EP0250489A1 - Roadway marker post - Google Patents

Roadway marker post

Info

Publication number
EP0250489A1
EP0250489A1 EP87900031A EP87900031A EP0250489A1 EP 0250489 A1 EP0250489 A1 EP 0250489A1 EP 87900031 A EP87900031 A EP 87900031A EP 87900031 A EP87900031 A EP 87900031A EP 0250489 A1 EP0250489 A1 EP 0250489A1
Authority
EP
European Patent Office
Prior art keywords
post
resin
mould
fibres
post according
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Withdrawn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
EP87900031A
Other languages
German (de)
French (fr)
Inventor
Eric Ng
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.)
BUILTRITE PRODUCTIONS PTY Ltd
Original Assignee
BUILTRITE PRODUCTIONS PTY Ltd
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 BUILTRITE PRODUCTIONS PTY Ltd filed Critical BUILTRITE PRODUCTIONS PTY Ltd
Publication of EP0250489A1 publication Critical patent/EP0250489A1/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Withdrawn legal-status Critical Current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
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/627—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection self-righting after deflection or displacement
    • E01F9/629—Traffic guidance, warning or control posts, bollards, pillars or like upstanding bodies or structures
    • 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
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones

Definitions

  • This invention relates to roadway markers or guide posts and more particularly to resilient roadway markers which, when struck by a vehicle, give way without suffering impairing damage and which return to the upright position after the vehicle has passed.
  • Australian Patent 526,508 discloses a fibreglass roadway marker which is capable of being driven into the ground when being installed. According to that specification, the structural requirements of resilience and elasticity are inconsistent with the longitudinal rigidity required to resist bending of the post as it is driven into the ground as such longitudinal rigidity tends to prevent the post from yielding to lateral impact after it has been installed.
  • the roadway marker disclosed in Australian specification 526,508 consists of a fibre-reinforced synthetic material which contains a combination of randomly oriented and longitudinally oriented fibres imbedded in 20 to 40% by weight resin binder.
  • the specification further discloses that at least 7% but not more than 60% of the fibres are randomly oriented to increase tensile strength (and hence transverse flexibility) with the remainder of the fibres being longitudinally oriented to provide longitudinal rigidity.
  • Prior art fibreglass roadway marker posts have been formed by a pultrusion process which restricts the outer surface to being part of the pigmented resin in which the fibreglass is embedded. Thus, the post tends to discolour quickly when exposed to sunlight for prolonged periods. Furthermore, such a process does not permit the formation of recesses in the marker for receiving strips of reflective material.
  • a roadway marker post comprising an elongated structure of fibreglass reinforced resin material characterised in that the resin is a catalytic setting resin and the fibres are substantially unidirectional.
  • a method for manufacturing a roadway marker post comprising the steps of:-
  • Fig. 1 is a partly broken away, front elevational view of a raodway marker post according to one embodiment of the invention.
  • Fig. 2 is a front elevational view of the upper portion of a modified roadway marker post.
  • Fig. 3 is a cross-sectional view taken along lines
  • FIG. 1 A-A of Fig. 1, Fig. 4 is a schematic front elevational view of an undeformed roadway marker post, Fig. 5 is a schematic view similar to Fig. 4 but with the post deformed, and. Fig. 6 is a front elevational view of the top portion of a roadway marker post according to one embodiment of the invention and a jig for use in driving the post into the ground.
  • the general shape and configuration of a roadway marker post according to the invention is shown in Figs. 1 and 2.
  • the post 10 is of arcuate cross-section and has an upper portion 11, a body portion 12 and a lower or leading portion 13. As can be seen in Fig. 1, the leading portion 13 of the post 10 is pointed to assist the driving of the post into the ground.
  • the upper portion 11 of the post 10 may carry embossed markings 14 (see Fig. 2) or a recess 15 (see Fig. 1) for receiving a strip of reflector tape. Barbs 16 may be provided on the leading portion 13 to resist withdrawal of the post 10 from the ground.
  • the post 10 consists of a fibreglass reinforced resin material in which the fibres are substantially unidirectionally located in a matrix of a catalytic setting resin.
  • the resin consists of a base material of saturated and unsaturated dibasic acids, and a dihydric glycol.
  • the base material is dissolved in the monomer solvent, styrene, making it fluid.
  • the resin is promoted by one or a combination of:-
