WO2001011406A1 - Heat strippable optical fiber ribbons - Google Patents
Heat strippable optical fiber ribbons Download PDFInfo
- Publication number
- WO2001011406A1 WO2001011406A1 PCT/US2000/021768 US0021768W WO0111406A1 WO 2001011406 A1 WO2001011406 A1 WO 2001011406A1 US 0021768 W US0021768 W US 0021768W WO 0111406 A1 WO0111406 A1 WO 0111406A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- fiber ribbon
- matrix material
- reactive unsaturated
- elongation
- Prior art date
Links
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
-
- 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
- G02B6/4431—Protective covering with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping
-
- 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
- G02B6/4403—Optical cables with ribbon structure
-
- 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
Definitions
- the present invention is directed to optical fiber ribbons containing radiation cured matrix materials and is directed to radiation cured materials suitable for use, inter alia, as matrix materials for optical fiber ribbons.
- optical fiber ribbons with improved heat strippability to allow clean and reliable splicing of the optical fibers.
- Optical fiber ribbons have been developed to provide increased packing densities, improved accessibility and the like.
- 12-fiber ribbons have become a standard while in Japan, 8-fiber ribbons have
- Optical fiber ribbons are disclosed, for example, in the
- optical fiber ribbons comprise two or more optical fibers embedded and secured within a matrix material.
- the optical fibers often contain one primary
- Ribbon fibers provide a convenient means for splicing fibers as many fibers
- Fiber coatings must be stripped from the fibers which are to be spliced, without damaging the fibers.
- Thermal stripping tools are conventionally employed to heat the
- tube form to avoid damage to the optical fibers and/or to avoid deposit of coating debris on the fibers.
- Optical fiber ribbon splicing is commonly performed in the field, and,
- thermoplastic material including a heat strippable matrix material which allows for clean stripping of material from the optical fibers, substantially independent of operator variability.
- optical fiber ribbons and particularly to provide optical fiber ribbons which are heat strippable. It is an additional object of the present invention to provide optical fiber ribbons which overcome disadvantages of the prior art. It is a more specific object of the invention to provide optical fiber ribbons which allow for clean heat stripping of material from the optical fibers and reliable splicing of the stripped fibers. It is a further object of the invention to provide radiation cured matrix materials for use, inter alia, in optical fiber ribbons.
- optical fiber ribbons and
- the matrix materials exhibit a plurality of properties, including good maximum tensile strength and good elongation at high temperatures.
- the matrix materials exhibit a
- the radiation cured matrix materials exhibit a maximum tensile strength at 100°C of at least about 1000 psi and an elongation at break at 100°C of at least about 15%.
- the matrix material also exhibits a good combination of mechanical and chemical
- optical fibers which are otherwise necessary for encapsulating and protecting the optical fibers within the ribbon structure.
- the present invention is directed to optical fiber ribbons and to radiation cured
- optical fiber ribbons for use, inter alia, in optical fiber ribbons.
- optical fiber ribbons may comprise two,
- ribbons comprising four, eight and twelve optical fibers, respectively, are commonly
- the number of optical fibers in a particular ribbon may be varied as desired.
- Typical optical fiber ribbons in accordance with the present invention are
- the ribbon may comprise subunits, wherein each subunit comprises two or
- optical fibers in the optical fiber ribbons typically have more optical fibers, if desired.
- optical fibers in the optical fiber ribbons typically have more optical fibers, if desired.
- present invention to arrange the optical fibers in other configurations as desirable.
- optical fibers may comprise, for example, a glass core
- the core may comprise silica doped with
- oxides of germanium or phosphorous and the cladding a pure or doped silicate
- the fibers may comprise a polymer clad silica glass
- polystyrene resin examples include organosiloxanes such as
- optical fibers may be any optical fibers.
- the optical fibers may be any optical fibers.
- optical fibers may include ink coloring as desired.
