EP0041335A2 - Preformed road marking - Google Patents

Preformed road marking Download PDF

Info

Publication number
EP0041335A2
EP0041335A2 EP81302208A EP81302208A EP0041335A2 EP 0041335 A2 EP0041335 A2 EP 0041335A2 EP 81302208 A EP81302208 A EP 81302208A EP 81302208 A EP81302208 A EP 81302208A EP 0041335 A2 EP0041335 A2 EP 0041335A2
Authority
EP
European Patent Office
Prior art keywords
marking
reinforcement
road marking
preformed
preformed road
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.)
Withdrawn
Application number
EP81302208A
Other languages
German (de)
French (fr)
Other versions
EP0041335A3 (en
Inventor
Mark Anthony Pacey
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0041335A2 publication Critical patent/EP0041335A2/en
Publication of EP0041335A3 publication Critical patent/EP0041335A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

  • the present invention relates to preformed road markings.
  • road marking as used herein is to be interpreted as including markings for airport runways, car parks, recreation areas, oil rig decks, roofs, warehouse floors, and other suitable surfaces.
  • preformed road markings are well known. Such markings may be made, for example, of a rigid plastic material such as P.V.C. sheeting or a thermoplastics material such as that disclosed in British Standard Specification No 3262, containing resin or rosin. Some of these preformed road markings, such as those disclosed in French patent Specification No 1175968 U.K. patent Specification No 1444926 and U.S. patent Specification No 3844669, are designed to be attached to the road surface by adhesive and the invention is not concerned with such markings.
  • a problem that can arise with these latter road markings is that they can shatter during transit or handling, particularly where the road marking is brittle. Thermoplastic markings of this kind are also liable to become distorted during handling.
  • a further problem is that there is a practical limit of about 1 metre to the length of each marking and to construct, for example, a letter having a height greater than 1 metre a plurality of markings is required. With a complicated letter such as "W" as many as eight sections may be required which inevitably leads to problems in ensuring that the individual sections are correctly aligned.
  • the object of the invention is to mitigate these problems.
  • a preformed road marking suitable for heat bonding to a road surface comprising a body of a thermoplastic material that can be thermoset more than once and reinforcement incorporated into or onto the said body.
  • the reinforcement can either remain in the marking after laying or be removeable during heat-bonding to the road surface on which it is laid, and may comprise a plurality of individual strands, a mesh, a sheet of film or a coating.
  • the material used can be synthetic material such as nylon or cotton, glass fibres, metal wire or metal foil.
  • the reinforcement When the reinforcement is applied.to the upper surface it is preferably made of a material which on heat bonding is burnt or melted from the surface of the marking material.
  • the reinforcement should produce little or no surface discoloration and does not impair the overal effectiveness of the marking. Where the reinforcement remains in the marking it will be quickly worn away by passing traffice.
  • the reinforcement may be incorporated into the body of the marking material to be worn away as the marking is eroded.
  • the reinforcement will be chosen such that it does not constitute a hazard or in any way impair the effectiveness of the marking or its bonding to the road surface.
  • the reinforcement is in the form of crossed strands, for example a mesh, and lies on the lower surface of the marking the gaps left by the strands (or the gauge of the mesh) must be large enough so that the bonding between the road surface and the marking is not impaired, and small enough to provide adequate support for the marking.
  • the marking is to be bonded to the road surface by heat from above the marking, the form and material of the reinforcement must be chosen so that the bonding is not effected. Heat bonding can also be achieved by heating the underside of the marking. In this case it is not necessary for reinforcement in the marking or on the upper surface to be able to transmit the heat, provided that there is enough of the body thermoplastic material under the reinforcement to provide an adequate bond.
  • metal foil in one piece as well as cut out to form a mesh.
  • the thermoplastic material is preferably one containing a filler, aggregate, pigment and a thermoplastic resinous or rosinous binder. Optionally it may also contain reflective particles.
