Optical cable including rollable optical fiber ribbon

An optical cable including a rollable optical fiber ribbon is provided. The optical cable includes a plurality of loose tubes, and a plurality of rollable optical fiber ribbons are disposed inside each loose tube. A plurality of loose tubes are disposed at the periphery of the central strength member. The length of each rollable optical fiber ribbon disposed inside the loose tube is 1% or more longer than the length of the corresponding loose tube. Compared to an optical cable including a conventional ribbon, the optical fiber has a higher density and preferred transmission performance.

HIGH DENSITY,LOW DIAMETER CABLE WITH ROLLABLE FIBER OPTIC RIBBON

Cable traction terminal structure

An optical cable traction terminal structure includes: a helically wound inner tube that houses an optical cable; and a flexible outer tube disposed on an outer circumferential surface of the helically wound inner tube, wherein a part of the flexible outer tube enters an inside of a groove on the outer circumferential surface of the helically wound inner tube.

OPTICAL FIBER CABLE

Optical fiber cable for sound wave sensing

An optical fiber cable for sound wave sensing that uses a straight optical fiber and is capable of suppressing directivity is provided. The optical fiber cable for sound wave sensing includes a cover part (10) that is capable of covering a straight cable core (11) and is provided with a sound wave refraction part (12) which refracts sound waves made incident roughly perpendicularly to a longitudinal direction of the cable core (11) and makes the sound waves be incident diagonally to the longitudinal direction of the cable core (11). The cover part (10) includes a gap filling part (23) which covers the sound wave refraction part (12).

OPTICAL FIBER CABLE WITH ELONGATED STRENGTH MEMBERS AND MANUFACTURING METHOD THEREOF

The present disclosure provides an optical fiber cable (100, 200, 300) comprising one or more tubes (104) enclosing at least one optical fiber (102), a sheath (106) surrounding the one or more tubes (104) and one or more strength members (108) embedded in the sheath (106). In particular, the one more strength members (108) are in a pre-elongated configuration and are elongated by 0.02% - 0.1% in the pre-elongated configuration. Additionally, the one or more strength members (108) are embedded at a tension of 1.5-8 kgf and have an elongation at break less than or equal to 2%. Further, the optical fiber cable (100, 200, 300) has a tensile break load of less than 2100N.

OPTICAL FIBER ASSEMBLIES, AND METHODS AND APPARATUS FOR THE MANUFACTURE THEREOF

Methods for manufacturing cables and cables assemblies include providing powder particles within a tube extruded about optical fiber. The particles may be accelerated so that as they strike the tube and mechanically attach to the tube.

OPTICAL FIBER CABLE

FLAME-RETARDANT AIR JETTED MICRO-CABLE

Flexible, non-preferential bend jackets for optical fiber cables

Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface in which the inner surface defines a central bore along a longitudinal axis of the optical fiber cable and the outer surface defines the outermost extent of the cable. The optical fiber cable also includes at least one access feature disposed in the cable jacket between the inner surface and the outer surface. Further included are a first plurality of optical fiber bundles. Each optical fiber bundle includes a second plurality of optical fiber ribbons that has a third plurality of optical fibers arranged in a planar configuration. The optical fiber cable bends uniformly in all directions transverse to the longitudinal axis of the optical fiber cable.

HIGH DENSITY, LOW DIAMETER CABLE WITH ROLLABLE FIBER OPTIC RIBBON

A high density, low diameter optical fiber ribbon cable is provided. The cable includes a polymeric outer cable jacket and a plurality of flexible optical fiber ribbons. The cable includes a relatively high number of optical fibers despite a relatively small outer diameter. The flexible optical fiber ribbons are located within the cable jacket without buffer tubes, central strength elements and/or gel materials.

OPTICAL FIBER CABLE AND OPTICAL FIBER UNIT

An optical fiber cable includes a plurality of optical fibers, a plurality of water-absorbent fibers, and a sheath covering a periphery of the plurality of optical fibers and the plurality of water-absorbent fibers. A ratio of areas of the water-absorbent fibers to an area of an accommodating portion in an inner side of the sheath in a cross section orthogonal to a longitudinal direction of the optical fiber cable is 1% or more and 5% or less, and a maximum value of an area of a gap portion surrounded by the optical fibers in the cross section is 1.0 mm2or less.

SZ STRAND RETENTION OF ASSYMETRICAL OPTICAL FIBER RIBBON UNITS BY A CONFORMING TENSIONED ELASTOMER SHELL

An optical fiber cable includes a central element, extending along a longitudinal axis of the optical fiber cable, and a plurality of routable subunits, each routable subunit having a rigidly stranded ribbon stack and a tight buffer layer surrounding the ribbon stack, wherein the subunits are SZ-stranded around the central element to form a cable core. A binder film continuously and contiguously surrounds the plurality of routable subunits along the longitudinal axis and a cable sheath continuously and contiguously surrounds the binder film along the longitudinal axis, wherein the cable sheath has an inside surface and an outside surface, the inside surface defining an elliptical shape and the outside surface defining a generally circular shape ...

Optical Fiber Cable Having A Deformable Coupling Element

Disclosed is an optical fiber cable that includes optical fibers and a deformable coupling element enclosed within a buffer tube. The coupling element is formed from a deformable yet substantially incompressible material that is capable of releasably and intermittently coupling the optical fibers to the buffer tube in various orientations. The design of the coupling element layer permits coupling of the optical fibers to the buffer tube without the use of a compressive cushioning layer and yet permits localized movement the optical fibers relative to the buffer tube to account for disparate thermal expansion and to accommodate optical fiber placement.

Methods of controlling jacket bonding with cable armor and water blocking at strength members

An armored cable having a polymer covering where the bond between the armor and the covering is controlled by introducing particulate matter at the interface of the armor and covering. A filler material is applied to the exterior surfaces of the cable strength elements in order to inhibit the formation of voids in the polymer covering that would otherwise promote water migration along the cable.

Pipe made of synthetic resin having a plurality of internal tubes

The present invention relates to a pipe made of synthetic resin having a plurality of internal tubes, wherein silicone coating layers are formed on the respective inner circumferential surfaces of the plurality of internal tubes which are accommodated in an external tube, such that long optical fibers or electrical wires or the like inserted in the same can be readily and easily accommodated while water repellency is maintained, and failure to fuse or deformation of any of the side surfaces of the internal tubes, which are fused to the inner circumferential surface of the external tube, can be prevented when the internal tubes are formed integrally on the external tube, and the plurality of internal tubes can be stably inserted into and joined by fusing onto the inner circumferential surface of the external tube, and deformation due to temperature differences between the external tube and the internal tubes during cooling can be prevented while the internal tubes are inserted into and joined by fusing onto the inner circumferential surface of the external tube in a hermetic state.

Strength member system for fiber optic cable

A fiber optic cable includes a strength member, a layer of polyethylene contacting the exterior of the strength member, and a yarn wound around the strength member. The yarn is between the strength member and the layer of polyethylene.

Outdoor armored fiber optical cable

The present invention provides an outdoor armored fiber optical cable. By arranging water-blocking yarn parallelly to the optical fiber unit in armoring layer, or additionally arranging the water-blocking yarn in the reinforcing layer, ensure the cable no water leakage, and overall water resistance performance is enhanced. The armoring layer is a spiral steel tube structure, so that the fiber optical cable has excellent bending property, thus the present invention is particularly suitable for harsh outdoor environments.

Fiber optic ribbon cable having enhanced ribbon stack coupling and methods thereof

A fiber optic ribbon cable includes a jacket of the cable, the jacket having a cavity defined therein, an optical element including an optical fiber and extending within the cavity of the jacket, and a dry water-blocking element extending along the optical element within the cavity. The dry water-blocking element is wrapped around the optical element with at least a portion of the dry water-blocking element disposed between another portion of the dry water-blocking element and the optical element, thereby defining an overlapping portion of the dry water-blocking element. The optical element interfaces with the overlapping portion to provide direct or indirect coupling between the optical element and the jacket.

Rollable ribbon fibers with water-swellable coatings

A fiber-optic cable having optical fibers that are arranged as a rollable ribbon. Water-swellable material (e.g., superabsorbent liquid, superabsorbent powder, superabsorbent adhesive, etc.) is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials. The rollable ribbon is surrounded by a tube, with a dielectric strength member positioned external to the tube and substantially parallel to the tube. A jacket, with a ripcord along a substantial length of the jacket, surrounds the tube. Also taught is a process for manufacturing a rollable-ribbon fiber-optic cable, in which a water-swellable material is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials.

Preconnectorized cable assemblies for indoor/outdoor/datacenter applications

A configurator design tool is provided to facilitate the manufacture of pre-configured multi-fiber optical cable and loaded optical fiber cable storage reels. The configurator design tool also facilitates the configuration of fiber-optic data centers or other types of fiber-optic infrastructure. The present disclosure also contemplates methodology for manufacturing pre-configured multi-fiber optical cable and loaded optical fiber cable storage reels, and for configuring fiber-optic data centers or other types of fiber-optic infrastructure. Additional embodiments relate to contemplated pre-configured multi-fiber optical cable loaded optical fiber cable storage reels, and to fiber-optic data centers or other types of fiber-optic infrastructures.

