WO1999013368A1 - Cable a fibres optiques de structure composite compacte - Google Patents
Cable a fibres optiques de structure composite compacte Download PDFInfo
- Publication number
- WO1999013368A1 WO1999013368A1 PCT/FR1998/001899 FR9801899W WO9913368A1 WO 1999013368 A1 WO1999013368 A1 WO 1999013368A1 FR 9801899 W FR9801899 W FR 9801899W WO 9913368 A1 WO9913368 A1 WO 9913368A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- sheath
- reinforced
- cable according
- polymer material
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 239000013307 optical fiber Substances 0.000 title claims abstract description 42
- 229920000642 polymer Polymers 0.000 claims abstract description 35
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims description 45
- 239000002861 polymer material Substances 0.000 claims description 42
- 229920001577 copolymer Polymers 0.000 claims description 30
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 28
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 21
- -1 poly (C1-C6 alkylene terephthalate Chemical compound 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 8
- 239000005977 Ethylene Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 125000002947 alkylene group Chemical group 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- UPHOPMSGKZNELG-UHFFFAOYSA-N 2-hydroxynaphthalene-1-carboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=C(O)C=CC2=C1 UPHOPMSGKZNELG-UHFFFAOYSA-N 0.000 claims description 4
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical class OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000379 polypropylene carbonate Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920001002 functional polymer Polymers 0.000 claims 4
- 229920002313 fluoropolymer Polymers 0.000 claims 2
- 239000013078 crystal Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000010410 layer Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000012815 thermoplastic material Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- HJJVPARKXDDIQD-UHFFFAOYSA-N bromuconazole Chemical compound ClC1=CC(Cl)=CC=C1C1(CN2N=CN=C2)OCC(Br)C1 HJJVPARKXDDIQD-UHFFFAOYSA-N 0.000 description 4
- 238000005253 cladding Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000004760 aramid Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920013651 Zenite Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- VPKDCDLSJZCGKE-UHFFFAOYSA-N methanediimine Chemical group N=C=N VPKDCDLSJZCGKE-UHFFFAOYSA-N 0.000 description 1
- VGPBPWRBXBKGRE-UHFFFAOYSA-N n-(oxomethylidene)hydroxylamine Chemical compound ON=C=O VGPBPWRBXBKGRE-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- PGNWIWKMXVDXHP-UHFFFAOYSA-L zinc;1,3-benzothiazole-2-thiolate Chemical compound [Zn+2].C1=CC=C2SC([S-])=NC2=C1.C1=CC=C2SC([S-])=NC2=C1 PGNWIWKMXVDXHP-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
- G02B6/4433—Double reinforcement laying in straight line with optical transmission element
Definitions
- the present invention relates to a fiber optic cable whose compact composite structure is intended to produce extremely dense and light cables, economical and resistant.
- Fiber optic cables, or optical cables are widely used in the field of long-distance communications and are increasingly competing with copper cables in the field of local telecommunications networks or in corporate networks. They allow light to be transmitted between two more or less distant sites and offer a transmission capacity which opens a new era of communication at very high speed for voice, data and images.
- Optical cables must effectively protect optical fibers in order to maintain proper transmission of information.
- they In the competition with copper media, however, they must also be very economical and be very easy to install. They must therefore be modular, compact, light, and have great ease of installation and connection.
- the cost of the cable itself it is indeed the overall cost of the cable installed that must be competitive compared to conventional cables made with copper wires. If this cost quickly proved to be competitive for very high speed long distance links, the competition turns out to be much tougher for links in short distance local area networks, particularly in the face of the digitization of cables with symmetrical shielded pairs or no, likely to transmit over reasonable distances at high frequencies.
- the small size of the optical fibers as well as the low expansion coefficient of the silica are at the origin of the great sensitivity of the optical fibers to mechanical and thermal aggressions.
- patent application 093/24574 describes polymer blends comprising a liquid crystal polymer, a polymer matrix which can be a polyethylene terephthalate or a polybutylene terephthalate, and a compatibilizing agent which is a polymer containing reactive groups.