  • a thermoplastic will usually not be flexible, but a flexible marking can be prepared using the disclosure of British Patent Specification No 2,030,586A (Application No 7923314). A marking that is flexible at room temperature can be advantageous when a continuous coil of road marking is to be prepared. Such a coil may be packed in a drum or the like and uncoiled on site prior to bonding to the road surface, or may be dispensed from a mechanical dispenser. Long stretches of single or double white or yellow lines are used along extensive stretches of road way.
  • thermosetting thermoplastic which can be melted after its first setting and will set again in a required shape is used.
  • the thermoplastic material described in British Standard Specification No 3262 is suitable, optionally with the addition of a plasticiser such as vegetable oil for a flexible marking.
  • the selected thermoplastic material or mixture is heated and formed into a sheet of required thickness on a conveyor, to be cut into the required shapes after it has cooled.
  • the reinforcement is incorporated into or onto the sheet of thermoplastic material before it is cut.
  • a protective film lies on top of the conveyor and water from a water cooling system wets the film to prevent a permanent bonding between the hot thermoplastic material and the film.
  • a layer of 5cm mesh of polypropylene or polyethylene material is laid on the film and the thermoplastic sets with the reinforcement incorporated on the bottom thereof. In some cases the mesh moves up into the thermoplastic material.
  • thermoplastic material as described in example 1 is used, but the reinforcement material is applied to the upper surface of the sheet as it is setting.
  • a film of polyethylene sheeting such as that sold under the trade name "Visqueen” is applied to the thermoplastic while it is sufficiently hot to form a good bond with the thermoplastic material.
  • the film On laying the marking to the road surface the film is burnt off or melted and leaves a marking of thermoplastic material only, without visually effecting the road marking.
  • a reinforcement of individual strands or a mesh or any other arrangement which provides longitudinal and lateral support, could be used in the same way on top of the marking.
  • the material used must be one that melts without distorting the thermoplastic when heated if the marking is to be heat bonded from above. It should also not effect the colour or shape of the marking on bonding, or visibly impair the laid marking.
  • a suitable mesh could be provided by stamping out a polyethylene sheet.
  • a temporary marking may be produced by using a non- deteriorating mesh, such that the thermoplastics material marking can be pulled up from the road surface on reheating up to the softening point and not to the melting point of the thermoplastic so that the marking remains solid and can be removed in one piece.
  • the gauge of the mesh can vary across the marking so that on heat bonding only the edges of the marking would adhere to the road surface.
  • the reinforcement prevents the marking falling apart. Handling and packing are therefore facilitated. Moreover once the marking has been applied to the road the appearance is not impaired and the marking is not distorted. In hot weather the reinforcement enables the marking to be moved around on the road surface for positioning without distortion.
  • the reinforcement enables relatively large markings to be made in one piece. Where a marking is too large to be handled or packed conveniently, the marking material can be scored whilst leaving the reinforcement intact to serve as a hinge. The marking can then be folded to ease handling and packing and then unfolded on site to give the desired one piece marking. For example, a 10 metres strip may be hinged at one metre intervals and once on site may be unfolded and used as a whole or cut along one of the hinges to give a strip of the required length.
  • markings may also be made in two or more sections.
  • 4 metre and 6 metre arrows may be constructed from a standard hinged stem and completed by adding various arrow heads as necessary, the heads being hinged or not depending on their size.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

A preformed road marking suitable for heat bonding to the surface on which it is to be laid without the use of adhesive comprises a body of a thermoplastic material which can be thermoset more than once and incorporates a reinforcement in or on the body. The reinforcement may be in the form of individual strands, or mesh, or a film or coating selected so that the effectiveness of the marking is not impaired. Advantageously the reinforcement is removed, for example by melting, during laying to the surface. The use of the reinforcement in the marking holds the marking together in the event of cracing or shattering and during handling and it enables sections of marking to be folded for packing and unfolded and laid with ease on arrival at the marking site.

