ES2075871T5 - DATA SUPPORT WITH A LIQUID GLASS SAFETY ELEMENT. - Google Patents

DATA SUPPORT WITH A LIQUID GLASS SAFETY ELEMENT.

Info

Publication number
ES2075871T5
ES2075871T5 ES90123341T ES90123341T ES2075871T5 ES 2075871 T5 ES2075871 T5 ES 2075871T5 ES 90123341 T ES90123341 T ES 90123341T ES 90123341 T ES90123341 T ES 90123341T ES 2075871 T5 ES2075871 T5 ES 2075871T5
Authority
ES
Spain
Prior art keywords
security
liquid crystal
safety element
data support
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES90123341T
Other languages
Spanish (es)
Other versions
ES2075871T3 (en
Inventor
Christoph Heckenkamp
Gerhard Schwenk
Jurgen Moll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAO Gesellschaft fuer Automation und Organisation mbH
Original Assignee
GAO Gesellschaft fuer Automation und Organisation mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6396250&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2075871(T5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GAO Gesellschaft fuer Automation und Organisation mbH filed Critical GAO Gesellschaft fuer Automation und Organisation mbH
Application granted granted Critical
Publication of ES2075871T3 publication Critical patent/ES2075871T3/en
Publication of ES2075871T5 publication Critical patent/ES2075871T5/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/364—Liquid crystals
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/086—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads
    • B42D2033/26—

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Credit Cards Or The Like (AREA)
  • Liquid Crystal (AREA)
  • Laminated Bodies (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

Data carriers protected against forgery attempts using colour copiers, such as an identity card or a security, which include an optically variable security element of a liquid crystal material. This security element, such as for example a security thread, has a layer similar to plastic of a liquid crystal polymer, which exhibits a pronounced iridescence at room temperature. The plastic-like properties of the liquid crystal polymers permit easy processing to form a semi-finished or finished product, so that very diverse types of security elements can be produced. <IMAGE>
ES90123341T 1989-12-22 1990-12-05 DATA SUPPORT WITH A LIQUID GLASS SAFETY ELEMENT. Expired - Lifetime ES2075871T5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3942663A DE3942663A1 (en) 1989-12-22 1989-12-22 DATA CARRIER WITH A LIQUID CRYSTAL SECURITY ELEMENT

Publications (2)

Publication Number Publication Date
ES2075871T3 ES2075871T3 (en) 1995-10-16
ES2075871T5 true ES2075871T5 (en) 2003-07-16

Family

ID=6396250

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90123341T Expired - Lifetime ES2075871T5 (en) 1989-12-22 1990-12-05 DATA SUPPORT WITH A LIQUID GLASS SAFETY ELEMENT.

Country Status (6)

Country Link
EP (1) EP0435029B2 (en)
JP (1) JP3244278B2 (en)
AT (1) ATE126135T1 (en)
CA (1) CA2032587C (en)
DE (2) DE3942663A1 (en)
ES (1) ES2075871T5 (en)

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GB2276883A (en) * 1993-04-05 1994-10-12 Central Research Lab Ltd Optical material containing a liquid crystal
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US5629055A (en) * 1994-02-14 1997-05-13 Pulp And Paper Research Institute Of Canada Solidified liquid crystals of cellulose with optically variable properties
DE4416191A1 (en) * 1994-05-06 1995-11-09 Consortium Elektrochem Ind Interference pigments from molecules fixed in a cholesteric arrangement and their use
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DE69737554D1 (en) 1996-08-05 2007-05-16 Matsushita Electric Ind Co Ltd DATA TRANSMITTER, RECEIVER, PROCESSOR, DEVICE AND SYSTEM FOR MANAGING EQUIPMENT, DATA ENTRY AND RECEIVING SYSTEM AND TRANSMISSION MEDIUM
DE19639229A1 (en) * 1996-09-24 1997-06-05 Wacker Chemie Gmbh Composition with matrix containing pigment with angle-dependent colour in different matrix
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DE19645084A1 (en) * 1996-11-01 1998-05-07 Austria Card Gmbh Identification card with additional security features and processes for their production
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DE69832574T2 (en) * 1997-07-29 2006-06-14 Nhk Spring Co Ltd Optical identification system with cholesteric liquid crystals
DE19735628C2 (en) * 1997-08-18 1999-10-14 Johannes Puff Procedure to prevent counterfeiting of a non-personal means of access authorization
DE19737612A1 (en) * 1997-08-28 1999-03-04 Consortium Elektrochem Ind Machine-detectable security marking, production of the security marking and security system that cannot be recognized by the eye and encompass this security marking
DE19737618A1 (en) * 1997-08-28 1999-03-04 Consortium Elektrochem Ind Machine-detectable security marking with increased protection against forgery, production of the security marking and security system comprising this security marking
DE19743722A1 (en) * 1997-10-02 1999-04-08 Wacker Chemie Gmbh Polysiloxanes with heterocyclic functions, their production and use
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Also Published As

Publication number Publication date
DE59009504D1 (en) 1995-09-14
CA2032587C (en) 1996-07-09
EP0435029B2 (en) 2003-01-02
JP3244278B2 (en) 2002-01-07
EP0435029B1 (en) 1995-08-09
CA2032587A1 (en) 1991-06-23
ES2075871T3 (en) 1995-10-16
JPH04144796A (en) 1992-05-19
EP0435029A3 (en) 1991-09-18
DE3942663A1 (en) 1991-06-27
EP0435029A2 (en) 1991-07-03
ATE126135T1 (en) 1995-08-15

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