  • the catalyst added to the resin may be one of the following catalysts or a combination thereof:- (i) benzol peroxide (ii) methyl ethyl ketone peroxide
  • the abovementioned catalyst may include one or more of the following dilutents:-
  • the properties of the finished polyester is altered as desired.
  • the preferred glycols and acids for a finished composite resin are:-
  • neopentylglycolisophthalic polyester resin ii) isophthtalic polyester resin (iii)neopentylglycol orthophthalic resin (iv) orthophthalic polyester resin
  • resins are not inherently flexible 25-75% by weight of a flexible resin is added.
  • a particularly suitable flexible resin is RCL which is marketed by British Paints.
  • fillers may be included in the amount from
  • the filler can be selected from the group comprising:- (i) calcium carbonate (ii) alumina trihydrate (iii)asbestos flock (iv) zircon flour (v) Calindria 244
  • a single filler, or a combination of fillers may be used in different polyester composites to provide the optimum resin composites under different conditions.
  • the fibreglass used in the roadway marker post is substantially unidirectional save for a very small amount of cross woven fibre used to maintain the greater majority of the fibres in their undirection configuration.
  • the use of this type of glass (defined as 'S' glass and 'E' glass in the form of scrimmed unidirectional glass) gives a very high modulus fibre and are often used in very high performance laminates associated with the aerospace industry.
  • the total resin component is present in an amount from 30 to 225% of the weight of the fibreglass.
  • a preferred post is formed from a specially woven E type unidirectional glass in the form of a 4 inch scrimmed taped and a catalytic setting resin formed from:- a) isophthalc non-flexible resin b) RCL flexible resin (marketed by British Paints ) c) styrene as a thinner d) calcium carbonate as a filler.
  • the amount of each component is varied according to the physical characteristics required of the marker post. However, those amount will be within the ranges identified above.
  • the roadway marker may be formed in a 200-2,500 pounds per square inch cold/hot press machine.
  • the unidirectional glass is placed into the mould at different pre-calculated sections of the mould to create different mechanics of the reinforcement.
  • the changes the stress/strain characteristics of the reinforced plastic will be apparent from the following discussions which considers the schematic post shown in Fig. 4 (undeformed) and Fig. 5 (deformed) from the simple strength of materials viewpoint.
  • the strain in the matrix (e m ) will be equal to the strain in the fibres (e f ):-
  • S m is the stress at failure of the matrix (i.e. its strength) and S f is the stress at failure of the fibre (i.e. its strength) is desirable to match the ratios of stress at failure so that:-
  • the load P required to strain the composite shown in Fig. 4 and 5 is related to the stress of the composite and the cross-sectional area of the composite :-
  • the total load P comprises the load arried by the f ibres P f and the load carried by the matrix P m :-
  • E k E f V f + E m (1-V f ) where: E k is tensile modulus of the composite E f is tensile modulus of the fibres E m is tensile modulus of the matrix
  • the tensile modulus of the post can be calculated once the volume fraction of the fibres has been determined, or alternatively, once the tensile modulus has been set, the volume fraction of the fibres required to achieve the modulus can be readily calculated.
  • the roadside marker post may be driven into the ground by the use of a jig as shown in Fig. 6, which also serves to help keep the marker straight.
  • the jig acts in the manner of a pile-driver, and the distance moved by the marker will depend on the resistance offered by the ground and the velocity of the jig at the moment of impact, as well as the mass of the jig itself.
  • the jig 30 has grips or handles 31 which receive the edges of the post 10 and a striking plate 32 which constitutes the major portion of the mass of the jig.
  • roadway marker posts according to the invention do not lend themselves to be driven into hard ground by the application of a force to their free end as is the case with the posts described in the Australian patent specification 526,508. In normal circumstances, a hole will be dug in the ground and the marker placed therein. The barbs formed at or near the bottom of the marker post resist removal of the post from the ground.
  • the driving jig shown in Fig. 6 is placed over a substantial portion of the marker to prevent flexing and to protect the top of the marker.
  • a coat of polyurethane may be applied to the post by exposing a freshly applied paint film for a short period in a vaporised catalyst atmosphere.
  • a process can utilise urethane linked alkyds, acrylics, epoxies, phenolics and polyester resins.
  • Appropriate selection of the polymer coating to give a desired repeating molecular unit in the cured film can give rise to a wide variety of properties of the film.

