WO2015123625A1 - Marquages de chaussée thermoplastique durable - Google Patents

Marquages de chaussée thermoplastique durable Download PDF

Info

Publication number
WO2015123625A1
WO2015123625A1 PCT/US2015/016016 US2015016016W WO2015123625A1 WO 2015123625 A1 WO2015123625 A1 WO 2015123625A1 US 2015016016 W US2015016016 W US 2015016016W WO 2015123625 A1 WO2015123625 A1 WO 2015123625A1
Authority
WO
WIPO (PCT)
Prior art keywords
pavement
thermoplastic
resins
pavement marking
composition
Prior art date
Application number
PCT/US2015/016016
Other languages
English (en)
Inventor
Eugene H. Carlson
Matthew D. Wilding
Gregg A. Patnode
James P. Endle
Original Assignee
3M Innovative Properties Company
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 3M Innovative Properties Company filed Critical 3M Innovative Properties Company
Publication of WO2015123625A1 publication Critical patent/WO2015123625A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • 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 disclosure generally relates to thermoplastic pavement markings, to thermoplastic pavement marking compositions, and to methods of making and applying these pavement markings and compositions.
  • Pavement or road markings guide and direct motorists and pedestrians traveling along roadways and paths.
  • Pavement or road markings can be used on, for example, roads, highways, parking lots, and recreational trails, to form stripes, bars, and markings for the delineation of lanes, crosswalks, parking spaces, symbols, legends, and the like. Paint was a preferred pavement marking for many years. However, modern pavement marking materials offer significant advantages over paint, such as increased visibility, retroreflectance, improved durability, and temporary and/or removable marking options. Further, currently available road marking materials can be, for example, sheets, films, tapes, sprayable compositions, and raised pavement markers.
  • Pavement or road markings are subject to continuous wear and exposure to the elements as well as road chemicals. Consequently, there is a need for pavement or road marking compositions and materials that provide durability and retained reflectivity once applied to a surface and dried and/or hardened.
  • Thermoplastic polymers are often included in road markings because they are highly durable. Additionally, the use of thermoplastic polymers in road markings results in shorter track- free time.
  • Track- free time is the time between application and the point where material will no longer transfer to vehicle tires. Shorter track-free times increase marking efficiency by reducing or eliminating the need for traffic disruption through such measures as closing lanes or placing traffic control devices to protect such markings.
  • thermoplastic road marking materials include, for example, ethylene acrylic acid (“EAA”) polymers (see, for example, U.S. Patent No. 6,217,252 (Tolliver)) or ethylene vinyl acetate (“EVA”) polymers (see, for example, U.S. Patent No. 5,536,569 (Lasch et al.)).
  • EAA ethylene acrylic acid
  • EVA ethylene vinyl acetate
  • thermoplastic pavement markings or compositions are thermoplastic pavement markings or compositions.
  • the pavement marking compositions and pavement markings described herein have numerous advantages.
  • One exemplary advantage of the pavement markings described herein is that they have increased flexibility compared to existing pavement markings. This flexibility reduces the incidence of preformed pavement marking break during rolling, shipment, and/or application. Additionally, the improved flexibility makes application of these pavement markings easier. Increased flexibility can also reduce stress induced cracking on the road after application, which results in a longer- lasting pavement marking.
  • Another exemplary advantage is that at least some of the pavement markings are equally or more durable than existing pavement markings.
  • thinner pavement markings can be formed. Thinner pavement markers can cover the same area using less material, and are thus more cost-effective to manufacture and apply.
  • preformed pavement markers of traditional thickness can be made and, due to the increased durability, these will last longer, resulting in fewer lane closures due to pavement marking application.
  • Another exemplary advantage of the pavement markings described herein is that at least some of the pavement markings exhibit equal or improved surface energy and toughness, which results in pavement markings that do not retain or adhere dirt. Consequently, the daytime and/or nighttime visibility of the pavement markings may be improved.
  • thermoplastic pavement marking composition including greater than about 7 wt% ethylene vinyl acetate based on the total weight of the composition. In some embodiments, the thermoplastic pavement marking composition further includes less than about 80 wt% ethylene vinyl acetate based on the total weight of the composition. In some embodiments, the thermoplastic pavement marking composition includes ethylene vinyl acetate having a melt flow index of between about 10 g/ 10 min and about 800 g/ 10 min at 190°C. In some embodiments, the thermoplastic pavement marking composition includes ethylene vinyl acetate having a melt flow index of between about 150 g/ 10 min and about 800 g/ 10 min at 190°C.
