EP1325360A1 - Lichtleiter aus polycarbonat - Google Patents
Lichtleiter aus polycarbonatInfo
- Publication number
- EP1325360A1 EP1325360A1 EP01982316A EP01982316A EP1325360A1 EP 1325360 A1 EP1325360 A1 EP 1325360A1 EP 01982316 A EP01982316 A EP 01982316A EP 01982316 A EP01982316 A EP 01982316A EP 1325360 A1 EP1325360 A1 EP 1325360A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unsubstituted
- light guide
- substituted
- polycarbonate
- aliphatic
- 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- Withdrawn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
Classifications
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
- C08F290/147—Polyurethanes; Polyureas
-
- 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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
-
- 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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/6795—Unsaturated polyethers
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02033—Core or cladding made from organic material, e.g. polymeric material
Definitions
- the present invention relates to polycarbonate with a low particle content, the use of this polycarbonate for the production of light guides, light guides comprising a core, containing said polycarbonate, a process for
- Optical fibers are used to transmit optical signals.
- Light guides contain one
- Core made of optically transparent material.
- the core can be made of glass or plastic, for example.
- the core is also called fiber.
- the core or the fiber can have any cross-section and diameter. In practice, the cross-section and diameter are selected in accordance with the technical requirements.
- the core of the light guide is usually coated.
- the coating can be made of plastic or paint, for example.
- the coating offers some protection against mechanical effects on the core.
- the coating further improves the efficiency of the transmission of optical signals with the
- This system of core and coating can be surrounded by a shell or a jacket. This serves, for example, to protect against damage and
- the transmission of the optical signal preferably by visible light, takes place in
- Light guides take place primarily in the core.
- the optical properties of the core are therefore particularly important. It is particularly desirable that the core's attenuation coefficient be small so that signal transmission over long distances without too much loss of signal intensity.
- Light guides comprising a polycarbonate fiber as the core are known.
- a disadvantage is the high damping coefficient of known polycarbonate qualities.
- Light guides based on plastic-coated polycarbonate fibers are known from:
- plastics which have hitherto been proposed for the coating of polycarbonate fibers, are disadvantageous because they have inadequate heat resistance (b), (c), (d), an insufficient elongation at break (b), (c), (d), (g) and / or have insufficient adhesion to the polycarbonate (a), (e), (f), (g), (h), for one application Too complex to manufacture on an industrial scale and therefore too expensive ((a), (e), (f), (h)), and / or lead to the formation of stress cracks in the polycarbonate core (g).
- UV-polymerizable mixtures of poly- and monofunctional acrylates or methacrylates for the coating of as
- optical fibers to be used (see e.g. EP-A 0 125 710, EP-A 0 145 929, EP-A 0 167 199, DE-A 3 522 980).
- EP-A 0327 807 discloses light guides with a core made of polycarbonate and a coating made of polymerized acrylates and / or methacrylates.
- the object of the invention is to provide polycarbonate, the damping coefficient of which is low, so that it can be used to produce high-quality light guides.
- the object according to the invention is to comprise a light guide
- the advantageous properties of the polycarbonate fibers in particular the high transparency, the high refractive index, the high heat resistance, the good mechanical properties, such as the high flexural strength and the high tensile strength and the low water absorption capacity, should not be impaired. It has now been found that the objects of the invention can be achieved with polycarbonate, the content of particles which are insoluble in polycarbonate does not exceed a certain level.