Landscapes

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

Abstract

Une borne de jalonnement (10) de chaussée, en résine renforcée avec des fibres de verre, est moulée à partir d'une résine à durcissement catalytique. Les fibres de verre sont essentiellement unidirectionnelles à l'exception d'une très petite quantité de fibres tissées transversalement, utilisées pour maintenir la plus grande partie des fibres dans leur configuration unidirectionnelle. La borne (10) peut être munie d'un évidement (15) destiné à recevoir une bande de matériau réfléchissant, la partie inférieure de ladite borne pouvant en outre recevoir des barbelures (16).A paving staking post (10), made of resin reinforced with glass fibers, is molded from a catalytically hardened resin. Glass fibers are essentially unidirectional with the exception of a very small amount of transversely woven fibers, which are used to keep most of the fibers in their unidirectional configuration. The terminal (10) may be provided with a recess (15) intended to receive a strip of reflective material, the lower part of said terminal also being able to receive barbs (16).

Description

ROADWAY MARKER POST
FIELD OF INVENTION
This invention relates to roadway markers or guide posts and more particularly to resilient roadway markers which, when struck by a vehicle, give way without suffering impairing damage and which return to the upright position after the vehicle has passed.
BACKGROUND ART
Australian Patent 526,508 discloses a fibreglass roadway marker which is capable of being driven into the ground when being installed. According to that specification, the structural requirements of resilience and elasticity are inconsistent with the longitudinal rigidity required to resist bending of the post as it is driven into the ground as such longitudinal rigidity tends to prevent the post from yielding to lateral impact after it has been installed.
The roadway marker disclosed in Australian specification 526,508 consists of a fibre-reinforced synthetic material which contains a combination of randomly oriented and longitudinally oriented fibres imbedded in 20 to 40% by weight resin binder.
The specification further discloses that at least 7% but not more than 60% of the fibres are randomly oriented to increase tensile strength (and hence transverse flexibility) with the remainder of the fibres being longitudinally oriented to provide longitudinal rigidity.
Prior art fibreglass roadway marker posts have been formed by a pultrusion process which restricts the outer surface to being part of the pigmented resin in which the fibreglass is embedded. Thus, the post tends to discolour quickly when exposed to sunlight for prolonged periods. Furthermore, such a process does not permit the formation of recesses in the marker for receiving strips of reflective material. DISCLOSURE OF INVENTION
According to the present invention there is provided a roadway marker post compris ing an elongated structure of fibreglass reinforced resin material characterised in that the resin is a catalytic setting resin and the fibres are substantially unidirectional.
According to another aspect of the invention there is provided a method for manufacturing a roadway marker post comprising the steps of:-
(i) forming a mould having a projection or a recess therein adapted to form a recess or projection in the finished roadway marker post, (ii) applying a gelcoat to the mould, (iii) adding fibreglass and a catalytic setting resin to the mould, and,
(iv) pressing the components within the mould and retaining them in the compressed form until the resin has catalytically set. BRIEF DESCRIPTION OF THE DRAWINGS
In order that the invention may be more readily understood and put into practical effect, reference will now be made to the accompanying drawings in which:-
Fig. 1 is a partly broken away, front elevational view of a raodway marker post according to one embodiment of the invention. Fig. 2 is a front elevational view of the upper portion of a modified roadway marker post.
Fig. 3 is a cross-sectional view taken along lines