- the reactive groups of the compatibilizer react with both the liquid crystal polymer and the polymer matrix to thereby improve compatibility between the matrix and the liquid crystal polymer.
- the implementation of this mixture of polymers for the production of optical cables is complex since it requires a double extrusion.
- the subject of the invention is therefore a fiber optic cable with a compact composite structure, characterized in that it comprises:
- first sheath ensuring the packaging of the optical fiber or fibers and facilitating the extrusion of the second sheath
- a second sheath made of an extrudable reinforced polymer material capable of providing the compact composite structure with a higher Young's modulus and a low coefficient of expansion
- the invention has in fact been achieved thanks to the development and use of a particular reinforced polymer material, having physicochemical characteristics at least equal to those of the polymer alloys already known, and thanks to the combination of this particular material or alloy with on the one hand a first support layer facilitating the extrusion at very high speed of said alloy, and on the other hand a second outer layer substantially reducing the straw effect ' and providing ' the optical cable characteristics of the friction coefficient type adapted to economical laying techniques, such as blowing or pushing.
- the coextrusion assembly thus produced leads to a composite cable structure of small dimensions, simpler, less costly than the currently existing structures, structure which can be possibly reinforced by a few load-bearing strands according to the desired tensile strength characteristics, l 'assembly obtained having performance at least equivalent to that of current optical cables.
- optical cables which are the subject of the present invention can be obtained in any form, depending on the subsequent use envisaged, for example in the form of cylindrical cables or in the form of optical ribbons.
- the extrudable reinforced polymer material used in the constitution of the second sheath comprises at least one liquid crystal polymer, at least one polymer giving said reinforced polymer material a high flexible flexural modulus, and at least one non-copolymer ' functional.
- the reinforced extrudable polymeric material used for constituting the second sheath of the optical cable according to the invention comprises:
- the proportion of liquid crystal polymer included in the reinforced extrudable polymer material is chosen to be between
- any liquid crystal polymer can be used in the extrudable reinforced polymer material used in accordance with the invention.
- liquid crystal polymer is an aromatic polyester or an aromatic polyamide polyester having the characteristics of liquid crystal polymers.
- liquid crystal polymers are, for example, liquid crystal polymers sold under the trademark VECTRA ® B950, VECTRA ® A950,
- VECTRA ® RD501 or those marketed by the Company
- a liquid crystal polymer which is commercially available and which is a copolymer of hydroxynaphthoic acid and hydroxybenzoic acid, for example a liquid crystal copolymer of the brand VECTRA® A950, containing 23% by weight of hydroxynaphthoic acid and 77% by weight of hydroxybenzoic acid.
- this liquid crystal polymer is preferably used in an amount ranging from approximately 20 to 60% and more preferably still from 30 to 50% by weight of the total weight of the reinforced polymer material.
- the polymer giving said material a high flexural modulus is chosen from poly (C 1 -C 4 alkylene) terephthalates and polyamides, the copolymers comprising at least one poly (C 1 -C 4 alkylene) terephthalate block, used alone or in mixture.
- Copolymers of which at least one block consists of poly (C ⁇ -C alkylene terephthalate, comprises, in addition to said poly (alkylene C ⁇ -C 4. tereptalate) block (s), polymer sequences of any kind, for example polyester, polyolefin, polyether, etc.
- copolymers comprising at least one poly (C ⁇ ⁇ C alkylene) terephthalate block mention may be made of the copolymers marketed by the company DUPONT DE
- poly (alkylene Ci-C 4) terephthalates or copolymers having at least one sequence is constituted by a poly (alkylene C: -C 4) terephthalate, in particular polybutylene terephthalate or polyethylene terephthalate or their mixed.
- This polymer is used in amounts ranging from 25 to 85%, preferably from 25 to 65% and even more preferably from 40 to 65% by weight of the total weight of the reinforced polymer material.
- non-functional copolymer any copolymer devoid of functional groups capable of reacting with the liquid crystal polymer and / or the polymer conferring a high flexural modulus.