- each fiber of a ribbon or a subunit ribbon is provided with a different
- the matrix material 18 has a unique combination of advantageous
- the matrix material exhibits both a maximum tensile strength at 100°C of
- maximum tensile strength represents the peak of the stress-strain curve and often is
- optical fibers in a single unit over a wide range of temperatures, and particularly at
- the elongation at break at 100°C is at least about 30%, and more preferably is
- the maximum tensile strength is at least about 40%. In further preferred embodiments, the maximum tensile strength
- At 100°C is at least about 2000 psi and the elongation at break at 100°C is at least
- the maximum tensile strength at 100°C is at least about
- 3000 psi and the elongation at break at 100°C is at least about 40%.
- the matrix material comprises a radiation cured composition.
- the matrix material comprises a radiation cured composition.
- a radiation curable composition comprising (a)
- methacrylate functionality is preferably a wholly aliphatic urethane acrylate oligomer.
- the oligomer is based on an aliphatic polyether polyol, which is reacted
- Silicon-containing polyether polyol backbones are suitable.
- the oligomer may be based on any combination of polyol backbones
- backbones include hydrocarbon polyols, polycarbonate polyols, polyisocyanate
- polystyrene resin and mixtures of these.
- polyether polyol backbones are preferred,
- Polyols which are less suitable include polyester or epoxy backbones owing to yellowing and/or poor hydrolytic stability.
- the oligomeric component may contain
- a representative polyether polyol is based on a straight chain or branched
- the polyether polyol may
- M n molecular weight (M n ), as determined by vapor pressure osmometry, per ASTM
- polyether polyols include but are
- polymethylene oxide not limited to polymethylene oxide, polyethylene oxide, polypropylene oxide,
- hydrocarbon polyols which may be used include, but are not
- polycarbonate polyols include but are not limited to the
- reaction products of dialkyl carbonate with an alkylene diol optionally copolymerized
- the polyisocyanate component is preferably non-aromatic as oligomers based
- Non- aromatic polyisocyanates of from 4 to 20 carbon atoms are preferably employed.
- Suitable saturated aliphatic polyisocyanates include but are not limited to isophorone
- omega '-dipropylether diisocyanate 1,4-cyclohexyl diisocyanate; 1,3-cyclohexyl
- aromatic polyisocyanates may be used; however, long term stability on aromatic polyisocyanates
- An end capping monomer is typically employed to provide at least one
- terminated compounds which may be used as the end capping monomers include but
- hydroxyalkyl acrylates or methacrylates such as hydroxyethyl
- prefe ⁇ ed end capping monomer is hydroxyethyl acrylate or hydroxyethyl
- oligomers which are suitable for use in this invention include, but are not limited, to
- the oligomer has a number average
- tripropylene glycol diacrylate as diluent.
- PURELAST® oligomers include 534, 536, and 538 (trifunctional polyether urethane
- Additional oligomers include 566, 566A, 569, 569A, 586, 586A, 590, 590A, 595,
- the matrix material comprises reactive unsaturated monomer. While the inventors do not intend to be limited by theory, it is believed that the reactive
- unsaturated monomer contributes to the desired combination of maximum tensile
- monomer comprises acrylate or methacrylate monomer or a mixture thereof, alone or
- the reactive unsaturated monomer comprises a mixture of at least two reactive
- monomers and more preferably comprises at least two monomers selected from the
- the reactive monomer mixture comprises a mixture of at least one of (i)
- Unsaturated cross-linking monomers are known in the art and may comprise
- cross-linking monomers include, but are not limited to, trimethyloyl propane triacrylate, alkoxylated derivatives thereof, glycerol
- alkoxytriacrylates pentaerythritol-containing acrylates such as pentaerythritol
- dimethacrylates dimethacrylates, alkoxylated derivatives thereof, melamine acrylate and methacrylate
- the monomer comprises an isocyanurate monomer. More preferably, the cross-linking
- monomer comprises a triacrylate or a trimethacrylate of an isocyanurate compound.
- Trifunctional monomers and particularly a triacrylate of trishydroxyethyl
- isocyanurate are prefe ⁇ ed cross-linking monomers.
- Unsaturated hydrogen-bonding monomers are also known in the art and
- urethane monoacrylates include, but are not limited to, urethane monoacrylates, including, but not
- N- vinyl formamide N-vinyl-2-caprolactam and the like are also suitable.
