Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 10046. Отображено 100.
05-01-2012 дата публикации

Data cable with free stripping water blocking material

Номер: US20120000690A1
Автор: Harry Van Der Meer
Принадлежит: General Cable Technologies Corp

A data cable with free stripping water blocking material includes a first conductor substantially surrounded by a first foam, a second conductor longitudinally adjacent the first conductor and substantially surrounded by a second foam, a solid coat substantially surrounding the first foam of the first conductor, a filler material, a shielding member, a water swellable tape, and a jacket. The first conductor with the first foam and the solid coat and the second conductor with the second foam are substantially placed within the filler material. The shielding member is placed substantially around the filler material. The water swellable tape is placed substantially around the shielding member. The jacket is placed substantially around the water swellable tape.

Подробнее
Номер записи: 1
19-01-2012 дата публикации

Dc power cable with space charge reducing effect

Номер: US20120012362A1
Автор: Ho-Souk Cho, Jin-Ho Nam, Son Tung Ha, Yoon-Jin Kim, Young-Ho Park
Принадлежит: LS Cable Ltd

Provided is a DC power cable including a conductor, an inner semiconductive layer, an insulation and an outer semiconductive layer. In particular, the inner semiconductive layer or the outer semiconductive layer may be formed from a semiconductive composition containing a polypropylene base resin or a low-density polyethylene base resin and carbon nano tubes; and the insulation may be formed from an insulation composition containing a polypropylene base resin or a low-density polyethylene base resin and inorganic nano particles. The resulting power cable may have improved properties such as volume resistivity, hot set, and so on, and excellent space charge reducing effect.

Подробнее
Номер записи: 2
03-01-2013 дата публикации

Electrical cable for high voltage direct current transmission, and insulating composition

Номер: US20130000945A1
Автор: Enrico Albizzati, Gabriele Perego
Принадлежит: Pirelli Cavi e Sistemi Energia SRL

Cable for high voltage direct current transmission, comprising at least one conductor and at least one extruded insulating layer consisting of a polymeric composition comprising a polyethylene and at least one unsaturated fatty acid. Insulating composition, comprising a polyethylene and at least one unsaturated fatty acid.

Подробнее
Номер записи: 3
24-01-2013 дата публикации

Primary wire for marine and sub-sea cable

Номер: US20130020107A1
Автор: Antonio Pagliuca
Принадлежит: Tyco Electronics UK Ltd

Primary wire for marine or undersea cable comprises a conducting core ( 10 ), typically a multifilament core of copper, and an insulating sheath comprising an insulating inner layer ( 12 ) having a thickness of 0.35 to 1.0 mm, preferably 0.5 to 0.75 mm, and an outer protective layer ( 14 ) of polyvinylidene fluoride having a thickness of 0.15 to 0.3 mm, at least the outer layer being radiation crosslinked. The inner and outer layers are preferably crosslinked together using electron beam radiation. The combination of the inner and outer layers of the sheath enables marine and subsea cables and the like to be made with smaller diameters, without loss of capacity or electrical properties and with an increase in overall performance such as temperature range and mechanical properties.

Подробнее
Номер записи: 4
24-01-2013 дата публикации

Wire harness, wire harness manufacturing method

Номер: US20130020125A1
Автор: Atsushi Murata, Nobuyuki Hirano, Osamu Sato
Принадлежит: AutoNetworks Technologies Ltd, Sumitomo Wiring Systems Ltd

A predetermined part of electric wires ( 91 ) is held or wrapped in a first material ( 801 ) and a second material ( 802 ) formed of a thermoplastic material, and a protective layer material ( 803 ) formed of a water repellent material is provided on approximately the entire surface of the first material and the second material. The first material ( 801 ), the second material ( 802 ) and the protective layer material ( 803 ) are heated and pressurized. The first material ( 801 ) and the second material ( 802 ) are molded to have a predetermined shape and size. The protective layer material ( 803 ) is joined to the surface of the first material and the second material ( 802 ) by melting at least a part of the surface layer of the first material ( 801 ) and the second material ( 802 ). Further, a material having high abrasion resistance is selected as the protective layer material ( 803 ).

Подробнее
Номер записи: 5
07-03-2013 дата публикации

Anticorrosive, coated electric wire with terminal, and wiring harness

Номер: US20130056266A1
Автор: Hiroshi Sudou, Hiroshi Yamaguchi, Hisahiro Yasuda, Kazuo Nakashima, Masato Inoue, Shigeyuki Tanaka, Tetsuya Nakamura, Yukiyasu Sakamoto
Принадлежит: AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd, Sumitomo Wiring Systems Ltd

Provided is an anticorrosive that is capable of demonstrating high anticorrosive capability both at an early stage and at a later stage after exposure to ultraviolet light. The anticorrosive mainly contains an insulating resin, and has a total light transmittance of less than 85%, which is measured in accordance with the JIS K7361-1. The anticorrosive can be favorably applied to an electrically connected portion between a wire conductor of a coated electric wire with a terminal and a terminal member. The coated electric wire with the terminal includes the wire conductor and the terminal member, wherein the electrically connected portion between the wire conductor and the terminal member is coated with the anticorrosive.

Подробнее
Номер записи: 6
07-03-2013 дата публикации

Coating composition and applications thereof

Номер: US20130059963A1
Автор: Bo-Hsuan Lin, Kuang-Chieh Li
Принадлежит: Chi Mei Corp

A coating composition includes a block copolymer, an adhesive resin, and a solvent for dispersing the block copolymer and the adhesive resin therein. The block copolymer contains at least two vinyl aromatic polymer blocks and at least one partially hydrogenated conjugated diene polymer block, and has a hydrogenation ratio ranging from 10% to 90%.

Подробнее
Номер записи: 7
11-07-2013 дата публикации

Coated Conductor with Voltage Stabilized Inner Layer

Номер: US20130175070A1
Автор: Cogen Jeffrey M., Person Timothy J.
Принадлежит:

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent contains a triazine. The triazine may include a substituent that enables keto-enol tautomerism, which provides the voltage stabilizing agent with additional energy dissipation capacity. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable. 2. The coated conductor of wherein the polyolefin is a polyethylene.3. The coated conductor of wherein the polyolefin is a crosslinked polyethylene.4. The polymeric composition of wherein at least one of R-Ris a C-Chydrocarbyl group.5. The polymeric composition of wherein at least one of R-Ris a substituted C-Chydrocarbyl group.6. The coated conductor of wherein at least one of R-Rcomprises an aryl group.7. The coated conductor of wherein each of R-Rcomprises an aryl group.8. The polymeric composition of comprising from about 0.1 wt % to about 3 wt % of the triazine.9. The coated conductor of wherein the coated conductor is selected from the group consisting of a medium voltage power cable claim 1 , a high voltage power cable claim 1 , and an extra high voltage power cable.10. The coated conductor of wherein the inner layer is an insulating layer.11. The coated conductor of wherein the inner layer is a shielding layer. A typical power cable includes one or more conductors in a cable core surrounded by one or more layers of polymeric material. Medium voltage (6 to 36 kV) and high voltage (greater than 36 kV) and extra high voltage (greater than 220 kV) cable typically include a core surrounded by an inner semiconducting layer, followed by an insulating layer, and then an outer semiconducting layer, and an outermost layer (or sheath).The load-carrying capacity of a cable system is limited, in part, by the heat transfer away from the conductor. Polyolefins, such as polyethylene, are ...

Подробнее
Номер записи: 8
05-09-2013 дата публикации

Waterproof structure for electronic unit

Номер: US20130229097A1
Автор: Kensaku HOTTA, Norio Nakatani, Takahiro Sanada, Toshio Tamai
Принадлежит: JTEKT Corp

A waterproof structure for an electronic unit includes a sub-case that defines an accommodating portion that accommodates a first terminal, and has a cable guiding hole that communicates with the accommodating portion. A potting resin filled in the accommodating portion is also filled in a space between a cable and the cable guiding hole. The cable includes a first sheath that covers a conductor and is made of a first resin material, and a second sheath that covers the first sheath. The second sheath and the potting resin are made of a second resin material that is different from the first resin material.

Подробнее
Номер записи: 9
10-10-2013 дата публикации

Insulated wire and cable

Номер: US20130264091A1
Автор: Ryo Watanabe
Принадлежит: Fujikura Ltd

The present invention is an insulated wire provided with a conductor and an insulating layer that covers the conductor, wherein the insulating layer contains a propylene-based copolymer obtained by synthesis using a metallocene catalyst, and an antioxidant having a chemical structure that differs from a hindered phenol structure, and the antioxidant is incorporated at a ratio of not less than 0.01 parts by mass to less than 1.5 parts by mass based on 100 parts by mass of the propylene-based copolymer.

Подробнее
Номер записи: 10
14-11-2013 дата публикации

METHOD OF FABRICATING INSULATING RESIN MATERIAL

Номер: US20130302515A1
Автор: Yanagimoto Hiroshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

The present invention relates to a method of fabricating an insulating resin material () from a core/shell particle () having a core particle () containing a macromolecular compound and a shell layer () coating the core particle () and containing an inorganic compound. The method of fabrication includes mixing the core/shell particles () with a good solvent () for the macromolecular compound, infiltrating the good solvent () through the shell layer (), impregnating the good solvent () into the macromolecular compound, molding a compact from the impregnated core/shell particles (), and removing the good solvent from the compact by heating the molded compact. 1. A method of fabricating an insulating resin material from a core/shell particle having a core particle containing polystyrene and a shell layer coating the core particle and containing an inorganic compound , the method comprising:mixing the core/shell particles with benzene, toluene or xylene, infiltrating the mixed benzene, toluene or xylene into the core/shell particle through the shell layer, impregnating the mixed benzene, toluene or xylene into the polystyrene;molding a compact from the impregnated core/shell particles; andremoving the impregnated benzene, toluene or xylene from the compact by drying the molded compact.2. The method according to claim 1 , wherein when the compact is formed claim 1 , a surface of a substrate is coated with the impregnated core/shell particles to form an insulating film as the compact on the surface.3. The method according to claim 2 ,wherein the substrate is a plate-shaped substrate,when the compact is formed, the impregnated core/shell particles are applied onto the surface to form the insulating film which is the compact, andafter the impregnated benzene, toluene or xylene is removed from the compact, the insulating film which is the compact is peeled off from the surface.4. The method according to claim 1 , wherein a thickness of a shell of the core/shell particle is ...

