CN1044837A - Surface marker band and be used for improving its globality and fusible method to the surface of highway and similar structures - Google Patents

Abstract

A kind of improved class rubber strip that supplies highway sign to use, upper strata wherein is deformed into the jut of wedge and ridge one class, and preferably be provided with the microballoon covering layer of the retroreflection of exposure, this upper strata is cross-linking vulcanized and have memory capability, can when the vehicle ' excessive rolling, recover its original shape, this band still has the bottom that do not vulcanize of tool cold flow characteristic, be used for being attached on the highway and when vehicle crosses imitative with road pavement form memoryless ability.

Description

Surface marker band and be used for improving its globality and fusible method to the surface of highway and similar structures

The present invention relates to as highway, paving and other lip-deep colored belt, more particularly, is at the better highway cohesive and the method for long-life property are provided for this colored belt; The present invention relates to such colored belt or designation strip simultaneously, they have the preform spine that is adhered on highway and the similar structures, improved widely its globality and life-span simultaneously, and reflection and/or retroreflection by this spine, can improve visibility again, during in particular for the head lamp illumination of the vehicle of convergence.

In the prior art, the matter of utmost importance of preformed plastics paving colored belt is under the regular heavy load of automobile dealing, can provide road pavement that satisfied bond properties is arranged.Unless this paving colored belt has the elastomeric material deformation layer that lacks memory capability between this colored belt and road surface, not so, good cohesive usually is inaccessible.Rapid distortion in the necessary memoryless ground of this deformable layer and cold flow are to the irregular surface profile in paving.Above-mentioned deformability and cold flow ability allow to absorb the energy that tire impacts, and not so, when this impact energy spreads, will move the paving colored belt significantly.When adopting elastomeric material, just very weak to the cohesive on its road surface when the road humidity, this is because the stretching of this kind memory material-effect returned causes taking place a kind of pump and takes out effect, forces the dust of band water to enter between this kind material and road surface.Dust is deposited between jointing material and the road surface then, has destroyed at last this paving colored belt is remained to bond property on the road surface.

Though in some application facet, the United States Patent (USP) 3920346 that the inventor is early stage, 4040760,4069787, this class adhering technique that is used for colored belt for 4236788 and No. 4681401 relates to a kind of dense thick bonding adhesive, and above-mentioned deformability and cold flow characteristic provided a kind of measure, but for using widely and under the environment of the traffic of harshness and variations in temperature, this type of technology has proved it only is a kind of mean method at the most.In addition, the adhesive bonding method of this bonding adhesive has proved and has been difficult to using on the relevant object under the mode of economy.Under long sweltering heat in summer, this adhesive regular meeting when heating up flows immediately, and the result makes the paving colored belt that wriggling take place under heavy traffic loading or moves.But under extremely low winter temperature, can reduce the engaging force between this adhesive and the paving colored belt again sometimes, cause catastrophic results for being disposed by snowplow.

Preformed plastics paving colored belt is fixed to problem on the road surface suitably, in United States Patent (USP) 3399607,3587415 and No. 4117192 and other patent, has recognized that and obtain the solution of part.In the technology that these patents proposed, relate to such basic material, they demonstrate required deformability feature and lack memory or cold flow ability, and the compliance of road pavement can be provided, and the vibrational energy will absorb vehicle transport the time.Although this technology can be used for the paving colored belt of preformed plane surface,, then can not solve foregoing problems rightly for disclosed the sort of band in the early stage patent of the invention described above people with preform spine.This is because this material in the prior art does not have memory capability and demonstrates the cold flow characteristic, thereby any jut on respective surfaces, for example ridged or wedge-like portion, under the impact of vehicle contact, will rapidly disappear, and make spine under the pressure of tire, flatten and lose its original shape.Like this with regard to corollary failure this jut or spine the effect of high-visibility is arranged under low visual angle.If this kind spine is by hard and than the material of rigidity, for example constitute by polyvinyl chloride or epoxy resin or some other rigidity or semi-rigid material, then under the pressure of laterally operation, because the memoryless cold flow characteristic of this class basic material, very fast quilt is swallowed up disappearance.This spine will can not appear suddenly on the rainwater film once be pressed in the basic material again, thereby for the visual range at moist night, does not have purposes as the spine of high-visibility.