Description

  • The present invention relates to preformed road markings. The term "road marking" as used herein is to be interpreted as including markings for airport runways, car parks, recreation areas, oil rig decks, roofs, warehouse floors, and other suitable surfaces.
  • The use of preformed road markings is well known. Such markings may be made, for example, of a rigid plastic material such as P.V.C. sheeting or a thermoplastics material such as that disclosed in British Standard Specification No 3262, containing resin or rosin. Some of these preformed road markings, such as those disclosed in French patent Specification No 1175968 U.K. patent Specification No 1444926 and U.S. patent Specification No 3844669, are designed to be attached to the road surface by adhesive and the invention is not concerned with such markings. Others of the markings, such as that disclosed in British patent Specification No 2030586A, can be thermoset more than once and it is possible to attach such markings to the road surface by heat bonding, i.e.heating the thermoplastic marking to its melting point to create a bond between the marking and the road surface for example with a blow torch. It is with these latter type of markings that the present invention relates.
  • A problem that can arise with these latter road markings is that they can shatter during transit or handling, particularly where the road marking is brittle. Thermoplastic markings of this kind are also liable to become distorted during handling. A further problem is that there is a practical limit of about 1 metre to the length of each marking and to construct, for example, a letter having a height greater than 1 metre a plurality of markings is required. With a complicated letter such as "W" as many as eight sections may be required which inevitably leads to problems in ensuring that the individual sections are correctly aligned.
  • The object of the invention is to mitigate these problems.
  • According to the present invention there is provided a preformed road marking suitable for heat bonding to a road surface comprising a body of a thermoplastic material that can be thermoset more than once and reinforcement incorporated into or onto the said body.
  • The reinforcement can either remain in the marking after laying or be removeable during heat-bonding to the road surface on which it is laid, and may comprise a plurality of individual strands, a mesh, a sheet of film or a coating. The material used can be synthetic material such as nylon or cotton, glass fibres, metal wire or metal foil.
  • When the reinforcement is applied.to the upper surface it is preferably made of a material which on heat bonding is burnt or melted from the surface of the marking material. The reinforcement should produce little or no surface discoloration and does not impair the overal effectiveness of the marking. Where the reinforcement remains in the marking it will be quickly worn away by passing traffice.
  • Alternatively, the reinforcement may be incorporated into the body of the marking material to be worn away as the marking is eroded. In such as case, the reinforcement will be chosen such that it does not constitute a hazard or in any way impair the effectiveness of the marking or its bonding to the road surface.
  • Where the reinforcement is in the form of crossed strands, for example a mesh, and lies on the lower surface of the marking the gaps left by the strands (or the gauge of the mesh) must be large enough so that the bonding between the road surface and the marking is not impaired, and small enough to provide adequate support for the marking. If the marking is to be bonded to the road surface by heat from above the marking, the form and material of the reinforcement must be chosen so that the bonding is not effected. Heat bonding can also be achieved by heating the underside of the marking. In this case it is not necessary for reinforcement in the marking or on the upper surface to be able to transmit the heat, provided that there is enough of the body thermoplastic material under the reinforcement to provide an adequate bond. Thus it would be possible to use metal foil, in one piece as well as cut out to form a mesh.
  • The thermoplastic material is preferably one containing a filler, aggregate, pigment and a thermoplastic resinous or rosinous binder. Optionally it may also contain reflective particles. Such a thermoplastic will usually not be flexible, but a flexible marking can be prepared using the disclosure of British Patent Specification No 2,030,586A (Application No 7923314). A marking that is flexible at room temperature can be advantageous when a continuous coil of road marking is to be prepared. Such a coil may be packed in a drum or the like and uncoiled on site prior to bonding to the road surface, or may be dispensed from a mechanical dispenser. Long stretches of single or double white or yellow lines are used along extensive stretches of road way.
    • EXAMPLE 1
  • A thermosetting thermoplastic which can be melted after its first setting and will set again in a required shape is used. The thermoplastic material described in British Standard Specification No 3262 is suitable, optionally with the addition of a plasticiser such as vegetable oil for a flexible marking. The selected thermoplastic material or mixture is heated and formed into a sheet of required thickness on a conveyor, to be cut into the required shapes after it has cooled. The reinforcement is incorporated into or onto the sheet of thermoplastic material before it is cut.
  • A protective film lies on top of the conveyor and water from a water cooling system wets the film to prevent a permanent bonding between the hot thermoplastic material and the film. A layer of 5cm mesh of polypropylene or polyethylene material is laid on the film and the thermoplastic sets with the reinforcement incorporated on the bottom thereof. In some cases the mesh moves up into the thermoplastic material.
    • EXAMPLE 2
  • A thermoplastic material as described in example 1 is used, but the reinforcement material is applied to the upper surface of the sheet as it is setting. A film of polyethylene sheeting such as that sold under the trade name "Visqueen" is applied to the thermoplastic while it is sufficiently hot to form a good bond with the thermoplastic material. On laying the marking to the road surface the film is burnt off or melted and leaves a marking of thermoplastic material only, without visually effecting the road marking.
  • A reinforcement of individual strands or a mesh or any other arrangement which provides longitudinal and lateral support, could be used in the same way on top of the marking. The material used must be one that melts without distorting the thermoplastic when heated if the marking is to be heat bonded from above. It should also not effect the colour or shape of the marking on bonding, or visibly impair the laid marking. A suitable mesh could be provided by stamping out a polyethylene sheet.
  • A temporary marking may be produced by using a non- deteriorating mesh, such that the thermoplastics material marking can be pulled up from the road surface on reheating up to the softening point and not to the melting point of the thermoplastic so that the marking remains solid and can be removed in one piece. Alternatively the gauge of the mesh can vary across the marking so that on heat bonding only the edges of the marking would adhere to the road surface.
  • Should the road marking material shatter or otherwise be broken, the reinforcement prevents the marking falling apart. Handling and packing are therefore facilitated. Moreover once the marking has been applied to the road the appearance is not impaired and the marking is not distorted. In hot weather the reinforcement enables the marking to be moved around on the road surface for positioning without distortion.
  • The reinforcement enables relatively large markings to be made in one piece. Where a marking is too large to be handled or packed conveniently, the marking material can be scored whilst leaving the reinforcement intact to serve as a hinge. The marking can then be folded to ease handling and packing and then unfolded on site to give the desired one piece marking. For example, a 10 metres strip may be hinged at one metre intervals and once on site may be unfolded and used as a whole or cut along one of the hinges to give a strip of the required length.
  • However, markings may also be made in two or more sections. For example 4 metre and 6 metre arrows may be constructed from a standard hinged stem and completed by adding various arrow heads as necessary, the heads being hinged or not depending on their size.