Подробнее
Номер записи: 11
26-12-2013 дата публикации

Polyolefin Composition for Medium/High/Extra High Voltage Cables with Improved Electrical Breakdown Strength

Номер: US20130341066A1
Автор: Thomas Hjertberg, Villgot Englund
Принадлежит: BOREALIS TECHNOLOGY OY

This application relates to a polyolefin composition comprising a polyolefin and an aromatic compound. The polyolefin composition can be used in producing medium and high voltage cables with improved electrical breakdown strength.

Подробнее
Номер записи: 12
09-01-2014 дата публикации

ELECTRICAL CABLE RESISTANT TO FIRE, WATER AND MECHANICAL STRESSES

Номер: US20140008098A1
Автор: MAZZUCATO Alessandro, RUCCI Riccardo, SCAGLIONE Antonio, SOCCAL Carlo
Принадлежит:

An electrical cable includes at least one conductor and a barrier arranged externally to the at least one conductor. The barrier includes two first layers including an inorganic material and a second layer including a polymer-metal composite material, the second layer being interposed between the two first layers. The electrical cable also includes, in an intermediate position between the at least one conductor and the barrier, solely discontinuous layers and/or layers of non-thermally-collapsible materials. 115-. (canceled)17. The electrical cable according to claim 16 , wherein the at least one conductor of the electrical cable has an insulating coating comprising at least one discontinuous layer of inorganic material and a layer of ceramifying polymer.18. The electrical cable according to claim 17 , wherein the insulating coating comprises at least two discontinuous layers of inorganic material.19. The electrical cable according to claim 18 , wherein said at least two discontinuous layers are provided in a radially internal position with respect to the layer of ceramifying polymer.20. The electrical cable according to claim 17 , wherein the at least one discontinuous layer is in a form of a tape wound with an overlap equal to or higher than 20%.21. The electrical cable according to claim 19 , wherein the at least two discontinuous layers are tapes which are wound with opposite winding directions.22. The electrical cable according to claim 17 , wherein the inorganic material of the at least one discontinuous layer is glass fiber and/or mica.23. The electrical cable according to claim 17 , wherein the layer of ceramifying polymer is made of a polymer filled with refractory additives.24. The electrical cable according to claim 17 , wherein the layer of ceramifying polymer comprises silicone rubber.25. The electrical cable according to claim 16 , wherein the inorganic material of each first layer of the barrier comprises glass fiber and mica.26. The electrical cable ...

Подробнее
Номер записи: 13
16-01-2014 дата публикации

INSULATIONS CONTAINING NON-MIGRATING ANTISTATIC AGENT

Номер: US20140017494A1
Автор: CULLIGAN Sean W., LIU Jianmin, MHETAR Vijay
Принадлежит: General Cable Technologies Corporation

The invention provides an insulation composition for an electric cable containing a polyolefin, a permanent (non-migrating) antistatic agent, a phenolic antioxidant, and a peroxide. Preferably, the permanent antistatic agent is present at about 0.5-5 percent by weight of the total composition, preferably about 0.8-3 percent, and more preferably about 0.9-2.5 percent. 1. A composition comprising a polyolefin polymer , a permanent antistatic agent , a phenolic antioxidant , and a peroxide.2. The composition of claim 1 , wherein the permanent antistatic agent is polyethylene-polyether copolymer claim 1 , potassium ionomer claim 1 , ethoxylated amine claim 1 , or polyether block imides.3. The composition of claim 1 , wherein polyolefin polymer is polyethylene.4. The composition of claim 1 , wherein the phenolic antioxidant is thiodiethylene bis(3-(3 claim 1 ,5-di-tert-4-butyl-4-hydroxyphenyl)propionate claim 1 , pentaerythritol tetrakis(3-(3 claim 1 ,5-di-tert-butyl-4-hydroxyphenyl)propionate claim 1 , ethylenebis(oxyethylene)bis-(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate claim 1 , or 4 claim 1 ,6-bis(octylthiomethyl)o-cresol.5. The composition of claim 1 , wherein the peroxide is dicumyl peroxide or tert-butyl cumyl peroxide.6. The composition of claim 1 , further comprising at least one additive.7. The composition of claim 6 , wherein the at least one additive is selected from the group consisting of a metal deactivator claim 6 , a flame retarder claim 6 , a dispersant claim 6 , a colorant claim 6 , a stabilizer claim 6 , a peroxide claim 6 , and a lubricant.8. The composition of claim 7 , wherein the stabilizer is bis (1 claim 7 ,2 claim 7 ,2 claim 7 ,6 claim 7 ,6-pentamethyl-4-piperidinyl) sebacate claim 7 , 4 claim 7 ,6-bis (octylthiomethyl)-o-cresol claim 7 , or dioctadecyl 3 claim 7 ,3′-thiodipropionate.9. The composition of claim 1 , wherein the polyolefin polymer is present at about 90 -99 percent by weight of total composition.10. The composition of claim ...

Подробнее
Номер записи: 14
30-01-2014 дата публикации

ADDITIVE COMPOSITIONS FOR LOW LOSS WIRE AND CABLE DIELECTRIC AND PRODUCTS OBTAINED THEREBY

Номер: US20140030521A1
Автор: REEDY Michael E.
Принадлежит: REEDY INTERNATIONAL CORPORATION

There are disclosed additive compositions for polymer base materials, which additive compositions are comprised of blowing agent (direct gas or chemical blowing agent), thermoplastic polymer carrier for the chemical blowing agent and filler, wherein the thermoplastic polymer carrier has a melting point below the decomposition temperature of the chemical blowing agent. The chemical blowing agent can be selected from those based on hydrazine, hydrazide, or azodicarbonamide, or those based on combinations of sodium citrate/citric acid and sodium bicarbonate. The filler can be selected from calcium carbonate, zeolites, clay and other known fillers. The polymer base sheet material can be, e.g., polyethylene, polypropylene, polybutylene, poly (p-phenylene oxide), polystyrene and combinations thereof. If direct gas blowing agent is used, then the compositions should contain a nucleating agent which may or not be the same as the chemical blowing agent. 1. An additive composition for polymer base materials , the additive composition comprised of:a direct gas or chemical blowing agent;a thermoplastic polymer carrier for the chemical blowing agent; anda filler,wherein the thermoplastic polymer carrier has a melting point below the decomposition temperature of the chemical blowing agent.2. A foamable composition comprised of:polymer base material; andan additive composition comprised of: chemical blowing agent, thermoplastic polymer carrier for the chemical blowing agent, and filler,wherein the thermoplastic polymer carried has a melting point below the decomposition temperature of the chemical blowing agent.3. A composite comprised of:a core comprised of metallic or non-metallic conductive wire or cable; anda covering for the core, the covering comprised of: foamed polymeric material comprised of polymer base material and an additive composition comprised of: residue of chemical blowing agent, thermoplastic polymer carrier for the chemical blowing agent, and filler.4. A method ...

Подробнее
Номер записи: 15
20-03-2014 дата публикации

Subterranean Cable

Номер: US20140076606A1
Автор: Patel Darren Lindsay
Принадлежит:

The present invention relates to a cable comprising three conductors and three insulator layers, wherein the conductors and the insulators extend helically along a longitudinal axis of the cable, wherein the insulator layers are axially external to the conductors, and wherein the insulator layers comprise a fluoropolymer, as well as a method of manufacturing said cable, and a method for transmitting electricity using the cable. 1. A cable comprising:three or more cores, each core comprising a conductor and an insulator layer disposed axially external to the conductor, wherein each core extends along a longitudinal axis of the cable, wherein the insulator layer comprises a first fluoropolymer, anda first plurality of wires disposed axially external to the three or more cores and extending along the longitudinal axis of the cable.2. The cable of claim 1 , wherein the three or more cores extend helically along the longitudinal axis of the cable claim 1 , wherein the helices of each core preferably intertwine.3. The cable of claim 1 , wherein the fluoropolymer is a copolymer comprising:a first monomer selected from a group consisting of 1,1,2,2-tetrafluoroethylene, 1-fluoroethylene, 1,1-difluoroethylene, 1,2-difluoroethylene, 1,1,2-trifluoroethylene, hexafluoropropene, perfluoropropyl vinyl ether, perfluoroethyl vinyl ether, perfluoromethyl vinyl ether, perfluorobutyl ether, 1-chloro-1,2,2-trifluoroethylene, 1,1 dichloro 2,2, difluoroethylene, 1,2 dichloro 1,2, difluoroethylene, 1,1,2-trichloro-2-fluoroethylene, and hexafluoropropylene, anda second monomer selected from a group consisting of ethylene, propylene, 1,1,2,2-tetrafluoroethylene, 1-fluoroethylene, 1,1-difluoroethylene, 1,2-difluoroethylene, 1,1,2-trifluoroethylene, hexafluoropropylene, perfluoropropyl vinyl ether, perfluoroethyl vinyl ether, perfluoromethyl vinyl ether, perfluorobutyl ether, 1-chloro-1,2,2-trifluoroethylene, 1,1 dichloro 2,2, difluoroethylene, 1,2 dichloro 1,2, difluoroethylene, 1,1,2- ...

Подробнее
Номер записи: 16
20-03-2014 дата публикации

INSULATION COMPOSITION FOR DC POWER CABLE AND DC POWER CABLE PREPARED BY USING THE SAME

Номер: US20140076609A1
Автор: HA Son Tung, Kim Yoon Jin, NAM Jin Ho, Park Young Ho
Принадлежит: LS Cable & System Ltd.

The present invention relates to an insulation composition for a DC power cable and the DC power cable prepared using the same. Specifically, the present invention relates to an improved insulation composition for a DC power cable, which can prevent decrease of DC dielectric strength and decrease of impulse strength caused by accumulation of space charges, and the DC power cable prepared using the same. 1. An insulation composition for a DC power cable , the composition comprising:a base resin including polyolefin; and0.03 to 0.1 percent by weight of baked carbon nano-particles, with respect to a total weight of the composition.2. The composition according to claim 1 , wherein thickness of the baked carbon nano-particles is 10 nm or less.3. The composition according to claim 2 , wherein the baked carbon nano-particles include nano plates formed by laminating and baking graphene layers.4. The composition according to claim 1 , wherein the baked carbon nano-particles include 3 or less weight percent of oxygen claim 1 , with respect to a total weight of the particle.5. The composition according to claim 1 , wherein the polyolefin includes a homopolymer of ethylene claim 1 , a copolymer of the ethylene and other α-olefin claim 1 , a homopolymer of propylene claim 1 , a copolymer of the propylene and other α-olefin claim 1 , and mixtures thereof.6. The composition according to claim 5 , wherein the insulation composition contains 1 to 5 percent by weight of a cross-linking agent selected from a group consisting of a silane-based cross-linking agent; an organic peroxide cross-linking agent such as dicumyl peroxide claim 5 , benzoyl peroxide claim 5 , lauryl peroxide claim 5 , t-butyl cumyl peroxide claim 5 , di(t-butyl peroxy isopropyl)benzene claim 5 , 2 claim 5 ,5-dimethyl-2 claim 5 ,5-di(t-butyl peroxy)hexane claim 5 , or di-t-butyl peroxide; and mixtures thereof claim 5 , with respect to a total weight of the composition.7. The composition according to claim 1 , ...

Подробнее
Номер записи: 17
20-03-2014 дата публикации

Strippable semiconducting shield compositions

Номер: US20140079952A1
Автор: Sean W. Culligan
Принадлежит: General Cable Technologies Corp

The invention relates to semiconducting shield compositions for electric power cables having a base polymer system, nano-talc, and carbon black. The invention also relates to such semiconducting shield compositions and the use of these semiconducting shield compositions to manufacture semiconductive shields for use in electric cables, electric cables made from these compositions and methods of making electric cables from these semiconducting shield compositions. The semiconducting shield compositions of the invention may be used as strippable “semiconducting” dielectric shields (also referred to as the core shields, dielectric screen and core screen materials) in power cables with cross linked polymeric insulation, primarily with medium voltage cables having a voltage from about 5 kV up to about 100 kV, preferably up to about 35 kV.

Подробнее
Номер записи: 18
03-04-2014 дата публикации

SILANE CROSSLINKABLE POLYMER COMPOSITION

Номер: US20140093730A1
Автор: Anker Martin, Dahlen Kristian, Fagrell Ola, Nylander Perry, SULTAN Bernt-Ake
Принадлежит: Borealis AG

The invention is directed to a silane crosslinkable polymer composition which comprises a polyolefin (a) bearing hydrolysable silane group(s) containing units. The polymer composition is suitable for producing crosslinkable articles, preferably one or more layers of a cable. The formed article, preferably a cable, is preferably crosslinked before the enduse thereof. 1. A polymer composition comprising{'sub': '2', 'a polyolefin (a) bearing hydrolysable silane group(s) containing units and having an MFRof less than 0.80 g/10 min (according to ISO 1133 at 190° C. and at a load of 2.16 kg), and'}a scorch retarding compound.2. The polymer composition according to claim 1 , wherein the MFRof the polyolefin (a) bearing hydrolysable silane group(s) containing units is from 0.15 to 0.75 g/10 min.3. The polymer composition according to claim 1 , wherein the polymer composition has a hot set elongation of 180% claim 1 , when measured according to “Hot set elongation test” using a crosslinked cable sample as described under “Determination methods” after crosslinking the sample in water at 90° C. for 20 hours.4. The polymer composition according to claim 1 , wherein the amount of the hydrolysable silane group(s) containing units is from 0.010 to 0.15 mol/kg polyolefin (a) as determined in the description part under “Determination methods”.5. The polymer composition according to claim 1 , wherein the hydrolysable silane group(s) containing units are introduced to polyolefin (a) by copolymerising an olefin comonomer with a hydrolysable silane group containing comonomer or by grafting a hydrolysable silane group containing compound to a polyolefin polymer.6. The polymer composition according to claim 1 , wherein the polyolefin (a) bearing hydrolysable silane group(s) containing units is a propylene polymer or an ethylene copolymer.7. The polymer composition according to claim 1 , wherein the polyolefin (a) bearing hydrolysable silane group(s) containing units is a low density ...

Подробнее
Номер записи: 19
03-04-2014 дата публикации

Polymer Composition for Electrical Devices

Номер: US20140093732A1
Автор: Andersson Johan, Englund Villgot, Hagstrand Per-Ola, Nilsson Ulf, Smedberg Annika, Steffl Thomas, Wolfschwenger Johannes
Принадлежит: Borealis AG

The present invention relates to a polymer composition, to the use of the composition for producing an electrical device, as well as to a cable surrounded by at least one layer including the polymer composition. 1. A polymer composition , comprising:(a) a polyolefin which is other than low density polyethylene (LDPE);(b) a second polyolefin which is different from the polyolefin (a); and(c) an ion exchanger additive.2. The polymer composition according to claim 1 , wherein the polyolefin (a) is a polyethylene produced in the presence of an olefin polymerisation catalyst and selected from an ethylene homopolymer or a copolymer of ethylene with one or more comonomer(s); or a homo- or copolymer of C3-20 alpha-olefin produced in the presence of an olefin polymerisation catalyst claim 1 , which is preferably selected from a propylene homopolymer claim 1 , a random copolymer of propylene with one or more comonomer(s) or heterophasic copolymer of propylene with one or more comonomer(s) or from homo- or copolymers of butane claim 1 , even more preferably the polyolefin (a) is a polyethylene produced in the presence of an olefin polymerisation catalyst and selected from an ethylene homopolymer or a copolymer of ethylene with one or more comonomer(s).3. The polymer composition according to claim 1 , wherein the polyolefin (a) is polyethylene produced in the presence of an olefin polymerisation catalyst and selected from very low density polyethylene (VLDPE) copolymers claim 1 , linear low density polyethylene (LLDPE) copolymers claim 1 , medium density polyethylene (MDPE) copolymers or high density polyethylene (HDPE) homopolymers or copolymers claim 1 , wherein each type of polyethylene can be unimodal or multimodal with respect to molecular weight distribution claim 1 , preferably the polyolefin (a) is a unimodal or multimodal MDPE polymer or a unimodal or multimodal HDPE polymer claim 1 , most preferably a unimodal or multimodal HDPE.4. The polymer composition according to ...

Подробнее
Номер записи: 20
07-01-2016 дата публикации

HALOGEN-FREE CROSSLINKABLE RESIN COMPOSITION, CROSS-LINKED INSULATION WIRE AND CABLE

Номер: US20160002449A1
Автор: Hashimoto Mitsuru, Iwasaki Makoto, Kikuchi Ryutaro
Принадлежит:

A halogen-free crosslinkable resin composition includes a base polymer including a high density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of an ethylene-α-olefin copolymer modified with maleic anhydride, and 10 to 30 parts by mass of an ethylene-acrylic ester copolymer, and a metal hydroxide of which content is 120 to 200 parts by mass based on 100 parts by mass of the base polymer. 1. A halogen-free crosslinkable resin composition , comprising:a base polymer comprising a high density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of an ethylene-α-olefin copolymer modified with maleic anhydride, and 10 to 30 parts by mass of an ethylene-acrylic ester copolymer; anda metal hydroxide of which content is 120 to 200 parts by mass based on 100 parts by mass of the base polymer.2. The halogen-free crosslinkable resin composition according to claim 1 , wherein the ethylene-α-olefin copolymer modified with maleic anhydride has a glass transition point (Tg) of not more than −55 degrees C. by DSC method.3. The halogen-free crosslinkable resin composition according to claim 1 , wherein the ethylene-acrylic ester copolymer has an acrylic ester content of 10 to 30% by mass.4. The halogen-free crosslinkable resin composition according to claim 1 , wherein the metal hydroxide comprises a magnesium hydroxide.5. A cross-linked insulation wire claim 1 , comprising:a conductor; anda first insulating layer covering a periphery of the conductor,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the first insulating layer comprises the halogen-free crosslinkable resin composition according to .'}6. The cross-linked insulation wire according to claim 5 , further comprising a second insulating layer directly covering the conductor claim 5 ,wherein the second insulating layer comprises the halogen-free crosslinkable resin composition ...

Подробнее
Номер записи: 21
07-01-2016 дата публикации

RESIN COMPOSITION HAVING EXCELLENT SURFACE SMOOTHNESS

Номер: US20160002450A1
Автор: CHIBA Hiroki, MIZUNO Koichi, SHIRAI Tomoyuki
Принадлежит:

Solved is the following problem: a polyolefin resin including a film grade ethylene-α-olefin copolymer is excellent in economic efficiency, but has a narrow molecular weight distribution in consideration for strength and heat sealability, and therefore causes surface roughening to occur when applied to a covering material for an insulated electric wire or cable. Used is a polyolefin based resin composition in which, when the ratio (I/I) of the melt flow rate (MFR) (I) measured at 190° C. and a load of 10 kg to the MFR (I) measured at 190° C. and a load of 0.5 kg is defined as MFRR, MFRR≧43 is satisfied. 1. A polyolefin based resin composition for covering insulated electric wire and cable , wherein , when a ratio (I/I) of a melt flow rate (MFR) (I) measured at 190° C. and a load of 10 kg to an MFR (I) measured at 190° C. and a load of 0.5 kg is defined as MFRR , MFRR≧43 is satisfied.2. The polyolefin resin based composition for covering insulated electric wire and cable according to claim 1 , comprising at least two or more polyolefin based resins.3. The polyolefin based resin composition for covering insulated electric wire and cable according to claim 1 , wherein the two or more polyolefin based resins comprise at least one ethylene-α-olefin copolymer and at least one polypropylene (PP) based resin.4. The polyolefin based resin composition for covering insulated electric wire and cable according to claim 3 , wherein an MFR (190° C. and a load of 2.16 kg) of the PP based resin is 1 to 100 g/10 min.5. A resin covered electric wire claim 1 , wherein the polyolefin based resin composition for covering insulated electric wire and cable according to is used.6. A resin covered electric wire obtained by mixing the two or more polyolefin based resins recited in immediately above an extruder claim 2 , and feeding the resulting mixture into the extruder for forming.7. A resin covered electric wire obtained by supplying the PP based resin recited in as a pellet of a resin ...

Подробнее
Номер записи: 22
05-01-2017 дата публикации

INSULATING RESIN COMPOSITION AND INSULATED ELECTRIC WIRE

Номер: US20170004906A1
Автор: FUJITA Taro, NISHIKAWA Shinya, OCHI Yuji, SHINOMIYA Atsuko, Tanaka Shigeyuki
Принадлежит: Sumitomo Electric Industries, Ltd.

Provided is an insulated electric wire that mainly contains a polyolefin resin, has excellent flexibility, heat life, and waterproofness, and is used in wiring of vehicles such as automobiles, and an insulating resin composition used in forming an insulating layer of this insulated electric wire. The insulating resin composition contains a first copolymer, which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and which has a density less than 0.88 g/cm, a second copolymer which is a copolymer of ethylene and an acrylic acid ester or a methacrylic acid ester, a flame retardant, and a crosslinking aid. Also provided is a crosslinked body having a 2% secant modulus of 35 MPa or less at room temperature and an elastic modulus of 2 MPa or more at 150° C. 1. An insulating resin composition comprising: [{'sup': '3', 'the first copolymer being a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms, and having a density less than 0.88 g/cm,'}, 'the second copolymer being a copolymer of ethylene and an acrylic acid ester or a methacrylic acid ester; and, 'a resin comprising a first copolymer and a second copolymer at a first copolymer-to-second copolymer ratio (mass ratio) of 100:0 to 40:60,'}30 to 100 parts by mass of a flame retardant and 1 to 5 parts by mass of a crosslinking aid relative to 100 parts by mass of the resin.2. The insulating resin composition according to claim 1 , wherein the first copolymer is an ethylene-butene copolymer.3. The insulating resin composition according to claim 1 , wherein the second copolymer is an ethylene-ethyl acrylate copolymer.4. The insulating resin composition according to claim 1 , wherein the ratio of the first copolymer to the second copolymer is 80:20 to 40:60.5. A crosslinked body prepared by crosslinking a resin composition mainly containing a polyolefin resin claim 1 , wherein the crosslinked body has a 2% secant modulus of 35 MPa or less at room temperature ...

Подробнее
Номер записи: 23
07-01-2021 дата публикации

CORE WIRE FOR MULTI-CORE CABLES AND MULTI-CORE CABLE

Номер: US20210005347A1
Автор: FUJITA Taro, Ishikawa Masayuki, KOHORI Takaya, MATSUMURA Yutaka, Tanaka Shigeyuki
Принадлежит: Sumitomo Electric Industries, Ltd.

A core wire for multi-core cables includes a conductor obtained by twisting a plurality of elemental wires, and an insulating layer coated on an outer peripheral surface of the conductor. The insulating layer contains polyethylene-based resin as a main component, and the product of a linear expansion coefficient C1 of the insulating layer in the range of 25° C. to −35° C. and an elastic modulus E1 at −35° C., namely (C1×E1) is 0.01 MPaKor more and 0.90 MPaKor less. The melting point of the polyethylene-based resin is 80° C. or higher and 130° C. or lower. 1. A core wire for multi-core cables comprising:a conductor obtained by twisting a plurality of elemental wires; andan insulating layer coated on an outer peripheral surface of the conductor,the insulating layer containing polyethylene-based resin as a main component,{'sup': −1', '−1, 'the product of a linear expansion coefficient C1 of the insulating layer in a range of 25° C. to −35° C. and an elastic modulus E1 at −35° C., namely (C1×E1) being 0.01 MPaKor more and 0.90 MPaKor less, and'}the melting point of the polyethylene-based resin being 80° C. or higher and 130° C. or lower.2. The core wire for multi-core cables according to claim 1 , whereinthe insulating layer has an elastic modulus E2 of 100 MPa or more at 25° C.3. The core wire for multi-core cables according to claim 1 , wherein{'sup': −4', '−1, 'the insulating layer has a linear expansion coefficient C2 of 5.0×10Kor less in a range of 25° C. to 80° C.'}4. The core wire for multi-core cables according to claim 1 , wherein{'sup': 2', '2, 'the average area of the conductor in the cross section is 1.0 mmor more and 3.0 mmor less.'}5. The core wire for multi-core cables according to claim 1 , whereinthe average diameter of the plurality of elemental wires in the conductor is 40 μm or more and 100 μm or less, andthe number of the plurality of wires is 196 or more and 2450 or less.6. The core wire for multi-core cables according to claim 1 , whereinthe ...

Подробнее
Номер записи: 24
12-01-2017 дата публикации

CROSSLINKABLE POLYMERIC COMPOSITIONS WITH N,N,N',N',N",N"-HEXAALLYL-1,3,5-TRIAZINE-2,4,6-TRIAMINE CROSSLINKING COAGENT, METHODS FOR MAKING THE SAME, AND ARTICLES MADE THEREFROM

Номер: US20170009060A1
Автор: CAI Yu, Cogen Jeffrey M., Person Timothy J., Sengupta Saurav S., Sun Yabin, Zhang Hong Liang
Принадлежит:

Crosslinkable polymeric compositions comprising a thermoplastic, non-elastomer ethylene-based polymer, an organic peroxide, and a crosslinking coagent comprising N,N,N′,N′,N″,N″-hexaallyl-1,3,5-triazine-2,4,6-triamine. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables. 1. A crosslinkable polymeric composition , comprising:(a) a thermoplastic, non-elastomer ethylene-based polymer;(b) an organic peroxide; and(c) a crosslinking coagent comprising N,N,N′,N′,N″,N″-hexaallyl-1,3,5-triazine-2,4,6-triamine2. The crosslinkable polymeric composition of claim 1 , wherein said ethylene-based polymer is non-polar.3. The crosslinkable polymeric composition of claim 2 , wherein said ethylene-based polymer has no fluoromonomers incorporated therein.4. The crosslinkable polymeric composition of claim 1 , wherein said N claim 1 ,N claim 1 ,N′ claim 1 ,N′ claim 1 ,N″ claim 1 ,N″-hexaallyl-1 claim 1 ,3 claim 1 ,5-triazine-2 claim 1 ,4 claim 1 ,6-triamine and said organic peroxide are present in a coagent-to-peroxide weight ratio of greater than 1:1.5. The crosslinkable polymeric composition of claim 1 , wherein said ethylene-based polymer comprises a high-pressure low-density polyethylene; wherein said organic peroxide comprises dicumyl peroxide; wherein said crosslinkable polymeric composition further comprises one or more antioxidants.6. The crosslinkable polymeric composition of claim 1 , wherein said ethylene-based polymer is present in an amount ranging from 50 to 99 weight percent claim 1 , based on the entire crosslinkable polymeric composition weight; wherein said organic peroxide is present in an amount of less than 1.2 weight percent claim 1 , based on the entire crosslinkable polymeric composition weight; wherein said crosslinking coagent is present in an amount ranging from 0.01 to 15 weight percent claim 1 , based on the entire crosslinkable polymeric ...

Подробнее
Номер записи: 25
14-01-2021 дата публикации

Cable harness

Номер: US20210009052A1
Автор: Gen NISHINO, Moriyuki Shimizu, Toshinari Kobayashi
Принадлежит: Sumitomo Wiring Systems Ltd

A cable harness that has water-sealing properties includes a sheath that accommodates an ABS sensor cable and a parking brake cable. The ABS sensor cable and the parking brake cable branch apart at an end portion of the sheath. An integrally molded member includes, in an integrated manner, a water-sealing portion that seals the end portion of the sheath from water, and a bracket attachment portion that is attached to the bracket.

Подробнее
Номер записи: 26
14-01-2021 дата публикации

Cable harness

Номер: US20210009053A1
Автор: Gen NISHINO, Moriyuki Shimizu, Toshinari Kobayashi
Принадлежит: Sumitomo Wiring Systems Ltd

A cable harness that has water-sealing properties includes a sheath that accommodates an ABS sensor cable and a parking brake cable. The ABS sensor cable and the parking brake cable branch apart at an end portion of the sheath. An integrally molded member includes, in an integrated manner, a water-sealing portion that seals the end portion of the sheath from water, and a bracket attachment portion that is attached to the bracket.

Подробнее
Номер записи: 27
11-01-2018 дата публикации

POLYOLEFIN COMPOUNDS FOR CABLE COATINGS

Номер: US20180010008A1
Автор: Lee Day-Chyuan
Принадлежит:

Polymeric compositions comprising a blend of high-density polyethylene (“HDPE”) with ethylene vinyl acetate (“EVA”), and optionally with a carbon black and/or one or more other additives, where the polymeric compositions have certain melt-index and vinyl-acetate-content ranges to improve melt strength and processability. Such polymeric compositions can be employed in manufacturing coated conductors, such as fiber optic cables. 1. A coated conductor comprising:(a) a conductor; and(b) a polymeric composition surrounding at least a portion of said conductor,wherein said polymeric composition comprises a high-density polyethylene and an ethylene vinyl acetate,wherein said polymeric composition has a vinyl acetate content in the range of from 1.5 to 8 weight percent, based on the combined weight of said high-density polyethylene and said ethylene vinyl acetate,{'sub': '2', 'wherein said polymeric composition has a melt index (I) of 2.0 g/10 minutes or less.'}2. The coated conductor of claim 1 , wherein said polymeric composition has a vinyl acetate content in the range of from 1.9 to 6.0 weight percent claim 1 , based on the combined weight of said high-density polyethylene and said ethylene vinyl acetate.3. The coated conductor of claim 1 , wherein said polymeric composition has a melt index (I) in the range of from 1.4 to 1.88 g/10 minutes.4. The coated conductor claim 1 , wherein said polymeric composition has a high-shear viscosity (100 sec) that is at least 1% lower than the high-shear viscosity of an identical comparative polymeric composition claim 1 , except that said comparative polymeric composition does not contain ethylene vinyl acetate claim 1 , wherein said polymeric composition has a low-shear viscosity (0.1 sec) that is at least 1% higher than the low-shear viscosity of an identical comparative polymeric composition claim 1 , except that said comparative polymeric composition does not contain ethylene vinyl acetate.5. The coated conductor claim 1 , ...

Подробнее
Номер записи: 28
12-01-2017 дата публикации

RESIN COMPOSITION FOR AUTOMOTIVE CABLE MATERIAL AND CABLE USING THE SAME

Номер: US20170011816A1
Автор: CHOI Seung Woo, Hwang Dae Young, Jung Jae Ik
Принадлежит:

Disclosed are a resin composition for a cable material and a cable used for a vehicle and a method of manufacturing the cable thereof. In particularly, by controlling the components such as a polypropylene content, a flame retardant content and the like in a base resin, and containing a high crystalline homo polypropylene (PP) resin and a high crystalline block polypropylene resin in the base resin in a specific ratio, the resin composition provides excellent physical properties such as abrasion resistance and flexibility resistance and has reduced weight effect when a cable is manufactured using the resin composition. 1. A resin composition comprising:a mixture of a base resin and a magnesium hydroxide flame retardant;an antioxidant; anda lubricant,wherein the resin composition comprises an amount of about 2 to 5 parts by weight of the antioxidant and an amount of about 0.5 to 2 parts by weight of the lubricant with respect to 100 parts by weight of the mixture,wherein the mixture comprises an amount of about 40 to 60% by weight of the base resin and an amount of about 60 to 40% by weight of the magnesium hydroxide flame retardant, based on the total weight of the mixture,wherein a surface of the magnesium hydroxide flame retardant is treated with silane or aliphatic or polymeric fatty acid,wherein the base resin comprises 100 parts by weight of a high crystalline polypropylene resin, an amount of about 5 to 10 parts by weight of a modified polypropylene and an amount of about 15 to 20 parts by weight of an elastomer,wherein the high crystalline polypropylene resin comprises an amount of about 60 to 90% by weight of a high crystalline homo polypropylene resin and an amount of about 10 to 40% by weight of a high crystalline block polypropylene resin, based on the total weight of the high crystalline polypropylene resin.2. The resin composition of claim 1 , wherein the high crystalline polypropylene resin has a hardness (R Scale) of about 100 or greater claim 1 , a ...

Подробнее
Номер записи: 29
12-01-2017 дата публикации

HIGH-VOLTAGE CABLE

Номер: US20170011819A1
Автор: Kamp Heiko, Poppeö Siegfried
Принадлежит:

A high-voltage cable for electrostatically charging a coating agent in an electrostatic coating plant is provided. The cable includes a centrally arranged cable core and an electrically insulating jacket which sheaths the cable core. The cable core has a moderate electrical resistance according to the principles of the present disclosure. The cable core includes fibers that form a non-woven fabric, and at least one strip of the non-woven fabric of the cable core is twisted. 114.-. (canceled)15. A high-voltage cable for charging a coating agent in an electrostatic coating plant , the cable comprising:a radially central cable core having a moderate electrical resistance configured for use in an electrostatic coating plant for electrostatically charging a coating agent, the cable core including a plurality of fibers, the fibers forming a nonwoven fabric, at least one strip of the nonwoven fabric being twisted along the length of the cable; anda first electrically insulating jacket layer sheathing the cable core.16. The high-voltage cable of claim 15 , wherein the cable core further includes a film.17. The high-voltage cable of claim 16 , wherein the film is made of an electrically conductive material with a moderate electrical resistance configured for use in an electrostatic coating plant for electrostatically charging a coating agent.18. The high-voltage cable of claim 16 , wherein the film includes an electrically insulating material impregnated with electrically conductive carbon claim 16 , the film having a moderate electrical resistance configured for use in an electrostatic coating plant for electrostatically charging a coating agent.19. The high-voltage cable of claim 15 , wherein at least part of the cable core is made of an electrically conductive plastics material.20. The high-voltage cable of claim 15 , wherein at least one of the fibers and the nonwoven fabric are impregnated with carbon.21. The high-voltage cable of claim 15 , wherein the fibers of the ...

Подробнее
Номер записи: 30
10-01-2019 дата публикации

DIFFERENTIAL SIGNAL TRANSMISSION CABLE, MULTI-CORE CABLE, AND MANUFACTURING METHOD OF DIFFERENTIAL SIGNAL TRANSMISSION CABLE

Номер: US20190013559A1
Автор: Andoh Setsuo, Endo Yuju, SUENAGA Kazufumi, Sugiyama Takahiro, Tate Hisashi
Принадлежит:

Provided is a differential signal transmission cable, a multi-core cable, and a method of manufacturing a differential signal transmission cable that can suppress an increase in differential-to-common mode conversion quantity. The differential signal transmission cable includes two signal lines, an insulation layer covering a periphery of the two signal lines, and a plating layer covering the insulation layer. Differential-to-common mode conversion quantity of the differential signal transmission cable has a maximum value of −26 dB or less, in a frequency band of 50 GHz or less. In the method of manufacturing a differential signal transmission cable, dry ice blasting is performed on an outer peripheral surface of the insulation layer, and then corona discharge exposure is performed on the outer peripheral surface. 1. A differential signal transmission cable comprising:two signal lines;an insulation layer covering a periphery of the two signal lines; anda plating layer covering the insulation layer,differential-to-common mode conversion quantity of the differential signal transmission cable having a maximum value of −26 dB or less, in a frequency band of 50 GHz or less.2. The differential signal transmission cable according to claim 1 ,wherein the insulation layer bundle-covers the two signal lines.3. The differential signal transmission cable according to claim 1 ,wherein an outer edge of the insulation layer has a substantially oval or elliptical shape in a cross section orthogonal to an extending direction of the two signal lines.4. The differential signal transmission cable according to claim 1 ,wherein the plating layer has a thickness of 1 μm to 5 μm.5. The differential signal transmission cable according to claim 1 ,wherein a standard deviation of a thickness of the plating layer acquired at a total of sixteen points from four points in each of four cross sections perpendicular to an extending direction of the two signal lines is 0.8 μm or less.6. The ...

Подробнее
Номер записи: 31
10-01-2019 дата публикации

SIGNAL TRANSMISSION CABLE, MULTICORE CABLE, AND METHOD OF MANUFACTURING SIGNAL TRANSMISSION CABLE

Номер: US20190013560A1
Автор: Endo Yuju, Ishikawa Hiroshi, Sagawa Hideyuki, SUENAGA Kazufumi, Sugiyama Takahiro
Принадлежит:

A signal transmission cable includes a signal line, an insulation layer configured to cover the signal line, and a plating layer configured to cover the insulation layer. An arithmetic average roughness Ra of an outer peripheral surface of the insulation layer is between 0.6 μm and 10 μm inclusive. A method of manufacturing the signal transmission cable includes covering the signal line with the insulation layer, followed by conducting a dry-ice-blasting on the outer peripheral surface of the insulation layer, followed by conducting a corona discharge exposure process on the outer peripheral surface, and forming the plating layer on the outer peripheral surface. 1. A signal transmission cable comprising:a signal line;an insulation layer configured to cover the signal line; anda plating layer configured to cover the insulation layer,wherein an arithmetic average roughness Ra of an outer peripheral surface of the insulation layer is between 0.6 μm and 10 μm inclusive.2. The signal transmission cable according to claim 1 ,wherein a thickness of the plating layer is between 1 μm and 5 μm inclusive,wherein a standard deviation of the thickness of the plating layer is 0.8 μm or less, andwherein the standard deviation of the thickness of the plating layer is measured bytaking four cross sections of the signal line orthogonally to an axis of extension of the signal line,taking four random points on each cross section to make sixteen points in total, andmeasuring a thickness of the plating layer at each of the sixteen points and obtain a standard deviation, which is used as the standard deviation of the thickness of the plating layer.3. The signal transmission cable according to claim 1 ,wherein a contact angle on the outer peripheral surface of the insulation layer is 95° or less.4. The signal transmission cable according to claim 1 ,{'sup': '2', 'wherein an absolute value of adhesion-wetting surface free energy on the outer peripheral surface of the insulation layer is 66 ...

Подробнее
Номер записи: 32
15-01-2015 дата публикации

ELASTOMER COMPOSITION, AND INSULATED WIRE AND INSULATED CABLE USING THE SAME

Номер: US20150017441A1
Автор: Kikuchi Ryutaro, YAGUCHI Atsuro
Принадлежит:

An elastomer composition includes a base polymer including not less than 50 mass % of ethylene-α-olefin copolymer, and a talc that has a mass ratio of silicon to magnesium (Si/Mg) of 0.9 to 1.8 and is mixed in an amount of 100 to 250 parts by mass per 100 parts by mass of the ethylene-α-olefin copolymer. 1. An elastomer composition , comprising:a base polymer including not less than 50 mass % of ethylene-α-olefin copolymer; anda talc that has a mass ratio of silicon to magnesium (Si/Mg) of 0.9 to 1.8 and is mixed in an amount of 100 to 250 parts by mass per 100 parts by mass of the ethylene-α-olefin copolymer.2. The elastomer composition according to claim 1 , further comprising:an amide-based lubricant mixed in an amount of 0.1 to 2 parts by mass per 100 parts by mass of the ethylene-α-olefin copolymer; anda thiuram-based vulcanization retarder mixed in an amount of 0.1 to 1 part by mass per 100 parts by mass of the ethylene-α-olefin copolymer,wherein the mixed amount in total of the amide-based lubricant and the thiuram-based vulcanization retarder is not more than 2 parts by mass per 100 parts by mass of the ethylene-α-olefin copolymer.3. An insulated wire claim 1 , comprising:a conductor; andan insulation layer covering an outer periphery of the conductor,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the insulation layer comprises the elastomer composition according to and being crosslinked.'}4. An insulated cable claim 1 , comprising:at least one insulated wire comprising a conductor and an insulation layer; anda sheath covering an outer periphery of the at least one insulated wire,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the sheath comprises the elastomer composition according to and being crosslinked.'} The present application is based on Japanese patent application No. 2013-143881 filed on Jul. 9, 2013, the entire contents of which are incorporated herein by reference.1. Field of the InventionThe invention relates to an ...