- the non-functional copolymer does not contain carboxy, anhydride, epoxy, oxazolino, hydroxy, isocyanate, acylacetate, or carbodimide groups.
- It is a copolymer of ethylene / alkyl acrylate in C ⁇ _ 8 and in particular in C ⁇ -C or their mixtures.
- an ethylene / butyl acrylate or ethylene / methyl acrylate copolymer, or a mixture thereof, is used.
- This non-functional copolymer is used in an amount of 1 to 30%, preferably from 1 to 15% and even more preferably from 2 to 12% by weight of the total weight of the reinforced polymer material.
- additives such as fillers, pigments and various substances conventionally used in the polymer technique can be added in order, for example, to facilitate the processing of the material.
- the reinforced polymer material comprises:
- liquid crystal polymer - approximately 60% by weight of liquid crystal polymer, - approximately 30% by weight of polybutylene terephthalate,
- the reinforced polymer material is obtained by simple mixing of the various polymers used in the respective desired quantities.
- the first sheath ensuring the packaging of the optical fiber or fibers and facilitating the extrusion of the second sheath made of the extruded reinforced polymer material described above can be made of any "technical" polymer, that is to say d a polymer having a relatively high flexural modulus such as polyethylene terephthalate or polybutylene terephthalate, polyamides, polypropylene or polycarbonate or a soft material of crosslinkable UV type, which makes it possible to improve the impact resistance, as well as the resistance to bending and which eliminates stresses on the fiber.
- a polymer having a relatively high flexural modulus such as polyethylene terephthalate or polybutylene terephthalate, polyamides, polypropylene or polycarbonate or a soft material of crosslinkable UV type
- the third sheath ensuring the external qualities of the cable can for its part be made with in particular polyvinyl chloride, polyethylene, or flame retarded polyolefins as well as fluorine-type materials.
- the composite structure of compact optical cable which is the subject of the invention therefore comprises a first sheathing of one or more fibers, the fibers retaining little freedom in the tube thus produced by extrusion of a thermoplastic material, then the implementation by extrusion of the reinforced polymer material and in tandem covering it with a very thin sheath intended to limit the residual straw effects of the compact composite structure and to provide the cables with the coefficient of friction characteristics suitable for the application considered.
- optical fiber is meant an optical fiber as sold commercially which comprises a central core of silica, or other equivalent material, covered with two hard plastic sheaths. Conventionally, the central core has a diameter of 125 ⁇ m and the overall diameter of the fiber is 250 ⁇ m. Such an optical fiber is shown in FIG. 1. However, optical fibers protected by a protective layer of another type, moisture-proof and of thin thickness (a few microns) could be used, provided, for example, that they are associate in a buffer material, the association of the buffer material and the reinforced sheath part with the liquid crystal polymer allowing to protect them effectively against mechanical and thermal actions.
- the buffer material is a soft polymer of the UV-crosslinkable resin type which makes it possible to improve the impact resistance, the bending resistance and to eliminate the stresses on the fiber.
- the buffer material is a soft polymer of the UV-crosslinkable resin type which makes it possible to improve the impact resistance, the bending resistance and to eliminate the stresses on the fiber.
- FIG. 1 shows the cross section of a commercial optical fiber as used in the present invention
- FIG. 2 shows the cross section of a cylindrical optical cable called self-reinforced unitube cable, comprising a bundle of optical fibers;
- FIG. 3 shows the cross section of a cylindrical optical cable of the self-reinforced unitube type which includes reinforcing wicks;
- - Figure 4 shows a ribbon type composite cable in which the fibers are juxtaposed linearly;
- - Figure 5 shows the same composite ribbon type cable further comprising reinforcing wicks;
- - Figures 6 and 7 respectively show a compact cylindrical composite cable and a compact composite ribbon type cable.
- FIG. 1 represents the optical fiber 1 used in the invention.
- This consists of a core la made of silica, or other equivalent material.
- This core is surrounded by a first sheath 1b of low modulus resin of the UV crosslinkable type, itself surrounded by a second sheath 1c of hard UV crosslinkable resin.
- first sheath 1b of low modulus resin of the UV crosslinkable type itself surrounded by a second sheath 1c of hard UV crosslinkable resin.
- the compact composite structure of optical cables which is the subject of the invention also applies to other types of fibers such as silica fibers sprinkled with a cladding of 500 ⁇ m for example or 900 ⁇ m or like plastic fibers.
- FIG. 2 shows a simple embodiment of the optical cables according to the invention, that is to say a cylindrical cable of the self-reinforced unitube type.
- the cable 2 comprises a bundle 3 of optical fibers 1, the bundle preferably being slightly free inside the first sheath 4 produced by extrusion of a thermoplastic material thus forming a first elementary tube which will allow easier and high speed of the part of the sheath 5 produced with the reinforced polymer then by a tandem operation, the extrusion of the third sheath 6 forming the compact composite structure.
- the bundle can be formed by a module adapted to the desired applications, for example 1, 2, 4, 6, 8, 10, 12 or 24 fibers. It can also be the result of the association of n elementary bundles and the fibers can be simply assembled or embedded in a filling jelly preventing water from penetrating.
- an elementary composite cable is produced compact with 12 fibers capacity for an internal diameter of approximately 1.2 mm and an external diameter of approximately 3 mm. Most optical cables having such capacities, conventionally produced by sheathing of thermoplastic materials associated with reinforcing elements, have dimensions closer to 6 to 8 mm.
- the combination of the three sheaths of the composite cable leads to a cable particularly dense and therefore economical and easy to install while obtaining mechanical performance and 'thermal perfectly suited to the desired applications, eg for inner cables or for cables in the local subscriber network laid in the pipeline.
- the mechanical quality of the composite is obtained by the association of the three sheaths, each making a contribution either in terms of production process, or in mechanical and thermal quality with the reinforced polymer material, or in quality of friction coefficient and finish with exterior cladding.
- FIG. 3 there is shown a self-reinforced unitube type cable as described above, in which are included reinforcing wicks 1, for example in aramid fibers or glass-epoxy composite fibers in small quantities, intended, while retaining the very economical in character, to significantly increase the tensile strength of the compact composite cable which is the subject of the invention.
- the cable thus comprises a bundle 3 of optical fibers 1, preferably slightly free in the first extruded sheath 4 and the wicks 7, here two in number, included in line at the time of the extrusion of the sheath 5 made of reinforced polymer material , followed in tandem with the extrusion of the outer protective sheath 6.
- a compact composite ribbon type cable has been shown in which the fibers 1 are juxtaposed linearly.
- the fibers are preferably slightly free inside the first sheath 8 extruded in thermoplastic material, covered with a sheath 9 in reinforced polymer material and then with an outer sheath 10 in thermoplastic material extruded in tandem.
- the fibers can, as in the previous embodiment, be arranged in modules of 2, 4, 6, 8, 10, 12 " fibers or more.
- the compact composite ribbon-type cable further comprises reinforcing wicks 11 intended to provide the compact composite cable with higher tensile strength characteristics.
- the compact composite cable comprises a bundle of optical fibers 1, which is covered with a buffer material 12 then with the sheath 13 in reinforced polymer material and with an outer sheath 14 extruded in tandem made of thermoplastic material.
- a buffer material 12 then with the sheath 13 in reinforced polymer material and with an outer sheath 14 extruded in tandem made of thermoplastic material.
- reinforcing wicks can be included, in particular when the sheath of reinforced polymer material is extruded.
- the compact composite cable of the ribbon type comprises fibers 1 juxtaposed linearly and covered with a buffer material 15 then with the sheath 16 in reinforced polymer material and with the outer sheath 17 extruded in tandem.