Optical cable for sensing, methods of manufacture thereof and articles comprising the same

where d is the amount of optical fiber clearance for free movement within the loose tube, D is an average pitch diameter of the plurality of cable sensors and p is an average pitch length of a helical turn of the plurality of cable sensors wound around the central strength member.

Connector and connector assembly

A female connector is connected to a male connector having a cylindrical hood portion open in the longitudinal direction and housing a plurality of terminals. The male connector has a holding portion holding a plurality of terminals arranged inside the hood portion when the female connector is connected to the male connector, a seal interposed between the outer surface of the holding portion and the inner surface of the hood portion, and a slider arranged along the outer surface of the hood portion. The slider is able to slide in the transverse direction and the sliding action causes the hood portion to be engaged so that force is applied to the hood portion in the direction in which the male connector connects to the female connector. A pressing portion is formed on the slider to press the hood portion into the holding portion.

Fiber optic distribution cables and structures therefor

A fiber optic distribution cable includes a jacket defining an exterior of the fiber optic distribution cable and a plurality of optical fibers extending through a cavity of the jacket. The jacket has an access location with a single opening formed in the jacket that extends to the cavity. A distribution optical fiber of the plurality of optical fibers extends through and protrudes from the single opening in the jacket at the access location. The length of the distribution optical fiber is at least 5/4 times the length of the single opening.

Fiber-Optic Strength Member Components for use in Outer Strength Member Layers

A cable containing at least one optical fiber in a strength member and methods for manufacturing the strength member and cable are provided. A cable may include a cable core and armor wire strength members that surround the cable core. One of the armor wire strength members that surround the cable core contains an optical fiber.

Optical Cables for Harsh Environments

An optical cable includes a plurality of optical fibers sealed within a metal tube, a polymer inner sheath surrounding the metal tube and operatively connected to the metal tube, and an outer sheath disposed over the polymer inner sheath.

System and method of fiber distribution

A closure ( 15 ) is installed at a network distribution point to facilitate upgrading a subscriber network ( 10 ) to extend optical fibers closer to the subscribers ( 18 ). The closure ( 15 ) may include active equipment to convert optical signals to electrical signals. The closure ( 15 ) enables a plug-and-play connection to the active equipment to facilitate installing and/or upgrading active equipment at the closure ( 15 ). The closure ( 15 ) also is expandable to enable drop cables (or other optical cable) to be routed from the closure ( 15 ) towards the subscribers ( 18 ).

Insulated conductor assembly and method of its manufacturing

An insulated conductor assembly is provided. The assembly comprises at least two insulated conductors, a jacket enclosing the at least two insulated conductors, and a filling compound arranged between the jacket and the at least two insulated conductors. The assembly comprises first sections, extending along the assembly, completely filled with the filling compound between the jacket and the at least two insulated conductors, and second sections, extending along the assembly, void of filling compound between the jacket and the at least two insulated conductors. Further a method of manufacturing an insulated conductor assembly and a manufacturing arrangement for manufacturing an insulated conductor assembly are provided.

Fiber optic connection assembly

A fiber optic connection assembly for fiber to the home, comprising: a fan-out member; a multi-fiber optical cable having a first end introduced into the fan-out member and a second end extending out of the fan-out member; a multi-fiber optic connector connected to the second end of the multi-fiber optical cable; a plurality of single-fiber optical cables each having a first end introduced into the fan-out member and spliced with a respective one of fibers of the multi-fiber optical cable and a second end extending out of the fan-out member; and a plurality of single-fiber optic connectors connected to the second ends of the single-fiber optical cables, respectively; a plurality of first fiber optic adapters mated with the plurality of single-fiber optic connectors, respectively; and a plurality of outer shields each constructed to receive the connector and the adapter of a respective single-fiber optical cable therein, wherein the outer shield is hermetically fitted on the connector and the adapter of the respective single-fiber optical cable to form a sealed inner chamber so as to prevent moisture or water from entering into the inner chamber.

Fire retardant optical fiber cable

An optical communication cable is provided. The optical communication cable includes a cable jacket and a plurality of optical fiber subunits surrounded by the cable jacket. Each optical fiber subunit includes a subunit jacket and a plurality of optical fibers located within the subunit passage. Each optical fiber includes an outer polymer buffer coating, such as a tight buffer coating. The outer cable jacket and/or the outer polymer buffer coating of the optical fibers is formed from a halogen containing polymer material including a fire retardant material, and the subunit jacket is formed from a polyolefin polymer material including a fire retardant material.

Optical Cable Connector

Methods, systems, and devices are disclosed for interconnecting two optical fibers using a protective insert, wherein the protective insert includes a connective segment that provides optical communication connection between the two optical fibers. Furthermore the protective insert includes two attachment mechanisms adjacent to the connective segment with each of the two attachment mechanisms adapted to removably attach one of the two optical fibers to the connective segment. Such a protective insert may be implemented inside a network interface device (NID) or with a wall-plate to be installed inside customer premises in a manner that allows a customer to easily interconnect a home network cable to an optical network terminal.

Optical fiber cable for sound wave sensing

An optical fiber cable for sound wave sensing that uses a straight optical fiber and is capable of suppressing directivity is provided. The optical fiber cable for sound wave sensing includes a cover part (10) that is capable of covering a straight cable core (11) and is provided with a sound wave refraction part (12) which refracts sound waves made incident roughly perpendicularly to a longitudinal direction of the cable core (11) and makes the sound waves be incident diagonally to the longitudinal direction of the cable core (11). The cover part (10) includes a gap filling part (23) which covers the sound wave refraction part (12).

Methods and systems for distributing fiber optic telecommunications services to local area

A fiber optic drop terminal assembly includes a housing, a spool and a fiber optic distribution cable. The housing has a first exterior surface and an oppositely disposed second exterior surface. A plurality of ruggedized adapters is mounted on the first exterior surface of the housing. The ruggedized adapters include a first port accessible from outside the housing and a second port accessible from inside the housing. The spool is engaged with the second exterior surface and includes a drum portion. The fiber distribution cable is coiled around the drum portion. The distribution cable includes a first end and an oppositely disposed second end. The second end is disposed inside the housing.

Filling composition for optical fiber cables

A composition comprises (A) a mineral oil having a viscosity from 32 cSt to 100 cSt at 40° C.; (B) a styrene-ethylene/propylene diblock copolymer; and (C) from 1 wt % to less than 5 wt % polystyrene having a weight average molecular weight (Mw) from 1,000 to 100,000. The composition is used as a filling composition in a buffer tube.

Rollable ribbon fibers with water-swellable coatings

A fiber-optic cable having optical fibers that are arranged as a rollable ribbon. Water-swellable material (e.g., superabsorbent liquid, superabsorbent powder, superabsorbent adhesive, etc.) is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials. The rollable ribbon is surrounded by a tube, with a dielectric strength member positioned external to the tube and substantially parallel to the tube. A jacket, with a ripcord along a substantial length of the jacket, surrounds the tube. Also taught is a process for manufacturing a rollable-ribbon fiber-optic cable, in which a water-swellable material is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials.

Fiber optic overhead ground wire cable

A ground wire with optical fibers is disclosed. The ground wire includes twisted optical modules in the form of plastic tubes that accommodate freely placed optical fibers and water-blocking gel, wherein water-blocking tape applied to twisted optical modules, which are enclosed in a steel tube, coated with an aluminum sheath. The aluminum sheath is helically wrapped with lays of wire. The technical result is provided by increased air tightness of the optical core and permissible crushing stresses.

Cable Comprising an Element Indicating Water Infiltration and Method Using Said Element

A cable includes an indicating element for detecting the infiltration of water into the cable and a method using such indicating element.

Single-mode optical fiber having automatic control heat source specifically produced for hydraulic seepage measurement

A single-mode optical fiber having an automatic control heat source specifically produced for hydraulic seepage measurement, sequentially includes a single-core optical fiber, an inner protective elastic layer, a heat insulation steel ring, an inner-layer filling protection ring, an elastic hard ring, and an anti-seepage heat insulation hard sleeve ring arranged from inside to outside. The single-core optical is connected to a plurality of outer circular sheathing protection pipes respectively, the outer circular sheathing protection pipes sequentially pass through the inner protective elastic layer, the heat insulation steel ring, the inner-layer filling protection ring and the elastic hard ring and are connected to the anti-seepage heat insulation hard sleeve ring, each outer circular sheathing protection pipe is filled with a drainage water storage cotton sleeve, the drainage water storage cotton sleeve is connected to a second filter screen, and the second filter screen is connected to a first filter screen externally.

Optical cable for terrestrial networks

An optical cable comprising an optical core and an external sheath surrounding the optical core, wherein the external sheath comprises an inner layer circumferentially enclosing the optical core and an outer layer circumferentially enclosing the inner layer and comprising at least one longitudinal cavity accessible from outside the external sheath and extending through at least a portion of the outer layer thickness. The inner and outer layers of the external sheath are made of a first material having a first tensile strength, while the cavities in the outer layer are filled with a second material having a second tensile strength lower than the first tensile strength.