Подробнее
Номер записи: 33
18-01-2018 дата публикации

HETEROPHASIC POLYMER COMPOSITION FOR CABLE INSULATION LAYER, CABLE INSULATION LAYER AND POWER CABLE INCLUDING THE SAME

Номер: US20180016429A1
Автор: JEONG Yeong Ho, KANG Hyoung Ku, LEE Dong Kwon, LEE June Ho, LEE Moon Seok, Suh Kwang Suck
Принадлежит: Huinnovation Co., Ltd.

Disclosed is a heterophasic polymer composition for environmentally friendly cable insulation layers that exhibits excellent electrical, mechanical, and thermal properties while realizing the flexibility, bendability, and impact resistance performance characteristics of polypropylene. The heterophasic polymer composition for cable insulation layers is configured such that propylene copolymer particles each having a predetermined size are dispersed in a polypropylene matrix. 1. A heterophasic polymer composition for cable insulation layers comprising a polypropylene matrix and a propylene copolymer dispersed in the polypropylene matrix ,wherein the propylene copolymer has an average particle diameter of 0.01 to 0.1 μm.2. The heterophasic polymer composition according to claim 1 ,wherein the polypropylene matrix is a homo polypropylene matrix.3. The heterophasic polymer composition according to claim 1 ,wherein the propylene copolymer comprises at least one monomer selected from a group consisting of ethylene and α-olefin having 4 to 8 carbons.4. The heterophasic polymer composition according to claim 1 ,wherein the propylene copolymer is 15 to 30% by weight relative to a total weight of the heterophasic polymer composition.5. The heterophasic polymer composition according to claim 1 ,wherein the propylene copolymer is ethylene propylene rubber (EPR).6. The heterophasic polymer composition according to claim 5 ,wherein the ethylene propylene rubber is configured such that a weight ratio of ethylene to propylene is 4:6 to 6:4.7. The heterophasic polymer composition according to claim 1 ,wherein the propylene copolymer has an average particle diameter of 0.03 to 0.07 μm.8. A cable insulation layer comprising the heterophasic polymer composition for cable insulation layers according to .9. The cable insulation layer according to claim 8 ,wherein the heterophasic polymer composition is equal to or greater than 15% by weight relative to a total weight of the cable ...

Подробнее
Номер записи: 34
19-01-2017 дата публикации

TRACER WIRE PRODUCT AND METHOD OF MANUFACTURE OF THE SAME

Номер: US20170018335A1
Автор: Hegan Robert F., Shelton Larry, Tiberio Patrick
Принадлежит:

A tracer wire product for use in detection of underground utility line or routes includes: a metallic wire configured to conduct an electrical signal for detection by an aboveground signal detector; a tin coating formed over the metallic wire; a non-fibrous insulating jacket of polyethylene over the tin coating; a hot melt adhesive at least partially over the polyethylene jacket; a high tenacity woven polyester strength element with water blocking fibers being formed over the hot melt adhesive and the polyethylene jacket; and, an abrasion resistant HDPE outer jacket formed over the high tenacity woven polyester strength element to form one of a circular or oval cross-sectional shape. Further, an apparatus and method for manufacturing the tracer wire product includes a source of a substantially flat polyester woven material; a source of a metal wire material; and an elongated forming tool including an input base into which the substantially flat polyester woven material is fed. The elongated forming tool also includes an outlet member downstream of the input base and including a restricted passage for receiving the metal wire material, and concurrently folding the substantially flat polyester woven material about the metal wire material. 1. An apparatus for manufacturing a tracer wire product , comprising:a source of a substantially flat polyester woven material;a source of a metal wire material;an elongated forming tool including an input base into which the substantially flat polyester woven material is fed;said elongated forming tool also including an outlet member downstream of said input base and including a restricted passage for receiving said metal wire material, and concurrently folding said substantially flat polyester woven material about said metal wire material.2. The apparatus of wherein said input base includes a substantially flat base upon which the substantially flat polyester woven material rests claim 1 , and the outlet member comprises a circular ...

Подробнее
Номер записи: 35
18-01-2018 дата публикации

ACCESSORY FOR HIGH VOLTAGE DIRECT CURRENT ENERGY CABLES

Номер: US20180019582A1
Автор: BOFFI Paolo, MARELLI Marco
Принадлежит: PRYSMIAN S.P.A.

The present invention relates to an accessory for high-voltage direct-current (HVDC) energy cables comprising: at least one element made from a crosslinked elastomeric polymer material, and at least one scavenging layer comprising zeolite particles. The zeolite particles are able to scavenge, very efficiently and irreversibly, the by-products deriving from the cross-linking reaction, so as to avoid space charge accumulation in the element during the accessory lifespan. Moreover, the zeolite particles can prevent the crosslinking by-products present in the element of a non-degassed accessory from migrating towards the insulating layer of the energy cable on which the accessory is mounted. 1100300. Accessory ( , ) for high voltage direct current (HVDC) energy cables comprising:{'b': 13', '15', '15', '33', '35, 'i': a,', 'b,, 'at least one element made from a crosslinked elastomeric polymer material (, , ), and'}{'b': 16', '36, 'at least one scavenging layer (, ) comprising zeolite particles.'}216361315153335a,b,. Accessory according to claim 1 , wherein said scavenging layer ( claim 1 , ) is applied in a radial external position with respect to the element made from a crosslinked elastomeric polymer material ( claim 1 , claim 1 , ).313151533351333151535a,b,a,b,. Accessory according to claim 2 , wherein the element made from a crosslinked elastomeric polymer material ( claim 2 , claim 2 , ) is a least one of an insulating element ( claim 2 , ) and a stress-relief cone ().416361333. Accessory according to claim 3 , wherein said scavenging layer ( claim 3 , ) is applied in direct contact with the insulating element ( claim 3 , ).51413331636. Accessory according to claim 3 , wherein an outer semiconducting layer () is interposed between the insulating element ( claim 3 , ) and the scavenging layer ( claim 3 , ).61636. Accessory according to claim 1 , wherein said scavenging layer ( claim 1 , ) is in a form selected from a polymeric sheath or a tape.7. Accessory according ...

Подробнее
Номер записи: 36
29-01-2015 дата публикации

PROCESS FOR PREPARING A CONDUCTIVE COMPOSITION USING A MASTERBATCH

Номер: US20150028267A1
Автор: Duc Michel, Lhost Olivier, Lodefier Philippe, Rousseaux Dimitri
Принадлежит:

The present invention relates to a composition comprising polystyrene or modified-polystyrene or a mixture thereof, said polystyrene or modified-polystyrene or mixture thereof further comprising carbon nanotubes; wherein the composition comprises a polyolefin; and wherein the composition comprises at most 1.90% by weight of carbon nanotubes, based on the total weight of the composition. The present invention also relates to a method for the preparation of the composition, wherein the carbon nanotubes are provided in polyolefin or styrenic copolymer masterbatch. 113-. (canceled)14. A process for preparing a conductive composition comprising:(a) providing a masterbatch comprising at least 5% by weight of carbon nanotubes based on a total weight of the masterbatch, and a polyolefin and/or styrenic copolymer;(b) blending the masterbatch of step (a) with polystyrene, modified-polystyrene, or a mixture thereof, and with a polyolefin, in amounts such that the conductive composition is obtained, wherein the conductive composition comprises at most 1.90% by weight of carbon nanotubes, based on the total weight of the conductive composition.15. The process according to claim 14 , wherein the conductive composition comprises at least 30% by weight of the polystyrene claim 14 , the modified-polystyrene claim 14 , or the mixture thereof claim 14 , based on the total weight of the conductive composition.16. The process according to claim 14 , wherein the conductive composition comprises at least 50% claim 14 , by weight of the polystyrene claim 14 , the modified-polystyrene claim 14 , or the mixture thereof claim 14 , based on the total weight of the conductive composition.17. The process according to claim 14 , wherein the conductive composition has a surface resistivity of at most 10Ohm/sq.18. The process according to claim 14 , wherein the conductive composition comprises at least 0.3% by weight of carbon nanotubes relative to the total weight of the conductive composition.19. ...

Подробнее
Номер записи: 37
24-01-2019 дата публикации

FLEXIBLE CROSSLINKED CABLE INSULATION AND METHODS FOR MAKING FLEXIBLE CROSSLINKED CABLE INSULATION

Номер: US20190027269A1
Автор: Bazen Jan, Brennan Gregory J., Chaudhary Bharat I., Fontaine Philip P., Hughes Morgan M., Li Pi Shan Colin, Madenjian Edward O., Tuberquia Juan C., Wickham Rennisha
Принадлежит:

Crosslinkable polymeric compositions comprising (a) 10 to 89 weight percent of an ethylene-based interpolymer having the following properties: (i) a density of 0.93 g/cm3 or less, (ii) a high-shear viscosity (V100) at 190 C and 10% strain of 1,200 Pa·s or less, (iii) a shear thinning ratio (V0.1/V100) at 190 C and 10% strain of at least 8, and (iv) a melt index (I) greater than 1 g/10 minutes; and (b) 10 to less than 90 weight percent of a filler, where the ethylene-based interpolymer is not prepared in a high-pressure reactor. Such crosslinkable polymeric compositions may be employed as insulation layers in flexible power cables. 1. A crosslinkable polymeric composition comprising: (i) a density of 0.93 g/cm3 or less,', '(ii) a high-shear viscosity (V100) at 190° C. and 10% strain of 1,200 Pa·s or less,', '(iii) a shear thinning ratio (V0.1/V100) at 190° C. and 10% strain of at least 8, and', '(iv) a melt index (2) greater than 1 g/10 minutes; and, '(a) 10 to 89 weight percent, based on the total weight of said crosslinkable polymeric composition, of an ethylene-based interpolymer having the following properties(b) 10 to less than 90 weight percent, based on the total weight of said crosslinkable polymeric composition, of a filler; andwherein said ethylene-based interpolymer is not prepared in a high-pressure reactor or process.2. The crosslinkable polymeric composition of claim 1 , wherein said crosslinkable polymeric composition is rendered crosslinkable by further comprising (c) an organic peroxide in an amount of at least 0.5 weight percent based on the total weight of said crosslinkable polymeric composition.3. The crosslinkable polymeric composition of claim 1 , wherein said ethylene-based interpolymer is an interpolymer selected from an ethylene/propylene copolymer claim 1 , an ethylene/1-octene copolymer claim 1 , and an ethylene/propylene/diene comonomer terpolymer.4. The crosslinkable polymeric composition of claim 1 , further comprising a high-pressure ...

Подробнее
Номер записи: 38
29-01-2015 дата публикации

COPOLYMERS FOR WIRE AND CABLE APPLICATIONS

Номер: US20150030852A1
Автор: Jan Dominique, Lambert Yves-Julien
Принадлежит:

Power wire or cables comprise polyethylene compositions prepared by use of a single site catalyst system and in particular comprise copolymers of ethylene and α-olefins prepared by use of metallocene catalyst systems. The polyethylene compositions deliver a unique combination of mechanical properties and processing behaviour. They are particularly suitable for insulating layers in low and medium voltage applications as well as for jacketing layers. 127-. (canceled)28. An insulating or a jacketing layer for wire or cable comprising as a base resin a copolymer of ethylene and alpha-olefin having the following properties as determined on said base resin prior to any reticulation or crosslinking:{'sup': '−3', '(i) a density in the range 0.900 to 0.940 g·cm,'}{'sub': '2', '(ii) a melt index (190° C./2.16 kg), MIfrom 4 to 8 g/10 min, and'}(iii) a comonomer distribution (CDBI) of >60%.29. An insulating or a jacketing layer according to wherein the copolymer has a density in the range 0.912 to 0.936 g·cm claim 28 , and preferably in the range 0.914 to 0.930{'sup': '−3', 'g/cm'}30. An insulating or a jacketing layer according to wherein the copolymer has a melt index in the range 4.5-6.0.31. An insulating or a jacketing layer according to wherein the copolymer has a CDBI in the range 60-95% and preferably in the range 70-90%.32. An insulating or a jacketing layer according to wherein the copolymer has a melt index ratio (I/I) in the range 19-29 claim 28 , preferably in the range 19-27 and most preferably in the range 20-25.33. An insulating or a jacketing layer according to wherein the copolymer has a melt elastic modulus G′(G′=500 Pa) in the range 20-50 Pa claim 28 , preferably in the range 22-46 Pa and most preferably in the range 22-32 Pa.34. An insulating or a jacketing layer according to wherein the copolymer has a Dow Rheology Index (DRI) in the range 0.05-0.40 claim 28 , preferably in the range 0.10-0.35 and most preferably in the range 0.10-0.30.35. An insulating or ...

Подробнее
Номер записи: 39
29-01-2015 дата публикации

CROSSLINKABLE HALOGEN-FREE RESIN COMPOSITION, CROSSLINKED MOLDED ARTICLE, INSULATED WIRE AND CABLE

Номер: US20150030853A1
Автор: Hashimoto Mitsuru, Iwasaki Makoto
Принадлежит:

A crosslinkable halogen-free resin composition includes a base polymer including at least one type of ethylene-vinyl acetate copolymer (EVA) and an acid-modified polyolefin resin having a glass-transition temperature (Tg) as measured by DSC of not more than −55° C. at a mass ratio of 70:30 to 99:1, and a metal hydroxide included in an amount of 100 to 250 parts by mass per 100 parts by mass of the base polymer. The at least one type of EVA has a melting temperature (Tm) as measured by DSC of not less than 70° C. The base polymer includes 25 to 50 mass % of a vinyl acetate (VA).

Подробнее
Номер записи: 40
28-01-2021 дата публикации

POLYMER COMPOSITION FOR W&C APPLICATION WITH ADVANTAGEOUS ELECTRICAL PROPERTIES

Номер: US20210027912A1
Автор: Bostrom Jan-Ove, Dominguez Gustavo, Englund Villgot, Farkas Andreas, Hagstrand Per-Ola, Nilsson Ulf, Smedberg Annika
Принадлежит:

The invention relates to a use of a polymer composition with improved DC electrical properties in a power cable layer and to a cable surrounded by at least one layer comprising the polymer composition. 1. A direct current (DC) power cable comprising a conductor surrounded by at least an inner semiconductive layer , an insulation layer , and an outer semiconductive layer , in that order , wherein at least one layer comprises a polymer composition comprising:(a) a polyolefin selected from the group consisting of a propylene homopolymer, a random copolymer of propylene with one or more comonomer(s), and a heterophasic copolymer of propylene with one or more comonomer(s), and(b) optionally a second polyolefin which is different from the polyolefin (a).2. The direct current (DC) power cable according to claim 1 , wherein the inner semiconductive layer comprises a first semiconductive composition claim 1 , the insulation layer comprises the polymer composition claim 1 , and the outer semiconductive layer comprises a second semiconductive composition.3. The direct current (DC) power cable according to wherein the outer semiconductive layer comprises the outer semiconductive layer comprises a non-crosslinked or crosslinked second semiconductive composition claim 1 , and the inner semiconductive layer comprises a non-crosslinked first semiconductive composition.4. The direct current (DC) power cable according to claim 1 , wherein the polymer composition has an electrical conductivity of 0.05 to 40 fS/m claim 1 , when measured according to DC conductivity method as described under “Determination Methods”.5. The direct current (DC) power cable according to claim 1 , wherein the amount of the polyolefin (a) is 95 to 100 wt % based on the combined weight of the polyolefin (a) and the optional second polyolefin (b).6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. The direct current (DC) power cable according to claim 1 , wherein the optional second polyolefin (b) is ...

Подробнее
Номер записи: 41
05-02-2015 дата публикации

ELECTRIC INSULATION CABLE WITH SHIELD

Номер: US20150034359A1
Автор: NAKAYAMA Akinari, SUGITA Keisuke
Принадлежит: HITACHI METALS, LTD.

There is provided an electric insulation cable with shield, including: conductors; an insulating layer provided on an outer periphery of the conductors; a braided shield provided on an outer periphery of the insulating layer; and a sheath provided on an outer periphery of the braided shield, wherein the sheath is made of a silane-crosslinked composition which is obtained by silane-crosslinking a non-halogen composition under a normal pressure, and the non-halogen composition includes 100 pts.mass of silane-grafted polymer obtained by graft copolymerizing a silane compound to the polymer including at least one of non-halogen rubber and ethylene-based copolymer, and includes 1 pts.mass or more and 10 pts.mass or less of an antioxidant. 1. An electric insulation cable with shield , comprising:conductors;an insulating layer provided on an outer periphery of the conductors;a braided shield provided on an outer periphery of the insulating layer; anda sheath provided on an outer periphery of the braided shield,wherein the sheath is made of a silane-crosslinked composition which is obtained by silane-crosslinking a non-halogen composition under a normal pressure, and the non-halogen composition contains 100 pts.mass of silane-grafted polymer obtained by graft copolymerizing a silane compound to the polymer including at least one of non-halogen rubber and ethylene-based copolymer, and includes 1 pts.mass or more and 10 pts.mass or less of an antioxidant.2. The electric insulation cable with shield according to claim 1 , wherein the non-halogen composition includes 1 pts.mass or more and 7.5 pts.mass or less of the antioxidant.3. The electric insulation cable with shield according to claim 1 , wherein the antioxidant includes a hindered phenol compound and a thioether compound.4. The electric insulation cable with shield according to claim 3 , wherein a ratio of the hindered phenol compound to the thioether compound is 1 or more and 6 or less.5. The electric insulation cable ...

Подробнее
Номер записи: 42
31-01-2019 дата публикации

HALOGEN-FREE FLAME RETARDANT COMPOSITIONS WITH IMPROVED TENSILE PROPERTIES

Номер: US20190031868A1
Автор: ALVES Marcio Teixeira, Chaudhary Bharat I., ZHANG Yichi
Принадлежит:

A composition for use in jacketing or insulation materials is disclosed, the composition comprising from 42 to 54 percent by weight of a halogen-free flame retardant, from 26 to 46 percent by weight of an ethylene alkyl acrylate copolymer, such as ethylene ethyl acrylate, optionally from 0 to 15 percent by weight of an ethylene-based polymer, optionally from 0 to 12 percent by weight of a coupling agent, and optionally from 0 to 1 percent by weight of an antioxidant. A cable insulation layer, a cable protective outer jacket, a cable core sheath, and cable comprising the jacketing material composition are also disclosed. Components comprising the composition exhibit balanced and improved melt rheological, tensile, and flame-retardant properties. 1. A composition comprising:42 to 54 percent by weight of a halogen-free flame retardant;26 to 46 percent by weight of an ethylene alkyl acrylate copolymer;1 to 15 percent by weight of an ethylene-based polymer;0 to 12 percent by weight of a coupling agent; and0 to 1.0 percent by weight of an antioxidant.2. The composition of claim 1 , wherein the halogen-free flame retardant is selected from the group consisting of aluminum hydroxide claim 1 , magnesium hydroxide claim 1 , calcium carbonate claim 1 , and combinations of two or more thereof.3. The composition of claim 1 , wherein the composition exhibits a tensile elongation greater than 300% claim 1 , a tensile strength greater than 1 claim 1 ,450 psi claim 1 , and a relative viscosity at 160° C. and stress of 16 claim 1 ,000 Pa claim 1 , not to exceed 4.0.4. The composition of claim 1 , wherein the ethylene-based polymer comprises subunits derived from ethylene and from Cthrough Cα-olefins.5. The composition of claim 4 , wherein the ethylene-based polymer has a melt index (I) of 1 to 10 g/10 min.6. The composition of claim 4 , wherein the ethylene-based polymer has a density of 0.86 to 0.96 g/cc.7. The composition of claim 1 , wherein the coupling agent is a maleic- ...

