GB2113234A - Method of marking a trafficway surface - Google Patents
Method of marking a trafficway surface Download PDFInfo
- Publication number
- GB2113234A GB2113234A GB08301040A GB8301040A GB2113234A GB 2113234 A GB2113234 A GB 2113234A GB 08301040 A GB08301040 A GB 08301040A GB 8301040 A GB8301040 A GB 8301040A GB 2113234 A GB2113234 A GB 2113234A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyol
- polyurethane
- isocyanate
- linking agent
- cross
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 27
- 229920002635 polyurethane Polymers 0.000 claims abstract description 24
- 239000004814 polyurethane Substances 0.000 claims abstract description 24
- 229920005862 polyol Polymers 0.000 claims abstract description 19
- 150000003077 polyols Chemical class 0.000 claims abstract description 19
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 9
- 150000001412 amines Chemical class 0.000 claims abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000012948 isocyanate Substances 0.000 claims description 16
- 150000002513 isocyanates Chemical class 0.000 claims description 16
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 3
- ROXSUKUCXOVPOB-UHFFFAOYSA-N ethene;toluene Chemical compound C=C.C=C.CC1=CC=CC=C1 ROXSUKUCXOVPOB-UHFFFAOYSA-N 0.000 claims description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- -1 amino compound Chemical class 0.000 claims description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 2
- JQZRVMZHTADUSY-UHFFFAOYSA-L di(octanoyloxy)tin Chemical group [Sn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O JQZRVMZHTADUSY-UHFFFAOYSA-L 0.000 claims description 2
- 150000002009 diols Chemical class 0.000 claims description 2
- 125000002524 organometallic group Chemical group 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920005628 alkoxylated polyol Polymers 0.000 abstract 1
- 239000000376 reactant Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- PGYPOBZJRVSMDS-UHFFFAOYSA-N loperamide hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(C=1C=CC=CC=1)(C(=O)N(C)C)CCN(CC1)CCC1(O)C1=CC=C(Cl)C=C1 PGYPOBZJRVSMDS-UHFFFAOYSA-N 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000012973 diazabicyclooctane Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/16—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings
- E01C23/20—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ
- E01C23/22—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ by spraying
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A trafficway surface (e.g. road, taxiway) is marked by applying a polyurethane thereto. The polyurethane may be produced by impingement mixing of two or more polyurethane forming components. One component may be MDI or MDI modified with a glycol or amine and the other component may be a polyol or an alkoxylated polyol. A hydroxy or amine cross-linking agent may be incorporated in one of the components as may a catalyst.
Description
SPECIFICATION
Method of marking a trafficway surface
This invention relates to a method of marking a trafficway surface.
The term trafficway surface as used herein covers any area on which traffic may move as well as regions adjacent such areas. The term trafficway surface thus covers areas such as car parks, pavements etc. It should also be understood that the term 'traffic' covers, in addition to cars, lorries and buses, other types of vehicle which move along the ground. Thus the term 'trafficway surface' covers, in addition to roads, areas such as aircraft taxiways, runways etc.
The application of markings to a trafficway surface is of course well known. Such markings take the form of, for example, la-ne markings, hazard warning lines, "no parking" restrictions, parking bays for vehicles etc.
Hitherto, the compositions used for marking trafficway surfaces by spray application have required two vehicles for providing the marking on the traffic-way. This obviously represents a considerable expense both in capital outlay and the labour involved in applying the marking.
It is an object of this invention to obviate or mitigate the abovementioned disadvantages.
According to the present invention there is provided a method of marking a trafficway surface wherein the marking comprises a polyurethane.
Preferably the polyurethane is sprayed onto the highway surface, e.g. from a spray unit provided on a vehicle which travels along the trafficway applying the marking as required.
Preferably the polyurehane is produced by mixing together immediately prior to spraying two or more components which react together preferably practically instantaneously, to give the desired polyurethane. The polyurethane may be produced by impingement mixing of the polyurethane forming components in a suitable mixing chamber from which mixing chamber the product is immediately sprayed. In this case, the reactants are oniy mixed together during the time that a marking is being laid down.
The reactants to be mixed together to produce the polyurethane may comprises a di- or higher functionality isocyanate and a polyol.
The isocyanate may be any isocyanate normally used for polyurethane production but it is preferred to use diphenyl methane diisocyanate (MDI) or an isocyanate based thereon. Thus MDI may be used in any one of its various forms, e.g.
pure, polymeric or a variant formed by reaction of
MDI with a polylol or amine.
The preferred isocyanate is a glycol modified
MDI such as available from Imperical Chemical
Industries plc. under the Registered Trade Mark
Suprasec VM30.
Solid isocyanates should be dissolved in a suitable solvent to permit the mixing stage to be effected.
The polyol may be, for example, a diol or triol and may be alkoxylated to form, for example, ethylene oxide or propylene oxide based polyether derivatives. Most preferably the polyol is, or is based on, high molecular weight triols with a hydroxyl value of 25 to 60.