In United States Patent (USP) 4388359 is comprehensively arranged in content No. 4490432 patents, once attempted fortifying fibre sneaked in this memoryless cold flow flexible foundation material and solved the problems referred to above.Once wished that this fiber can provide enough toughness, overcame the above-mentioned problem that under the impact of high power capacity vehicle contact, loses ledge.But do not prove that this is a kind of complete successful method, and in fact protuberance is flattened and enter in the basic material, make it to lose its function and serviceability.

On the other hand, the present invention finds, unvulcanized two kinds of rubber laminations with sulfuration are made up in flakes, can make superior solution to the problems referred to above effectively.Do not vulcanize the compliance of elastic rubber layer and the characteristics of absorbing vibration energy, when combining, just can obtain the novel result that will point out here as the colored belt top that wherein constitutes spine.After the top layer sulfuration that contains spine, this spine just can stretches or flattens under the vehicle contact, or depresses or be out of shape, but owing to their memory characteristic, after vehicle stops to come and go, just can be returned to its original shape.Although this elastic property that comprises the sulfuration top of spine's structure, make it to have the memory capability that is enough to reply original shape, but can not be fully can adaptive road pavement form the deformability of soft elastic bottom, the latter on the contrary can absorb the impact energy of wheel in the vehicle contact rapidly.

For this reason, one of purpose of the present invention provides and is used for highway and similar structures a kind of novel and the colored belt that has improved, it is not subjected to the influence of shortcoming in the aforementioned existing design, and pass through stacked system, made up a kind of unvulcanized category rubber surface layer down that can be adhered to profiling on the highway, and the last category rubber surface layer that contains the sulfuration of colored belt, just can in use maintain the complete shape of lasting adhesive power and spine.

Other purpose of the present invention and more further purpose will illustrate in the back, and will more properly be characterized in the appended claim book.

In a word, as an important component part of the present invention, it is embodied in a kind of highway sign band, can be adhered on this highway along its basal surface, this colored belt comprises the sheet shaped piece of a kind rubber, its bottom and basal surface have the cold flow characteristic, its upper strata then can be deformed into some continuous mutually protuberances with upper surface, for example spine and wedge portion, just can point out the direction of highway for the reflection of this kind protuberance or retroreflection face from the incident light of exercising vehicle along highway, above-mentioned upper layer is cross-linking vulcanized, can make because of wheel passes through the recovery of depressing that causes protuberance on it, and this band can copy the shape of highway thereon bonding simultaneously.Provide embodiment details desirable and best mode below.

The present invention will illustrate with reference to the accompanying drawings,

Fig. 1 is the sectional drawing of individual layer sheet rubber before processing protuberance or spine;

Fig. 2 is the sectional drawing of individual layer sheet rubber after processing protuberance or spine;

Fig. 3 is the sectional drawing of double-layer rubber sheet before processing protuberance or spine;

Fig. 4 is the sectional drawing of double-layer rubber sheet after processing protuberance or spine;

Fig. 5 and 6 is and Fig. 2 and 4 similar sectional drawings that this moment, protuberance formed already, expressed the distribution of glass microballoon on the road surface of retroreflection simultaneously.