Flat drop optical fiber cable

The present disclosure provides a flat drop optical fiber cable. The flat drop optical fiber cable includes one or more buffer tubes. The one or more buffer tubes extend substantially along a longitudinal axis of the flat drop optical fiber cable. The flat drop optical fiber cable includes a plurality of optical fiber ribbons. The flat drop optical fiber cable includes one or more water blocking tapes. The one or more water blocking tapes are positioned in the flat drop optical fiber cable in one or more arrangements. The flat drop optical fiber cable includes a cable sheath. The cable sheath encapsulates the one or more buffer tubes and the one or more water blocking tapes. The flat drop optical fiber cable includes a plurality of strength members.

Conductive elements in cable jackets and separators

A cable, of the twisted pair or fiber optic type, includes conductors for permitting patch cord tracing between ports. In the case of a twisted pair cable, the conductors may be embedded within, or attached to a surface of, a separator. Alternatively, in the case of a twisted pair cable, the conductors may be embedded within, or attached to a surface of, a jacket. In the case of a fiber optic cable, the conductors may be located amongst strength members. Alternatively, in the case of a fiber optic cable, the conductors may be embedded within, or attached to a surface of, a jacket.

High-density optical fiber ribbon with cladding-strengthened glass optical fibers in a common protective coating and fiber ribbon interconnects employing same

A high-density optical fiber ribbon is formed by two or more cladding-strengthened glass optical fibers each having an outer surface and that do not individually include a protective polymer coating. A common protective coating substantially surrounds the outer surfaces of the two or more cladding-strengthened glass optical fibers so that the common protective coating is common to the two or more cladding-strengthened glass optical fibers. A fiber ribbon cable is formed by adding a cover assembly to the fiber ribbon. A fiber ribbon interconnect is formed adding one or more optical connectors to the fiber ribbon or fiber ribbon cable. Optical data transmission systems that employ the fiber ribbon to optically connect to a photonic device are also disclosed. Methods of forming the cladding-strengthened glass optical fibers and the high-density optical fiber ribbons are also disclosed.

Multi loose tube ribbon cable

The present disclosure provides an optical fiber cable. The optical fiber cable includes at least one optical fiber ribbon stack. In addition, the at least one optical fiber ribbon stack includes a plurality of stacked ribbons. Further, each ribbon of the plurality of stacked ribbons includes a plurality of optical fibers. The plurality of optical fibers includes edge fibers. The edge fibers are defined as the at least one optical fiber having a mach number of at most 7.2 disposed at a first end and a second end of a first ribbon and a last ribbon of the plurality of stacked ribbons

Optical cable and manufacturing method

An optical cable including a load bearing core includes a longitudinally and radially extending slot housing at least one optical fibre, wherein the slot has a width providing a low clearance for the optical fibre(s) housed therein and preventing two optical fibres being stuck to one another; and the slot has a depth equal to or lower than a radius of the core.

Optical fibre distribution enclosure

Optical fibre distribution enclosure ( 1 ), comprising a housing base ( 40 ) and a housing cover ( 20 ), engageable with each other to form a housing of the enclosure ( 1 ), a slack fibre storage device ( 50 ), arranged within the housing when the housing base ( 40 ) and the housing cover ( 20 ) are engaged with each other, a tray holder ( 60 ), arranged within the housing when the housing base ( 40 ) and the housing cover ( 20 ) are engaged with each other, on which tray holder ( 60 ) one or more fibre-optic trays ( 70 ) can be mounted, characterized in that the housing base ( 40 ), the slack fibre storage device ( 50 ) and the tray holder ( 60 ) are integrally formed as one piece.

Methods and systems for distributing fiber optic telecommunications services to local area

A fiber optic drop terminal assembly includes a housing, a spool and a fiber optic distribution cable. The housing has a first exterior surface and an oppositely disposed second exterior surface. A plurality of ruggedized adapters is mounted on the first exterior surface of the housing. The ruggedized adapters include a first port accessible from outside the housing and a second port accessible from inside the housing. The spool is engaged with the second exterior surface and includes a drum portion. The fiber distribution cable is coiled around the drum portion. The distribution cable includes a first end and an oppositely disposed second end. The second end is disposed inside the housing.

Flooding composition with polytetrafluoroethyene

Provided is a flooding composition. The flooding composition includes in weight percent (wt %) based on the weight of the composition: (A) from 1 wt % to less than 5 wt % of a polytetrafluoroethylene (PTFE) powder; (B) a styrene-ethylene/propylene block copolymer; and (C) a mineral oil having a kinematic viscosity from 32 cSt to 100 cSt at 40° C. Also a fiber optic cable is provided. The fiber optic cable includes a buffer tube; at least one optical fiber in the buffer tube; and the flooding composition.

Fiber optic cable with flexible conduit

The present disclosure relates to a fiber optic cable that includes a plurality of internal optical fibers and a fiber optic cable portion. The fiber optic cable portion includes an outer jacket and an inner conduit, the inner conduit containing the plurality of optical fibers disposed therein. The fiber optic cable further includes a flexible conduit portion, wherein the flexible conduit portion has a proximal end and a distal end. The proximal end is secured to the fiber optic cable portion and the distal end has a terminating device. The terminating device at least partially encases the flexible conduit portion, and the plurality of optical fibers passes through the flexible conduit portion and the terminating device.

Predefined cylindrical enclosure for optical waveguide cable

The present disclosure provides an optical waveguide cable. The optical waveguide cable includes one or more optical waveguide bands positioned substantially along a longitudinal axis of the optical waveguide cable. Further, the optical waveguide cable includes a plurality of cylindrical enclosure substantially concentric to the longitudinal axis of the optical waveguide cable. The plurality of cylindrical enclosure includes a predefined cylindrical enclosure. Furthermore, the one or more optical waveguide bands include a plurality of light transmission elements. Moreover, the density of the predefined cylindrical enclosure is at most 0.935 gram per cubic centimeter. Also, the optical waveguide cable has a waveguide area factor about 44%. The one or more optical waveguide bands are coupled longitudinally with the predefined cylindrical enclosure. The predefined cylindrical enclosure is at a predefined diagonal distance of about 0.9 millimeter from the one or more optical waveguide bands.

Cable with an exoskeleton

A cable with a first jacket made from a plastic material and a second jacket made from a plastic material with a tensile strength greater than or equal to approximately 2,600 psi and tensile modulus greater than or equal to approximately 180,000 psi, which creates an exoskeleton for the cable.

Water-blocking systems including fibers coated with liquid radiation curable sap compositions

The present invention is directed to water-swellable, radiation curable compositions suitable for use in coating water-blocking fibers, such as optical fibers. The present invention is further directed to fibers, including optical fibers, which are coated with water-swellable exterior coatings that are configured to buckle and detach from the associated fiber to facilitate superior performance in longitudinal water-blocking testing. Also claimed and described are methods of applying such water-swellable coatings to optical fiber coatings. Further claimed and described are buffered bundles of fibers including at least one optical fiber that is coated with a water-swellable, radiation curable coating to ensure superior longitudinal water blocking performance.

Filler and multicore cable having same

The present invention relates to a filler and a cable having the same and, more particularly, to a filler and a multicore cable comprising a plurality of core portions, which comprises a conductor, and a protective layer that surrounds the core portions, the filler being provided between the core portions and the protective layer of the multicore cable, the filler being characterized by comprising: frame portions comprising a first frame portion and a second frame portion, which are rotated by predetermined angles towards both sides about the center portion thereof and then incised; and a support portion provided between the frame portions so as to connect the frame portions to each other.

Deployable Fiber Optic Cable with Partially Bonded Ribbon Fibers

A deployable fiber optic cable for pairing with a connector, the cable including a plurality of partially bonded ribbon fibers each being sized and configured to be rolled into a circular cross section; an elongate member forming a slotted core including a plurality of rounded slots for longitudinally surrounding the circular cross sections of a corresponding plurality of the plurality of partially bonded ribbon fibers; a plurality of rugged fiber tubes each located adjacent a corresponding one of the plurality of slots and wherein each of the plurality of rugged fiber tubes longitudinally surround a corresponding plurality of the plurality of partially bonded ribbon fibers; a plurality of water-blocking yarn members each surrounding a corresponding one of the plurality of rugged fiber tubes; a rugged outer jacket; and a yarn strength member located between the rugged outer jacket and the slotted core.

Recirculating powder applicator

A recirculating powder applicator includes an applicator body having an inlet on an upstream surface and an outlet on a downstream surface, wherein the inlet and outlet define a passage that extends transversely through the thickness of the applicator body, a powder conduit, an air inlet, an exhaust aperture located on one of the upstream or downstream surfaces, and a circulation chamber located on the interior of the applicator body. The powder conduit and air inlet are in fluid communication with the passage and the passage is in fluid communication with the circulation chamber. A method of applying powder to a substrate during a continuous process includes using a recirculating powder applicator.