- the object of the invention is achieved by polycarbonate containing less than 80,000 particles per gram of polycarbonate of particles insoluble in polycarbonate with a size of 0.3 to 10 ⁇ m, preferably less than 45,000 particles / g with a size of 0.3 to 0, 6 ⁇ m and less than 30,000 particles / g with a size of 0.6 to 1.0 ⁇ m and less than 3,000 particles / g with a size of 1.0 to 2.0 ⁇ m and less than 500 particles / g with a size Size of 2.0 to 5.0 ⁇ m and less than 200 particles / g with a size of 5.0 to 10 ⁇ m, particularly preferably less than 30,000 particles / g with a size of 0.3 to 0.6 ⁇ m and less than 20,000 particles / g with a size of 0.6 to 1.0 ⁇ m and less than 2,000 particles / g with a size of 1.0 to 2.0 ⁇ m and less than 300 particles / g with a size of 2.0 to 5.0 ⁇ m and less than 100
- 5.0 to 10 ⁇ m very particularly preferably less than 25,000 particles / g with a size of 0.3 to 0.6 ⁇ m and less than 10,000 particles / g with a size of 0.6 to 1.0 ⁇ m and less than 1,500 particles / g with a size of 1.0 to 2.0 ⁇ m and less than 50 particles / g with a size of 2.0 to 5.0 ⁇ m and less than 20 particles g with a size of 5 , 0 to 10 ⁇ m.
- the object according to the invention is achieved by using the polycarbonate according to the invention for producing light guides.
- the object of the invention is achieved by light guides comprising a core containing the polycarbonate according to the invention.
- Light guides in which the coating contains a polymer which contains repeating units derived from the monomers are particularly preferred one or more different compounds according to formula (I)
- n 2, 3 or 4
- D represents the m-valent radical of an aliphatic or aromatic hydrocarbon
- R is hydrogen or methyl
- Z, ⁇ 2 and Z3 independently of one another for oxygen, sulfur, the -N (R) group (in which R is hydrogen or unsubstituted or substituted, preferably unsubstituted alkyl, aralkyl or aryl) or a divalent radical of the formula (II)
- a ⁇ , A2, A3 and A4 independently of one another represent an unsubstituted or substituted, preferably unsubstituted, divalent radical of an aliphatic, cycloaliphatic, aromatic-aliphatic or aromatic hydrocarbon,
- n stands for zero or an integer from 1 to 20
- R2 is hydrogen or methyl
- A5 an unsubstituted or substituted, preferably unsubstituted, divalent radical of an aliphatic or cycloaliphatic
- R ' is H or unsubstituted or substituted, preferably unsubstituted alkyl, aralkyl or aryl, and
- R3 is an optionally substituted alkyl, cycloalkyl or aralkyl radical.
- Z2 and Z3 mean oxygen, Z ⁇ ste for oxygen or the group OC NH A NH CO ht, in
- O O or A is an unsubstituted or substituted, preferably unsubstituted, divalent radical of an aliphatic or cycloaliphatic C2-C ⁇ g hydrocarbon, preferably the rest
- Ai is an ethylene or propylene-1,2 radical
- A2, A3 and A4 are independently unsubstituted or substituted, preferably unsubstituted, divalent radicals, preferably C2-Cg radicals, aliphatic or cycloaliphatic hydrocarbons. Also particularly preferred among the light guides mentioned are those in which in formula (III)
- A5 is an unsubstituted or substituted, preferably unsubstituted, C2-C6 alkylene radical
- Z5 and Zg independently of one another represent oxygen or the -NH group
- R3 is a C 1 -C 4 -alkyl radical.
- R3 is an unsubstituted or substituted, preferably unsubstituted, -CC-alkyl radical
- Z5 stands for oxygen and Z for the -NH group.
- the proportion of the repeating units derived from the monomers mentioned under A) in the polymer is 25 to 75% by weight and the proportion of the repeating units derived from the monomers mentioned under B) in the Polymer is 25 to 75% by weight and the sum of the proportions of the repeating units, derived from the monomers mentioned under A) and under B), in the polymer is 50 to 100% by weight, particularly preferably 100% by weight, is.
- the object according to the invention is achieved by a method for producing the light guide according to the invention by coating the core of the
- a method is preferred in which the proportion of the photoinitiator in the composition is 0.1 to 10% by weight.
- the object according to the invention is achieved by light guides obtained by the method according to the invention.
- the object according to the invention is achieved by using the light guides according to the invention in means of transport.
- the object according to the invention is achieved by means of transport comprising the light guide according to the invention.
- the polycarbonate according to the invention has a lower damping coefficient.
- the curing speed of the coatings according to the invention is very high, which makes advantageous production possible.
