DE69518911T2 - Erstarrte flüssigkristalle von zellulose mit variablen optischen eigenschaften - Google Patents

Erstarrte flüssigkristalle von zellulose mit variablen optischen eigenschaften

Info

Publication number
DE69518911T2
DE69518911T2 DE69518911T DE69518911T DE69518911T2 DE 69518911 T2 DE69518911 T2 DE 69518911T2 DE 69518911 T DE69518911 T DE 69518911T DE 69518911 T DE69518911 T DE 69518911T DE 69518911 T2 DE69518911 T2 DE 69518911T2
Authority
DE
Germany
Prior art keywords
optical properties
colloidal suspensions
cellulose
optical
produced
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
DE69518911T
Other languages
English (en)
Other versions
DE69518911D1 (de
Inventor
Jean-Francois Revol
Donat Godbout
Geoffrey Gray
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.)
FPInnovations
Original Assignee
Pulp and Paper Research Institute of Canada
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
Application filed by Pulp and Paper Research Institute of Canada filed Critical Pulp and Paper Research Institute of Canada
Publication of DE69518911D1 publication Critical patent/DE69518911D1/de
Application granted granted Critical
Publication of DE69518911T2 publication Critical patent/DE69518911T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/38—Polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
    • B44F1/14—Iridescent effects
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/38—Polymers
    • C09K19/3804—Polymers with mesogenic groups in the main chain
    • C09K19/3819—Polysaccharides or derivatives thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3008—Polarising elements comprising dielectric particles, e.g. birefringent crystals embedded in a matrix
    • 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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • 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
    • B42D25/378—Special inks
    • B42D25/391—Special inks absorbing or reflecting polarised light
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2219/00—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/03—Viewing layer characterised by chemical composition
    • C09K2323/031—Polarizer or dye
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249994—Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.]
    • Y10T428/249998—Indefinite plurality of similar impregnated thin sheets [e.g., "decorative laminate" type, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/253—Cellulosic [e.g., wood, paper, cork, rayon, etc.]
DE69518911T 1994-02-14 1995-02-09 Erstarrte flüssigkristalle von zellulose mit variablen optischen eigenschaften Expired - Lifetime DE69518911T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/201,450 US5629055A (en) 1994-02-14 1994-02-14 Solidified liquid crystals of cellulose with optically variable properties
PCT/CA1995/000067 WO1995021901A1 (en) 1994-02-14 1995-02-09 Solidified liquid crystals of cellulose with optically variable properties

Publications (2)

Publication Number Publication Date
DE69518911D1 DE69518911D1 (de) 2000-10-26
DE69518911T2 true DE69518911T2 (de) 2001-02-01

Family

ID=22745868

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69518911T Expired - Lifetime DE69518911T2 (de) 1994-02-14 1995-02-09 Erstarrte flüssigkristalle von zellulose mit variablen optischen eigenschaften

Country Status (17)

Country Link
US (1) US5629055A (de)
EP (1) EP0745112B1 (de)
JP (1) JP4083214B2 (de)
KR (1) KR100362083B1 (de)
CN (1) CN1151230C (de)
AT (1) ATE196495T1 (de)
AU (1) AU1573395A (de)
BR (1) BR9506777A (de)
CA (1) CA2182387C (de)
CZ (1) CZ239396A3 (de)
DE (1) DE69518911T2 (de)
DK (1) DK0745112T3 (de)
ES (1) ES2150552T3 (de)
FI (1) FI113663B (de)
HU (1) HU217775B (de)
PL (1) PL315896A1 (de)
WO (1) WO1995021901A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10331798A1 (de) * 2003-07-14 2005-02-10 Giesecke & Devrient Gmbh Sicherheitselement

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DE69518911D1 (de) 2000-10-26
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PL315896A1 (en) 1996-12-09
EP0745112B1 (de) 2000-09-20
HU9602192D0 (en) 1996-10-28
KR970701247A (ko) 1997-03-17
AU1573395A (en) 1995-08-29
CA2182387A1 (en) 1995-08-17
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ATE196495T1 (de) 2000-10-15
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CA2182387C (en) 2000-06-27
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ES2150552T3 (es) 2000-12-01
HUT74851A (en) 1997-02-28
US5629055A (en) 1997-05-13
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WO1995021901A1 (en) 1995-08-17
FI963165A (fi) 1996-08-13
HU217775B (hu) 2000-04-28
JP4083214B2 (ja) 2008-04-30
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CN1145631A (zh) 1997-03-19
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