WO1993014422A1 - Revetement reflechissant photoluminescent - Google Patents

Revetement reflechissant photoluminescent Download PDF

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Publication number
WO1993014422A1
WO1993014422A1 PCT/US1993/000103 US9300103W WO9314422A1 WO 1993014422 A1 WO1993014422 A1 WO 1993014422A1 US 9300103 W US9300103 W US 9300103W WO 9314422 A1 WO9314422 A1 WO 9314422A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
adhesive
sheeting
film
retroreflective
Prior art date
Application number
PCT/US1993/000103
Other languages
English (en)
Inventor
Daniel E. Zampa
Alex A. Szopinski
Original Assignee
Stimsonite Corporation
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 Stimsonite Corporation filed Critical Stimsonite Corporation
Priority to PL93308637A priority Critical patent/PL171563B1/pl
Priority to EP93902978A priority patent/EP0631670A4/fr
Publication of WO1993014422A1 publication Critical patent/WO1993014422A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface
    • G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/16—Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
    • G09F2019/225—Fire evacuation route indicating means

Definitions

  • the invention relates generally to a photoluminescent retroreflective sheet material for use as a guide marker and which has particular utility in buildings when a power outage occurs.
  • the present invention relates to a photoluminescent retroreflective sheeting combining both photoluminescent and retroreflective properties in a single product to be used to form a marker system to help indicate exits, doorways, hazards, OSHA markings, pipe markings, high voltage areas, fire hoses and extinguishers and the like, when it is dark in the building, perhaps when caused by a power outage.
  • the term "building" as used throughout this application is intended to include any structure such as an aircraft, boat or other moveable and non-moveable conventional structures. It is well known that within buildings at night or especially when the power has been lost, it is difficult to find ones way along the necessary corridors to the building exits. Similarly, in some emergencies, the location of important fixtures such as fire alarms, extinguishers, shut-off valves and the like are difficult to find.
  • a photoluminescent material is utilized as a guide for such purposes. The luminous material is attached to doorways, hallways, and the like, so that in the event of a power outage, the photoluminescent material will glow in the dark and guide a person to an exit or along a prescribed path. Of course, it is only useful to those individuals in the building that have adjusted their eyes to the darkness. Further, the luminescence produced is significantly lost within the first 20 minutes of an "outage.” This makes it virtually useless to anyone entering the building after a short period of time.
  • the present invention overcomes the disadvantages of the prior art by providing a single sheeting material having both photoluminescent and retroreflective properties.
  • the sheeting should exhibit the same photoluminescent properties as the current product being used, and it has significant retroreflective properties.
  • a backcoating contains the phosphorescent pigment and is in contact with the retroreflective layer in areas of the pattern not covered by the hydrophobic silica.
  • a photoluminescent reflective sheet which has a transparent flexible film with retroreflective cube corners formed on the reverse surface thereof and a clear adhesive with phosphorescent pigment screen-printed in a pattern and cured on the cube corners.
  • retroreflector sheeting produced in a variety of ways but will be particularly useful with that retroreflective sheeting described and claimed in U.S. Patent No. 4,618,518, issued October 21, 1986, to Robert M. Pricone, et al. and assigned to applicants 1 assignee, the disclosure of which is incorporated by reference.
  • Others forms and methods of producing retroreflective sheeting include those of "casting" cube corner elements, such as disclosed in Rowland U.S. Patents 3,810,804, issued May 14, 1974; 3,684,348, issued August 15, 1972; and 3,689,346, issued September 15, 1972.
  • the present invention utilizes a phosphorescent pigmentation in conjunction with retroreflective sheet material in a manner which does not materially impede the retroreflective capability of the sign when illuminated either under normal lighting conditions, such as in a building and under hallway lighting lights, nor does it impede the "dark” or night light retroreflective capability when illuminated by a flashlight or other temporary light source.