Self-supporting overhead telecommunication/power cable

A self-supporting overhead telecommunication/power cable includes a supporting portion and a transmission portion mutually arranged according to a figure-8 configuration. The transmission portion includes at a central position thereof, an optical fibre conductor and, at a radially outer position with respect to the optical fibre conductor, electrical conductors stranded around the optical fibre conductor. Preferably, the electrical conductors are grouped into sub-units which are stranded around the optical fibre conductor to provide a mechanical protection thereto.

Heat activated gels for cable filling applications

Provided herein is a composition containing a hydrogenated blend of a semi-crystalline, selectively hydrogenated block copolymer, a selectively diblock copolymers lacking semi-crystalline blocks, and a low polarity fluid for cable filling applications. The block copolymer comprises blocks of semi-crystalline hydrogenated polybutadiene, blocks of poly(mono alkenyl arenes), and blocks of hydrogenated, non-crystalline conjugated dienes. The diblock copolymer comprises blocks of poly(mono alkenyl arenes) and blocks of non-crystalline poly(conjugated diene(s)). The compositions can be converted to non-flowable gels and find application as fillers for cables such as fiber optic cables.

Optical fiber and optical fiber ribbon

An optical fiber comprises a glass fiber; and a coating resin layer coating an outer periphery of the glass fiber, the coating resin layer comprises a cured product of an ultraviolet curable resin composition containing a urethane oligomer, a monomer, and a photopolymerization initiator, and the urethane oligomer contains a one-end non-reactive oligomer having a (meth)acryloyl group at one end and having an alkoxy group having 3 to 18 carbon atoms at the other end.

Optical Fiber Cable Having Raised Coupling Supports

Disclosed is an optical fiber cable that includes optical fibers and a deformable coupling element enclosed within a buffer tube. The coupling element is formed from a deformable yet substantially incompressible material and features a number of raised members projecting toward the optical fibers. The design of the coupling element layer permits coupling of the optical fibers to the buffer tube without the use of a compressive cushioning layer. This arrangement distributes the compressive force applied to discrete points along the outer perimeter of the optical fiber element.

Coupling Composition for Optical Fiber Cables

The present invention relates to a novel coupling composition that is used within optical fiber cables to protect optical fibers and to couple the optical fibers and the surrounding buffer tube casing. The present invention also relates to optical fiber cables that use the novel coupling composition.

Cable fill composition

A cable fill composition for an optical fiber cable, said cable fill composition comprising (i) a Fischer-Tropsch derived base oil; and (ii) a thickening system, wherein the thickening system comprises at least one block copolymer. The cable fill composition of the present invention provides improvements in rheological characteristics, low temperature properties, and colour stability properties, as well as minimizing the levels of additives such as antioxidants and pour point depressants which need to be used.

干管光纤组件、电缆、及其制造方法

光纤干管组件及其制造方法包括至少一光波导和管。管收容至少一光纤的至少一部分并由双峰聚合材料形成。管具有约10%或更小的平均椭圆度。在其它实施例中，形成管的双峰聚合材料具有约1.0g/10分钟或更小的熔体指数、在190℃具有约8cN到约35cN范围的熔体强度、和/或约7或更大的多分散性。另外，本发明的干管组件可形成电缆的一部分。

Filling materials for electrical and light waveguide communications cables

Disclosed are materials used to fill electrical and light waveguides transmitting communications cables to make them waterproof. The filling materials have superior waterproofing, dielectric and handling characteristics and are made from compounds of styrene-ethylene-butylene-styrene, styrene-butadiene-styrene or styrene-isoprene-styrene type block copolymers dissolved in paraffinic or naphthenic type mineral oils with a minimal content of aromatic hydrocarbons, inorganic hollow microspheres and, if desired, an additive such as low molecular weight polyethylene or glycerol hydroxy stearate.

用于光纤电缆缓冲管的高模量烯烃组合物

用于光纤电缆的湿缓冲管由一种组合物制成，基于所述组合物的重量，以重量百分比(wt％)计，所述组合物包含：(A)22‑49％聚丙烯(PP)，(B)50‑65％高密度聚乙烯(HDPE)，(C)7‑12％增容剂，基于所述增容剂的重量，以wt％计，所述增容剂包含：(1)30‑90％的包含乙烯‑丙烯(EP)共聚物、全同立构聚丙烯(iPP)和EP‑iPP二嵌段聚合物的烯烃嵌段复合物，和(2)10‑70％马来酸酐接枝HDPE(MAH‑g‑HDPE)；以及(D)0.05‑5.0％成核剂。

用于光纤电缆组件的聚合组合物

一种方法包括以下步骤：(a)将聚合物组合物共混，所述聚合物组合物包含：(i)按所述聚合物组合物的总重量计5wt％至45wt％的硅烷醇官能化聚烯烃；(ii)按所述聚合物组合物的总重量计55wt％至90wt％的聚对苯二甲酸丁二醇酯，所述聚合物组合物具有在250℃和2.16kg下21g/10min至35g/10min的溶体流动指数；(iii)缩合催化剂；和(iv)按所述聚合物组合物的总重量计0.5wt％至10wt％的羟基封端的聚(二甲基硅氧烷)；和(b)挤出所述聚合物组合物。

광학 섬유 케이블 구성요소를 위한 중합성 조성물

방법은 (a) (i) 중합성 조성물의 총 중량을 기준으로 5 wt% 내지 45 wt%의 실라놀-작용화된 폴리올레핀; (ii) 250℃ 및 2.16 kg에서 용융 흐름 지수가 21 g/10분 내지 35 g/10분인 중합성 조성물의 총 중량을 기준으로 55 wt% 내지 90 wt%의 폴리부틸렌 테레프탈레이트; (iii) 축합 촉매; 및 (iv) 중합성 조성물의 총 중량을 기준으로 0.5 wt% 내지 10 wt%의 히드록시 말단 폴리(디메틸실록산)를 포함하는 중합성 조성물을 블렌딩하는 단계; 및 (b) 중합성 조성물을 압출하는 단계를 포함한다.

遮水形光フアイバケ−ブル

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

用于电信电缆的注入混配物

本发明提供用于电信电缆的注入混配物。此类注入混配物含有聚合性填充剂和支化烯烃流体。支化烯烃流体具有每寡聚物分子平均至少1.5个次甲基碳和每一千个总碳至少40个次甲基碳。另外，支化烯烃流体中每分子的平均碳数是25到200。

防水型光フアイバケ−ブルの製造方法

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Ultraviolet-curing type resin composition

폴리실록산을 갖는 플러딩 조성물

본 개시내용은 플러딩 조성물을 제공한다. 일 실시형태에서, 플러딩 조성물은 조성물의 중량을 기준으로 한 중량 퍼센트(wt%)로 (A) 10 wt% 내지 45 wt%의 실란-그라프트된 폴리올레핀(Si-g-PO)을 포함한다. 플러딩 조성물은 또한 (B) 5 wt% 내지 60 wt%의 폴리α-올레핀 오일(PAO 오일), (C) 15 wt% 내지 90 wt%의 폴리실록산, 및 (D) 0.05 wt% 내지 0.2 wt%의 촉매를 포함한다.

一种微型柔性铠装直埋、管道用光缆及光缆生产工艺

本发明提供了一种微型柔性铠装直埋、管道用光缆及光缆生产工艺，涉及通信设备技术领域，本发明提供的微型柔性铠装直埋、管道用光缆包括：光纤、第一阻水层、微束管、第二阻水层、不锈钢保护层、加强层和护套；光纤的数量为多根，微束管套设于多根光纤外部，第一阻水层设于光纤与微束管之间，第二阻水层包裹于微束管的外部，不锈钢保护层包裹于第二阻水层的外部，不锈钢保护层、加强层和护套从内向外依次包裹设置。本发明提供的微型柔性铠装直埋、管道用光缆缓解了相关技术中光缆尺寸较大、柔韧性能较差等技术问题。

干管光纤组件、电缆、及其制造方法

光纤干管组件及其制造方法包括至少一光波导和管。管收容至少一光纤的至少一部分并由双峰聚合材料形成。管具有约10％或更小的平均椭圆度。在其它实施例中，形成管的双峰聚合材料具有约1.0g/10分钟或更小的熔体指数、在190℃具有约8cN到约35cN范围的熔体强度、和/或约7或更大的多分散性。另外，本发明的干管组件可形成电缆的一部分。

多光纤的光纤连接器

本发明提供了一种包括光纤线缆和光纤连接器的光纤线缆组件。所述线缆包括护套，所述护套具有限定长轴和短轴的细长横向剖面轮廓。所述线缆的加强件固定到连接器上。所述光纤连接器包括多光纤卡套，其限定与所述护套的长轴大致垂直的长轴和与所述护套的短轴大致垂直的短轴。某些类型的连接器包括：连接器本体，其限定沿着连接器本体的长度延伸的侧开口；多光纤卡套，其构造成通过侧开口横向插入所述连接器本体；以及盖，其在所述多光纤卡套已通过所述侧开口插入所述连接器本体之后安装在所述侧开口上。

? fiber optic cable with protective tube?