- the compact composite cables thus produced which can be cylindrical or ribbon-shaped, which can be reinforced by a reduced number of reinforcing wicks according to the desired tensile characteristics, are produced very economically by tandem extrusions with large speed and, thanks to their compactness adding to this economic character, are very easy to install, in particular through a philosophy of superposition of optical networks compared to existing and bulky copper networks.
- the low availability of pre-wired pipes or hoses makes composite optical cables compact objects of the invention particularly interesting for the future of the deployment of optical fibers in local networks of professional or residential subscribers.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Ropes Or Cables (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU90811/98A AU9081198A (en) | 1997-09-05 | 1998-09-04 | Optical fibre cable of compact composite structure |
EP98942828A EP0937271A1 (fr) | 1997-09-05 | 1998-09-04 | Cable a fibres optiques de structure composite compacte |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR97/11081 | 1997-09-05 | ||
FR9711081 | 1997-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999013368A1 true WO1999013368A1 (fr) | 1999-03-18 |
Family
ID=9510812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/001899 WO1999013368A1 (fr) | 1997-09-05 | 1998-09-04 | Cable a fibres optiques de structure composite compacte |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0937271A1 (fr) |
AU (1) | AU9081198A (fr) |
WO (1) | WO1999013368A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004038474A1 (fr) * | 2002-10-25 | 2004-05-06 | Fujikura Ltd. | Cable optique de derivation |
EP1482341A1 (fr) * | 2003-05-26 | 2004-12-01 | Alcatel | Micro-câble à fibres optiques compact |
US7082241B2 (en) * | 2003-01-09 | 2006-07-25 | Sagem Sa | Optical fiber cable with retaining sheath |
EP2101205A1 (fr) * | 2008-03-13 | 2009-09-16 | Tratos Cavi S.p.A. | Câble à fibre optique et son procédé d'installation |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0129372A2 (fr) * | 1983-06-20 | 1984-12-27 | Imperial Chemical Industries Plc | Câble en fibres optiques |
JPS6093406A (ja) * | 1983-10-28 | 1985-05-25 | Nippon Telegr & Teleph Corp <Ntt> | 光フアイバ心線 |
EP0155070A1 (fr) * | 1984-01-25 | 1985-09-18 | Nippon Telegraph And Telephone Corporation | Fibre optique revêtue, procédé de sa fabrication et dispositif pour sa fabrication |
EP0249226A2 (fr) * | 1986-06-13 | 1987-12-16 | Sumitomo Electric Industries Limited | Matériau plastique composite |
JPS62293211A (ja) * | 1986-06-12 | 1987-12-19 | Nippon Telegr & Teleph Corp <Ntt> | 光フアイバケ−ブル |
US4770489A (en) * | 1986-08-27 | 1988-09-13 | Sumitomo Electric Research Triangle, Inc. | Ruggedized optical communication cable |
GB2214653A (en) * | 1988-01-21 | 1989-09-06 | Stc Plc | High Temperature optical cables |
EP0380112A2 (fr) * | 1989-01-26 | 1990-08-01 | Kawasaki Steel Corporation | Composition de résines |
EP0395839A2 (fr) * | 1989-04-29 | 1990-11-07 | KABEL RHEYDT Aktiengesellschaft | Brin optique |
EP0510255A1 (fr) * | 1991-03-25 | 1992-10-28 | Corning Incorporated | Câbles à fibre optique avec une zone tampon composite |
WO1993024574A1 (fr) * | 1992-05-29 | 1993-12-09 | Neste Oy | Melanges polymeres a cristaux liquides, leur procede de preparation et produits fabriques a partir desdits melanges |