- the coatings according to the invention ensure that there is no stress cracking in the polycarbonate fiber.
- the use of the light guides according to the invention in transport means is advantageous because the light guides according to the invention enable a weight reduction compared to known light guides, for example those made of glass. They also have advantageous mechanical properties, in particular the light guides according to the invention are unbreakable in comparison with light guides made of glass.
- the light guides according to the invention enable significantly simplified handling and better connection technology. In automobiles, copper cables are common for signal transmission, compared to which a significant weight reduction is possible.
- Vehicles in the sense of the present invention are in particular automobiles, rail vehicles, ships and airplanes.
- the monomers for the coatings according to the invention are known or can be prepared by known processes. Some of them are commercially available.
- the tetravalent residues of aliphatic or aromatic hydrocarbons are, for example, the tetravalent aliphatic alcohols, e.g. Pentaerythritol, underlying hydrocarbon residues.
- the trivalent radicals of aliphatic or aromatic hydrocarbons are, for example, the aliphatic triols, such as glycerol, trimethylolethane, trimethylolpropane or hexanetriol, aromatic tricarboxylic acids, such as benzene-1,2,4-tricarboxylic acid or benzene-l, 3,5- tricarboxylic acid or aromatic triisocyanates, such as 2,4,6-tolylene triisocyanate or 4,4 I , 4 "-triphenylmethane triisocyanate, the underlying hydrocarbon radicals.
- the aliphatic triols such as glycerol, trimethylolethane, trimethylolpropane or hexanetriol
- aromatic tricarboxylic acids such as benzene-1,2,4-tricarboxylic acid or benzene-l
- 3,5- tricarboxylic acid or aromatic triisocyanates such as 2,4,6-tolylene
- a j , A 2 , A 3 , A and A 5 are optionally substituted divalent
- Residues of aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbons especially the aliphatic diols, such as ethylene glycol, 1,2-propanediol,
- the aliphatic dicarboxylic acids such as succinic acid, dimethylmalonic acid, glutaric acid, methyl succinic acid, adipic acid, dimethyl succinic acid, pimellic acid, suberic acid, azelaic acid, sebacic acid, decanedicarboxylic acid or dimer fatty acid or cycloaliphatic dicarboxylic acids, such as 1,2-dicarboxylic acids -, 1,4-cyclohexanedicarboxylic acid, and aromatic carboxylic acids such as terephthalic acid, isophthalic acid, phthalic acid, naphthalene 1,2-, -1,4-, -1,5-, -1,8-dicarboxylic acid,
- the optionally substituted, divalent aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radicals are, above all, the aliphatic diisocyanates such as hexamethylene diisocyanate or trimethylhexamethylene 1,6-diisocyanate, cycloaliphatic diisocyanates such as cyclohexane-1,4-diisocyanate and cyclopentane , 3-diisocyanate, methylene bis (4,4'-cyclohexyl) diisocyanate and 1-isocyanatomethyl-5-isocyanato-l, 3,3-trimethylcyclohexane, and aromatic diisocyanates such as 2,4- and 2 , 6-tolylene diisocyanate, 3,3'-dimethyl-4,4 , -diphenylmethane diisocyanate, 4,4'-diphenylmethane diisocyanate and 4,4'-diphenyl
- R 3 are as optionally substituted alkyl radicals such as methyl, ethyl, propyl, n-butyl, sec.-butyl, i-propyl, tert.-butyl, i-butyl, pentyl, i-pentyl, neopentyl, Heptyl, n-hexyl, 2-ethyl-hexyl, nonyl, decyl, cetyl, Dodecyl and stearyl radicals, as cycloaliphatic radicals, cyclopentyl and cyclohexyl radicals optionally substituted by methyl groups.
- the araliphatic radicals are, above all, the benzyl radical and benzyl radicals substituted by methyl and lower alkoxy groups.
- the compounds of formula (I) are compounds containing ether, ester, urethane and / or urea groups. It is preferably polyethers and / or polyester polyols reacted with acrylic acid derivatives or methacrylic acid derivatives.