um cabo de fibra óptica inclui um conjunto de núcleo incluindo uma fibra óptica e um tubo através do qual a fibra óptica se estende de um tubo de proteção polimérico que rodeia o conjunto de núcleo, o material expansível com a água integrado com o tubo de proteção polimérico, e um revestimento que envolve o tubo de proteção polimérico. o tubo de proteção polimérico é perifericamente contínuo em torno do conjunto de núcleo, formando um circuito fechado contínuo quando visto em secção transversal, e contínua longitudinalmente ao longo do comprimento do cabo que é, pelo menos, 10 metros. o material expansível pela água está na forma de pó expansível com a água, as partículas de que são parcialmente encaixadas no tubo de proteção polimérico, de tal modo que uma porção das partículas é submersa no tubo de proteção polimérico e outra porção é exposta. um outro cabo de fibra óptica é divulgado, compreendendo um conjunto de núcleo que compreende uma fibra óptica e um tubo de proteção polimérico que rodeia o conjunto de núcleo. o tubo de proteção polimérico é perifericamente contínuo em torno do conjunto de núcleo, formando um circuito fechado contínuo quando visto em secção transversal, e contínua longitudinalmente ao longo do comprimento do cabo que é, pelo menos, 10 metros. o tubo de proteção polimérico compreende segmentos de aumento de volume de água que se estendem longitudinalmente ao longo do tubo de proteção de suporte polimérico em pó expansível com a água e segmentos desprotegidos entre os segmentos de aumento de volume de água, os segmentos que se prolongam desprotegidos radialmente ao longo do perímetro do tubo de proteção.

Structure and manufacturing method of loose tube optical cable using ribbon optical fiber

1. 청구범위에 기재된 발명이 속한 기술분야 본 발명은 다수의 리본광섬유층을 바인더(binder)로 묶어서 루즈튜브(loose tube)의 내부에 실장하므로서 광섬유의 심수를 최대한 증가시킬 수 있는 리본 광섬유를 이용한 루즈튜브(loose tube)형 광케이블의 구조 및 제조 방법에 관한 것이다. 2. 발명이 해결하려고 하는 기술적 과제 본 발명은 루즈튜브(loose tube)내에 2개 이상의 리본광섬유를 실장할 수 있는 루즈튜브(loose tube)형 광케이블의 구조 및 제조 방법을 제공하는데 있다. 3. 발명의 해결방법의 요지 본 발명은 리본광섬유가 다수의 유니트(unit)로 실장될때 각각의 리본광섬유를 구별하기 위한 바인더(binder)와, 상기 리본광섬유에 수분 침투를 방지하는 젤리와, 상기 리본광섬유를 내장하기 위한 루즈튜브(loose tube)와, 외부로부터 수분 침투를 방지하는 방수테이프와, 외부의 기계적 또는 환경적 영향으로부터 상기 루즈튜브(loose tube)를 보호하기 위한 스틸-테이프(steel tape)와, 상기 광케이블을 외부의 기계적 영향으로부터 보호하기 위한 인장선으로 구성된 것이다. 4. 발명의 중요한 용도 본 발명은 다수의(2개 이상) 리본광섬유를 다양한 색상의(binder)로 감아서 루즈튜브(loose tube)의 내부에 실장시키기 때문에 상기 각각의 리본광섬유를 쉽게 판별할 수 있으며, 또한 상기 루즈튜브(loose tube)내에 최대한으로 리본광섬유를 실장할 수 있기 때문에 광섬유의 심수를 300심 이상으로 증가 가능하며, 또한 상기 리본광섬유가 여러개의 유니트(unit)로 분리되어 있기 때문에 상기 리본광섬유의 벤딩 손실을 최소화시킬 수 있으며, 이로인해 상기 광케이블의 벤딩 특성을 향상시킬 수 있으며, 또한 한개의 루즈튜브(loose tube)내에 다수의 리본광섬유를 실장할 수 있기 때문에 상기 광케이블의 외경을 최소화 할 수 있으며, 상기 리본광섬유는 하나의 루즈튜브(loose tube)내에 고정되어 있기 때문에 상기 광섬유 심선 접속 작업을 용이하게(쉽게)할 수 있는 효과가 있다.

광접속함

본 발명은 피딩 케이블을 인입하여 광처리모듈에서 처리한 후 아웃 케이블로 인출하며 그 내부의 수용공간으로 경유 케이블을 경유시키며, 각각의 케이블이 장착상태 또는 장착과정에서의 수밀성, 작업성 및 가격 경쟁력이 향상된 광접속함에 관한 것이다.

一种易开剥高密度全干式光缆

本实用新型涉及一种易开剥高密度全干式光缆，包括有外护套和缆芯，其特征在于所述的缆芯为全干式缆芯，包括有外护套和缆芯，其特征在于所述的缆芯为全干式层绞式缆芯，所述的缆芯包括有易开剥的松套管，松套管间设置非金属辅助加强元件，松套管内敷设有光通信单元和阻水纱，缆芯内敷设有阻水纱，缆芯外包覆有阻水层，最外层为外护套。本实用新型光纤密度高，满足高密度网络需求，提高了敷设资源的利用率，同时直径小，重量轻，光缆直径仅为传统光缆的约1/2，并具有优异的机械性能，可用于管道和自承式架空敷设；护套和松套管易开剥，使用续接方便，提高了施工效率；全介质结构，具有防电磁干扰、防雷击的性能。

FILLING COMPOSITION CONTAINING A BIOLOGICAL-BASED LIQUID

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 104 051 A (51) МПК H01B 7/285 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019104051, 15.06.2017 (71) Заявитель(и): ДАУ ГЛОУБЛ ТЕКНОЛОДЖИЗ ЛЛК (US) Приоритет(ы): (30) Конвенционный приоритет: 29.07.2016 US 62/368,282 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.02.2019 R U (43) Дата публикации заявки: 13.08.2020 Бюл. № 23 (72) Автор(ы): ЭССЕГХИР Мохамед (US), СЕВЕН Карл (US), ЧЖАН Сяодун (US), ЦЗИНЬ И (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/022210 (01.02.2018) R U (54) ЗАЛИВОЧНАЯ КОМПОЗИЦИЯ, СОДЕРЖАЩАЯ ЖИДКОСТЬ НА БИОЛОГИЧЕСКОЙ ОСНОВЕ (57) Формула изобретения 1. Кабель, содержащий: (A) по меньшей мере одну проволоку; и (B) заливочную композицию, содержащую, в процентах по массе (% мас.), в расчете на массу композиции: (1) 10–80% масс. первого компонента, содержащего полиолефиновый эластомер, состоящий только из α-олефиновых остатков; а также (2) 20–90% масс. второго компонента, содержащего жидкость на биологической основе. 2. Кабель по п. 1, отличающийся тем, что компонент жидкости на биологической основе указанной заливочной композиции имеет общий уровень ненасыщенности, составляющий более чем 40%. 3. Кабель по любому из предшествующих пунктов, отличающийся тем, что компонент жидкости на биологической основе указанной заливочной композиции получен из овощей или водорослей. 4. Кабель по любому из предшествующих пунктов, отличающийся тем, что компонент жидкости на биологической основе указанной заливочной композиции не содержит какого-либо масла на нефтяной основе. 5. Кабель по любому из предшествующих пунктов, отличающийся тем, что компонент жидкости на биологической основе указанной заливочной композиции используют в Стр.: 1 A 2 0 1 9 1 0 4 0 5 1 A Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр. 1, секция 1, этаж 3, ЕВРОМАРКПАТ 2 0 1 9 1 0 4 0 5 1 US 2017/037616 (15.06.2017) 2 0 1 9 1 0 4 0 5 1 R U A ...

Filling composition for fiber optic cables

조성물은 (A) 40℃에서 32 cSt 내지 100 cSt의 점도를 갖는 미네랄 오일; (B) 스티렌-에틸렌/프로필렌 디블록 코폴리머; 및 (C) 1 중량% 내지 5 중량% 미만의 1,000 내지 100,000의 중량평균 분자량(M w )을 갖는 폴리스티렌을 포함한다. 본 조성물은 버퍼 튜브에서 충전 조성물로서 사용된다.

Filling material for electric cable

A cable fill composition comprising a paraffinic oil, a styrene-ethylene butylene-styrene block copolymer, and a linear polyethylene wax having an average molecular weight in the range of from about 1000 to 1500, whereby an improved drip point of the composition is obtained.