Claims (10)

1. A preformed road marking suitable for heat bonding to the surface on which it is to be laid without the use of adhesive and comprising a body of a thermoplastic material which can be thermoset more than once characterised in that a reinforcement is incorporated into or onto the said body.
2. A preformed road marking according to claim 1 characterised in that said reinforcement is removeable from the marking during heat bonding to the road surface.
3. A preformed road marking according to claim 1 or 2 characterised in that said reinforcement is in the form of strands of material along and across the body.
4. A preformed road marking according to any of claims 1 to 3 characterised in that said reinforcement is in the form of a mesh.
5. A preformed road marking according to claim 1 or 2 characterised in that said reinforcement is in the form of a film of material.
6. A preformed road marking according to claim 4 or 5 characterised in that said material is selected from i) polyethylene sheeting and ii) metal foil.
7. A preformed road marking material according to claim 4 characterised in that the material is selected from i) polypropylene, ii) polyethylene, iii) glass fibres iv) cotton and v) flexible metal wire.
8. A preformed road marking according to any of the preceding claims characterised in that the thermoplastic material contains aggregate, filler, thermoplastic resinous or rosinous binder and a suitable pigment.
9. A preformed road marking substantially as herein described with reference to Example 1.
10. A preformed road marking substanitally as herein described with reference to Example 2.
EP81302208A 1980-05-23 1981-05-19 Preformed road marking Withdrawn EP0041335A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8017155 1980-05-23
GB8017155 1980-05-23

Publications (2)