- the polycarbonates according to the invention can contain conventional additives.
- the light guides according to the invention can contain further constituents.
- they can contain adhesion-promoting intermediate layers.
- they can contain protective cladding layers, especially those that are flexible but resistant to aqueous solutions as well as mineral oils and fuels, such as e.g. thermoplastic polyurethanes and rubbers.
- the coatings according to the invention can contain customary additives.
- the coatings according to the invention can contain conventional additives such as e.g. Solvents that are inert to polycarbonates, contain polymerization inhibitors, antioxidants, etc.
- Photo initiators are known and customary in the trade. Examples of photoinitiators include: benzoin, benzoin ethers, benzyl ketals, benzophenone, thioxanthone and the derivatives thereof, for example benzyl ethyl ketal and 2-hydroxy-2-methyl-l-phenyl-propan-1-one.
- Branching agents such as trisphenols and / or isatin biscresol (phenol) (see, for example, DE-A 1 570 533, DE-A 1 595 762, DE-A 2 500 092), stabilizers such as phosphines and / or phosphites (see, for example, EP-A 0 143 906, DE-A 21 40207) and mold release agents (see, for example, DE-A 2 507 748, DE-A 2 729 485 and DE-A 2 064 095).
- the polycarbonates are preferably worked up in a known manner by precipitation, spray evaporation or extrusion.
- the relative viscosity of a 0.5% solution of the polycarbonate in methylene chloride at 25 ° C. is preferably between 1.18 and 1.32.
- Particularly preferred polycarbonates are the homopolycarbonate based on bisphenol A, the homopolycarbonate based on l, l-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, the homopolycarbonate based on one of the following bisphenols
- copolycarbonates from combinations of the bisphenols mentioned, in particular the copolycarbonate based on the two monomers bisphenol A and 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane.
- the homopolycarbonate based on bisphenol A is very particularly preferred.
- the polycarbonate preferably has a heavy metal content of less than 5 ppm, particularly less than 3 ppm, very particularly less than 0.5 ppm. Low heavy metal contents result in less optical attenuation in the light guide.
- the polycarbonate can be made by known methods, e.g. after this
- the polycarbonate with a lower particle content according to the invention is preferably produced as follows.
- Raw materials and solvents are filtered through filters, preferably with pore sizes of 0.25 to 15 ⁇ m, particularly preferably 0.5 to 5 ⁇ m.
- Spinning, granulation and handling of the polycarbonate must take place under clean conditions (clean room) with the exclusion of dust.
- the viscosity of the compositions to be applied to the polycarbonate fibers according to the invention and polymerizable by UV rays can be selected by the choice of Molecular weight of components A and B and / or varied within wide limits by the ratio of components A and B and adjusted to the intended spinning speeds and spinning temperatures of the polycarbonate fibers.
- the compositions to be used according to the invention preferably have a viscosity of 500 to 10,000 cP at 25 ° C.
- the compositions to be used according to the invention can preferably be processed at temperatures from 15 to 140 ° C.
- the polycarbonate core of the light guide of the polycarbonate fibers can first be produced and later with those to be applied according to the invention
- Coating materials are provided. However, it is more advantageous to apply the coating immediately after the polycarbonate fiber has been produced.
- the thickness of the coating to be applied to the polycarbonate fiber according to the invention is preferably less than 50 ⁇ m.
- the light guides according to the invention can be processed into single-core or multi-core cables by the light guides individually for themselves or a plurality of light guides combined into a bundle with further polymer layers, e.g. by coextrusion.
- the polymer layer is preferably a thermoplastic elastomer.
- the light guides can be glued into a bundle.
- the diameter of the light guide is preferably between 0.05 mm to 5 mm, particularly preferably 0.1 mm to 3 mm, very particularly preferably 0.25 to 1.5 mm.
- the light guides according to the invention can also be used as lighting elements.
- the surface of the light guide is at the desired
- the light can be directed to the desired location to be illuminated. For example, you can fittings, for example in electronic devices such as radios or computers, are illuminated.
- Examples 1 to 8 are according to the invention.