Referring to accompanying drawing, colored belt 1 shown in it includes the mixture of the half finished rubber of sheet form, because it is soft and demonstrates the cold flow characteristic, thereby lacks memory capability and yielding, it comprises by the rubber polymer of acrylonitrile-butadiene under sulfided state not and so on.Except that fortifying fibre, also comprise pigment and other treatment additive.A kind of example of allusion quotation shape prescription is listed in the table I, and fortifying fibre wherein is given as the cellulosic fiber of wood pulp matter.Can adopt other types of fibers that comprises the thermoplastic fortifying fibre, and the deformable characteristic of the aforementioned sheet shaped piece of not serious reduction.According to the present invention, the bottom of above-mentioned material or bottom then are retained under the state of memoryless ability of the sort of unvulcanized cold flow, and along its bottom surface with adhesive 6(Fig. 5 and 6) be attached on the highway R.This top that comprises the sheet rubber material of colored belt then makes it to have memory characteristic by sulfuration.For this purpose, the peroxide material of for example available shallow-layer of above-mentioned top layer is handled, and the degree of depth that this sheet rubber to one of latter's porous is limited is shown in the speckle district in Fig. 1 and 2.Owing to adopted peroxide treatment or suitable with it processing, this zone of this sheet rubber can be by heating crosslinkedization or sulfuration immediately.Before heating, it then has the identical character of sheet shaped piece remainder therewith, promptly soft, yielding and shortage memory capability.As shown in Figure 2, wherein, the sheet shaped piece of Fig. 1 had processed the wedge or the ridge 3 of projection already in its top surface, heating immediately afterwards, make by pretreated band crestal culmination crosslinkedization of layer or the sulfuration of peroxide and increase hard, give this spine with nonvolatil memory capability, and make it to press sunken back to borrow cold flow to keep its shape at vehicle, the bottom of sheet shaped piece 1 remains not sulfided state (noncrosslinking) simultaneously, thereby can be out of shape and memoryless ability, absorb and also have the profiling ability for vehicle contact being carried out necessary shock energy, colored belt is fixed to cohesive on the R of road surface to strengthen.Outstanding ridge or wedge 3 desirable parallel shapes along horizontal expansion, they are along continuous mutually in the vertical the separating of colored belt, if desired, also sectional constitutes ridge or voussoir, preferably make it to have trapezoidal cross section, so that preceding and rear surface inclination or near vertical " 1 " to be provided, be able to be used for reflecting the head lamp illumination light of low angle incident as preceding drawing as described in the patent.

Fig. 3 and 4 shows the another kind of method that reaches same effect.Sheet rubber basic material wherein comprises the laminated piece of double-layer structure, is vulcanizable upper layer 2 is added on the rubber layer 1 that can not vulcanize.Basic identical with layer 1 of layer 2 ingredient, but be added with vulcanizing agent, as sulphur (table II) or other compound, they are at jut 3(Fig. 4) form already after, react with rubber and to make it to finish crosslinkedization or sulfuration.In case after the sulfuration, this jut or ridge just can keep its shape, this is because sulfidation makes this material that memory capability and certain case hardness arranged.

In Fig. 5, entirely covered the adhesive layer 4 of retroreflection microballon on the former protruding top surface in Fig. 4.This kind layer can be made up of any microballon material that is fit to be used for boning, the for example copolymer of vinyl acetic acid esters, polyurethanes, epoxy resin, or any glass microballoon with retroreflection that other can be satisfied with adheres to the material on the aforementioned structure, and they solidify in the upper layer solidification process of band.The adhesive layer 4 of microballon can be applied on the aspect of top processing spine or being formed with before or after the spine with other method, and glass microballoon covering layer 5 then is applied on this layer before layer 4 solidifies.After ridged top layer sulfuration, these microballons then are fixed thereon in the mode that is partially submerged into, and in the microballon that these parts expose, and comprise that those particularly are in towards the inclination of the spine of vehicle or are bordering on vertical forward and backward surperficial 1 " on microballon.