Publication Number Publication Date
EP0041335A2 true EP0041335A2 (en) 1981-12-09
EP0041335A3 EP0041335A3 (en) 1981-12-30

Family

ID=10513638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81302208A Withdrawn EP0041335A3 (en) 1980-05-23 1981-05-19 Preformed road marking

Country Status (5)

Country Link
EP (1) EP0041335A3 (en)
JP (1) JPS5712705A (en)
AU (1) AU7066781A (en)
DK (1) DK225981A (en)
ZA (1) ZA813211B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304405A1 (en) * 1987-06-25 1989-02-22 SNOLINE S.p.A. Prefabricated temporary use signaletics strip
GB2243860A (en) * 1990-05-03 1991-11-13 Steven Pitchforth Speed restricting device
WO2001090485A1 (en) 2000-05-25 2001-11-29 Lineclean Limited Thoroughfare marking removal
WO2003027396A1 (en) * 2001-09-27 2003-04-03 3M Innovative Properties Company Pavement markings comprising synthetic polymeric fibers
US8119202B2 (en) * 2001-12-04 2012-02-21 Flint Trading, Inc. Method of applying a thermally settable coating to a patterned substrate
US8133540B2 (en) 2002-12-03 2012-03-13 Flint Trading, Inc. Method of applying a thermally settable coating to a patterned substrate
WO2013015756A1 (en) * 2011-07-28 2013-01-31 Petrov Viacheslav Vasyliyoviych Retroreflector element and method of fixation thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113573862B (en) * 2019-01-15 2023-05-26 恩尼斯-弗林特股份有限公司 System and method for manufacturing thermoplastic products and compositions

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2065872A (en) * 1934-10-26 1936-12-29 Walter S Rockwell Sign
FR1231790A (en) * 1959-04-15 1960-10-03 Siplast Soc Nouvelle Signaling strip
FR1328473A (en) * 1962-04-19 1963-05-31 Chomarat & Cie Process for manufacturing a road sign strip and equipment for its installation
FR1332307A (en) * 1962-07-26 1963-07-12 Prefabricated semi-rigid ground signaling tapes
FR1358536A (en) * 1963-03-04 1964-04-17 Improvements to ground signaling by prefabricated strips
FR86440E (en) * 1964-09-25 1966-02-04 Improvements to ground signaling by prefabricated strips
DE6750032U (en) * 1967-07-18 1969-01-02 Evomastics Ltd SELF-ADHESIVE, MULTI-LAYER PLASTIC SHEET
CH490574A (en) * 1968-09-03 1970-05-15 Hassler Gottfried Floor marking, in particular for road surfaces
DE7004861U (en) * 1970-02-12 1970-06-25 Jordan Mathias PLATE OR PATH FOR THE FORMATION OF ZEBRA STRIPES
DE1658657B1 (en) * 1967-04-27 1970-08-06 Debuschewitz Kg H Process for the production of painted or poured thin permanent markings on the road surface
DE7034566U (en) * 1970-12-17 1971-04-15 Jordan Mathias PLATE OR RAIL FOR THE FORMATION OF ZEBRA STRIPS WITH REINFORCEMENT MADE OF BITUMEN PAPER.
DE1759995A1 (en) * 1967-06-27 1972-01-27 Syntress Ivry Method for laying plastic tapes, in particular marking tapes made of polyvinyl chloride
FR2286242A1 (en) * 1974-09-30 1976-04-23 Eigenmann Ludwig ADVANCED BAND FOR HORIZONTAL ROAD SIGNALS
DE2716827A1 (en) * 1976-04-15 1977-10-27 Eigenmann Ludwig MULTI-LAYER TAPE OR STRIP MATERIAL FOR THE PURPOSES OF STREET SURFACE MARKING
DE2914065A1 (en) * 1978-04-07 1979-10-18 Eigenmann Ludwig ROAD TRAFFIC MARKING FOR APPLICATION ON THE SURFACE OF A ROAD CEILING AND THE MANUFACTURING PROCESS FOR IT
GB2030586A (en) * 1978-07-11 1980-04-10 Pacey B Road marking preformed from a thermoplastic composition