  • the thermoplastic pavement marking composition further includes a resin selected from a group consisting essentially of rosin esters, hydrogenated rosin resins, dimerized rosin resins, modified rosin resins, hydrocarbon resins, C5 aliphatic resins, hydrogenated C5 aliphatic resins, C5 aromatic resins, C9 aromatic resins, pure monomer C9 aromatic resins, hydrogenated C9 aromatic resins, C5/C9 aliphatic / aromatic hydrocarbon resin,C10 resins, modified CIO resins, pure monomer resins, hydrogenated pure monomer resins, pure aromatic monomer resins, low molecular weight fully hydrogenated inert thermoplastic resin derived from petrochemical feedstocks, and combinations thereof.
  • a resin selected from a group consisting essentially of rosin esters, hydrogenated rosin resins, dimerized rosin resins, modified rosin resins, hydrocarbon resins, C5 aliphatic resins, hydrogenated C5 aliphatic resins, C5
  • the thermoplastic pavement marking has a ratio of ethylene vinyl acetate to resin is between about 80:20 to about 40:60. In some embodiments, the thermoplastic pavement marking has a ratio of ethylene vinyl acetate to resin is between about 3 : 1 to about 1.5: 1.
  • the thermoplastic pavement marking includes ethylene vinyl acetate has a vinyl acetate content of between about 18 wt% and about 28 wt%.
  • the thermoplastic pavement marking includes an adhesive adjacent to the thermoplastic pavement marking composition.
  • the adhesive is selected from a group consisting essentially of pressure sensitive adhesives, thermoplastic resin-containing compositions, hot melt adhesives, thermoset adhesives, contact adhesives, acrylic adhesives, epoxy adhesives, urethane adhesives, non-thermoplastic hydrocarbon elastomers, natural rubber, butyl rubber, synthetic
  • polyisoprene ethylene-propylene rubber, ethylene -propylene-diene monomer rubber (EPDM), polybutadiene, polyisobutylene, poly(alpha-olefm), styrene -butadiene random copolymer rubber, acrylate based pressure sensitive adhesive compositions, and combinations thereof.
  • EPDM ethylene -propylene-diene monomer rubber
  • polybutadiene polyisobutylene
  • poly(alpha-olefm) polystyrene -butadiene random copolymer rubber
  • acrylate based pressure sensitive adhesive compositions acrylate based pressure sensitive adhesive compositions, and combinations thereof.
  • the thermoplastic pavement marking composition includes greater than about 10 wt% ethylene vinyl acetate based on the total weight of the composition. In some embodiments, the thermoplastic pavement marking composition includes greater than about 15 wt% ethylene vinyl acetate based on the total weight of the composition. In some embodiments, the thermoplastic pavement marking composition includes greater than about 20 wt% ethylene vinyl acetate based on the total weight of the composition.
  • a pavement marker including the pavement marking composition of the type described herein.
  • the pavement marker is preformed.
  • the pavement marker has a contact angle of at least 64°.
  • the pavement marker has an energy at break of at least 0.1 ft*lbf / in 3 .
  • the pavement marker has a mandrel bend flexibility of 6 inches of diameter or less.
  • the pavement marker has a CAP-Y of greater than 80.
  • thermoplastic pavement marking compositions and pavement markings of the present disclosure include more than about 7 wt% EVA. In some embodiments, the thermoplastic pavement marking compositions and pavement markings include more than about 10 wt% EVA. In some embodiments, the thermoplastic pavement marking compositions and pavement markings include more than about 12 wt% EVA. In some embodiments, the thermoplastic pavement marking compositions and pavement markings include more than about 15 wt% EVA. In some embodiments, the thermoplastic pavement marking compositions and pavement markings include more than about 17 wt% EVA. In some embodiments, the thermoplastic pavement marking compositions and pavement markings include more than about 20 wt% EVA. In some embodiments, the thermoplastic pavement marking compositions and pavement markings include more than about 22 wt% EVA. In some embodiments, the thermoplastic pavement marking compositions and pavement markings include more than about 25 wt% EVA.
  • Exemplary thermoplastic pavement marking compositions and pavement markings of the present disclosure also include less than about 80 wt% EVA. Exemplary thermoplastic pavement marking compositions and pavement markings of the present disclosure also include less than about 70 wt% EVA. Exemplary thermoplastic pavement marking compositions and pavement markings of the present disclosure also include less than about 60 wt% EVA. Exemplary thermoplastic pavement marking compositions and pavement markings of the present disclosure also include less than about 50 wt% EVA. Exemplary thermoplastic pavement marking compositions and pavement markings of the present disclosure also include less than about 40 wt% EVA.