- Examples include, but are not limited to isobornyl acrylate, isobornyl methacrylate,
- the reactive monomer mixture comprises
- hindrance monomer comprises at least about 20 percent by weight of the reactive
- An optional component of the matrix composition is a photoinitiator.
- composition if it is to be ultraviolet cured, a photoinitiator is needed; if it is to be
- the material may comprise no or substantially no
- the photoinitiator when used in a ultraviolet cure embodiment, the photoinitiator, when used in a UV cure embodiment, the photoinitiator, when used in a UV cure embodiment, the photoinitiator, when used in a UV cure embodiment, the photoinitiator, when used in a UV cure embodiment, the photoinitiator, when used in a UV cure embodiment, the photoinitiator, when used in a UV cure embodiment, the photoinitiator, when used in a
- photoinitiator must itself be thermally stable, non-yellowing, and efficient. Suitable
- photoinitiators include, but are not limited to, hydroxycyclohexylphenyl ketone
- prefe ⁇ ed photoinitiator is hydroxycyclohexylphenyl ketone, such as is
- compositions may be varied as suitable to obtain the recited maximum tensile strength
- the radiation curable compositions comprise, by
- the radiation curable compositions are about 10% of the photoinitiator. More preferably, the radiation curable compositions
- urethane acrylate oligomer comprise, by weight, from about 40% to about 80% of the urethane acrylate oligomer, from about 10% to about 50% of the reactive unsaturated monomer, and from about
- compositions comprising, by weight, from about 40% to about 70% of the urethane
- acrylate oligomer from about 30% to about 60% of the reactive unsaturated monomer, and from about 1% to about 6% of the photoinitiator.
- the matrix material may also comprise one or more optional conventional materials
- One optional class of components includes various stabilizers or
- antioxidants To improve shelf life (storage stability) of the uncured coating, as well
- one or more 1/11406 stabilizers or antioxidants may be included in the composition.
- suitable 1/11406 stabilizers or antioxidants may be included in the composition.
- stabilizers include organic phosphites; hindered phenols; mixtures thereof; and the
- antioxidants which can be used include propionates
- hydrocinnamates such as thiodiethylene bis (3,5-di-tert-butyl-4-hydroxy)
- hydrocinnamate and tetrakis [methylene (3,5-di-tert-butyl-4-hydroxyhydrocinnamate)]
- a stabilizer or antioxidant when used, it may be incorporated in an
- the weight of the composition Preferably, it is included in the range from about
- Desirable properties of a stabilizer or antioxidant include non-migration.
- a preferred embodiment of a stabilizer or antioxidant include non-migration.
- antioxidant is thiodiethylene bis (3,5-di-tert-butyl-4'-hydroxy) hydrocinnamate, such
- Additional optional components for use in the radiation curable compositions include additives for reducing the coefficient of friction of the cured compositions
- Such additives are known in the art and may include, but are not limited to, silicone materials, including silicone acrylates and silicone methacrylates, fluorocarbons and
- optical fiber ribbons are manufactured in accordance with conventional
- a plurality of inked and coated optical fibers are typically
- coated optical fibers are disposed in a desired relationship to each other, to form a
- focus lamp is typically employed for curing although other conventional apparatus
- the matrix composition when cured, adheres to
- the ink or outer coating layer of the fibers during use and provides for a coating
- Such substrates include, but are not limited to, glass,
- radiation curable compositions A and B are prepared
- composition A the reactive monomer mixture comprises 25 parts by weight of
- IBOA isobornyl acrylate
- composition B the reactive monomer mixture comprises 20 parts by weight of the
- the compositions are cured by exposure to ultraviolet radiation (0.7
- compositions and the properties are set forth in the Table.
- a comparative composition C is also subjected to similar measurements.