  • the present invention relates to a photoluminescent retroreflective sheeting material, which, in one embodiment, comprises a first layer of transparent retroreflective film having a front face and a plurality of. cube corner retroreflective elements formed on at least a portion of the reverse or rear face to retroreflect light impinging upon the front face; a second layer of clear adhesive is screen-printed in a pattern and cured on the formed cube corner elements; a third layer of opaque film is adhered to the second layer to form air cells; an adhesive fourth layer is applied to the third layer for attaching the sheet material to a substrate surface; and a release liner is normally secured to the adhesive layer to prevent inadvertent contact of the adhesive layer with a surface.
  • a phosphorescent pigment is contained in at least one of the first, second, third or fourth layers to cause the sheet to glow in the dark.
  • the second layer is comprised of hydrophobic silica which eliminates the "air cell".
  • hydrophobic silica which eliminates the "air cell”.
  • FIG. 1 is a first embodiment that illustrates a cross sectional view of photoluminescent retroreflective sheeting of the present invention in which clear adhesive with a phosphorescent pigment is screen printed in a pattern on the retroreflective cube corners formed on the rear surface of a transparent film;
  • FIG. 2 is a cross-sectional view of a second embodiment of the present invention in which the retroreflective layer of film has the cube corners embossed on the rear surface thereof and a hydrophobic silica pattern is applied on the embossed surfaces; a backcoating with phosphorescent pigment is applied over the hydrophobic silica and is in contact with the otherwise exposed retroreflective cube corner elements;
  • FIG. 3 is a cross-sectional view of a third embodiment of the present invention in which the retroreflective layer has the cube corner reflectors on one side thereof and which layer also contains the phosphorescent pigment for enabling the sheet to be seen when not illuminated by an external source.
  • An adhesive layer is applied over the hydrophobic silica layer and exposed cuber corner elements, and a release liner is added to prevent accidental contact of the adhesive with a substrate surface;
  • FIG. 4 is a cross-sectional view of yet another embodiment of the present invention, in which the retroreflective layer contains the phosphorescent pigment; the hydrophobic silica is screened in a pattern over the embossed cube corner retroreflectors on the retroreflective layer; a white backcoating is applied to the silica layer and to the exposed cube corner elements, an adhesive layer is added and a release liner is applied to prevent the adhesive from accidentally touching a surface;
  • FIG. 5 is a flow diagram of a process for making one embodiment of the present invention
  • FIG. 6 is a flow chart illustrating the process for making the invention illustrated in FIG. 2 of the present invention
  • FIG. 7 is a flow chart illustrating the process for making the embodiment of FIG. 3 of the drawings
  • FIG. 8 is a schematic drawing of the flow chart for making the photoluminescent retroreflective sheeting of the FIG. 4 embodiment.
  • FIG. 9 is a cross-sectional view of another embodiment of the invention in which the phosphorescent pigment is utilized with "beaded sheeting" containing microspheres to provide retroreflectivity.
  • FIG. 1 A preferred embodiment of the present photoluminescent retroreflective sheeting is illustrated in cross-section in FIG. 1.
  • the sheet comprises a first layer of transparent retroreflective film 12 that is formed generally in accordance with the method and apparatus disclosed in the aforesaid Pricone U.S. patent No. 4,486,363.
  • the film 12 is approximately 0.006-0.008 inches thick and has a plurality of retroreflective corner cube elements 13 embossed on the rear side thereof.
  • It also has a layer of clear adhesive 14 containing a phosphorescent pigment screened in a preselected pattern over certain of the cube corner elements 13 so as to leave spaces or cells 22.
  • One such adhesive 14 may be that known as Flexcrill GP-2, sold by Air Products, Inc., and applied by screen printing. This is a water based acryclic.
  • the adhesive 14 contains a phosphorescent pigment which may be of a type known as P-1000, sold by Hanovia, a division of Conrad, Inc. of Newark, N.J. and which is commercially available. Other phosphorescent pigments may be used.