  • the EVA has a vinyl acetate content of between about 18 wt% and about 40 wt%. In some embodiments, the EVA has a vinyl acetate of between about 18 wt% and about 28 wt%.
  • Some exemplary commercially available EVA copolymers for inclusion in the composition or pavement markings of the present disclosure include, for example, ElvaxTM 150, Elvax 250, Elvax 260, Elvax 350, Elvax 410, Elvax 450, Elvax 550, AtevaTM 1241, Ateva 1615, Ateva 1641, Ateva 9020, Ateva 9030,
  • Some EVA copolymers capable of use in the compositions and pavement markings described and claimed herein have a melt flow index of between about 10 g/ 10 min and about 800 g/ 10 min at 190°C. In some embodiments, the EVA copolymers have a melt flow index of between about 150 g/ 10 min and about 800 g/ 10 min at 190°C. In some embodiments, the EVA copolymers have a melt flow index of between about 300 g/ 10 min and about 500 g/ 10 min at 190°C.
  • thermoplastic reinforcing polymers of the type generally described in, for example, U.S. Patent No. 4,490,432.
  • thermoplastic reinforcing polymers generally comprise from about 1 to about 25 wt% of the total composition. In some embodiments, the range is between about 1 wt% and about 5 wt%.
  • the pavement marking composition may optionally include up to about 75 wt% of other ingredients selected from reflective elements (e.g., glass beads), extender resins, fillers, and pigment.
  • reflective elements e.g., glass beads
  • extender resins e.g., polystyrene resins
  • fillers e.g., polystyrene resins
  • pigment e.g., polystyrene resins
  • the proportions can be varied within the stated ranges depending upon the amount of other ingredients included in the composition, especially the amount and kind of optional fillers.
  • compositions and pavement markings of the present disclosure may also include, for example, one or more resins (i.e., low molecular weight amorphous polymers).
  • Exemplary resins include those selected from a group consisting essentially of rosin esters, hydrogenated rosin resins, dimerized rosin resins, modified rosin resins, hydrocarbon resins, C5 aliphatic resins, hydrogenated C5 aliphatic resins, C5 aromatic resins, C9 aromatic resins, pure monomer C9 aromatic resins, hydrogenated C9 aromatic resins, C5/C9 aliphatic / aromatic hydrocarbon resin, CIO resins, modified CIO resins, pure monomer resins, hydrogenated pure monomer resins, pure aromatic monomer resins, low molecular weight fully hydrogenated inert thermoplastic resin derived from petrochemical feedstocks, and combinations thereof.
  • the EVA to resin ratio is between about 80:20 and about 40:60. In some embodiments, the EVA to resin ratio is between about 3: 1 and about 1.5: 1. In some embodiments, at least some of the resins are tackifiers. In some embodiments, retroreflective or reflective articles, transparent microspheres, and/or skid- resisting particles are included in the composition or are placed on top of or adjacent to the composition. In some embodiments, these increase visibility or signaling performance of the road marker. Methods of applying the retroreflective or reflective articles, transparent microspheres, and/or skid-resisting particles are disclosed in, for example, U.S. Patent No. 3,451,537, incorporated in its entirety herein.
  • Some embodiments include a stabilizing agent that assists in providing UV or heat resistance.
  • exemplary stabilizing agents include, for example, hindered amine light stabilizers (HALS), phosphonate heat stabilizers, benzophenones, and zinc compounds. Stabilizing agents may be present at levels up to about 5 wt%.
  • Some embodiments include a rheology control agent that assists in providing settling resistance. Exemplary rheology control agents include, for example, bentone and fumed silica.
  • Some embodiments include one or more plasticizers.
  • extender resins often halogenated polymers such as chlorinated paraffins, but also hydrocarbon resins or polystyrenes, are preferably included with the non-crosslinked elastomer precursor ingredients, and are miscible with, or form a single phase with, the elastomer precursor ingredients.
  • the non-cross-linked thermoplastic materials are admixed with the additional materials forming a relatively homogeneous mixture, wherein the non-crosslinked
  • thermoplastic materials are dispersed randomly three- dimensionally throughout the polymeric material.
  • a high shear mixer is suitable for this purpose.
  • the non-crosslinked thermoplastic materials may be deposited in a substantially planar orientation.
  • the composition is processed on calendering rolls where the composition forms a smooth band and is processed into sheets of the desired thickness.
  • Exemplary sheeting thickness is between about 1/4 millimeter and about 5 millimeters.
  • the sheets are at least about 1 millimeter. In some embodiments, the sheets are less than 3 millimeters thick.
  • the pavement markers of the present disclosure can be any desired color, including, for example, white or yellow.