The preferred polyol is an ethylene oxide tipped triol.
Preferably also a cross-linking agent is used in addition to the polyol and the isocyanate. For preference the cross-linking agent, when used, is a hydroxy or amino compound. The cross-linking compound preferably has a functionality of 2 to 4 and a hydroxyi value of 300 to 2,000. Examples of suitable cross-linking agents include triethanolamine, ethylene glycol, glycerol, butane diol, alkoxylated ethylene diamine, and diethylene toluene diamine.
Normally a catalyst is added to one component of the polyurethane forming system (i.e. polyol or isocyanate). These may be conventional organometallic or amine catalysts, for example stannous octanoate, dibutyl tin dilaurate, dimethyl cyclohexylamine or DABCO. The catalyst may be used in conventional amounts.
Other conventional polyurethane additives, e.g.
silicone surfactants, fire retardants etc., may be incorporated in one or other of the components to be reacted together.
Additionally, a blowing agent (e.g. fluorocarbon (11) or water) may be included to produce a low degree of foaming to give the final polyurethane composition a degree of resilience.
Pigments as required may be dispersed in one of the reactants, preferably the polyol, before mixing is effected.
When a pigment is used, it is preferably
incorporated in an amount of 2 to 10% by weight of the polyurehane. Exampies of pigments are titanium dioxide (white) and lead chromate
(yeilow).
Conventional components such as reflective materials (e.g. glass beads) and anti-skid materials e.g. calcined flint) may be applied to the polyurethane marking as soon as it has been applied to the trafficway.
The apparatus for producing and applying the
polyurethane may comprise a spray gun in which the reactants for producing the desired
polyurethane are mixed and then immediately
sprayed onto the surface to be marked. The
reactants are supplied separately to the gun by
means of, for example, respective double-acting
proportioning pumps each of which deliver one
of the ingredients to the gun in the correct ratio
relative to the or each other ingredient.
The apparatus is preferably such that, when
the gun is closed (i.e. the reactants are not being
mixed and no product is being ejected) the pumps
'stall' so that they no longer pump the respective
reactants to the gun. However, as soon as the gun
is opened, mixing immediately recommences.
Heaters may be installed between each
proportioning pump and the gun to ensure that
each reactant is at the correct viscosity for supply
to, and mixing in, the gun.
The gun may be of the type having a mixing chamber with ports for the supply to the chamber of each reactant such that the reactants impinge upon each other when admitted to the chamber.
Such a gun may include a cylindrical mixing chamber (into which the ports open) and a valving rod slidable to open and close the ports when the gun is in an operating or shut-down condition respectively. The chamber may also have an outlet adapted to produce a sprayed pattern of desired configuration, e.g. a line of a particular width. The valving rod should make positive contact with the inside surface of the chamber and of the outlet such that, when the gun is shutoff by moving the rod to close the ports, residual mixed material is purged from the chamber and the outlet since such residual material may inpair a subsequent mixing operation or cause deformation of the pattern of the polyurethane being sprayed.
Suitable apparatus for effecting the mixing and spraying is the H-ll Proportioner and gun available from Gusmer Corporation of New Jersey, U.S.A.
In one specific example of the invention the above-described apparatus may be used to produce a road marking from Suprasec VM20 (isocyanate) and pigment containing polyol composition comprising an ethylene oxide tipped triol containing diethylene toluene diamine.
Dibutyl tin dilaurate is used as catalyst.
The polyol composition and isocyanate are supplied to the mixing chamber by their respective proportioning pumps in a volume ratio of polyol composition:isocyanate of 4:1.
The advantages of the present invention are that only one vehicle is required to apply the marking, as compared to two vehicles for conventional spray applied thermoplastic road - marking compositions, and also that the polyurethane retains its flexibility and cohesive strength under a wide range of temperature conditions which allows the composition to be used in widely differing climates.
Claims (23)
1. A method of marking a trafficway surface wherein the marking comprises a polyurethane.
2. A method as claimed in claim 1 wherein the polyurethane is applied by spraying.
3. A method as claimed in claim 2 wherein the polyurethane is produced by mixing immediately prior to spraying at least two components which react together to produce a polyurethane.
4. A method as claimed in claim 3 wherein said mixing is effected by impingement of said components.
5. A method as claimed in any one of claims 1 to 4 wherein the polyurethane is produced from a polyfunctional isocyanate and a polyol.
6. A method as claimed in claim 5 wherein the isocyanate is, or is based on, diphenyl methane diisocyanate (MDI).
7. A method as claimed in claim 6 wherein the isocyanate is MDI modified by reaction with a polyol or amine.
8. A method as claimed in claim 7 wherein the isocyanate is a glycol modified MDI.
9. A method as claimed in any one of claims 5 to 8 wherein the polyol is a diol or triol.
10. A method as claimed in claim 9 wherein the polyol is a triol with a hydroxyl number of 25 to 60.
11. A method as claimed in any one of claims 5 to 10 wherein the polyol is alkoxylated.
12. A method as claimed in claim 11 wherein the polyol is an ethylene oxide or propylene oxide based polyether derivative.