Shown in the sectional drawing among Fig. 6, glass microballoon 7 is the crosslinked tops that are embedded in the sheet rubber of Fig. 2, this embed operation can be before processing jut or among finish.This kind glass microballoon 7 just partly is embedded on the face of the near vertical of ridge 3 or inclination, and those show that typically bright microballon at Fig. 8 place then is embedded into fully in the process that forms spine.In order to improve these microballons to adhering to the cohesive of object, have found that, be added to silane in the basic material or as the coating on the microballon, or use this two aspects, all be helpful.Adhesive layer 6 shown in Fig. 5 and 6 is used for colored belt is adhered on the R of road surface, and will influence the profiling characteristic of this band as small as possible, and guarantees its road pavement excellent bonds.

Colored belt of the present invention can form according to following fabrication method, and the method can keep ridged, and the profiling that can also give road pavement is bonded on the road surface securely to keep colored belt.

Example 1

After composition below listing in the table I mixes, with laboratory scale roll and calender form about 0.050 inch thick, 4 inches wide, several inches long sheet shaped pieces, spread on the surface of sheet shaped piece with the liquid level of a brushing pipe then, and the peroxide that forms is here made limited penetration to this surface methyl alcohol and TBPB tertiary butyl perbenzoate.With hot air after dry 30 seconds, allow this sheet shaped piece by mip rolls and have between the rotating cylinder of swelling structure, and a carinate configuration 3 is pressed in the upper surface of this sheet shaped piece.The sheet shaped piece that then this has been had a relief portion is in 350 heating three minutes down, during this period in, containing the upper layer I of the sheet rubber of above-mentioned peroxide ' (Fig. 2) just becomes crosslinked.The case hardness that gets with the hardness measurement instrumentation is 65～70, and only is 40 before not with peroxide treatment.

The relief band that will contain above-mentioned rigid structures then places under the metal plate, sails with the wheel of 1.5 tons of buggies and stops being with last 10 minute to this, presses down the spine of this band.Check the result of this sample to show, this spine has crimped onto 10% of its normal height.Through 10 minute stand-by period, the spine that observes this band recovered fully, and reverts to its original shape.Under the condition of impermeable peroxide, done the experiment of all fours, after handling the short time in 15 seconds under the load at above-mentioned wheel, but can not restore all the time.

When on this kind is with, crossing, seen equally from pressing down the back and replied the similar situation of original-shape with the vehicle of reality.

The table I

The material weight share

The non-friendship of butadiene propylene

Connection elastic material (" Hgcar 1022 " type, 100

The supply of B.F.Goodrich company)

Chloralkane (" Chlorowax 70-S "

Type, Diamond Shamrock company 70

Supply

Chloralkane (" Chlorowax 70-S type) 5

The wood pulp matter cellulose fibre that strengthens ¹120

Pigment ²130

Glass microballoon (average diameter 0.003 English

Very little, refractive index 1.5) 200

Silica filler (" Hgsil233 " type, 20

The supply of U.S. flat glass industry company)

1. " Interfib ", the supply of Sullivan chemistry

Titanium dioxide (" Tronox CR800 " type,

The supply of KerrMcGee chemical company)

The table II

The material weight share

The sulphur 3 that is settled out

Example 2

The composition of table in the I mixed and make sheet form in the example 1) to form two independently sheet shaped pieces 1 and 2(Fig. 3.Sheet shaped piece 1 prolong be depressed into 0.040 inch thick.After sheet shaped piece 2 closes the sulfur content that is settled out of rubber gross weight 3% in interpolation, prolong be depressed into 0.020 inch thick.Then sheet 1 is laminated to 2, impresses out ridge structure 3, and heated 9 minutes down at 350 °F, during this period of time, sulphur and rubber reaction influence sheet 2 sulfurations (Fig. 4) that top has ridge.Identical with example 1, the finished product band was handled 10 minutes similar in the result of reaction and the last experiment, and recovery fully after 10 minute stand-by period under the weight effect of buggy wheel.