  • the pavement markers can be colored in any way known in the art, including, for example, inclusion of one or more of T1O2, CaCC>3, crushed quartz, crushed glass, talc, iron oxide yellow, or yellow pigment 83.
  • the pavement markers of the present application can also include an ultramarine blue pigment that increases whiteness.
  • Retroreflective elements e.g., transparent microspheres, cube-corner particles derived from ground sheeting
  • skid-resisting particles e.g., sand particles
  • Retroreflective elements may be included in the compositions or pavement markings described and claimed herein. In some embodiments, these are included at a concentration of up to about 60 wt%. In some embodiments, they are included in a concentration of about 35 wt% to about 50 wt%. Retroreflective elements assist in providing reflectivity at night. For example, reflective glass beads may be dispersed on or throughout the thickness of the pavement marking sheet or composition. Skid-resisting particles provide skid-resisting qualities.
  • An exterior layer of such particles may be provided on the top of the sheet material, partially embedded in the sheet material and partially protruding from the sheet material, to provide immediate reflectivity and skid- resistance; and other particles may be embedded in the sheet material to become exposed as the sheet material is worn away.
  • the particles may be held in the partially protruding position by use of a support film adhered to the sheet material of the invention, for example, as taught in column 4 of U.S. Patent No. 4,988,541.
  • the pavement marking includes an adhesive composition or layer that is capable of bonding the sheet to a roadway surface.
  • adhesive refers to a composition capable of bonding the pavement marking to the roadway.
  • Some exemplary adhesive compositions include those selected from a group consisting essentially of pressure sensitive adhesives, thermoplastic resin-containing compositions, hot melt adhesives, thermoset adhesives, contact adhesives, acrylic adhesives, epoxy adhesives, urethane adhesives, and combinations thereof.
  • non-thermoplastic hydrocarbon elastomers including, natural rubber, butyl rubber, synthetic polyisoprene, ethylene -propylene rubber, ethylene-propylene- diene monomer rubber (EPDM), polybutadiene, polyisobutylene, poly(alpha-olefm), styrene-butadiene random copolymer rubber, acrylate based pressure sensitive adhesive compositions.
  • preformed pavement marking means a pavement marking that has been formed into the desired shape or configuration prior to installation. These can be applied directly to the pavement by heating or with an adhesive.
  • One benefit of using a preformed marking is that it requires less equipment and less material for small-area applications.
  • Another advantage is the ability to use smaller equipment which aids in the application of intersection markings and symbols where it is difficult to use hand-liners or truck applicators.
  • Desired surfaces for preformed pavement marking attachment include, for example, vehicle surfaces for driveways, parking lots, bicycle paths, golf course paths, decks, patios and generally any surface where there may be pedestrian, powered vehicle traffic or building structures.
  • Other examples of potential uses include crosswalks, custom logos, entryways, driveways, parks and horizontal signage, etc. Because these pavement markers are produced in a factory, and not on site, the pavement markers may have higher quality and improved visual appearance. Examples describing preformed markings are in US 8,247,054 B2 and US 6,270,871.
  • Typical roadway surfaces are rough (rather than smooth). As such, good adhesion of the pavement marking to the roadway surface is preferred.
  • the pavement markings of the present disclosure may adapt to and accommodate road surface irregularities.
  • the pavement markers and pavement marking composition of the present disclosure have various performance or physical attributes.
  • the pavement marking composition and/or pavement markers described herein have a contact angle of 64°.
  • the pavement markings of the present disclosure have a mandrel bend flexibility of 6 inches of diameter or less. In some embodiments, the pavement markings of the present disclosure have a CAP-Y of at least 80. In some embodiments, the pavement markings of the present disclosure have an energy at break of greater than 0.1 ft*lbf / in 3 . Each of these physical parameters are measured as described in the examples below.
  • Cap Y was measured using a colorimeter (model COLORFLEX obtained from Hunter Associates Laboratory, Reston, VA) using a D65 illuminant and 10 degree observer, following the procedure outlined in ASTM E313-10, "Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color differences".
  • Flexibility was tested according to the procedure outlined in ASTM D31 1 1 - 10, "Standard Test Method for Flexibility Determination of Hot-Melt Adhesives by Mandrel". Bend radius samples were tested on 6 in (15 cm), 2 in (5 cm), 1 in (2.5 cm), 3 ⁇ 4 in (1.9 cm), 1 ⁇ 2 in (1.27 cm), and 1 ⁇ 4 in (0.64 cm) in diameter mandrels. An asterisk (*) indicates that failure mode is break.