  • the pigment may be batch mixed with the adhesive so as to constitute about 30% by weight thereof.
  • the transparent retroreflective film 12 with the clear adhesive 14 and containing the phosphorescent pigment therein is then cured by heating or, if appropriate, and if UV curable, then curing can be accelerated.
  • an opaque layer of material 16 (such as polyester, PVC, or Mylar) is then applied over the transparent clear adhesive 14 with the phosphorescent pigment, to complete the "air" cells 22.
  • the air cells permit retroreflectivity to be achieved, as is known in the art.
  • this layer 16 will be of a white color to enhance the brightness of the phosphorescent effect, but other colors or metallized films may be used.
  • An adhesive fourth layer 18 then may be applied to the white layer 16, enabling the sheeting material to be attached to a surface.
  • a release liner 20 is applied to the adhesive layer 18 to prevent inadvertent contact of the adhesive with a surface until the user is ready to install the sheeting.
  • the retroreflective cells 22 allow the transparent film 12 to be retroreflective and reflect light impinging upon the front surface.
  • the clear adhesive 14 with the phosphorescent pigment allows the strip to glow in the dark so that it can be followed by an individual.
  • sheeting can be used to form guidance systems that mark exits, doorways, hazards and the like in the case of a power outage.
  • the retroreflective cube corner elements will retroreflect incident light, such as from a flashlight or the like carried by service individuals such as police, fire or utility department officials.
  • the sheeting 24 could be formed of a retroreflective layer of transparent flexible film 26 with cube corner retroreflective elements 27 formed on the reverse side thereof by embossing, to reflect incident light thereon.
  • a hydrophobic silica layer 28 is screen printed in a pattern over the cube corner retroreflective cells 27.
  • a clear water-based backcoating 30 is then placed over the hydrophobic silica 28.
  • the backcoating contains the phosphorescent pigment.
  • a white pigment adhesive 32 is laminated to the backcoating 30 for attaching the sheet to a surface. White pigment is used to enhance reflectivity as well as brightness of the phosphorescent material.
  • a release liner 34 is laminated to the adhesive to prevent the adhesive 32 from inadvertently contacting a surface until the user is ready.
  • the retroreflective layer 38 also includes the phosphorescent pigment therein.
  • the hydrophobic silica 42 is then screened on the cube corners 40 in a predetermined pattern and a white pigmented adhesive 44 is coated over the hydrophobic silica pattern.
  • a release liner 46 is laminated to the adhesive 44 to prevent the sheet from inadvertently sticking to a surface until the user is ready for it.
  • retroreflective sheeting material is disclosed and Martin U.S. Patent 4,801,193 may be provided with the phosphorescent pigmentation advantageously employed in the present invention.
  • the sheet 48 is again formed of a transparent flexible film 50 that has retroreflective cube corner elements 52 formed on the reverse side thereof and which contains the phosphorescent pigment described earlier.
  • a hydrophobic silica 54 is screened on the cube corners of the translucent reflective flexible film 50 in a predetermined pattern.
  • a white backcoating 56 as described earlier is coated over the hydrophobic silica 54.
  • An adhesive layer 58 is laminated to the white backcoating 56 and a release liner 60 is laminated to the adhesive 58 to prevent the adhesive from inadvertently contacting a surface before the user desires.
  • the method of application and composition of the hydrophobic silica, backcoating and adhesive as discussed herein may be as disclosed in the aforesaid Pricone et al. U.S. Patent No. 4,618,518.
  • a process for forming the photoluminescent retroreflective sheeting shown in FIG. 1 is illustrated in FIG. 5.
  • the transparent flexible film may be extruded and have retroreflective cube corner elements embossed or cast on the reverse side thereof at step 64.
  • a clear adhesive containing a phosphorescent pigment is screen printed in a predetermined pattern on the cube corner elements on the reverse or rear side of the flexible film.
  • the adhesive is cured and at step 72 an opaque film, preferably white, is adhered to the adhesive to form air cells.
  • an adhesive layer is added to the film and at step 76 a release layer is laminated to the adhesive layer to prevent the adhesive - from adhering to a surface prior to the time it is needed.
  • Fig. 6 illustrates the process steps for forming the invention of FIG. 2. Again, in step 1, the transparent flexible film is extruded. At step 80 retroreflective cube corners are formed on the reverse side by casting or embossing. At step 82, hydrophobic silica is screen printed in a pattern over the cube corner elements.
  • the silica is coated with a clear water-based backcoating containing the phosphorescent pigment.
  • a white (or other color) pigmented adhesive is applied to the silica coating at step 86 and a release layer is laminated to the pigmented adhesive at step 88 to prevent the adhesive from inadvertently sticking to a surface.
  • FIG. 7 is a flow chart of the process for forming the photoluminescent retroreflective sheeting illustrated in FIG. 3. As can be seen in FIG. 7, the flexible film is extruded and contains the phosphorescent pigment which glows in the dark. The retroreflective cube corner elements are then embossed on the reverse side of the extruded flexible film at step 92.
  • Hydrophobic silica is then screen printed on the cube corners in a predetermined pattern at step 94.
  • a water-based backcoating adhesive is applied to the hydrophobic silica at step 96.
  • a release liner is laminated to the adhesive at step 98 to prevent the product from sticking to a surface inadvertently.
  • the flow chart of FIG. 8 discloses the method of making the sheeting sample illustrated in FIG. 4.
  • the flexible film containing the phosphorescent pigment is extruded.
  • the reverse side of the sheet is embossed with the cube corner elements.
  • the hydrophobic silica is coated with a pigmented water-based backcoating, preferably white.
  • the layer of adhesive is applied to the backcoating and in step 110 a release liner is laminated to the adhesive. Again, such liner is used to prevent the adhesive from inadvertently sticking to a surface before it is intended to be used.
  • FIG. 9 discloses a sample microsphere beaded type sheet material 130 employing the present invention.
  • the beaded sheeting 130 may be of the type produced by 3M Corporation and sold under the trademark Scotchlite®. It is believed such material is made in accordance with various 3M patents such as Nos. 2,407,680 and 4,511,210.
  • the sheeting comprises a layer of monosphere beads 135 and a transparent layer of resin below which may be a specially reflecting surface 136.
  • the phosphorescent pigment 134 may be employed in an overlay over the beads, or in the binder layer 137 in which the beads are embedded. In the case of so-called high intensity beaded sheets, the phosphorescent pigment may be incorporated into the cell walls.
  • a layer of adhesive 138 and a release liner 139 also may be used. It will be appreciated from the foregoing that the present invention provides significant advantages for safety purposes in that dual functions can be obtained while utilizing sheeting having a high degree of retroreflectivity and photoluminescence while minimizing the amount of material required for each such purpose. While the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the particular form set forth, but, on the contrary, it is intended to cover such alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Road Signs Or Road Markings (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention se rapporte à un revêtement (10) réfléchissant photoluminescent utilisé dans des structures lorsque se produit une panne de secteur. Des systèmes de guidage sont conçus à partir de ce revêtement pour indiquer les sorties et les voies d'évacuation ainsi que les dangers éventuels et les dipositifs de sécurité. Le nouveau revêtement possède des propriétés photoluminescentes (14) qui luisent dans l'obscurité ainsi que des propriétés réfléchissantes (12) qui réfléchissent la lumière incidente sur le même revêtement de telle façon qu'un seul revêtement est utilisé plutôt que des revêtements individuels présentant des propriétés séparées.
PCT/US1993/000103 1992-01-16 1993-01-14 Revetement reflechissant photoluminescent WO1993014422A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL93308637A PL171563B1 (pl) 1992-01-16 1993-01-14 Odblaskowy material warstwowyi sposób wytwarzania odblaskowego materialu warstwowego PL
EP93902978A EP0631670A4 (fr) 1992-01-16 1993-01-14 Revetement reflechissant photoluminescent.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82120792A 1992-01-16 1992-01-16
US821,207 1992-01-16

Publications (1)

Publication Number Publication Date
WO1993014422A1 true WO1993014422A1 (fr) 1993-07-22

Family

ID=25232800

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/000103 WO1993014422A1 (fr) 1992-01-16 1993-01-14 Revetement reflechissant photoluminescent

Country Status (11)

Country Link
EP (1) EP0631670A4 (fr)
CN (1) CN1075374A (fr)
AU (1) AU3436393A (fr)
CA (1) CA2128113A1 (fr)
IL (1) IL104366A0 (fr)
MX (1) MX9300209A (fr)
NZ (1) NZ246793A (fr)
PL (1) PL171563B1 (fr)
TW (1) TW285650B (fr)
WO (1) WO1993014422A1 (fr)
ZA (1) ZA93314B (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609880A1 (fr) * 1993-02-05 1994-08-10 Minnesota Mining And Manufacturing Company Rétroréflecteur du type en sommet de cube avec des particules de pigment
WO1996033093A1 (fr) * 1995-04-20 1996-10-24 Saf-T-Glo Aerospace Limited Eclairage de secours
WO1996036891A1 (fr) * 1995-05-19 1996-11-21 Reflexite Corporation Rangees de prismes retroreflecteurs renfermant des spheres
WO1997025212A2 (fr) * 1996-01-08 1997-07-17 Siebdruck Bischoff Gmbh Procede pour la fabrication de plaques indicatrices, d'etiquettes adhesives, de marquages, etc., a luminescence persistante durablement
US5759671A (en) * 1994-12-16 1998-06-02 Nippon Carbide Kogyo Kabushiki Kaisha Ultraviolet luminescent retroreflective sheeting
EP0849082A2 (fr) * 1996-12-20 1998-06-24 Seiko Epson Corporation Actionneur électrostatique et son procédé de fabrication
US5961072A (en) * 1995-04-20 1999-10-05 Saf-T-Glo Limited Emergency lighting
US5988821A (en) * 1996-05-16 1999-11-23 Nippon Carbide Kogyo Kabushiki Kaisha Lens type functional retroreflective sheeting and method of producing same
DE19827400A1 (de) * 1998-06-19 1999-12-23 Alfred Linden Rückstrahler mit Nachleuchteffekt
WO2000019428A1 (fr) * 1998-09-25 2000-04-06 Iomega Corporation Marqueur de distinction d'eclairement latent avec couche reflechissante pour cartouches de stockage de donnees
WO2001079897A2 (fr) * 2000-04-13 2001-10-25 3M Innovative Properties Company Article retroreflechissant tetraedre-rectangle a pigmentation amelioree
GB2363754A (en) * 2000-04-11 2002-01-09 Moshe Klotz Laminated retroflective sheet and light-actuated triggering equipment comprising the same
WO2004088365A1 (fr) * 2003-04-02 2004-10-14 Erich Utsch Ag Plaque minéralogique de véhicule luminescente
DE102006007976A1 (de) * 2006-02-21 2007-08-30 Flooring Technologies Ltd. Verfahren zur Veredelung einer Bauplatte
GB2445561A (en) * 2007-01-11 2008-07-16 Philip Lancaster Marker for safety, decorative or lighting purposes
ES2315059A1 (es) * 2005-09-20 2009-03-16 Kedextin S.L. Sistema manuel de extincion de incendios con etiquetado foto luminiscente.
EP2046556A1 (fr) * 2006-07-28 2009-04-15 3M Innovative Properties Company Procédés permettant de modifier la forme d'une surface d'un article en polymère à mémoire de forme
EP2130975A1 (fr) * 2008-06-04 2009-12-09 Leif Levon Unité amplificatrice de lumière
EP2130974A1 (fr) * 2008-06-04 2009-12-09 Leif Levon Réflecteurs de sécurité polyvalents
CN101684640B (zh) * 2008-06-04 2012-10-31 利夫·莱沃 多功能安全反射镜装置
GB2580647A (en) * 2019-01-18 2020-07-29 Cobalt Aerospace Ltd A device for creating photoluminescent floor path marking elements
EP2280296B1 (fr) * 2005-01-10 2021-08-18 Avery Dennison Corporation Film rétroréfléchissant

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US5189553A (en) * 1992-06-08 1993-02-23 Minnesota Mining And Manufacturing Company Optimized construction of retroreflective articles for curved applications
CN101590709B (zh) * 2008-05-27 2012-12-26 鲁毅 实现反光膜凸起结构的封护复合技术的方法
JP2016529530A (ja) * 2013-04-25 2016-09-23 東友ファインケム株式会社Ｄｏｎｇｗｏｏ Ｆｉｎｅ−Ｃｈｅｍ Ｃｏ．， Ｌｔｄ． 光学積層体
CN109031489A (zh) * 2018-09-17 2018-12-18 合肥通路光学科技有限公司 夜光防水反光膜
CN111267282A (zh) * 2020-01-21 2020-06-12 徐州凹凸光电科技有限公司 一种柔性蓄光指示发光条的制备方法

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US3802944A (en) * 1972-04-17 1974-04-09 Minnesota Mining & Mfg Retroreflective sheeting
US3830682A (en) * 1972-11-06 1974-08-20 Rowland Dev Corp Retroreflecting signs and the like with novel day-night coloration
US4546042A (en) * 1983-10-04 1985-10-08 Multi-Tex Products Corp. Product having combined phosphorescent-reflective appearance and method
US4618518A (en) * 1984-08-10 1986-10-21 Amerace Corporation Retroreflective sheeting and methods for making same

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EP0609880A1 (fr) * 1993-02-05 1994-08-10 Minnesota Mining And Manufacturing Company Rétroréflecteur du type en sommet de cube avec des particules de pigment
US5759671A (en) * 1994-12-16 1998-06-02 Nippon Carbide Kogyo Kabushiki Kaisha Ultraviolet luminescent retroreflective sheeting
EP1278078A2 (fr) * 1994-12-16 2003-01-22 Nippon Carbide Kogyo Kabushiki Kaisha Feuille rétroréfléchissante luminescente lorsqu'elle est irradiée par des rayons ultraviolets
US6276634B1 (en) 1995-04-20 2001-08-21 Saf-T-Glo Limited Emergency lighting
GB2314536A (en) * 1995-04-20 1998-01-07 Saf T Glo Aerospace Limited Emergency lighting
WO1996033093A1 (fr) * 1995-04-20 1996-10-24 Saf-T-Glo Aerospace Limited Eclairage de secours
GB2314536B (en) * 1995-04-20 1998-12-16 Saf T Glo Aerospace Limited Emergency lighting
US5961072A (en) * 1995-04-20 1999-10-05 Saf-T-Glo Limited Emergency lighting
WO1996036891A1 (fr) * 1995-05-19 1996-11-21 Reflexite Corporation Rangees de prismes retroreflecteurs renfermant des spheres
WO1997025212A2 (fr) * 1996-01-08 1997-07-17 Siebdruck Bischoff Gmbh Procede pour la fabrication de plaques indicatrices, d'etiquettes adhesives, de marquages, etc., a luminescence persistante durablement
WO1997025212A3 (fr) * 1996-01-08 1997-09-04 Sibdruck Bischoff Gmbh Procede pour la fabrication de plaques indicatrices, d'etiquettes adhesives, de marquages, etc., a luminescence persistante durablement
US5988821A (en) * 1996-05-16 1999-11-23 Nippon Carbide Kogyo Kabushiki Kaisha Lens type functional retroreflective sheeting and method of producing same
US6190003B1 (en) 1996-12-20 2001-02-20 Seiko Epson Corporation Electrostatic actuator and manufacturing method therefor
US6410107B2 (en) 1996-12-20 2002-06-25 Seiko Epson Corporation Methods for manufacturing an electrostatic actuator
EP0849082A3 (fr) * 1996-12-20 1999-04-14 Seiko Epson Corporation Actionneur électrostatique et son procédé de fabrication
EP0849082A2 (fr) * 1996-12-20 1998-06-24 Seiko Epson Corporation Actionneur électrostatique et son procédé de fabrication
DE19827400A1 (de) * 1998-06-19 1999-12-23 Alfred Linden Rückstrahler mit Nachleuchteffekt
WO2000019428A1 (fr) * 1998-09-25 2000-04-06 Iomega Corporation Marqueur de distinction d'eclairement latent avec couche reflechissante pour cartouches de stockage de donnees
US6201662B1 (en) 1998-09-25 2001-03-13 Iomega Corporation Latent illuminance discrimination marker with reflective layer for data storage cartridges
GB2363754A (en) * 2000-04-11 2002-01-09 Moshe Klotz Laminated retroflective sheet and light-actuated triggering equipment comprising the same
WO2001079897A3 (fr) * 2000-04-13 2003-02-06 3M Innovative Properties Co Article retroreflechissant tetraedre-rectangle a pigmentation amelioree
WO2001079897A2 (fr) * 2000-04-13 2001-10-25 3M Innovative Properties Company Article retroreflechissant tetraedre-rectangle a pigmentation amelioree
WO2004088365A1 (fr) * 2003-04-02 2004-10-14 Erich Utsch Ag Plaque minéralogique de véhicule luminescente
EP2280296B1 (fr) * 2005-01-10 2021-08-18 Avery Dennison Corporation Film rétroréfléchissant
ES2315059A1 (es) * 2005-09-20 2009-03-16 Kedextin S.L. Sistema manuel de extincion de incendios con etiquetado foto luminiscente.
US9365028B2 (en) 2006-02-21 2016-06-14 Flooring Technologies Ltd. Method for finishing a building board and building board
DE102006007976B4 (de) * 2006-02-21 2007-11-08 Flooring Technologies Ltd. Verfahren zur Veredelung einer Bauplatte
DE102006007976A1 (de) * 2006-02-21 2007-08-30 Flooring Technologies Ltd. Verfahren zur Veredelung einer Bauplatte
EP2046556A1 (fr) * 2006-07-28 2009-04-15 3M Innovative Properties Company Procédés permettant de modifier la forme d'une surface d'un article en polymère à mémoire de forme
EP2046556A4 (fr) * 2006-07-28 2013-02-20 3M Innovative Properties Co Procédés permettant de modifier la forme d'une surface d'un article en polymère à mémoire de forme
GB2445561A (en) * 2007-01-11 2008-07-16 Philip Lancaster Marker for safety, decorative or lighting purposes
EP2130975A1 (fr) * 2008-06-04 2009-12-09 Leif Levon Unité amplificatrice de lumière
EP2130974A1 (fr) * 2008-06-04 2009-12-09 Leif Levon Réflecteurs de sécurité polyvalents
CN101684640B (zh) * 2008-06-04 2012-10-31 利夫·莱沃 多功能安全反射镜装置
GB2580647A (en) * 2019-01-18 2020-07-29 Cobalt Aerospace Ltd A device for creating photoluminescent floor path marking elements

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IL104366A0 (en) 1993-05-13
TW285650B (fr) 1996-09-11
PL171563B1 (pl) 1997-05-30
MX9300209A (es) 1993-07-01
EP0631670A4 (fr) 1995-08-23
EP0631670A1 (fr) 1995-01-04
ZA93314B (en) 1993-08-19
CN1075374A (zh) 1993-08-18
CA2128113A1 (fr) 1993-07-22
AU3436393A (en) 1993-08-03
NZ246793A (en) 1996-08-27

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