- Examples 9 to 12 are comparative examples (comparative mixtures).
- a polycarbonate fiber according to the invention (diameter: 1.0 mm) was pulled vertically from top to bottom centrally through a vessel which had a nozzle (diameter: 1.2 mm) at its bottom.
- the vessel was filled with one of the coating mixtures described below.
- a 20 cm long medium pressure mercury lamp (power: 120 W / cm) was located below the coating vessel, parallel to the thread
- Parabolic mirror was focused on the thread in order to obtain the highest possible light output for the UV polymerization of the coating mixtures.
- the coated thread was wound on a large drum, which ensured that the thread was pulled through the system by means of a motor drive, the speed being a constant 5 m / min.
- the thickness of the coating applied to the polycarbonate thread was 10 to 30 ⁇ m in all cases.
- All mixtures 1 to 12 contained 3 parts by weight of the photoinitiator 2-hydroxy-2-methyl-1-phenyl-propan-1-one.
- the maximum curing rate of the individual mixtures was determined in the simplified manner described below on coated films; however, the results obtained on the films are readily transferable to fibers.
- the mixtures were applied to a polycarbonate plate using a doctor blade (film thickness: 50 ⁇ m).
- the coated polycarbonate sheets were carried out on a belt at a certain speed under a UV irradiation system (UV laboratory device from U. Steinemann AG; 80 W / cm).
- reaction products a to h used as component A in mixtures 1 to 12 were obtained as follows:
- Reaction product b 500 g of a linear polyester having OH groups (average molecular weight: 1,000; OH number 112; reaction product of adipic acid and neopentyl glycol), 255 g of 2-hydroxyethyl acrylate and 350 g of isophorone diisocyanate were used in the reaction product for reaction a) described way implemented.
- reaction product a 500 g of unbranched, hydroxyl-containing polyester (average molecular weight: 2,250); Reaction product from adipic acid and butanediol), 300 g of 2-hydroxyethyl acrylate and 335 g of isophorone diisocyanate were reacted in the manner described for the reaction product a).
- Gas inlet pipe provided 1 1-flask filled and with 0.1 g Desmorapid SO as well as 0.05 g of di-tert-butyl-quinone and heated to 60 to 65 ° C. At this temperature, 50 g of isophorone diisocyanate are added dropwise while passing dry air through. The reaction mixture was then stirred at 60 to 65 ° C until the NCO number had dropped below 0.1%.
- Reaction product g 600 g of a linear hydroxyl-containing polyester (average molecular weight: 2,000; reaction product of adipic acid with ethylene glycol, diethylene glycol and butanediol), 22.7 g acrylic acid, 3.1 g p-toluenesulfonic acid, 0.3 g p-methoxyphenol, 0 , 3 g of di-tert-butyl hydroquinone and 220 g of toluene are reacted in the manner described for reaction product d) and, after removal of the toluene, are also reacted with 31.6 g of isophorone diisocyanate as described for reaction product e).
- Example 13 (according to the invention; particles each per 1 gram of polycarbonate)
- Attenuation coefficient measured at 660 nm: 2.3 dB / m
- Example 14 (according to the invention; particles each per 1 gram of polycarbonate)
- Attenuation coefficient measured at 660 nm: 1.3 dB / m
- Example 15 (comparison; particles each per 1 gram of polycarbonate)
- Attenuation coefficient measured at 660 nm: 3.2 dB / m
- the damping coefficient was measured according to the method described in Tamaka et. al., "Fiber other Integrated Optics", Volume 7, page 139 (1987).