  • NUCREL 3990 Ethylene acrylic acid copolymer resin, 9.5% acrylic DuPont, Wilmington acid. Delaware
  • EAA Ethylene acrylic acid copolymer
  • EAA Ethylene acrylic acid copolymer
  • MEGA-LUX Glass spheres having a RI of 1.5 and average Swarco Industries TYPE diameter between 0.3 mm and 0.6 mm.
  • VECTOR 4411 A Styrene-Isoprene-Styrene (SIS) Block Copolymer Dexco Polymers,
  • thermoplastic adhesive bonding film 3M Company, St. Paul, FILM 615 MN Examples
  • Examples 1 and 2 are dual-layer thermoplastic pavement markings, and Examples A-H are single-layer pavement markings according to the present disclosure.
  • a dual-layer thermoplastic pavement marking was prepared by simultaneously extruding a thermoplastic pavement marking composition and an adhesive layer through a die.
  • the pavement marking composition was obtained by mixing the materials listed in Table 1, below in a 50mm twin screw extruder (model MPC/V - 50, obtained from Baker Perkins, from Saginaw, Michigan) set to a temperature of about 300-350°C, coupled to a 12-inch wide dual layer die.
  • An adhesive layer was prepared by melting a thermoplastic adhesive bonding film as described below.
  • the die had a 100 mil (2.54 mm) shim for the pavement marking composition and an 8 mil (0.2 mm) shim for the adhesive layer.
  • the amount of materials listed in Table 1 is expressed as weight percent (wt%) based on the total weight of the composition.
  • the UL 7510 and ESCOREZ5400 were obtained in pellets and premixed, forming a polymer premix.
  • the T1O2 and CaCCb were obtained in powder form and also separately premixed to form a powder premix. All materials were then fed with twin screw feeders, with the polymer and powder premixes being fed into the first port and mixed and the glass beads being fed into the second port (after which the material was conveyed without forced mixing)
  • the feed rate for the polymer premix was 16.2 lb/hr
  • the feed rate for the powder premix was 19.81b/hr
  • the feed rate for the beads was 12 lb/hr each.
  • the belt speed of the extruder was 1.5 fpm, and the screw speed was 200 rpm.
  • the belt was covered with a 12 in wide 3 mil release coated paper liner and carried away the material at 1.5 fpm.
  • the actual extrudate width was approximately 1 1.25 in.
  • 3M Bonding Film 615 was delivered by a gridmelter targeted at 6 lb/hr.
  • the resulting adhesive layer was approximately 8 mil thick in the center and about 10-14 mils thick toward the edges.
  • the resulting dual-layer thermoplastic pavement marking was tested for: contact angle, flexibility, CAP Y and, using the procedures described above. Results are reported in Table 5, below.
  • a dual-layer thermoplastic pavement marking composition was prepared as described in Example 1.
  • thermoplastic pavement marking composition Materials for the thermoplastic pavement marking composition are shown in Table 2, below, expressed as weight percent (wt%) based on the total weight of the composition.
  • a hot-melt adhesive was prepared by extruding a mixture of 45 wt% of VECTOR 441 1 A (SIS block copolymer) and 55 wt% of WEST REZ 5101P (rosin ester tackifier), wherein the weight percentages are based on the total weight of the adhesive composition.
  • the hot melt was extruded with a 30mm diameter MP 2030TC extruder (from APV, Saginaw, Michigan) at temperatures between 200- 325°F This mixture was fed into the die to form the co-extruded adhesive layer.
  • the VECTOR 441 1 A was fed into the first port at 2.7 lb/hr using a twin screw feeder, while the hot melt was fed at 3.3 lb/hr into later ports using a gridmelter.
  • the resulting dual-layer thermoplastic pavement marking was subjected to the following test methods: surface contact angle, flexibility, CAP Y and flexibility, using the procedures described above. Results are reported in Table 5, below.
  • Examples A - H were subjected to the following test methods: surface contact angle, flexibility, CAP Y and flexibility using the procedures described above. Results are reported in Table 5, below. Results
  • Thermoplastic pavement markings prepared as described in Examples A-H, and Examples 1 and 2 were tested for: contact angle, energy at break, flexibility and CAP Y, using the procedures described above. Results are reported in Table 5, below, wherein bend radius samples were tested on 6, 2, 1, 3/4, 1 ⁇ 2, and 1 ⁇ 4 in diameter mandrels. An asterisk (*) indicates that failure mode is break.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Road Signs Or Road Markings (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention porte d'une manière générale à des marquages de chaussée thermoplastique pour marquage de chaussée thermoplastique et des compositions qui comprennent plus d'environ 7 % en poids de l'EVA.
PCT/US2015/016016 2014-02-17 2015-02-16 Marquages de chaussée thermoplastique durable WO2015123625A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461940646P 2014-02-17 2014-02-17
US61/940,646 2014-02-17

Publications (1)

Publication Number Publication Date
WO2015123625A1 true WO2015123625A1 (fr) 2015-08-20

Family

ID=53800689

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/016016 WO2015123625A1 (fr) 2014-02-17 2015-02-16 Marquages de chaussée thermoplastique durable

Country Status (1)

Country Link
WO (1) WO2015123625A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110997818A (zh) * 2017-08-16 2020-04-10 科腾聚合物有限责任公司 粒状道路标记粘结剂及相关方法
US10889947B2 (en) 2015-06-18 2021-01-12 3M Innovative Properties Company Thermoplastic pavement marking tapes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613632A (en) * 1981-10-16 1986-09-23 Exxon Research & Engineering Co. Ethylene copolymers for hot melt systems
US5536569A (en) * 1990-12-24 1996-07-16 Minnesota Mining And Manufacturing Company Thermoplastic marking sheet
US20120141785A1 (en) * 2008-01-11 2012-06-07 Hugh Winters Lowrey Process for application of durable fast drying multi-coat organic coating system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613632A (en) * 1981-10-16 1986-09-23 Exxon Research & Engineering Co. Ethylene copolymers for hot melt systems
US5536569A (en) * 1990-12-24 1996-07-16 Minnesota Mining And Manufacturing Company Thermoplastic marking sheet
US20120141785A1 (en) * 2008-01-11 2012-06-07 Hugh Winters Lowrey Process for application of durable fast drying multi-coat organic coating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10889947B2 (en) 2015-06-18 2021-01-12 3M Innovative Properties Company Thermoplastic pavement marking tapes
CN110997818A (zh) * 2017-08-16 2020-04-10 科腾聚合物有限责任公司 粒状道路标记粘结剂及相关方法

Similar Documents

Publication Publication Date Title
US11326061B2 (en) High content polyamide hot-applied thermoplastic composition
EP3310966B1 (fr) Bandes de marquage de chaussée thermoplastique
CA2781855C (fr) Marquage de chaussee thermoplastique preformee et procede utilisant un agregat de taille importante pour une resistance au glissement perfectionnee a long terme et une formation d'ornieres reduite
US9951486B2 (en) Durable debris and alkaline resistant preformed thermoplastic runway pavement marking compositions
EP1270820A2 (fr) Marquage de surfaces de routes
US20150140294A1 (en) Preformed Thermoplastic Pavement Marking and Method for High Skid Resistance with Maintained High Retroreflectivity
WO2015123625A1 (fr) Marquages de chaussée thermoplastique durable
US5374465A (en) Economical roadway marking sheeting matrix
US20220170218A1 (en) Thermoplastic pavement marking tapes
US10106688B2 (en) Crack-resistant thermoplastic road marking
CA2963559A1 (fr) Marquage de chaussee thermoplastique preformee et procede pour resistance elevee au derapage avec retroreflectivite elevee maintenue
EP3307823B1 (fr) Compositions durables de marquage de revêtement de piste, thermoplastiques, préformées, résistant aux débris et aux agents alcalins
KR101923028B1 (ko) 용융형 도로 표시용 조성물 및 이의 시공 방법
KR200383835Y1 (ko) 중앙 및 도로 차선용 테이프

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15749140

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15749140

Country of ref document: EP

Kind code of ref document: A1