- the comparative composition C comprises about 65 parts by
- composition C the reactive monomer mixture comprises 25 parts by
- HDODA diacrylate
- compositions A and B exhibit the desired combination of maximum tensile
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Reinforced Plastic Materials (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/807,155 US6501890B1 (en) | 1999-08-09 | 2000-08-09 | Heat strippable optical fiber ribbons |
BR0006990-6A BR0006990A (en) | 1999-08-09 | 2000-08-09 | Hot Extractable Fiber Optic Tapes |
AU66276/00A AU6627600A (en) | 1999-08-09 | 2000-08-09 | Heat strippable optical fiber ribbons |
CA002345061A CA2345061A1 (en) | 1999-08-09 | 2000-08-09 | Heat strippable optical fiber ribbons |
EP00953905A EP1119789A1 (en) | 1999-08-09 | 2000-08-09 | Heat strippable optical fiber ribbons |
JP2001516003A JP2003506754A (en) | 1999-08-09 | 2000-08-09 | Thermal stripping optical fiber ribbon |
NO20011626A NO20011626D0 (en) | 1999-08-09 | 2001-03-30 | Heat-stripping optical fiber tapes |
HK02103738.9A HK1041926A1 (en) | 1999-08-09 | 2002-05-17 | Heat strippable optical fiber ribbons |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14788199P | 1999-08-09 | 1999-08-09 | |
US60/147,881 | 1999-08-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001011406A1 true WO2001011406A1 (en) | 2001-02-15 |
Family
ID=22523309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/021768 WO2001011406A1 (en) | 1999-08-09 | 2000-08-09 | Heat strippable optical fiber ribbons |
Country Status (13)
Country | Link |
---|---|
US (1) | US6501890B1 (en) |
EP (1) | EP1119789A1 (en) |
JP (1) | JP2003506754A (en) |
KR (1) | KR100483980B1 (en) |
CN (1) | CN1188724C (en) |
AU (1) | AU6627600A (en) |
BR (1) | BR0006990A (en) |
CA (1) | CA2345061A1 (en) |
HK (1) | HK1041926A1 (en) |
NO (1) | NO20011626D0 (en) |
TR (1) | TR200101022T1 (en) |
TW (1) | TWI260439B (en) |
WO (1) | WO2001011406A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000060394A1 (en) * | 1999-04-01 | 2000-10-12 | Borden Chemical, Inc. | Optical fiber ribbons containing radiation cured encapsulating materials |
US6879761B2 (en) * | 2001-07-03 | 2005-04-12 | Alcatel | Multi axis ribbon |
US20030081929A1 (en) * | 2001-10-30 | 2003-05-01 | Lochkovic Gregory A. | Optical ribbon separation methods and tools therefor |
US7257299B2 (en) * | 2005-11-30 | 2007-08-14 | Corning Incorporated | Optical fiber ribbon with improved stripability |
US7289706B2 (en) * | 2005-11-30 | 2007-10-30 | Corning Incorporated | Optical fiber ribbon with improved stripability |
DE102008061700B3 (en) * | 2008-12-11 | 2010-02-18 | Jt Optical Engine Gmbh + Co. Kg | Fiber stripping method, involves dipping fiber bundle into chemical solvent upto ingates of fibers for preset time period to pre-weaken of connection between shells and cores of fibers, and removing pre-weakened shell sections from cores |
EP2769255A4 (en) * | 2011-10-19 | 2015-05-27 | Chromis Fiberoptics Inc | Monolithic polymer optical fiber ribbon |
KR20190017445A (en) | 2017-08-11 | 2019-02-20 | 노남섭 | Auto scrubbing device |
KR20200026516A (en) | 2018-09-03 | 2020-03-11 | 현대자동차주식회사 | Optical fiber with reducing light bias for lighting and manufacturing method of the same |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0636913A1 (en) * | 1993-01-14 | 1995-02-01 | Sumitomo Electric Industries, Ltd. | Core of tape-like optical fiber |
US5561730A (en) * | 1995-02-23 | 1996-10-01 | Siecor Corporation | Cable containing fiber ribbons with optimized frictional properties |
WO1997018493A1 (en) * | 1995-11-13 | 1997-05-22 | Lightguide Materials, Inc. | Matrix compounds for forming optical fiber ribbons |