Ribbon-Tube Type Optical Cable

본 발명은 리본 튜브형 광케이블에 관한 것이다. 구체적으로, 본 발명은 루즈 튜브(loose tube) 내에 수용된 광섬유 리본의 응력(stress)으로 인한 광손실을 최소화하는 동시에 외경 및 무게를 최소화할 수 있는 리본 튜브형 광케이블에 관한 것이다.

ultrahigh-density large-core air-blowing micro cable and manufacturing process thereof

本发明提供了一种超高密度大芯数气吹微缆，其通过200μm小尺寸光纤进行套塑，以最多48的光纤形成的松套管为子单元，制备超高密度大芯数气吹微缆，具有低重量、小缆径、光纤密度高的优点。其包括中心加强件，所述中心加强件外周环布有至少一层光单元绞合层，相对外层的光单元绞合层绞合于相对内层的光单元绞合层所形成的外周，每层的光单元绞合层内包括有若干个相同的子单元，不同层的光单元绞合层内的子单元为相同的子单元，相对外层的光单元绞合层的子单元数量大于相对内层的光单元绞合层的子单元数量，每个子单元包括松套管，每根松套管内布置有最多48根200μm小尺寸光纤、且松套管内填充有油膏，最外层的光单元绞合层的外周包覆有PE外护套。

Optical cable for communication

Submarine communication comprehensive cable coated with polyvinyl chloride/polyethylene oxide water-blocking tape

本发明公开了一种聚氯乙烯/聚环氧乙烷阻水带绕包的海底通信综合电缆，该海底通信综合电缆包括线芯，线芯由内向外依次套设有聚氯乙烯/聚环氧乙烷阻水带包覆层、镀锌钢丝编织屏蔽套、交联聚烯烃护套；线芯与聚氯乙烯/聚环氧乙烷阻水带包覆层之间填充有硅凝胶，镀锌钢丝编织屏蔽套与交联聚烯烃护套之间填充有硅凝胶；线芯包括第一导线、单模光纤、同轴射频电缆线和第二导线。通过该方法制得的海底通信综合电缆具有优异的耐水性、导电性以及抗击穿性能；并且该制备方法步骤简单、易于推广。

Rat-proof anti-termite fire-proof optical cable and manufacture method thereof

本发明涉及一种防鼠防蚁耐火光缆及其制造方法。包括有缆芯和外护套，其特征在于在缆芯外挤包一层阻燃内护套，在阻燃内护套外包覆铠装钢丝层，在铠装钢丝层外挤包低烟无卤陶瓷化聚烯烃耐火层，最后在光缆最外层包覆具有防蚁功能的阻燃尼龙外护套。本发明外径小，结构简单，光缆的机械强度和韧性高，不仅具备很强的阻燃耐火性能，而且通过设置具有防蚁功能的阻燃尼龙外护套、铠装钢丝和防鼠加强层，使其具有优异的防鼠防蚁功能，能有效的防止白蚊蛀蚀和鼠啃，使光缆更能承受复杂的施工环境和使用环境，提高通信路由的可靠性。

Fiber optic assemblies, cable, and manufacturing methods therefor

光学组件及其制造方法包括纵向空腔、放置在纵向空腔内并具有预定长度的至少一光波导、以及放置在纵向空腔内并具有预定长度的至少一遇水膨胀纱。至少一遇水膨胀纱的预定长度比至少一光波导的预定长度长。至少一遇水膨胀纱相对于至少一光波导纵向放置，从而至少一遇水膨胀纱和至少一光波导在纵向空腔内作为独立体存在。

Line material for layered communication cable and layered communication cable using same

동(銅)메탈타임이나 광파이버루스튜브타입의 층연형(層燃型) 통신케이블에 사용되고, 복수다발 연선형(燃線形)으로 묶은 통신선다발의 주위에 감았을 때에 그 통신선다발 사이의 간극에 적당히 낙입(落入)하여 차수(遮水) 특성을 유지할 수 있는 층연형 통신케이블용 차수재(차수테이프)를 제공한다. 시트기재(基材) 상에 흡수성 조성물층이 배설된 2층구조의 것, 또는 그 흡수성 조성물층의 위에 다시 커버크로스가 피복되어 있는 3층구조의 것으로서, 그 종방향의 동성치(剛性値)가 0.3~1.5gf㎝/㎝의 범위에 있고, 또한 횡방향의 강성치가 0.2~0.5gf㎝/㎝의 범위에 있다.

CABLE FILLER COMPOSITION

1. Композиция наполнителя кабеля для волоконно-оптического кабеля, которая содержит: (i) базовое масло, полученное синтезом Фишера-Тропша; и (ii) загущающую систему, которая содержит по меньшей мере один блочный сополимер.2. Композиция по п. 1, в которой блочный сополимер выбран из стирольных блочных сополимеров.3. Композиция по п. 1, в которой блочный сополимер выбран из стирольных диблочных сополимеров, стирольных триблочных сополимеров и их смесей.4. Композиция по п. 1, в которой блочный сополимер выбран из стирол-этилен/бутиленового, стирол-этилен/пропиленового, стирол-бутадиен-стирольного, стирол-изопрен-стирольного, стирол-этилен/бутилен-стирольного, стирол-этилен/пропилен-стирольного сополимера, и их смесей.5. Композиция по п. 1, в которой блочный сополимер представляет собой стирол-этилен/пропиленовый блочный сополимер.6. Композиция по п. 1, в которой загущающая система присутствует в количестве 15 мас. % или меньше, в расчете на массу композиции наполнителя кабеля.7. Композиция по п. 1, в которой базовое масло, полученное синтезом Фишера-Тропша, присутствует в количестве 80 мас. % или больше, в расчете на массу композиции наполнителя кабеля.8. Композиция по п. 1, в которой базовое масло, полученное синтезом Фишера-Тропша, имеет кинематическую вязкость при 100°C в диапазоне от 2 мм/с до 35 мм/с.9. Композиция по п. 1, в которой базовое масло, полученное синтезом Фишера-Тропша, имеет кинематическую вязкость при 100°C в диапазоне от 2 мм/с до 10 мм/с.10. Композиция по п. 1, которая дополнительно содержит одну или несколько присадок.11. Волоконно-оптический кабель, который содержит композицию наполнителя кабеля, содержащую (i) базовое масло, полученное синтезом Фишера-Тропша, и (ii) загущающую систему.12. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C10M 169/02 (13) 2015 106 992 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015106992, 30.07.2013 (71) Заявитель(и): ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б. ...

OPTICAL CABLE AND METHOD OF MANUFACTURE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 106 338 A (51) МПК G02B 6/44 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017106338, 12.08.2014 (71) Заявитель(и): ПРИЗМИАН С.П.А. (IT) Приоритет(ы): (22) Дата подачи заявки: 12.08.2014 (43) Дата публикации заявки: 13.09.2018 Бюл. № R U 26 (72) Автор(ы): САЛЕС КАСАЛС Луис-Рамон (IT), БОНИЧЕЛЬ Жан-Пьер (IT) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.03.2017 (86) Заявка PCT: (87) Публикация заявки PCT: A WO 2016/023580 (18.02.2016) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Оптический кабель, содержащий несущую сердцевину, содержащую проходящий продольно и радиально паз, вмещающий в себя по меньшей мере одно оптическое волокно, при этом ширина паза обеспечивает малый зазор для оптического волокна (волокон), размещенных в нем, и предотвращает два оптических волокна от зацепления друг с другом; а глубина паза равна или меньше, чем радиус сердцевины. 2. Оптический кабель по п.1, содержащий оболочку, расположенную в радиально внешнем положении относительно сердцевины. 3. Оптический кабель по п.2, в котором оболочка является экструдированной оболочкой. 4. Оптический кабель по п.1, в котором сердцевина имеет, по существу, круглое поперечное сечение. 5. Оптический кабель по п.1, в котором диаметр сердцевины по меньшей мере в четыре раза больше ширины паза. 6. Оптический кабель по п.1, в котором сердцевина выполнена из армированного волокном пластика (FRP). 7. Оптический кабель по п.1, в котором сердцевина выполнена из материала, модуль Стр.: 1 A 2 0 1 7 1 0 6 3 3 8 (54) ОПТИЧЕСКИЙ КАБЕЛЬ И СПОСОБ ИЗГОТОВЛЕНИЯ 2 0 1 7 1 0 6 3 3 8 EP 2014/067268 (12.08.2014) A 2 0 1 7 1 0 6 3 3 8 R U A 2 0 1 7 1 0 6 3 3 8 R U упругости которого составляет по меньшей мере 40 ГПа. 8. Оптический кабель по п.1, в котором сердцевина имеет диаметр максимум в 3 мм. 9. ...