EP0696750A1 (fr) * | 1994-08-10 | 1996-02-14 | Alcatel Cable | Procédé de fabrication d'un câble à fibres optiques renforcé; dispositif pour la mise en oeuvre de ce procédé et câble obtenu par ce procédé |
WO1997024403A1 (fr) * | 1995-12-28 | 1997-07-10 | Foster-Miller, Inc. | Melanges de polymeres a cristaux liquides (lcp) rendus compatibles |
-
1998
- 1998-09-04 AU AU90811/98A patent/AU9081198A/en not_active Abandoned
- 1998-09-04 EP EP98942828A patent/EP0937271A1/fr not_active Withdrawn
- 1998-09-04 WO PCT/FR1998/001899 patent/WO1999013368A1/fr not_active Application Discontinuation
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4906066A (en) * | 1983-06-20 | 1990-03-06 | Imperial Chemical Industries Plc | Optical fibre cable utilizing thermotropic liquid crystal polymer and method of making same |
EP0129372A2 (fr) * | 1983-06-20 | 1984-12-27 | Imperial Chemical Industries Plc | Câble en fibres optiques |
JPS6093406A (ja) * | 1983-10-28 | 1985-05-25 | Nippon Telegr & Teleph Corp <Ntt> | 光フアイバ心線 |
EP0155070A1 (fr) * | 1984-01-25 | 1985-09-18 | Nippon Telegraph And Telephone Corporation | Fibre optique revêtue, procédé de sa fabrication et dispositif pour sa fabrication |
JPS62293211A (ja) * | 1986-06-12 | 1987-12-19 | Nippon Telegr & Teleph Corp <Ntt> | 光フアイバケ−ブル |
EP0249226A2 (fr) * | 1986-06-13 | 1987-12-16 | Sumitomo Electric Industries Limited | Matériau plastique composite |
US4770489A (en) * | 1986-08-27 | 1988-09-13 | Sumitomo Electric Research Triangle, Inc. | Ruggedized optical communication cable |
GB2214653A (en) * | 1988-01-21 | 1989-09-06 | Stc Plc | High Temperature optical cables |
EP0380112A2 (fr) * | 1989-01-26 | 1990-08-01 | Kawasaki Steel Corporation | Composition de résines |
EP0395839A2 (fr) * | 1989-04-29 | 1990-11-07 | KABEL RHEYDT Aktiengesellschaft | Brin optique |
EP0510255A1 (fr) * | 1991-03-25 | 1992-10-28 | Corning Incorporated | Câbles à fibre optique avec une zone tampon composite |
WO1993024574A1 (fr) * | 1992-05-29 | 1993-12-09 | Neste Oy | Melanges polymeres a cristaux liquides, leur procede de preparation et produits fabriques a partir desdits melanges |
EP0696750A1 (fr) * | 1994-08-10 | 1996-02-14 | Alcatel Cable | Procédé de fabrication d'un câble à fibres optiques renforcé; dispositif pour la mise en oeuvre de ce procédé et câble obtenu par ce procédé |
WO1997024403A1 (fr) * | 1995-12-28 | 1997-07-10 | Foster-Miller, Inc. | Melanges de polymeres a cristaux liquides (lcp) rendus compatibles |
Non-Patent Citations (4)
Title |
---|
CHEMICAL ABSTRACTS, vol. 123, no. 22, 27 November 1995, Columbus, Ohio, US; abstract no. 287524, XP002066380 * |
DATABASE WPI Week 8527, Derwent World Patents Index; AN 85-162539, XP002066382 * |
DATABASE WPI Week 8805, Derwent World Patents Index; AN 88-033162, XP002066381 * |
S. UETA ET AL., KYUSHU SANGYO DAIGAKU KOGAKUBU KENKYU HOKOKU, vol. 31, 1994, pages 147 - 150 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004038474A1 (fr) * | 2002-10-25 | 2004-05-06 | Fujikura Ltd. | Cable optique de derivation |
US7082241B2 (en) * | 2003-01-09 | 2006-07-25 | Sagem Sa | Optical fiber cable with retaining sheath |
EP1482341A1 (fr) * | 2003-05-26 | 2004-12-01 | Alcatel | Micro-câble à fibres optiques compact |
EP2101205A1 (fr) * | 2008-03-13 | 2009-09-16 | Tratos Cavi S.p.A. | Câble à fibre optique et son procédé d'installation |
Also Published As
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AU9081198A (en) | 1999-03-29 |
EP0937271A1 (fr) | 1999-08-25 |
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