Example 3

Repeat the step in the example 2, but exception is arranged, promptly the liquid polyurethane of the isocyanates polyalcohol of Ameron house mark " Amershield " by name, be coated on the top of above-mentioned sulfur-bearing sheet, then before forming ridge-like structure, with one deck glass microballoon 5(Fig. 5) be added on the poly-aminomethyl acid esters layer 4 of this liquid.This liquid level be dried to can touch after, whole member is carried out the relief processing of upper surface, handled 9 minutes down at 350 °F then.Tire experimental result and example 1 are similar, observe the glass microballoon no change, fix very firmly.

Example 4

Repeat the step of example 2, but exception is arranged, before reliefization, the upper surface 2 of giving sulfur-bearing is coated with 20% solution of one deck Dow Corning 26040 " silane " in methyl alcohol, coated glass microballon subsequently.The sheet shaped piece of handling was like this heated for 30 seconds down in 350 °F, and reliefization forms ridge structure then.The operation of this reliefization causes microballon 7 partly to embed the surface of near vertical, and almost completely embeds the surface (Fig. 6) of level.After reliefization, this sheet shaped piece is heated 9 minutes down to finish the sulfuration of sour formation in 350 °F.Identical in the experimental result of wheel and the example 1 observed the glass microballoon no change simultaneously, is fixed on firmly in the vulcanized rubber layer.

The people who is familiar with this technology can make further remodeling to this, and these all should be regarded as in the spirit and scope of the present invention by appended claim book defined.

Claims (10)

1, a kind of highway sign band that is used for being attached on the highway along self bottom surface, it comprises the sheet shaped piece of a class rubber, its bottom and basal surface tool cold flow characteristic, its upper strata and upper surface then are deformed into the jut of continuous mutually ridge and wedge and so on, promptly can be the reflective retroreflection of this colored belt from incident light along the vehicle of this road running, to point out the direction of highway, this upper strata is cross-linking vulcanized, the above-mentioned teat that wheel is crossed and depress restores, and this colored belt can be imitated with the highway shape thereon bonding simultaneously.

2, highway sign band as claimed in claim 1, wherein be at least the front side of above-mentioned protuberance and rear side coated with soot layer, these glass microballoons partly are embedded into into the spine of this sulfuration or wedge portion, partly expose among the latter.

3, highway sign band as claimed in claim 1, upper strata wherein and bottom all are the parts of whole sheet rubber, and are that vulcanize on carinate top.

4, highway sign band as claimed in claim 1, bottom has wherein had adhesive along the surface of its exposure, is used for touching closing highway.

5, highway sign band as claimed in claim 1, colored belt wherein include table I and the listed material of table II in the manual.

6, a kind of method of preparation highway sign band and similar articles, it comprises: dispose the upper strata and the upper surface of class sheet rubber, make it to be applicable to the heat treatment of this layer with surface-crosslinked sulfuration; With the distortion of this upper strata and upper surface, be protruding in continuous mutually jut, can reflect in view of the above from reverberation along the vehicle of road running; Under heating condition, make this upper strata and upper surface cross-linking vulcanized, keep the cold flow characteristic of this sheet rubber lower floor and soffit simultaneously; Aforementioned soffit is adhered on the highway, make it imitative with the highway shape under the vehicle contact, simultaneously the jut of said upper surface is restored to the original state after depressing through vehicle.

7, a kind of method as claimed in claim 7 wherein before aforementioned vulcanization process, is covered front side and the rear side that is coated in said jut at least with the microballon of retroreflection, allows these microballons expose from the center with dividing.

8, a kind of method as claimed in claim 7, wherein said microballon are coated with a kind of bonding agent that solidifies with said upper strata and upper surface.

9, a kind of method as claimed in claim 7, wherein said highway sign band is made up of the listed material of table I in the manual.

10, a kind of method as claimed in claim 7, wherein said disposal is to use sulphur, and the said upper strata that will dispose is a sheet shaped piece independently, promptly makes it to vulcanize and is laminated to one and independently have on the rubber-sole layer sheet shaped piece of cold flow characteristic.