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2065872A (en) * 1934-10-26 1936-12-29 Walter S Rockwell Sign
FR1231790A (en) * 1959-04-15 1960-10-03 Siplast Soc Nouvelle Signaling strip
FR1328473A (en) * 1962-04-19 1963-05-31 Chomarat & Cie Process for manufacturing a road sign strip and equipment for its installation
FR1332307A (en) * 1962-07-26 1963-07-12 Prefabricated semi-rigid ground signaling tapes
FR1358536A (en) * 1963-03-04 1964-04-17 Improvements to ground signaling by prefabricated strips
FR86440E (en) * 1964-09-25 1966-02-04 Improvements to ground signaling by prefabricated strips
DE1658657B1 (en) * 1967-04-27 1970-08-06 Debuschewitz Kg H Process for the production of painted or poured thin permanent markings on the road surface
DE1759995A1 (en) * 1967-06-27 1972-01-27 Syntress Ivry Method for laying plastic tapes, in particular marking tapes made of polyvinyl chloride
DE6750032U (en) * 1967-07-18 1969-01-02 Evomastics Ltd SELF-ADHESIVE, MULTI-LAYER PLASTIC SHEET
CH490574A (en) * 1968-09-03 1970-05-15 Hassler Gottfried Floor marking, in particular for road surfaces
DE7004861U (en) * 1970-02-12 1970-06-25 Jordan Mathias PLATE OR PATH FOR THE FORMATION OF ZEBRA STRIPES
DE7034566U (en) * 1970-12-17 1971-04-15 Jordan Mathias PLATE OR RAIL FOR THE FORMATION OF ZEBRA STRIPS WITH REINFORCEMENT MADE OF BITUMEN PAPER.
FR2286242A1 (en) * 1974-09-30 1976-04-23 Eigenmann Ludwig ADVANCED BAND FOR HORIZONTAL ROAD SIGNALS
DE2716827A1 (en) * 1976-04-15 1977-10-27 Eigenmann Ludwig MULTI-LAYER TAPE OR STRIP MATERIAL FOR THE PURPOSES OF STREET SURFACE MARKING
DE2914065A1 (en) * 1978-04-07 1979-10-18 Eigenmann Ludwig ROAD TRAFFIC MARKING FOR APPLICATION ON THE SURFACE OF A ROAD CEILING AND THE MANUFACTURING PROCESS FOR IT
GB2030586A (en) * 1978-07-11 1980-04-10 Pacey B Road marking preformed from a thermoplastic composition

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304405A1 (en) * 1987-06-25 1989-02-22 SNOLINE S.p.A. Prefabricated temporary use signaletics strip
GB2243860A (en) * 1990-05-03 1991-11-13 Steven Pitchforth Speed restricting device
GB2243860B (en) * 1990-05-03 1994-02-23 Steven Pitchforth Speed restricting device
WO2001090485A1 (en) 2000-05-25 2001-11-29 Lineclean Limited Thoroughfare marking removal
WO2003027396A1 (en) * 2001-09-27 2003-04-03 3M Innovative Properties Company Pavement markings comprising synthetic polymeric fibers
US7169831B2 (en) 2001-09-27 2007-01-30 3M Innovative Properties Company Pavement marking composition comprising ceramic fibers
US8119202B2 (en) * 2001-12-04 2012-02-21 Flint Trading, Inc. Method of applying a thermally settable coating to a patterned substrate
US8133540B2 (en) 2002-12-03 2012-03-13 Flint Trading, Inc. Method of applying a thermally settable coating to a patterned substrate
WO2013015756A1 (en) * 2011-07-28 2013-01-31 Petrov Viacheslav Vasyliyoviych Retroreflector element and method of fixation thereof

Also Published As

Publication number Publication date
JPS5712705A (en) 1982-01-22
ZA813211B (en) 1982-05-26
AU7066781A (en) 1981-11-26
EP0041335A3 (en) 1981-12-30
DK225981A (en) 1981-11-24

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