜指示器，用于使用指示器确定物品与原始状态的完整性，真实性或一致性的多层膜指示器，机构和方法，涉及将指示器的状况与指示器的可识别的原始质量进行测量和比较。 指示剂的可识别的原始质量由指示剂的层压体内的各种热塑性材料的层的光学相互作用产生，并且肉眼不容易看到。
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公开(公告)号：US4937134A
公开(公告)日：1990-06-26
申请号：US339267
申请日：1989-04-17
CPC分类号： G02B5/287 , B32B7/02 , Y10T428/24942 , Y10T428/2495 , Y10T428/24967 , Y10T428/31554 , Y10T428/31562 , Y10T428/31565 , Y10T428/31725 , Y10T428/31736 , Y10T428/31786
摘要： The present invention provides improved elastomeric interference films which are readily coextruded, have improved transparency, and have greater mismatches of refractive indices than those of the prior art. An improved elastomeric optical interference film comprising at least 100 alternating layers of at least first and second divergent substantially transparent elastomeric polymeric materials is provided. Adjacent layers of the first and second polymeric materials differ from each other in refractive index by at least about 0.05, and the thickness of the layers is from about 0.05 to about 0.5 micrometers. Stretching the films results in different wavelengths of light being reflected.
摘要翻译： 本发明提供了改进的弹性体干涉膜，其易于共挤出，具有改善的透明度，并且具有比现有技术更高的折射率失配。 提供了一种改进的弹性体光学干涉膜，其包括至少100个交替层的至少第一和第二发散的基本上透明的弹性体聚合材料。 第一和第二聚合物材料的相邻层在折射率上彼此不同至少约0.05，并且层的厚度为约0.05至约0.5微米。 拉伸薄膜会导致不同波长的光被反射。
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