- the particle number in polycarbonate was measured using the "Hiac / Royco 346 BCL” device. This is a laser scanning device. Measurements were made on a 2% solution in methylene chloride for particle measurement up to 10 ⁇ m and on a 5% solution for particle measurement above 10 ⁇ m. The measurement was carried out using the method described in US Pat. No. 5,073,313 and in EP-A 0 379 130.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Wood Science & Technology (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Polyesters Or Polycarbonates (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Paper (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10048796A DE10048796A1 (de) | 2000-10-02 | 2000-10-02 | Lichtleiter |
| DE10048796 | 2000-10-02 | ||
| PCT/EP2001/010797 WO2002029447A1 (de) | 2000-10-02 | 2001-09-19 | Lichtleiter aus polycarbonat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1325360A1 true EP1325360A1 (de) | 2003-07-09 |
Family
ID=7658440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01982316A Withdrawn EP1325360A1 (de) | 2000-10-02 | 2001-09-19 | Lichtleiter aus polycarbonat |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US20040057693A1 (de) |
| EP (1) | EP1325360A1 (de) |
| JP (1) | JP2004525392A (de) |
| AU (1) | AU2002213936A1 (de) |
| DE (1) | DE10048796A1 (de) |
| TW (1) | TW556007B (de) |
| WO (1) | WO2002029447A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10058877A1 (de) * | 2000-11-27 | 2002-06-06 | Bayer Ag | Lichtleiter |
| DE602004010013T2 (de) * | 2003-09-02 | 2008-09-04 | Mitsubishi Engineering-Plastics Corp. | Presslinge aus aromatischem Polycarbonatharz für Lichtleiterplatte, Lichtleiterplatte, Verfahren zur Herstellung einer Lichtleiterplatte und Oberflächenlichtquelle welche diese benutzt. |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4522465A (en) * | 1983-11-10 | 1985-06-11 | Desoto, Inc. | Optical fiber coated with an ultraviolet cured topcoating |
| NL8401981A (nl) * | 1984-06-22 | 1986-01-16 | Philips Nv | Optische glasvezel voorzien van een kunststofbedekking en werkwijze voor de vervaardiging daarvan. |
| JPS6116970A (ja) * | 1984-07-02 | 1986-01-24 | Mitsui Toatsu Chem Inc | 活性エネルギ−線硬化被覆用組成物 |
| JPH0646244B2 (ja) * | 1985-05-17 | 1994-06-15 | 三菱レイヨン株式会社 | プラスチック系光ファイバ |
| DE3801576A1 (de) * | 1988-01-21 | 1989-08-03 | Bayer Ag | Lichtleiter auf basis von polycarbonatfasern und verfahren zu ihrer herstellung |
| EP0379130B2 (de) * | 1989-01-20 | 2003-08-13 | Idemitsu Petrochemical Co., Ltd. | Optische Trägerplatte, optisches Informationsspeichermedium und Verfahren zur Herstellung der optischen Trägerplatte |
| JP2844697B2 (ja) * | 1989-07-25 | 1999-01-06 | 三菱瓦斯化学株式会社 | 低ダストポリカーボネート成形品の製造法 |
| US5502153A (en) * | 1992-02-27 | 1996-03-26 | Ge Plastics Japan Ltd. | Method for preparing optical-grade polycarbonate compositions |
-
2000
- 2000-10-02 DE DE10048796A patent/DE10048796A1/de not_active Withdrawn
-
2001
- 2001-09-19 WO PCT/EP2001/010797 patent/WO2002029447A1/de not_active Ceased
- 2001-09-19 US US10/381,613 patent/US20040057693A1/en not_active Abandoned
- 2001-09-19 EP EP01982316A patent/EP1325360A1/de not_active Withdrawn
- 2001-09-19 JP JP2002532968A patent/JP2004525392A/ja active Pending
- 2001-09-19 AU AU2002213936A patent/AU2002213936A1/en not_active Abandoned
- 2001-09-27 TW TW090123833A patent/TW556007B/zh not_active IP Right Cessation
-
2005
- 2005-04-12 US US11/104,090 patent/US20050192425A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0229447A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050192425A1 (en) | 2005-09-01 |
| WO2002029447A8 (de) | 2002-06-13 |
| AU2002213936A1 (en) | 2002-04-15 |
| JP2004525392A (ja) | 2004-08-19 |
| DE10048796A1 (de) | 2002-04-18 |
| US20040057693A1 (en) | 2004-03-25 |
| WO2002029447A1 (de) | 2002-04-11 |
| TW556007B (en) | 2003-10-01 |
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