A-A of Fig. 1, Fig. 4 is a schematic front elevational view of an undeformed roadway marker post, Fig. 5 is a schematic view similar to Fig. 4 but with the post deformed, and. Fig. 6 is a front elevational view of the top portion of a roadway marker post according to one embodiment of the invention and a jig for use in driving the post into the ground.
DESCRIPTION OF PREFERRED EMBODIMENTS
The general shape and configuration of a roadway marker post according to the invention is shown in Figs. 1 and 2. The post 10 is of arcuate cross-section and has an upper portion 11, a body portion 12 and a lower or leading portion 13. As can be seen in Fig. 1, the leading portion 13 of the post 10 is pointed to assist the driving of the post into the ground.
The upper portion 11 of the post 10 may carry embossed markings 14 (see Fig. 2) or a recess 15 (see Fig. 1) for receiving a strip of reflector tape. Barbs 16 may be provided on the leading portion 13 to resist withdrawal of the post 10 from the ground.
The post 10 consists of a fibreglass reinforced resin material in which the fibres are substantially unidirectionally located in a matrix of a catalytic setting resin.
In a preferred form of the invention, the resin consists of a base material of saturated and unsaturated dibasic acids, and a dihydric glycol. The base material is dissolved in the monomer solvent, styrene, making it fluid. According to the present invention, the resin is promoted by one or a combination of:-
(i) di-methyl aniline (DMA) (ii) di-ethyl aniline (DEA) (iii)cobalt naphthenate (iv) cobalt octoate
(v) 10% solution of DMA in styrene The catalyst added to the resin may be one of the following catalysts or a combination thereof:- (i) benzol peroxide (ii) methyl ethyl ketone peroxide
(iii)LCR The abovementioned catalyst may include one or more of the following dilutents:-
(a) ethyl acetate 20-75%
(b) di-methyl phthalate 20-75% (c) di-allyl phthalate 20-75%
(d) methanol 20-75%
(e) isooctyl acetate 20-75%
(f) styrene 25-20%
(g) water Less than 2% One dilutent, or a combination of the dilutents, is used to adjust various requirements of concentration and of required cure time to form the fully cured resin.
By varying the proportions of the components and by using acids and glycols, the properties of the finished polyester is altered as desired. The preferred glycols and acids for a finished composite resin are:-
(i) neopentylglycolisophthalic polyester resin (ii) isophthtalic polyester resin (iii)neopentylglycol orthophthalic resin (iv) orthophthalic polyester resin
As the abovementioned resins are not inherently flexible 25-75% by weight of a flexible resin is added. A particularly suitable flexible resin is RCL which is marketed by British Paints. Furthermore, fillers may be included in the amount from
10 to 150% of total weight of the composite resin. The filler can be selected from the group comprising:- (i) calcium carbonate (ii) alumina trihydrate (iii)asbestos flock (iv) zircon flour (v) Calindria 244
(vi) antimony trioxide A single filler, or a combination of fillers, may be used in different polyester composites to provide the optimum resin composites under different conditions. The fibreglass used in the roadway marker post is substantially unidirectional save for a very small amount of cross woven fibre used to maintain the greater majority of the fibres in their undirection configuration. The use of this type of glass (defined as 'S' glass and 'E' glass in the form of scrimmed unidirectional glass) gives a very high modulus fibre and are often used in very high performance laminates associated with the aerospace industry.
In a preferred form of the invention, the total resin component is present in an amount from 30 to 225% of the weight of the fibreglass.
Although the posts may be made from a wide variety of the above described materials, a preferred post is formed from a specially woven E type unidirectional glass in the form of a 4 inch scrimmed taped and a catalytic setting resin formed from:- a) isophthalc non-flexible resin b) RCL flexible resin (marketed by British Paints ) c) styrene as a thinner d) calcium carbonate as a filler.
The amount of each component is varied according to the physical characteristics required of the marker post. However, those amount will be within the ranges identified above.