HIGH-MODULE OLEPHIN COMPOUNDS FOR BUFFER TUBES OF AN OPTICAL FIBER CABLE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 122 223 A (51) МПК C08L 23/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018122223, 06.12.2016 (71) Заявитель(и): ДАУ ГЛОУБЛ ТЕКНОЛОДЖИЗ ЛЛК (US) Приоритет(ы): (30) Конвенционный приоритет: 10.12.2015 US 62/265,735 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.06.2018 R U (43) Дата публикации заявки: 19.12.2019 Бюл. № 35 (72) Автор(ы): СЕВЕН Карл М. (US), ЭССЕГХИР Мохамед (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/100175 (15.06.2017) R U (54) ВЫСОКОМОДУЛЬНЫЕ ОЛЕФИНОВЫЕ СОЕДИНЕНИЯ ДЛЯ БУФЕРНЫХ ТРУБОК ОПТОВОЛОКОННОГО КАБЕЛЯ (57) Формула изобретения 1. Композиция, содержащая, в массовых процентах (мас. %) в расчете на массу композиции: (A) 22-49% полипропилена (ПП), (B) 50-65% полиэтилена высокой плотности (ПЭВП), (C) 7-12% средства для обеспечения совместимости, содержащее следующие компоненты, содержание которых выражено в мас. % в расчете на массу средства для обеспечения совместимости: (1) 30-90% олефинового блок-композита, содержащего сополимер этилена-пропилена (ЭП), изотактический полипропилен (иПП) и диблок-полимер ЭП-иПП, и (2) 10-70% ПЭВП, привитого малеиновым ангидридом (MAH-g-ПЭВП), (D) 0,05-5,0% нуклеирующего агента. 2. Композиция по п. 1, отличающаяся тем, что ПЭВП представляет собой бимодальный ПЭВП (b-ПЭВП). 3. Композиция по п. 1, отличающаяся тем, что ПП представляет собой полипропилен с высокой степенью кристалличности с показателем текучести расплава (ПТР) менее или ровно (≤) 12 г/10 мин. (230 °C/2,16 кг). 4. Композиция по п. 1, отличающаяся тем, что нуклеирующий агент представляет собой по меньшей мере один из NA-11, HPN-20E, талька и карбоната кальция. 5. Композиция по п. 1, дополнительно содержащая наполнитель. Стр.: 1 A 2 0 1 8 1 2 2 2 2 3 A Адрес для переписки: 105082, Москва, Спартаковский пер., 2,стр. 1, секция 1, этаж 3, ЕВРОМАРКПАТ 2 0 1 8 1 2 2 2 2 3 US 2016/065109 (06.12.2016) A 2 0 1 8 1 2 2 2 2 ...

Flat color stripe optical cable with double beam tubes and mould and production method thereof

本发明涉及一种双束管色条扁平光缆及其模具与生产方法，所述光缆包括光纤、双束管松套管、阻水纱、阻水带、纵包金属带、双束管松套管、加强元件、外护层以及外护层，所述外护层的横截面呈扁平的条形，外护层设有空腔，所述空腔内由外向内依次设有金属带、阻水带以及双束管结构松套管，所述光纤设于所述松套管内，所述阻水纱穿行于阻水带与双束管松套管间的缝隙，所述加强元件为两个分别设于外护层内的两侧有益效果为：不仅解决了光纤束型束管式光缆芯数有局限性的弊端，而且更是继承了其各方面的优点，通过合理的设计理念实现一种结构简单、生产工序简易、施工便利的低成本的双束管扁平光缆。

A kind of sodium acrylate water uptake expansion resin solution, PET fiber water adsorption swelling waterproof band and preparation method thereof

一种丙烯酸钠吸水树脂溶液，其组成（按重量）为：去离子水20~100份，氢氧化钠5~60份，丙烯酸4~40份，丙烯酰胺2~20份，过硫酸钾1~7份，过硫酸铵0.5~10份，N‑(羟甲基)丙烯酰胺0.1份~6份。本发明提供的丙烯酸钠吸水树脂溶液含有过硫酸铵和过硫酸钾两种引发剂，在共聚交联反应过程中，可以缓释交联速度，削弱放热反应产生的高温对共聚速率的影响，降低热量释放。其制备方法为：将氢氧化钠水溶液与丙烯酸进行中和反应，再依次加入丙烯酰胺水溶液、过硫酸铵、过硫酸钾和N‑(羟甲基)丙烯酰胺，搅拌后缓释制得。本发明还包括一种利用该丙烯酸钠吸水树脂溶液制备的PET纤维吸水膨胀阻水带，采用该方法制得的PET纤维吸水膨胀阻水带产品平方单重质量轻，质地柔软，膨胀厚度高且在光缆中膨胀阻水迅速，阻水效果好。

Bearing platform of optical signal amplification equipment

本申请公开了一种光信号放大设备的承载平台，承载平台包括承压筒体、光信号放大功能单元和两个端盖组件。承压筒体内设置有第一腔体，光信号放大功能单元内置于第一腔体，两个端盖组件分别设置于承压筒体的两端，且端盖组件内置于承压筒体。端盖组件与承压筒体的接触面设置有第一密封圈，对端盖组件与承压筒体的接触面进行密封。端盖组件包括第一注塑体，第一注塑体包裹于海缆与端盖嘴的交汇处，海缆、端盖嘴以及第一注塑体形成第一密封结构，这样，由承压筒体及两侧的两个端盖组件形成一个完整的密封承压舱体，光信号放大功能单元内置于该密封承压舱体，以实现承载平台对光信号放大功能单元的密封。

Powder filled fiber optic cable

Optical cable in which an optical waveguide within a protective sheath is in contact with a mixture of hydrophilic and hydrophobic powders, the hydrophilic powder being non-swellable and forming a viscous solution in contact with water to prevent ice crystal formation.

Optical cable using foam

본 발명은 광케이블에 관한 것으로서, 더욱 상세하게는 광섬유 유닛들을 중심에서 지지하는 중심멤버의 구조가 개선된 광케이블에 관한 것이다. 루즈튜브형 광케이블은 인장선과, 상기 인장선을 감싸며 다공성의 발포 복합체로 이루어진 스킨층을 구비한 중심멤버; 광섬유 유닛과, 상기 광섬유 유닛을 감싸는 플라스틱 튜브로 이루어진 복수의 광섬유 집합체; 및 케이블의 외곽을 피복하는 시스층;을 포함하며, 스킨층, 플라스틱 튜브, 및 시스층은 다공성의 발포 복합체로 이루어진다. 광케이블, 중심멤버, 발포체

Binder film for a fiber optic cable

一种光纤电缆，其包括芯部和围绕所述芯部的束缚膜。所述芯部包括中心强度构件和芯部元件，如含纳光纤的缓冲管，其中所述芯部元件绕所述中心强度构件、以包括在所述芯部元件的扭绞方向上的反向的绞合图案来绞合。所述束缚膜处于绕所述芯部的径向张力中，以使得所述束缚膜对抗所述芯部元件的向外横向偏转。另外，所述束缚膜将所述芯部元件法向地加载到所述中心强度构件，以使得所述芯部元件与中心强度构件之间的接触提供它们之间的联接，从而限制所述芯部元件相对于所述中心强度构件的轴向迁移。

Water-blocking high-temperature-resistant irradiation-resistant multi-core optical cable and preparation method thereof

本发明提供了一种阻水耐高温耐辐照多芯光缆，包括缆芯、第一阻水层、内护层、金属增强层、第二阻水层和外护层，所述缆芯包括中心填芯和绞合在中心填芯周围的两根以上紧包光纤，所述紧包光纤包括光纤和缓冲层；在缆芯外涂覆有第一阻水层，两根以上紧包光纤与第一阻水层和中心填芯之间的空隙填充有阻水胶，在第一阻水层外挤包有内护层，内护层外编织有金属增强层，金属增强层外涂覆有第二阻水层，第二阻水层外挤塑有外护层。本发明所述的阻水耐高温耐辐照多芯光缆，有效提高了光纤的强度以及光缆整体的耐高低温性能，保证光纤低损耗环境下的低损耗传输，提高了阻水性能和耐辐照性能。本发明还提供了所述的阻水耐高温耐辐照多芯光缆的制备方法。

Patent RU2017106338A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 106 338 A (51) МПК G02B 6/44 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017106338, 12.08.2014 (71) Заявитель(и): ПРИЗМИАН С.П.А. (IT) Приоритет(ы): (22) Дата подачи заявки: 12.08.2014 (43) Дата публикации заявки: 13.09.2018 Бюл. № R U 26 (72) Автор(ы): САЛЕС КАСАЛС Луис-Рамон (IT), БОНИЧЕЛЬ Жан-Пьер (IT) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.03.2017 (86) Заявка PCT: (87) Публикация заявки PCT: A WO 2016/023580 (18.02.2016) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Оптический кабель, содержащий несущую сердцевину, содержащую проходящий продольно и радиально паз, вмещающий в себя по меньшей мере одно оптическое волокно, при этом ширина паза обеспечивает малый зазор для оптического волокна (волокон), размещенных в нем, и предотвращает два оптических волокна от зацепления друг с другом; а глубина паза равна или меньше, чем радиус сердцевины. 2. Оптический кабель по п.1, содержащий оболочку, расположенную в радиально внешнем положении относительно сердцевины. 3. Оптический кабель по п.2, в котором оболочка является экструдированной оболочкой. 4. Оптический кабель по п.1, в котором сердцевина имеет, по существу, круглое поперечное сечение. 5. Оптический кабель по п.1, в котором диаметр сердцевины по меньшей мере в четыре раза больше ширины паза. 6. Оптический кабель по п.1, в котором сердцевина выполнена из армированного волокном пластика (FRP). 7. Оптический кабель по п.1, в котором сердцевина выполнена из материала, модуль Стр.: 1 A 2 0 1 7 1 0 6 3 3 8 (54) ОПТИЧЕСКИЙ КАБЕЛЬ И СПОСОБ ИЗГОТОВЛЕНИЯ 2 0 1 7 1 0 6 3 3 8 EP 2014/067268 (12.08.2014) A 2 0 1 7 1 0 6 3 3 8 R U A 2 0 1 7 1 0 6 3 3 8 R U упругости которого составляет по меньшей мере 40 ГПа. 8. Оптический кабель по п.1, в котором сердцевина имеет диаметр максимум в 3 мм. 9. ...

