公开(公告)号：US4396642A

公开(公告)日：1983-08-02

申请号：US324505

申请日：1981-11-24

Applicant: Lawrence Bolt ,  Michael Smith ,  Ali Tavasolian

Inventor： Lawrence Bolt ,  Michael Smith ,  Ali Tavasolian

IPC: B05D3/06 ,  G02B5/30

CPC classification number: C08J7/123 ,  G02B5/3033 ,  C08J2329/04

Abstract: A polarizer having increased hydrolytic stability is produced by impregnating a polyvinyl alcohol film with an iodine containing composition and then subjecting the substrate to both concentrated infrared and ultraviolet radiation treatments.

Abstract translation: 通过用含碘组合物浸渍聚乙烯醇膜，然后对基材进行浓缩红外和紫外线辐射处理来制备具有增加的水解稳定性的偏振片。

公开(公告)号：US4659112A

公开(公告)日：1987-04-21

申请号：US677427

申请日：1984-12-03

Applicant: Daniel T. Reiner ,  Lawrence Bolt ,  Philip W. Morlan, Jr. ,  Ali Tavasolian

Inventor： Daniel T. Reiner ,  Lawrence Bolt ,  Philip W. Morlan, Jr. ,  Ali Tavasolian

IPC: B42D15/10 ,  G06K19/14 ,  B42D15/00

CPC classification number: B42D25/22 ,  B42D25/00 ,  B42D25/373 ,  B42D25/425 ,  G06K19/14 ,  B42D2033/04 ,  B42D2033/10 ,  B42D2033/18 ,  B42D2033/20 ,  B42D2033/30 ,  B42D2033/32 ,  B42D2035/02 ,  B42D2035/06 ,  B42D2035/20 ,  B42D25/324 ,  B42D25/391 ,  B42D25/45 ,  B42D25/47 ,  Y10S283/904

Abstract: There is disclosed a tamper-free identification system, such as an ID card, comprising an information-bearing substrate made of a flexible but substantially rigid material, a partial light reflector superposed over said substrate which produces a substantially nondepolarizing light reflection, and a substantially transparent 90.degree. retarder superposed over said reflector. Said identification card can be manufactured at low cost using techniques known in the art, and with the aid of a simple and inexpensive analyzer such as a linear light polarizer, fraudulent alternations of the identification card can readily be detected.

Abstract translation: 公开了一种无窜改识别系统，例如ID卡，其包括由柔性但基本上刚性的材料制成的信息承载基底，叠加在所述基底上的部分光反射体，其产生基本上非偏振光的反射， 透明90度缓凝剂叠加在所述反射体上。 可以使用本领域已知的技术以低成本制造所述识别卡，并且借助于诸如线性光偏振器之类的简单廉价的分析仪，可以容易地检测到识别卡的欺诈性变化。

公开(公告)号：US4388375A

公开(公告)日：1983-06-14

申请号：US324507

申请日：1981-11-24

Applicant: Michael J. Hopper ,  Michael R. Martin ,  Lawrence Bolt ,  Michael Smith ,  Ali Tavasolian

Inventor： Michael J. Hopper ,  Michael R. Martin ,  Lawrence Bolt ,  Michael Smith ,  Ali Tavasolian

IPC: B32B27/08 ,  G02B5/30 ,  B32B27/40 ,  G02F1/13

CPC classification number: B32B27/08 ,  G02B5/3033 ,  Y10T428/31565 ,  Y10T428/31797 ,  Y10T428/31928 ,  Y10T428/31935

Abstract: A polarizer having increased hydrolytic stability is produced by impregnating a polyvinyl alcohol substrate with an iodine containing composition and then subjecting the substrate to both concentrated infrared and ultraviolet radiation treatments sufficient to substantially increase the hydrolytic stability of the thusly formed polarizer. The polyvinyl alcohol film had been laminated to a polyester support with a dispersed, aqueous composition of polyvinyl alcohol or polyurethane on its surface.

Abstract translation: 具有增加的水解稳定性的偏振片通过用含碘组合物浸渍聚乙烯醇基材，然后对基材进行浓缩红外和紫外线辐射处理，足以显着提高如此形成的偏振片的水解稳定性。 聚乙烯醇膜已经在其表面上层压到具有聚乙烯醇或聚氨酯的分散的水性组合物的聚酯载体上。