13. A method as claimed in claim 12 wherein the polyol is an ethylene oxide tipped triol.
14. A method as claimed in any one of claims 5 to 13 wherein a cross-linking agent is used in addition to the polyol and isocyanate.
1 5. A method as claimed in claim 14 wherein the cross-linking agent is a hydroxy or amino compound.
16. A method as claimed in claim 14 wherein the cross-linking agent has a hydroxyl number of 300 to 2,000.
17. A method as claimed in any one of claims 14 to 1 6 wherein the cross-linking agent has a functionality of 2 to 4.
18. A method as claimed in claim 14 wherein the cross-linking agent is selected from triethanolamine, ethylene glycol, glycerol, butane diol, alkoxylated ethylene diamine and diethylene toluene diamine.
19. A method as claimed in any one of claims 5 to 1 8 wherein a catalyst is included in one component of the poiyurethane forming system.
20. A method as claimed in claim 19 wherein the catalyst is an organometallic or amine catalyst.
21. A method as claimed in claim 20 wherein the catalyst is selected from stannous octanoate, dibutyl tin dilaurate and dimethyl cyclohexylamine.
22. A method as claimed in any one of claims 5 to 21 wherein a pigment is included in one component of the polyurethane forming system.
23. A method of marking a trafficway surface substantially as hereinbefore described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08301040A GB2113234A (en) | 1982-01-14 | 1983-01-14 | Method of marking a trafficway surface |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8201009 | 1982-01-14 | ||
| GB08301040A GB2113234A (en) | 1982-01-14 | 1983-01-14 | Method of marking a trafficway surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8301040D0 GB8301040D0 (en) | 1983-02-16 |
| GB2113234A true GB2113234A (en) | 1983-08-03 |
Family
ID=26281712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08301040A Withdrawn GB2113234A (en) | 1982-01-14 | 1983-01-14 | Method of marking a trafficway surface |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2113234A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4752502A (en) * | 1985-12-27 | 1988-06-21 | Hercules Incorporated | Nitrocellulose-urethane traffic paint |
| WO1998001237A1 (en) * | 1996-07-08 | 1998-01-15 | The Dow Chemical Company | Method of applying a road marking composition |
| WO1998056842A1 (en) * | 1997-06-13 | 1998-12-17 | Minnesota Mining And Manufacturing Company | Liquid pavement marking compositions |
| ES2288128A1 (en) * | 2006-06-07 | 2007-12-16 | Igcristalba, S.L. | Signaling bands for ground, has a compound, which is formed by certain percentage of polyol of ramified polyester, polyisocyanate of methylene diphenyl diisocyanate, fluorinated compound, microspheres of glass and silica |
| USRE40088E1 (en) | 1997-06-13 | 2008-02-19 | 3M Innovative Properties Company | Liquid pavement marking compositions |
| US7342056B2 (en) | 2004-06-17 | 2008-03-11 | 3M Innovative Properties Company | Pavement marking comprising modified isocyanate |
| US9207373B2 (en) | 2007-04-10 | 2015-12-08 | Stoncor Group, Inc. | Methods for fabrication and highway marking usage of agglomerated retroreflective beads |
-
1983
- 1983-01-14 GB GB08301040A patent/GB2113234A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4752502A (en) * | 1985-12-27 | 1988-06-21 | Hercules Incorporated | Nitrocellulose-urethane traffic paint |
| WO1998001237A1 (en) * | 1996-07-08 | 1998-01-15 | The Dow Chemical Company | Method of applying a road marking composition |
| WO1998056842A1 (en) * | 1997-06-13 | 1998-12-17 | Minnesota Mining And Manufacturing Company | Liquid pavement marking compositions |
| US6451874B1 (en) | 1997-06-13 | 2002-09-17 | 3M Innovative Properties Company | Liquid pavement marking compositions |
| US6790880B2 (en) | 1997-06-13 | 2004-09-14 | 3M Innovative Properties Company | Liquid pavement marking compositions |
| USRE40088E1 (en) | 1997-06-13 | 2008-02-19 | 3M Innovative Properties Company | Liquid pavement marking compositions |
| USRE40729E1 (en) * | 1997-06-13 | 2009-06-09 | 3M Innovative Properties Company | Liquid pavement marking compositions |
| US7342056B2 (en) | 2004-06-17 | 2008-03-11 | 3M Innovative Properties Company | Pavement marking comprising modified isocyanate |
| ES2288128A1 (en) * | 2006-06-07 | 2007-12-16 | Igcristalba, S.L. | Signaling bands for ground, has a compound, which is formed by certain percentage of polyol of ramified polyester, polyisocyanate of methylene diphenyl diisocyanate, fluorinated compound, microspheres of glass and silica |
| US9207373B2 (en) | 2007-04-10 | 2015-12-08 | Stoncor Group, Inc. | Methods for fabrication and highway marking usage of agglomerated retroreflective beads |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8301040D0 (en) | 1983-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |