EP0385746A1 - Allwettertaugliche Strassenmarkierungsmaterialbahn mit hoher Sichtbarkeit - Google Patents

Allwettertaugliche Strassenmarkierungsmaterialbahn mit hoher Sichtbarkeit Download PDF

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Publication number
EP0385746A1
EP0385746A1 EP90302123A EP90302123A EP0385746A1 EP 0385746 A1 EP0385746 A1 EP 0385746A1 EP 90302123 A EP90302123 A EP 90302123A EP 90302123 A EP90302123 A EP 90302123A EP 0385746 A1 EP0385746 A1 EP 0385746A1
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EP
European Patent Office
Prior art keywords
glass microspheres
layer
brightness
pavement marking
sheet
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.)
Granted
Application number
EP90302123A
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English (en)
French (fr)
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EP0385746B1 (de
Inventor
Sadao Kobayashi
Kouichi Ijichi
Yuji Ishihara
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.)
Seibu Polymer Kasei KK
Original Assignee
Atom Chemical Paint Co Ltd
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Publication date
Application filed by Atom Chemical Paint Co Ltd filed Critical Atom Chemical Paint Co Ltd
Priority to AT90302123T priority Critical patent/ATE82785T1/de
Publication of EP0385746A1 publication Critical patent/EP0385746A1/de
Application granted granted Critical
Publication of EP0385746B1 publication Critical patent/EP0385746B1/de
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Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/506—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
    • E01F9/512—Preformed road surface markings, e.g. of sheet material; Methods of applying preformed markings

Definitions

  • This invention relates to a pavement marking sheet material and, more particularly, to an all-weather type pavement marking sheet material having a high brightness in reflection against light incident at a large angle of incidence and even during night when it is raining.
  • Pavement marking sheet materials having a light reflex-reflecting function which are used for pavement marking purposes such as providing marking lines and road marks on the roads.
  • Pavement marking sheet material which are presently used for pavement marking purposes all have glass microspheres as reflex-reflecting element dispersed on the surface thereof or mixed in the material for affording visibility during night.
  • These pavement marking sheet materials have the common disadvantage that, when the surface of the marking material is covered with a film of water when it is raining, upper hemisphere portions of the glass microspheres exposed in air above the surface of the marking material and performing a light reflecting function are mostly submerged in the film of water with a result that the light reflecting function is impaired and visibility during night when it is raining becomes extremely poor.
  • 211403/1987 discloses forming, at intervals in the longitudinal direction of the base sheet or continuously in the longitudinal direction of the base sheet in a part of the base sheet as viewed in the transverse direction of the base sheet, of an area in which glass microspheres having refractive index of 2.0 - 2.4 which relatively do not lose the light reflecting function during night when it is raining are embedded in the base sheet.
  • an object of the invention to provide an all-weather type pavement marking sheet material having a sufficient brightness in reflection against light which is incident at an incident angle of degrees or over at which a pavement marking sheet material is usually used and also having a high brightness in reflection during night when it is raining.
  • the high-brightness all-weather type pavement marking sheet material according to the invention is characterized in that it comprises a reflex-reflecting sheet which comprises a layer of glass microspheres of a relatively large diameter which are at least partially exposed in air and bonded to one another by a transparent resin, a layer of glass microshperes of a relatively small diameter which are buried and fixed in a transparent resin layer behind the glass microspheres of a large diameter with an interval between the glass microspheres of a large diameter and the glass microspheres of a small diameter, and a reflecting layer consisting of a metallized film or the like material provided behind the glass microspheres of a small diameter, and a base sheet made of rubber or synthetic resin bonded to the lower surface of the reflex-­reflecting sheet.
  • a reflex-reflecting sheet which comprises a layer of glass microspheres of a relatively large diameter which are at least partially exposed in air and bonded to one another by a transparent resin, a layer of glass microshperes of a relatively
  • light incident at a large angle of incidence of 60 degrees or over is incident upon the glass microspheres of a relatively small diameter in the reflex-reflecting sheet through the glass microspheres of a relatively large diameter and the transparent resin, is reflected by the reflecting layer and is reflex-reflected passing through the glass microspheres of a relatively small diameter, the transparent resin and the glass microspheres of a relatively large diameter.
  • a sufficiently high reflex-­reflecting characteristic can be obtained at an angle of incidence of 60 degrees or over.
  • the brightness in reflection is not substantially reduced but is rather increased compared with a dry state (i.e., a state corresponding to night when it is fine) even when the exposed portions of the glass microspheres of a relatively large diameter are covered with a film of water.
  • the amount of light received by the glass microspheres is large even if the angle of incidence is large so that a relatively large amount of light reaches the reflecting layer provided at a lower layer.
  • the base sheet made of unvulcanized rubber for example, is provided behind the reflex-reflecting sheet, shock applied on the glass microspheres provided on the surface by a passing vehicle is mitigated and the likelihood of coming off of these glass microspheres is reduced.
  • resin 3 of a reflex-­reflecting sheet 1 is required to have transparency and have a sufficient strength to hold glass microspheres 4 of a relatively large diameter. Further, since the pavement marking sheet material is used on the road, the resin 3 must be selected taking account of resistances to wear, staining and color change. As resins satisfying these requirements, acrylic polymers, aliphatic urethanes and cross-linked polyester are preferably used. Thermoplastic resins such as vinyl polymers and cellulose acetate butylate may also be used.
  • the diameter of the glass microspheres 4 is less than 0.25 mm, the brightness in reflection is insufficient for achieving the object of the invention. It is therefore necessary to select glass microspheres of a dimater within the range of 0.25 mm - 2 mm as the glass microspheres 4. Glass microspheres of a diameter of 0.25 mm - 0.5 mm are found particulary preferable.
  • glass microspheres As the glass microspheres 4, glass microspheres of a refractlve index within a range of 1.75 - 2.2 are preferable. If the refractive index is less than 1.75, a sufficient brightness in reflection cannot be attained whereas if the refractive index exceeds 2.2, it is difficult to manufacture such glass microspheres so that the cost of manufacture becomes extremely high.
  • the glass microspheres 4 of a relatively large diameter are dispersed substantially uniformly over the resin so that they will cover about 30 - 60%. of the entire furface area of the reflex-reflecting sheet 1 and the glass microspheres 4 form a layer.
  • glass microspheres 5 of a relatively small diameter are buried and fixed in a transparent resin layer behind the glass microspheres 4 of a relatively large diameter with an interval between the glass microspheres 4 and the glass microspheres 5 form a layer.
  • a transparent resin layer behind the glass microspheres 5 of a relatively small diameter is provided in the rear portion of a transparent resin layer behind the glass microspheres 5 of a relatively small diameter.
  • a reflecting layer 8 consisting of a metallized film or the like material.
  • glass microspheres 5 of a relatively small diameter glass microspheres of a diameter within a range of 53 ⁇ m - 63 ⁇ m and a refractive index within a range of 2.0 - 2.2 are preferable.
  • the reflecting layer 8 can be formed by forming a metallized film such as an aluminum film by a known method such as a vacuum deposition in the rear portion of a focus adjusting resin layer 7 provided behind the glass microspheres 5 and performing a function of adjusting the position of the reflecting layer 8 so that it coincides with the focus of the glass microspheres 5.
  • the lower layer portion a comprises a glass microsphere holding resin layer 6 holding the glass microspheres 5, a focus adjusting resin layer 7 adjusting the thickness of the film of resin in accordance with the focus of the glass microspheres 5 and a reflecting layer 8 made of a metallized film or the like material and having curved surfaces concentric with the glass microspheres 5.
  • the lower layer portion a may comprise further a surface resin layer 9 for reinforcing the glass microsphere holding resin layer 6.
  • Reference numeral 10 denotes an adhesive layer made of acrylic resin or the like adhesive material.