The roadway marker may be formed in a 200-2,500 pounds per square inch cold/hot press machine. The unidirectional glass is placed into the mould at different pre-calculated sections of the mould to create different mechanics of the reinforcement. The changes the stress/strain characteristics of the reinforced plastic will be apparent from the following discussions which considers the schematic post shown in Fig. 4 (undeformed) and Fig. 5 (deformed) from the simple strength of materials viewpoint.
When the unidirectional composite post having fibres 20 and matrix 21 as shown in Fig. 4 is subjected to a load P, both the matrix and the load will undergo elastic deformation by an amount e.
The strain in the matrix (em) will be equal to the strain in the fibres (ef):-
i.e. em = ef
and as — o — ,
then £ or
where: = stress
E = elastic modulus
If Sm is the stress at failure of the matrix (i.e. its strength) and Sf is the stress at failure of the fibre (i.e. its strength) is desirable to match the ratios of stress at failure so that:-
However, it is not critical to achieve an exact match and an approximation will suffice. For example, if the fibres are say, 20 to 40 times stronger than the matrix, then a minor mismatch in the strength will not be significant.
The load P required to strain the composite shown in Fig. 4 and 5 is related to the stress of the composite and the cross-sectional area of the composite :- The total load P comprises the load arried by the f ibres Pf and the load carried by the matrix Pm:-
p = pf + pm
but as and then or,
(eEk)·(Ak) = (eEf)·(Af) + (eEm). (Am) i.e.
It is convenient to express the ratio of the cross- sectional area of the fibres and of the matrix to that of the composite in terms of the volume fraction of the fibres and matrix respectively:-
and
thus. Ek = Ef Vf + Em Vm
and Ek = EfVf + Em (1-Vf) where: Ek is tensile modulus of the composite Ef is tensile modulus of the fibres Em is tensile modulus of the matrix
Thus the tensile modulus of the post can be calculated once the volume fraction of the fibres has been determined, or alternatively, once the tensile modulus has been set, the volume fraction of the fibres required to achieve the modulus can be readily calculated.
The roadside marker post may be driven into the ground by the use of a jig as shown in Fig. 6, which also serves to help keep the marker straight. The jig acts in the manner of a pile-driver, and the distance moved by the marker will depend on the resistance offered by the ground and the velocity of the jig at the moment of impact, as well as the mass of the jig itself. The average force applied by the jig is:- where: F = Average force M = Mass of jig
V = Velocity of the jig at time of impact t = Duration of impact
Any tendency of the marker post to buckle during the driving process is minimised by the presence of the jig, which ensures that the stress applied to the marker is uniform over its upper end. The jig 30 has grips or handles 31 which receive the edges of the post 10 and a striking plate 32 which constitutes the major portion of the mass of the jig. As will be apparent from the above description, roadway marker posts according to the invention do not lend themselves to be driven into hard ground by the application of a force to their free end as is the case with the posts described in the Australian patent specification 526,508. In normal circumstances, a hole will be dug in the ground and the marker placed therein. The barbs formed at or near the bottom of the marker post resist removal of the post from the ground. Where the marker is to be driven in the ground the driving jig shown in Fig. 6 is placed over a substantial portion of the marker to prevent flexing and to protect the top of the marker.
Various modifications may be made in details of composition and process without departing from the scope and ambit of the invention. For example, a coat of polyurethane may be applied to the post by exposing a freshly applied paint film for a short period in a vaporised catalyst atmosphere. Such a process can utilise urethane linked alkyds, acrylics, epoxies, phenolics and polyester resins. Appropriate selection of the polymer coating to give a desired repeating molecular unit in the cured film can give rise to a wide variety of properties of the film.