Optical fiber cable provided with stabilized waterblocking material

A cable of this invention includes a core comprising a plurality of coated optical fibers and a filling composition of matter which is disposed about the fibers. Typically, the fibers and the filling material are diposed within a tubular member which is disposed within a sheath system. The sheath system include longitudinally extending strength members and a plastic jacket. The filling composition which fills interstices in the core is one which includes an oil constituent which is a relatively high molecular weight aliphatic hydrocarbon. The aliphatic hydrocarbon is a synthetic oil such as polyalphaolefin or mineral oil. A relatively large percent by weight of an antioxidant system is used to prevent thermal oxidative degradation of the filling material as well as of materials in contact with the filling material. Advantageously, for stabilization and metal deactivation, the composition includes zinc dialkyldithiophosphate or diaryldithiophosphate. A styreneethylene propylene copolymer is also included in order to reduce oil separation of the filling material. A fumed silica is used to impart gel properties to the material.

Optical fiber core and method of evaluation thereof

本发明提供一种即使在高湿度状态或浸水状态下，传输损失也不易增加的光纤芯线。本发明的光纤芯线，于在玻璃光纤外周具有至少2层被覆层的光纤素线的外周具有着色被覆层，其特征在于：所述光纤素线与从所述光纤素线除去所述玻璃光纤所得的被覆层在－100～100℃的温度范围的外径方向的各热膨胀量之差为1.8μm以下。

Flood compounds for telecommunication cables

원거리 통신 케이블용 범람 화합물. 상기 범람 화합물은 중합체 충전제 및 분지형 올레핀 유체를 함유한다. 분지형 올레핀 유체는 올리고머 분자 당 평균적으로 적어도 1.5개의 메틴 탄소 및 1,000개의 전체 탄소 당 적어도 40개의 메틴 탄소를 갖는다. 또한, 분지형 올레핀 유체에서 분자 당 평균 탄소수는 25 내지 200이다.

Polyvinyl chloride/polyvinyl alcohol water-blocking tape wrapped undersea communication integrated cable

本发明公开了一种聚氯乙烯/聚乙烯醇阻水带绕包的海底通信综合电缆，该海底通信综合电缆包括线芯，线芯由内向外依次套设有聚氯乙烯/聚乙烯醇阻水带包覆层、镀锌钢丝编织屏蔽套、交联聚烯烃护套；线芯与聚氯乙烯/聚乙烯醇阻水带包覆层之间填充有硅凝胶，镀锌钢丝编织屏蔽套与交联聚烯烃护套之间填充有硅凝胶；线芯包括第一导线、单模光纤、同轴射频电缆线和第二导线。通过该方法制得的海底通信综合电缆具有优异的耐水性、导电性以及抗击穿性能；并且该制备方法步骤简单、易于推广。

Способ предотвращения образования осадка на направляющих роликах

1. Способ предотвращения или уменьшения образования осадка суперабсорбента и/или масла на направляющих роликах в процессе нанесения на пряжу эмульсии суперабсорбента типа вода-в-масле, где масло представляет собой смесь, содержащую насыщенные углеводороды, отличающийся тем, что не менее 70 вес.% углеводородов содержат от 20 до 32 атомов углерода. ! 2. Способ по п.1, отличающийся тем, что не менее 75 вес.% углеводородов содержат от 20 до 32 атомов углерода. ! 3. Способ по п.1, отличающийся тем, что не менее 79 вес.% углеводородов содержат от 20 до 32 атомов углерода. ! 4. Способ по любому из пп.1-3, отличающийся тем, что указанный способ используется в режиме онлайн для пряжи, которую получают способом формования волокна. !5. Способ по п.4, отличающийся тем, что скорость пряжи составляет по крайней мере 220 м/мин. ! 6. Способ по п.1, в котором пряжа представляет собой арамидную пряжу или стеклопряжу. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 139 646 (13) A (51) МПК D06M 13/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2009139646/05, 22.03.2008 (71) Заявитель(и): ТЕЙДЖИН АРАМИД Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: 27.03.2007 EP 07006201.3 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.10.2009 (87) Публикация заявки РСТ: WO 2008/116619 (02.10.2008) R U (54) СПОСОБ ПРЕДОТВРАЩЕНИЯ ОБРАЗОВАНИЯ ОСАДКА НА НАПРАВЛЯЮЩИХ РОЛИКАХ (57) Формула изобретения 1. Способ предотвращения или уменьшения образования осадка суперабсорбента и/или масла на направляющих роликах в процессе нанесения на пряжу эмульсии суперабсорбента типа вода-в-масле, где масло представляет собой смесь, содержащую насыщенные углеводороды, отличающийся тем, что не менее 70 вес.% углеводородов содержат от 20 до 32 атомов углерода. 2. Способ по п.1, отличающийся тем, что не менее 75 вес.% углеводородов содержат от 20 до 32 атомов углерода. 3. Способ по п.1, отличающийся тем, что не менее 79 ...

Conductive elements in cable jackets and separators

双绞线（16，18，20，22）或者光纤类型的缆线，包括允许接插线在端口之间连接的导体。在双绞线缆线的情况下，导体可以被嵌入或者连接至隔离物（100）的表面。可选择地，在双绞线缆线的情况下，导体可以被嵌入或者连接至护套（12）表面。在光纤缆线的情况下，导体可以被放置在加强件之间。可选择地，导体可以被嵌入或者连接至护套表面。

Optical fiber cable

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

It is high pressure resistant pre- into end optical cable and its production method

本发明涉及耐高压预端接光缆，其特征在于，所述光缆包括主干光缆、分支器、连接器，所述主干光缆的一端设置有高压端连接器，另一端设置有低压端连接器，所述主干光缆上靠近高压端连接器或/和低压端连接器附近均设置有分支器。该技术方案结构简单、安全可靠、使用方便、成本较低，并且使用安全，使用寿命大大延长。

Copper and optical fiber cable with improved filling material

A copper and optical fiber filling material that comprises a hydrocarbon component, which is semisolid at use temperatures in combination with an antioxidant system comprising of (a) sulfur containing primary phenolic antioxidant; (b) a mixture of mono- and di-alkyl butyl/octyl diphenylamine; (c) an organic phosphite or phosphonite and (d) optionally one or more hindered phenol antioxidants exhibits excellent oxidative stability.

Split type watertight optical connector

本发明公开了一种分瓣式水密光连接器，包括插座和与插座配合的多个插头；插座包括插座外壳和多个插座水密光缆，插座外壳内具有多个光通道，各插座水密光缆的头部分别密封固定于光通道的一侧，且各插座水密光缆的头部分别具有插座光插针；各插头包括插头外壳和与插头外壳密封固定连接的插头水密光缆，插头水密光缆的头部具有插头光插针，各插头与插座外壳固定连接，且插头插入对应光通道的另一侧，以与对应的插座光插针接触，插头外壳与光通道密封连接。该分瓣式水密光连接器通过一个插座即可连接多个分瓣式水密插头，接收终端仅需开设一个安装插座的孔即可，因而减少了空间占用，降低了大水深下开孔个数多造成的失效环节多的风险隐患。

A kind of boundling optical cable and its plsitive mold

本发明公开了一种集束光缆及其挤压式模具，解决了铺设若干不同类型的光缆时，需要重复施工，降低了施工效率的问题，涉及光缆领域，其技术方案要点是：一种集束光缆，包括若干不同类型的缆芯以及设置在各个缆芯外的外护套，相邻两个所述外护套之间通过连接板连接，所述外护套和连接板一体成型制造，且所述连接板内穿设有沿连接板长度方向分布的撕裂绳，位于各个所述连接板内的撕裂绳的数量为两根；达到将不同类型的光缆组成一根光缆，提高施工效率的效果。

Method of coating optical fiber and optical fiber including the same

本发明提供了一种将吸水聚合物涂层施加到光纤上的方法，所述光纤包括芯、包层和至少一个初级涂层，所述方法包括用不含有机溶剂的可辐射固化涂层组合物涂覆光纤，并优选使用紫外线引发聚合。另外，本发明提供了一种涂覆的光纤，其可以结合在管状或扁平的护套中，例如作为多光纤电缆或带。还提供了一种着色的涂覆的光纤。

A kind of high hydroscopic resin and its preparation method and application

本发明属于功能高分子材料领域，特别涉及一种高吸水树脂及其制备方法和应用，本发明以非离子型聚合物——聚乙烯醇为吸水主体，木薯淀粉的物理保水与聚乙烯醇的化学吸附能力形成互补，同时引入木质素磺酸增强抗抗剪切能力，羟丙基甲基纤维素增强纵向拉伸能力，通过多步互穿制得，在高压力、高盐度条件下吸水率高，可以充分吸液以达到阻水效果；本发明采用的原料无毒无害、获得途径广、绿色环保，制备耗能低，适用于产业化生产；本发明的高吸水树脂具备优异的力学性能，耐高压、耐盐，适用于各种复杂环境，可用作光缆阻水材料。

Water shielding type optical fiber cable for low temperature service

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Water-proof optical fiber cable and its manufacture

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。