  • the glass microspheres 5 are embedded in about 20% - 30% of their diameter In the glass microsphere holding resin layer 6. In case the surface resin layer 9 is provided, thickness of about 10 ⁇ m - 30 ⁇ m is sufficient as the thickness of this layer 9.
  • the upper layer portion b comprises a transparent resin layer 3 formed on the lower layer portion a by suitable means such as coating and this transparent resin layer 3 holds the glass microspheres 4 of a relatviely large diameter.
  • this transparent resin layer 3 for fixing the glass microspheres 4 a minimum thickness of 20 ⁇ m will be sufficient. In view of the necessity for holding the glass microspheres 4 on the roads, however, a thickness of at least 70 ⁇ m will be necessary.
  • the film thickness of the resin layer 3 has correlation with the diameter of the glass microspheres 4 and a preferable film thickness is half or less of the diameter of the glass microspheres 4.
  • the film thickness of the resin layer 3 therefore can be within a range of 20 ⁇ m - 100 ⁇ m and preferably 70 ⁇ m - 100 ⁇ m. If the film thickness is less than 20 ⁇ m, the strength of the resin layer 3 for holding the glass microspheres 4 is insufficient whereas if the film thickness exceeds 100 ⁇ m, the brightness in reflection is reduced.
  • the method for manufacturing the reflex-reflecting sheet 1 is of course not limited to the above described one but the reflex-reflecting sheet 1 may be manufactured by other method such as making it in sequence from the side of the glass microspheres 4 of a relatively large diameter.
  • a base sheet 2 bonded at the back of the reflex-­reflecting sheet 1 requires to be made of a material having excellent conformability to the irregular pavement surface and durability to various mechanical forces.
  • the base sheet 2 therefore comprises, as its main ingredient, unvulcanized synthetic rubber such, for example, as acrylonitrile-butadiene rubber (NBR), isobutylene-isoprene rubber (IIR), chloroprene rubber (CR), chloro-sulphonyl-polyethylene, a urethane rubber or a synthetic resin such, for example, as polyvinyl chloride.
  • the base sheet 2 may comprise, if necessary, additives including a filler such as calcium carbonate powder and a pigment for providing color to the base sheet. The mixture of these ingredients is formed into a sheet with a thickness of 5 mm or less by passing it through pressure rolls or by other convenient methods.
  • a release paper 12 is normally attached to the lower surface of the adhesive of the adhesive layer 11 but it may be omitted depending upon the type of the adhesive employed in the adhesive layer 11.
  • the unvulcanized synthetic rubber or synthetic resin which is an ingredient of the base sheet 2 is added with desired amount of the filler, pigment and other materials if required.
  • the mixture is blended and is formed into a sheet of a thickness of 5 mm or less through heated pressure rolls and then is wound into a roll. If necessary, the roll of the base sheet is unwound and an adhesive coated on a release paper in a thickness of 50 ⁇ m or more is superposed on the lower surface of the base sheet and then the base sheet is wound again.
  • the base sheet 2 may be composed of two layers, i.e., a base layer made of the above described ingredients and a thin colored layer provided on the base layer.
  • the thickness of the base layer preferably is about 1.0 mm - 1.6 mm and the thickness of the colored layer on the base layer preferably is about 20 - 25 ⁇ m.
  • the thickness of the thin colored layer on the base layer is required to have the same features as those of the base layer described above, to be adhered integrally to the base layer and to be colored in a desired color for the pavement marking purpose so that the same material as, or a material which is different but has the same properties as, the unvulcanized synthetic rubber used for the base layer added with a suitable coloring agent is preferably employed.
  • the base layer which has once been wound into a roll is unwound and the colored layer is formed thereon by coating a liquidized material prepared by dissolving an unvulcanized synthetic rubber material in a solvent and adding a coloring agent affording a desired color there to on the upper surface of the base layer by an amount sufficient for giving a desired thickness to the coated film after drying.
  • the base sheet 2 may be a double layer structure composed of an upper layer of a relatively hard material having excellent durability to various mechanical forces and a lower layer of a relatively soft material having an excellent conformability to an irregurlar pavement surface. If the lower layer is made of a material having JIS K6301 hardness of 30° - 75° and restoration rate of 50% or less, the base sheet 2 has an excellent conformabillty to the pavement surface and is hardly separated once it has been adhered to the pavement surface.
  • the above described hardness and restoration rate can be obtained by, for example, adding a relatively large amount of plastic material in the ingredients of the lower layer.
  • the amount of addition of such plastic material required in the ingredients of the lower layer is 2 parts by weight or more.
  • Suitable plastic materials for this purpose include elastomer, plasticizers (D.O.P. chlorinated paraffin, epoxi etc.) and liquid rubber.
  • the two layers comprise, as their main ingredients, unvulcanized synthetic rubber such, for example, as acrylonitrile-butadiene rubber (NBR), isobutylene-isoprene rubber (IIR) and chloroprene rubber (CR) or a synthetic resin such, for example, as chloro­sulphonyl-polyethylene, chlorinated polyethylene and polyvinyl chloride or other material known in the field of the pavement marking sheet material.
  • the two layers may comprise, if necessary, additives including a filler such as calcium carbonate powder and a pigment for providing color to these layers.
  • the mixture of these ingredients is formed into a sheet with a thickness of 2 mm or less by passing it through pressure rolls or by other conventional methods.
  • the adhesive layer can be formed by coating adhesive on a release paper in a desired thickness and superposing it on the lower surface of the lower layer.
  • the unvulcanized synthetic rubber or synthetic resin which is an ingredient of the upper layer and the lower layer is added with desired amounts of the filler, pigment and other materials if required.
  • a desired amount of plastic materials is further added to the material for forming the lower layer.
  • the respective mixtures are blended and are formed into sheets of a thickness of 2 mm or less through heated pressure rolls and the sheets constitute the upper layer and the lower layer. If necessary, an adhesive coated on a release paper in a thickness of 50 ⁇ m or more is superposed on the lower surface of the lower layer.
  • the upper layer and the lower layer are adhered to each other by either coating adhesive on the upper surface of the lower layer or softening the upper surface portion of the lower layer by heating and thereafter superposing the upper layer on the lower layer.
  • a previously formed upper layer may be superposed upon a lower layer which has just been extruded from an extrusion sheet forming device and thereupon the two layers may be bonded together by applying pressure by pressure rolls.
  • the upper layer and the lower layer may be formed as a single base sheet from the beginning by employing the same ingredients as the lower layer and the upper layer may be formed by irradiating electron beam on the upper half portion of the single base sheet and thereby hardening the upper half portion whereas the lower half portion of the base sheet which is not irradiated with electron beam may constitute the lower layer.
  • the pavement marking sheet material according to the invention may be obtained by, for example, laminating, under heat and pressure, the reflex-­reflecting sheet 1 made in the above described manner with the base sheet 2 which is separately made in the above described manner.
  • a resin which is a mixture of 100 parts of a modified acrylic resin and 10 parts of melamine resin or isocianate as a crosslinker was coated on a carrier film (polyester film) with a thickness of 10 ⁇ m - 30 ⁇ m and was dried and cured to form the surface resin layer 9.
  • a resin which is a mixture of 100 parts of a modified acrylic resin and 15 parts of a crosslinker is coated on the surface resin layer 9 with a thickness of 10 ⁇ m - 40 ⁇ m.
  • glass microspheres 5 having a diameter within the range of 53 ⁇ m -63 ⁇ m and a refractlve index of 2.2 were uniformly dispersed over the resin and the resin was dried and cured to fix the glass microspheres 5 and form the glass microsphere holding layer 6.
  • a resin obtained by dissolving a mixture of 100 parts of a modified acrylic resin and 5 - 10 parts of a crosslinker in a sovlent which is a mixture of MIBK and toluen is coated on the side of the glass microspheres 5 of the glass microsphere holding layer 6 in a coating amount of 30g/m2 as state after volatilizing the solvent and was dried and cured to form the focus adjusting resin layer 7.
  • the reflecting layer 8 was formed by depositing an aluminum reflecting film on the exposed surface of the focus adjusting resin layer 7 by the vacuum deposition method.
  • An acrylic adhesive was coated on a release paper and laminated on the aluminum deposited surface and thereafter the carrier film on the surface resin layer 9 was removed to complete the lower layer portion a of the reflex-reflecting sheet 1.
  • the refractive index of the resin constituting the lower layer portion a of the reflex-reflecting sheet 1 was 1.52.
  • the resin constituting the upper layer portion b on the lower layer portion a of the reflex-reflecting sheet 1 a resin which is a mixture of 100 parts of a modified acrylic resin and 15 parts of a crosslinker was coated on the surface of the lower layer portion a of the reflex-reflecting sheet 1 with a thickness of about 75 m, In a half dried state, glass microspheres 4 having diameters of 350 ⁇ m - 500 ⁇ m and refractive index within the range of 1.90 - 1.92 were dispersed uniformly over the resin so that these glass microspheres 4 will occupy 32% of the entire surface of the resin. Then the resin was dried and cured to form the upper layer portion b.
  • the refractive index of the resin constituting the upper layer portion b was 1.52.
  • the double layer structure consisting of the upper layer made of a relatively hard material having excellent durability to various mechanical forces and the lower layer made of a relatively soft material having an excellent conformability to the irregular pavement surface was adopted.
  • For producing the upper layer 30 parts of NBR, 5 parts of BR, 15 parts of petroleum resin, 30 parts of TiO2 and 140 parts of CaCO3 were blended and formed into a sheet having a thickness of 0.7 mm and a width of 1,000 mm through an extrusion process at a processing temperature of 90° C.
  • For producing the lower layer 30 parts of NBR, 5 parts of BR, 15 parts of petroleum resin, 30 parts of TiO2, 140 parts of CaCO3 , 5 parts of liquid rubber, 7 parts of chlorinated polyethylene and 5 parts of D.O.P. were blended and formed into a sheet having a thickness of 0.7 mm and a width of 1,000 mm through an extrusion process at a processing temperature of 90° C in the same manner as in producing the upper layer.
  • An adhesive layer 11 was formed by superposing a release paper coated with a pressure sensitive adhesive to a thickness of 100 ⁇ m on the lower surface of the lower layer. Then, a pressure sensitive adhesive was coated on the upper surface of the lower layer and then the upper layer was superposed on the lower layer and the two layers were bonded together. A release paper coated with a pressure sensitive adhesive was superposed on the upper surface of the upper layer whereby the base sheet 2 was completed.
  • the release paper laminated on the lower surface of the reflex-reflecting sheet 1 and the release paper laminated on the upper surface of the upper layer of the base sheet 2 were removed.
  • the reflex-reflecting sheet 1 and the base sheet 2 were laminated to each other on their sides on which the adhesive was coated by pressing them together under heat whereby the high-brightness all-weather type pavement marking sheet material according to the invention was completed.
  • the brightness in reflection of the pavement marking sheet material of the above described example was measured with respect to each of a dry state and a wet state of the glass microspheres with the angle of incidence being varied between 60° and 80° .
  • the brightness in reflection of the pavement marking sheet material of the type described in the above mentioned U.S.Patent No. 4,388,359 (hereinafter referred to as "prior art A” and the pavement marking sheet material of the type described in the above mentioned Japanese Patent Application Laid-open No. 211403/1987 (hereinafter referred to as "prior art B") was measured under the same measuring conditions as the example of the present invention.
  • the brightness in reflection was measured by the brightness measuring method according to JISZ9117.
  • the pavement marking sheet material according to the invention has a higher brightness in reflection than the prior art products at a large angle of incidence of 60° - 80°.
  • the results of measurement show also that the brightness in reflection of the prior art products is lower when the glass microspheres are wet than when they are dry whereas the brightness in reflection of the pavement marking sheet material according to the present invention is higher when the glass microspheres are wet than when they are dry.