Claims

CLAIMS :
1. A roadway marker post comprising an elongated web structure of fibreglass reinforced resin material characterised in that the resin is a catalytic setting resin and the fibres are substantially unidirectional.
2. A post according to claim 1 wherein the resin consists of a base material of saturated and unsaturated dibasic acids and a dihydric glycol dissolved in a solvent.
3. A post according to claim 2 wherein the solvent is styrene.
4. A post according to claim 2 or claim 3 wherein the resin includes a promoter selected from the group compris ing dimethyl aniline, di-ethyl aniline, cobalt naphthenate, cobalt octoate and a 10% solution of di-methyl aniline in styrene.
5. A post according to any one of claims 2 to 4 wherein the resin includes a dilutent selected from the group comprising ethyl acetate, di-methyl phthalate, di-allyl phthalate, methanol, isooctyl acetate, styrene and water.
6. A post according to claim 1 wherein the resin is selected from the group comprising: a) neopentylglycol isophthalic polyester resin, b) isophthalic polyester resin, c) neopentylglycol orthophthalic resin, and d) orthophthalic polyester resin together with 0.25 to 76% flexible resin.
7. A post according to any one of the preceding claims and further including a filler in the amount of from 10 to 150% of the resin weight.
8. A post according to claim 7 wherein the filler is selected from the group selected from calcium carbonate, alumina trihydrate, asbestos flock, zircon flour, calindria 244 and antimony trioxide.
9. A post according to any one of the preceding claims wherein the resin is present in an amount of from 40 to 255% of the weight of the fibreglass.
10. A post according to any one of the preceding claims wherein the resin includes a catalyst selected from the group compris ing benzol peroxide, methylethylketone peroxide and LCR.
11. A post according to any one of the preceding claims wherein the films are unidirectional save for a very small amount of cross woven films used to maintain the greater majority of the fibres in their unidirectional configuration.
12. A post according to any one of the preceding claims and further including a plurality of external coats of non-fibreglass material.
13. A post according to claim 12 wherein the external coat is formed from isophthalic neopentylglycol.
14. A post according to any one of the preceding claims and including a recess formed in the upper end of the post.
15. A post according to any one of the preceding claims and including an embossment at the upper end of the post.
16. A post according to any one of the preceding claims and including a plurality of barbs at the lower end of the post.
17. A post according to any one of the preceding claims wherein the volume fraction of the fibres in the post satisfy or substantially satisfy the following relationship:-
Ek = Ef Vf + Em (1-Vf) where: Ek is the tensile modulus of the post
Ef is the tensile modulus of the fibres Em is the tensile modulus of the matrix Vf is the volume fraction of the fibres
18. A method for manufacturing a roadway marker post comprising the steps of:
(i) forming a mould having the shape of the finished roadway marker post, (ii) applying a gelcoat to the mould, (iii) adding substantially unidirectional fibreglass and a catalytic setting resin to the mould, and, (iv) pressing the components within the mould and retaining them in the compressed form until the resin has catalytically set.
19. A method according to claim 17 or claim 18 wherein the fibreglass is substantially unidirectional save for a very small amount of cross woven fibres used to maintain the greater majority of the fibres in their unidirectional configuration whilst the resin is being added to the mould.
20. A method according to claim 18 wherein a projection is formed in the mould so as to form a recess on the post.
21. A method according to claim 18 wherein a recess(s) is formed in the mould so as to provide a projection(s) on the post.
22. A method according to claim 21 wherein the projections are in the form of barbs at one end of the post.
23. A method according to claim 18 wherein the fibreglass is laid in the mould in the direction of the longitudinal axis of the mould.
EP87900031A 1985-12-24 1986-12-24 Roadway marker post Withdrawn EP0250489A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU4025/85 1985-12-24
AU402585 1985-12-24

Publications (1)

Publication Number Publication Date
EP0250489A1 true EP0250489A1 (en) 1988-01-07

Family

ID=3694492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87900031A Withdrawn EP0250489A1 (en) 1985-12-24 1986-12-24 Roadway marker post

Country Status (2)

Country Link
EP (1) EP0250489A1 (en)
WO (1) WO1987003921A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020605A (en) * 1989-10-19 1991-06-04 Product Research And Development Post driver and methodology
FR2720766B1 (en) * 1994-06-03 1996-09-20 Sofop Signaling post.
NL1002455C2 (en) * 1996-02-27 1997-08-28 Akzo Nobel Nv Manufacture of fibre-reinforced plastic laminates
ES2191558B1 (en) * 2002-02-18 2004-08-16 L.B.H. Marmosin, S.L. USE OF A RESIN FOR THE MANUFACTURE IN MOLD OF HOMOGENEAN PARTS, SUCH AS HOBS, BATHROOM AND SIMILAR.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE301168B (en) * 1967-01-23 1968-05-27 Helsingborgs Gummifab Ab
US4092081A (en) * 1977-07-05 1978-05-30 Hpc, Inc. Roadway/traffic delineator
US4290712A (en) * 1979-04-02 1981-09-22 Hayes Norman J Plastic post apparatus and methods
LU82466A1 (en) * 1980-02-08 1980-10-08 Tlb Plastics Corp INDICATOR POST FOR SIGNS ON ROADS
AU554594B2 (en) * 1981-01-21 1986-08-28 Imperial Chemical Industries Plc Fibre re-inforced
DE875351T1 (en) * 1981-01-21 1999-11-04 Kawasaki Chemical Holding Co., Inc. Molded objects made of fiber-reinforced plastic
EP0134607A3 (en) * 1983-08-18 1986-02-19 REHAU AG + Co Marking arrangement for highway construction sites
AU3773585A (en) * 1984-01-27 1985-08-01 Imperial Chemical Industries Plc Fibre reinforced polymer composites

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8703921A1 *

Also Published As

Publication number Publication date
WO1987003921A1 (en) 1987-07-02

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