US5881194A (en) * | 1989-06-27 | 1999-03-09 | Duecker; David Clarke | Radiation-cured matrix material; optical fiber ribbons containing same; and process for preparing said optical fiber ribbons |
EP0992465A1 (en) * | 1998-10-01 | 2000-04-12 | Lucent Technologies Inc. | Coated optical fiber with improved strippability |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5426166A (en) * | 1994-01-26 | 1995-06-20 | Caschem, Inc. | Urethane adhesive compositions |
DE19535936A1 (en) * | 1995-09-27 | 1997-04-03 | Basf Lacke & Farben | Acrylated polyether polyol and its use for radiation-curable formulations |
US5761363A (en) | 1996-03-07 | 1998-06-02 | Siecor Corporation | Optical fiber ribbon which is strippable and peelable |
US5744514A (en) * | 1996-10-31 | 1998-04-28 | Borden Chemical, Inc. | Coated optical fibers having a reduced content of extractable and volatile material |
JP2000507369A (en) * | 1997-01-24 | 2000-06-13 | ボーデン・ケミカル・インコーポレーテッド | Coated optical fiber having a peelable primary coating and method of making and utilizing the fiber |
US6334016B1 (en) * | 1999-06-30 | 2001-12-25 | Alcatel | Optical fiber ribbon matrix material having optimal handling characteristics |
-
2000
- 2000-08-09 BR BR0006990-6A patent/BR0006990A/en not_active Application Discontinuation
- 2000-08-09 JP JP2001516003A patent/JP2003506754A/en active Pending
- 2000-08-09 WO PCT/US2000/021768 patent/WO2001011406A1/en active Application Filing
- 2000-08-09 KR KR10-2001-7004398A patent/KR100483980B1/en active IP Right Grant
- 2000-08-09 EP EP00953905A patent/EP1119789A1/en not_active Withdrawn
- 2000-08-09 AU AU66276/00A patent/AU6627600A/en not_active Abandoned
- 2000-08-09 TW TW089116043A patent/TWI260439B/en not_active IP Right Cessation
- 2000-08-09 CN CNB008016488A patent/CN1188724C/en not_active Expired - Lifetime
- 2000-08-09 US US09/807,155 patent/US6501890B1/en not_active Expired - Lifetime
- 2000-08-09 TR TR2001/01022T patent/TR200101022T1/en unknown
- 2000-08-09 CA CA002345061A patent/CA2345061A1/en not_active Abandoned
-
2001
- 2001-03-30 NO NO20011626A patent/NO20011626D0/en not_active Application Discontinuation
-
2002
- 2002-05-17 HK HK02103738.9A patent/HK1041926A1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5881194A (en) * | 1989-06-27 | 1999-03-09 | Duecker; David Clarke | Radiation-cured matrix material; optical fiber ribbons containing same; and process for preparing said optical fiber ribbons |
EP0636913A1 (en) * | 1993-01-14 | 1995-02-01 | Sumitomo Electric Industries, Ltd. | Core of tape-like optical fiber |
US5561730A (en) * | 1995-02-23 | 1996-10-01 | Siecor Corporation | Cable containing fiber ribbons with optimized frictional properties |
WO1997018493A1 (en) * | 1995-11-13 | 1997-05-22 | Lightguide Materials, Inc. | Matrix compounds for forming optical fiber ribbons |
EP0992465A1 (en) * | 1998-10-01 | 2000-04-12 | Lucent Technologies Inc. | Coated optical fiber with improved strippability |
Non-Patent Citations (1)
Title |
---|
See also references of EP1119789A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2345061A1 (en) | 2001-02-15 |
NO20011626L (en) | 2001-03-30 |
CN1188724C (en) | 2005-02-09 |
TR200101022T1 (en) | 2001-08-21 |
AU6627600A (en) | 2001-03-05 |
TWI260439B (en) | 2006-08-21 |
BR0006990A (en) | 2004-06-29 |
HK1041926A1 (en) | 2002-07-26 |
CN1327541A (en) | 2001-12-19 |
JP2003506754A (en) | 2003-02-18 |
NO20011626D0 (en) | 2001-03-30 |
EP1119789A1 (en) | 2001-08-01 |
KR100483980B1 (en) | 2005-04-18 |
US6501890B1 (en) | 2002-12-31 |
KR20010088850A (en) | 2001-09-28 |
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