  • the brightness in reflection when the amount of coating of the resin constituting the focus adjusting resin layer 7 is varied was measured by employing the same measuring method as was employed in the measurement described above. Results of measurement are shown in the following Table 2 and Fig. 4 in which a specimen in which the coating amount was 23.49 g/m2 is designated as Sample A, a specimen in which the coating amount was 29.77 g/m2 as Sample B, a specimen in which the coating amount was 35.38 g/m2 as Sample C respectively.
  • the highest brightness in reflection is obtained in the case where the film thickness of the focus adjusting resin layer 7 Is that of the Sample B.
  • the results of measurement show also that, in all of the Samples A, B and C, a higher brightness in reflection can be obtained when the glass microspheres are wet than when they are dry.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Glass Compositions (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Dental Preparations (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Golf Clubs (AREA)
  • Toys (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Laminated Bodies (AREA)
EP90302123A 1989-03-01 1990-02-28 Allwettertaugliche Strassenmarkierungsmaterialbahn mit hoher Sichtbarkeit Expired - Lifetime EP0385746B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90302123T ATE82785T1 (de) 1989-03-01 1990-02-28 Allwettertaugliche strassenmarkierungsmaterialbahn mit hoher sichtbarkeit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1049363A JPH0823739B2 (ja) 1989-03-01 1989-03-01 高輝度全天候型路面標示用シート材
JP49363/89 1989-03-01

Publications (2)

Publication Number Publication Date
EP0385746A1 true EP0385746A1 (de) 1990-09-05
EP0385746B1 EP0385746B1 (de) 1992-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90302123A Expired - Lifetime EP0385746B1 (de) 1989-03-01 1990-02-28 Allwettertaugliche Strassenmarkierungsmaterialbahn mit hoher Sichtbarkeit

Country Status (11)

Country Link
EP (1) EP0385746B1 (de)
JP (1) JPH0823739B2 (de)
AT (1) ATE82785T1 (de)
CA (1) CA2011055C (de)
DE (1) DE69000488T2 (de)
DK (1) DK52690A (de)
FI (1) FI901022A0 (de)
HK (1) HK70793A (de)
NO (1) NO900938L (de)
PT (1) PT93295A (de)
SG (1) SG33393G (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997000357A1 (en) * 1995-06-16 1997-01-03 Minnesota Mining And Manufacturing Company Retroreflective structure and process for producing the same
WO1997001676A1 (en) * 1995-06-29 1997-01-16 Minnesota Mining And Manufacturing Company High entrance angle retroreflective article and method of making
ES2096520A1 (es) * 1994-05-24 1997-03-01 Pinturas Jaque S L Señal horizontal sonora.
WO1998023818A1 (en) * 1996-11-26 1998-06-04 Minnesota Mining And Manufacturing Company Wet retroreflective pavement marking articles
WO1998053145A1 (en) * 1997-05-20 1998-11-26 Akzo Nobel N.V. Retroreflecting road marking system
WO2000023655A1 (en) * 1998-10-20 2000-04-27 3M Innovative Properties Company Pavement marking articles having enhanced retroreflectivity under dry or wet conditions and method for making same
WO2000060386A1 (en) * 1999-04-02 2000-10-12 3M Innovative Properties Company Retroreflective article
WO2003005333A1 (en) * 2001-07-06 2003-01-16 Graziano Fabiani Road sign band and manufacturing method thereof
US6703108B1 (en) 1995-06-29 2004-03-09 3M Innovative Properties Company Wet retroreflective marking material
RU2447227C1 (ru) * 2010-09-21 2012-04-10 Сергей Владимирович Карпеев Горизонтальная дорожная разметка
WO2017062266A1 (en) * 2015-10-06 2017-04-13 3M Innovative Properties Company Slip-resistant, self illuminated front lit article
ES2624536A1 (es) * 2016-01-13 2017-07-14 Industrias Samar't, S.A. Lámina retro-reflectante y procedimiento de obtención de la misma
US20210395965A1 (en) * 2018-02-06 2021-12-23 3M Innovative Properties Company Decorative Sheet for Road Surface, Precursor For Graphic Construct, Method of Producing Graphic Construct Sheet, And Method of Installing Decorative Sheet for Road Surface

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9106946D0 (en) * 1991-04-03 1991-05-22 R S Clare & Company Limited Road marking compositions
ZA965383B (en) * 1995-06-29 1997-12-25 Minnesota Mining & Mfg High entrance angle retroreflective article and method of making.
DE69604402T2 (de) * 1995-06-29 2000-03-23 Minnesota Mining & Mfg Retroreflektierender markierungskörper für nasse umgebungsbedingungen
US6303058B1 (en) 1996-06-27 2001-10-16 3M Innovative Properties Company Method of making profiled retroreflective marking material
US6000804A (en) * 1997-09-30 1999-12-14 Shiseido Co., Ltd. Colored light retroreflective material and retroreflective hologram reconstructor using the same
US6247818B1 (en) 1998-10-20 2001-06-19 3M Innovative Properties Company Method for making retroreflective elements having enhanced retroreflectivity under dry and/or wet conditions
JP4852251B2 (ja) * 2005-02-14 2012-01-11 アイカ工業株式会社 塗料組成物
KR102530680B1 (ko) * 2021-10-18 2023-05-10 주) 길빛 시인성이 우수한 차선 도색공법

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1049818A (fr) * 1952-01-24 1954-01-04 Procédé pour la production de revêtements à grand pouvon refléchissant sur des surfaces ou des corps, particulièrement des panneaux et des signaux de circulation
DE3022300A1 (de) * 1979-06-14 1980-12-18 Minnesota Mining & Mfg Blatt- bzw. bahnmaterial zur herstellung dauerhafter fahrbahnmarkierungen
FR2558185A1 (fr) * 1984-01-13 1985-07-19 Seibu Polymer Kasei Kk Matiere en feuilles pour signalisation sur chaussees d'une grande durabilite
GB2165773A (en) * 1984-10-22 1986-04-23 Seibu Polymer Kasei Kk High-brightness pavement marking sheet material
EP0237315A2 (de) * 1986-03-11 1987-09-16 SEIBU POLYMER KASEI KABUSHIKI KAISHA also trading as SEIBU POLYMER CHEMICAL COMPANY LIMITED Allwetter-taugliche Strassenmarkierungsmaterialbahn
CH665665A5 (en) * 1984-10-08 1988-05-31 Moses Bollag Horizontal road surface marking - incorporates glass beads protruding from marking material
EP0299744A2 (de) * 1987-07-17 1989-01-18 Atom Chemical Paint Co., Ltd. Zweilagiges Bahnmaterial zum Markieren von Verkehrsflächen
EP0304405A1 (de) * 1987-06-25 1989-02-22 SNOLINE S.p.A. Vorgefertigtes Band für zeitweilige Strassenmarkierung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS561086A (en) * 1979-06-16 1981-01-08 Process Bunkadou Kk Producing reflective object containing fine transparent balls
JPS57133004U (de) * 1981-02-16 1982-08-19
JPS63291086A (ja) * 1987-05-25 1988-11-28 三共理化学株式会社 再帰反射物とその製造法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1049818A (fr) * 1952-01-24 1954-01-04 Procédé pour la production de revêtements à grand pouvon refléchissant sur des surfaces ou des corps, particulièrement des panneaux et des signaux de circulation
DE3022300A1 (de) * 1979-06-14 1980-12-18 Minnesota Mining & Mfg Blatt- bzw. bahnmaterial zur herstellung dauerhafter fahrbahnmarkierungen
FR2558185A1 (fr) * 1984-01-13 1985-07-19 Seibu Polymer Kasei Kk Matiere en feuilles pour signalisation sur chaussees d'une grande durabilite
CH665665A5 (en) * 1984-10-08 1988-05-31 Moses Bollag Horizontal road surface marking - incorporates glass beads protruding from marking material
GB2165773A (en) * 1984-10-22 1986-04-23 Seibu Polymer Kasei Kk High-brightness pavement marking sheet material
EP0237315A2 (de) * 1986-03-11 1987-09-16 SEIBU POLYMER KASEI KABUSHIKI KAISHA also trading as SEIBU POLYMER CHEMICAL COMPANY LIMITED Allwetter-taugliche Strassenmarkierungsmaterialbahn
EP0304405A1 (de) * 1987-06-25 1989-02-22 SNOLINE S.p.A. Vorgefertigtes Band für zeitweilige Strassenmarkierung
EP0299744A2 (de) * 1987-07-17 1989-01-18 Atom Chemical Paint Co., Ltd. Zweilagiges Bahnmaterial zum Markieren von Verkehrsflächen

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ES2096520A1 (es) * 1994-05-24 1997-03-01 Pinturas Jaque S L Señal horizontal sonora.
WO1997000357A1 (en) * 1995-06-16 1997-01-03 Minnesota Mining And Manufacturing Company Retroreflective structure and process for producing the same
WO1997001676A1 (en) * 1995-06-29 1997-01-16 Minnesota Mining And Manufacturing Company High entrance angle retroreflective article and method of making
WO1997001679A1 (en) * 1995-06-29 1997-01-16 Minnesota Mining And Manufacturing Company High entrance angle retroreflective article with spherical refracting elements
US6703108B1 (en) 1995-06-29 2004-03-09 3M Innovative Properties Company Wet retroreflective marking material
WO1998023818A1 (en) * 1996-11-26 1998-06-04 Minnesota Mining And Manufacturing Company Wet retroreflective pavement marking articles
WO1998053145A1 (en) * 1997-05-20 1998-11-26 Akzo Nobel N.V. Retroreflecting road marking system
KR100702923B1 (ko) * 1998-10-20 2007-04-05 쓰리엠 이노베이티브 프로퍼티즈 캄파니 건조 또는 습윤 조건 하에서 향상된 재귀반사성을 갖는포장도로 표시 물품 및 이것을 제조하는 방법
WO2000023655A1 (en) * 1998-10-20 2000-04-27 3M Innovative Properties Company Pavement marking articles having enhanced retroreflectivity under dry or wet conditions and method for making same
WO2000060386A1 (en) * 1999-04-02 2000-10-12 3M Innovative Properties Company Retroreflective article
WO2003005333A1 (en) * 2001-07-06 2003-01-16 Graziano Fabiani Road sign band and manufacturing method thereof
US7029135B2 (en) 2001-07-06 2006-04-18 Graziano Fabiani Road sign band and manufacturing method thereof
RU2447227C1 (ru) * 2010-09-21 2012-04-10 Сергей Владимирович Карпеев Горизонтальная дорожная разметка
WO2017062266A1 (en) * 2015-10-06 2017-04-13 3M Innovative Properties Company Slip-resistant, self illuminated front lit article
ES2624536A1 (es) * 2016-01-13 2017-07-14 Industrias Samar't, S.A. Lámina retro-reflectante y procedimiento de obtención de la misma
US20210395965A1 (en) * 2018-02-06 2021-12-23 3M Innovative Properties Company Decorative Sheet for Road Surface, Precursor For Graphic Construct, Method of Producing Graphic Construct Sheet, And Method of Installing Decorative Sheet for Road Surface

Also Published As

Publication number Publication date
CA2011055A1 (en) 1990-09-01
DK52690D0 (da) 1990-02-28
JPH0823739B2 (ja) 1996-03-06
ATE82785T1 (de) 1992-12-15
PT93295A (pt) 1991-10-15
FI901022A0 (fi) 1990-02-28
DK52690A (da) 1990-09-02
JPH02228692A (ja) 1990-09-11
NO900938D0 (no) 1990-02-28
DE69000488D1 (de) 1993-01-07
EP0385746B1 (de) 1992-11-25
CA2011055C (en) 1995-04-25
HK70793A (en) 1993-07-30
SG33393G (en) 1993-05-21
NO900938L (no) 1990-09-03
DE69000488T2 (de) 1993-06-09

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