Подробнее
Номер записи: 43
02-02-2017 дата публикации

MULTILAYER INSULATED WIRE AND MULTILAYER INSULATED CABLE

Номер: US20170032867A1
Автор: Hashimoto Mitsuru, Iwasaki Makoto, KIBE Tamotsu, Kikuchi Ryutaro
Принадлежит:

A multilayer insulated wire includes a conductor, an inner insulation layer, and an outer insulation layer. A gel fraction of the inner insulation layer defined below is not less than 80%. A gel fraction of the outer insulation layer defined below is less than the gel fraction of the inner insulation layer and not less than 75%. An insulation covering layer including the inner and outer insulation layers is cross-linked and has a tensile modulus of not less than 500 MPa in a tensile test conducted at a tensile rate of 200 mm/min. Gel fraction (%)=(mass of inner or outer insulation layer after being immersed in xylene at 110° C. for 24 hours, then left at 20° C. and atmospheric pressure for 3 hours and vacuum-dried at 80° C. for 4 hours/mass of inner or outer insulation layer before immersion in xylene)×100 1. A multilayer insulated wire , comprising:a conductor;an inner insulation layer that covers the conductor and comprises a resin composition comprising a polyolefin as a main component; andan outer insulation layer that covers the inner insulation layer and comprises a resin composition comprising a polyolefin as a main component,wherein a gel fraction of the inner insulation layer defined below is not less than 80%,wherein a gel fraction of the outer insulation layer defined below is less than the gel fraction of the inner insulation layer and not less than 75%, and {'br': None, 'Gel fraction (%)=(mass of inner or outer insulation layer after being immersed in xylene at 110° C. for 24 hours, then left at 20° C. and atmospheric pressure for 3 hours and vacuum-dried at 80° C. for 4 hours/mass of inner or outer insulation layer before immersion in xylene)×100'}, 'wherein an insulation covering layer comprising the inner and outer insulation layers is cross-linked and has a tensile modulus of not less than 500 MPa in a tensile test conducted at a tensile rate of 200 mm/min.'}2. The multilayer insulated wire according to claim 1 , wherein the resin composition of the ...

Подробнее
Номер записи: 44
31-01-2019 дата публикации

HIGH-FREQUENCY FILTER HAVING A COAXIAL STRUCTURE

Номер: US20190036195A1
Автор: Nita Jens, SKIEBE Martin
Принадлежит: KATHREIN-WERKE KG

The invention relates to an improved high-frequency filter having at least one coaxial resonator is characterized by, among other things, the following features: the coaxial resonator comprises an outer conductor housing (), an outer conductor (′) thus being formed; an inner conductor () is arranged in the outer conductor housing (), which inner conductor is mechanically and galvanically connected to the outer conductor housing at one end of the inner conductor and ends in the direction of the outer conductor housing () or a housing cover () provided there that belongs to the outer conductor housing () at the opposite end of the inner conductor; the outer conductor housing () and the inner conductor () are made of electrically conductive material or are covered with an electrically conductive material; the end face () of the inner conductor () and/or the additional surface () of the inner conductor () adjacent thereto is completely or partially covered with an encasing material (), which encasing material () is made of a dielectric material; and the dielectric material has a relative permittivity εr that is greater than 1.2. 2. The high-frequency filter according to claim 1 , characterized in that the dielectric constant εr is greater than 1.3 claim 1 , particularly greater than 1.4 claim 1 , 1.5 claim 1 , 1.6 claim 1 , 1.7 claim 1 , 1.8 claim 1 , 1.9 claim 1 , 2 claim 1 , 2.1 claim 1 , 2.2 claim 1 , 2.3 claim 1 , 2.4 claim 1 , 2.5 claim 1 , 2.6 claim 1 , 2.7 claim 1 , 2.8 claim 1 , 2.9 claim 1 , and 3.0.321213a. The high-frequency filter according to or claim 1 , characterized in that the sheathing material () is designed as an injection-molded part () molded on and/or around the inner conductor ().421213b. The high-frequency filter according to or claim 1 , characterized in that the sheathing material () is designed as a molded part () mounted onto the inner conductor ().521321b. The high-frequency filter according to any one of to claim 1 , characterized in that ...

Подробнее
Номер записи: 45
30-01-2020 дата публикации

ASSEMBLY AND METHOD FOR SEALING A BUNDLE OF WIRES

Номер: US20200035383A1
Автор: Bharadwaj Kavitha, DAGA Vijay, Gao Ting, Sethi Sunny
Принадлежит:

A method for sealing a bundle of wires includes providing an adhesive material having a viscosity of less than about 300 Pa·s at the installation temperature. The method further includes forming a structure from the adhesive and inserting a plurality of wires into the structure. A first amount of heat is applied to the structure in a first heating operation. The first amount of heat being higher than an ambient temperature and lower than a softening temperature of the structure. Subsequently, a second amount of heat is applied in a second heating operation to the adhesive structure to thereby fully melt the adhesive structure and cause the adhesive of the structure to fill voids between the plurality of wires to thereby seal the wires. Application of the first amount of heat during the first operation to the structure facilitates improved melt uniformity of the structure during the second heating operation.

Подробнее
Номер записи: 46
07-02-2019 дата публикации

ELECTRICAL LEAD

Номер: US20190043643A1
Автор: KOEPPENDOERFER ERWIN, SCHILL MARKUS
Принадлежит:

An electrical lead has a lead core composed of a plurality of individual conduction elements and surrounded by a jacket of multiple plies that are formed by extrusion. An inner ply is formed of a swellable material. An outer ply surrounds the inner ply. Upon penetration of moisture, the swellable material of the inner ply swells up and fills out interstices between the conduction elements. 1. An electrical lead , comprising:a lead core formed of a plurality of individual conduction elements;a jacket formed of a plurality of plies surrounding said lead core, said plurality of plies of said jacket including an inner ply directly surrounding said lead core and an outer ply surrounding said inner ply, said inner and outer plies being extruded plies;said inner ply being formed of a swellable material, which, upon moisture penetration, swells up and fills out interstices between said conduction elements.2. The electrical lead according to claim 1 , wherein said outer ply consists of a material that is harder than the material of said inner ply.32. The electrical lead according to claim 2 , wherein said outer ply is harder by a factor of at least than said inner ply.4. The electrical lead according to claim 1 , wherein said inner ply has a Shore hardness in a range from 35 Shore A to 50 Shore D.5. The electrical lead according to claim 1 , wherein said outer ply has a Shore hardness in a range from 92 Shore A to 85 Shore D.6. The electrical lead according to claim 1 , wherein said inner ply has a first wall thickness and said outer ply has a second wall thickness claim 1 , said second wall thickness being greater than said first wall thickness.7. The electrical lead according to claim 1 , wherein said inner ply consists of a compounded formulation comprising a superabsorbent and a thermoplastic material.8. The electrical lead according to claim 7 , wherein a fraction of said superabsorbent within said compounded formulation is in a range from 10 vol % to 80 vol %.9. The ...

Подробнее
Номер записи: 47
15-02-2018 дата публикации

Water-tight power cable with metallic screen rods

Номер: US20180047481A1
Автор: Bo Johansson, Carl-Johan DALIN
Принадлежит: Prysmian SpA

A multi-phase power cable includes: a plurality of phase cores, each including an insulated electric conductor; a screen assembly including a metallic screen rod; a moisture barrier metallic sheet enclosing the plurality of phase cores and the screen rod; an outer jacket radially outer to the moisture barrier metallic sheet; and a multilayer arrangement including a first, second and third semiconducting water swellable layer surrounding the phase cores and in radial internal position with respect to the moisture barrier metallic sheet and in electric contact therewith, the screen assembly being arranged between the second and third semiconducting water swellable layers.

Подробнее
Номер записи: 48
08-05-2014 дата публикации

Cable Structure for Underwater Equipment

Номер: US20140126865A1
Автор: Chang Chin-Yung
Принадлежит:

A cable structure for underwater equipment is disclosed, which comprises a waterproof layer, a tension-resistant layer, a buoyant layer, and a communication thread. The tension-resistant layer is enveloped in the waterproof layer. The buoyant layer is enveloped in the tension-resistant layer. The communication thread is enveloped in the buoyant layer. In use, the waterproof layer can protect the communication thread from contacting with water. The tension-resistant layer can enhance the tensile strength of the cable structure, so that the cable structure can be protected from damages upon being pulled. The buoyant layer can provide buoyancy for the cable structure, so that the cable structure can avoid excessive cable being submerged in the water, so that entwining or entangling of the submerged cable section can be prevented. Accordingly, the present invention is a useful contrivance that can avoid cable entanglement and has a tension-resistant capability. 1. A cable structure for underwater equipment , comprising:at least one waterproof layer;at least one tension-resistant layer enveloped in said waterproof layer;at least one buoyant layer enveloped in said tension-resistant layer; andat least one communication thread enveloped in said buoyant layer.2. A cable structure for underwater equipment as claimed in claim 1 , wherein said waterproof layer is made of thermoplastic polyurethane material.3. A cable structure for underwater equipment as claimed in claim 1 , wherein said tension-resistant layer is made of aromatic polyamide fiber material or polyethylene polymer fiber material.4. A cable structure for underwater equipment as claimed in claim 1 , wherein said tension-resistant layer is made of a combination of aromatic polyamide fiber material and polyethylene polymer fiber material.5. A cable structure for underwater equipment as claimed in claim 1 , wherein said buoyant layer is made of thermoplastic rubber and hollow glass micro-spheres claim 1 , the ratio ...

Подробнее
Номер записи: 49
25-02-2016 дата публикации

RESIN COMPOSITION AND ELECTRIC WIRE USING SAME

Номер: US20160053079A1
Автор: KIMURA Shuichi
Принадлежит:

A resin composition comprises a base resin containing an ethylene-acrylic acid ester copolymer as a main component; a lubricant dispersed in the base resin, the lubricant containing a metal soap; and a metal hydroxide in a range from 5 to 60 mass %. Such a resin composition can develop good flexibility and abrasion resistance. That is to say, the electric wire to which the resin composition of the present invention is applied can develop excellent flexibility and abrasion resistance. 1. A resin composition comprising:a base resin containing an ethylene-acrylic acid ester copolymer as a main component;a lubricant dispersed in the base resin, the lubricant containing a metal soap; anda metal hydroxide in a range from 5 to 60 mass %.2. An electric wire comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an insulating coating layer containing the resin composition according to ; and'}a conductor coated with the insulating coating layer.3. The electric wire according to claim 2 ,wherein a cross-sectional area of the conductor is 3 sq or more, anda thickness of the insulating coating layer is 0.32 mm or more.4. The electric wire according to claim 2 , further comprising:a shield layer coating the insulating coating layer; anda sheath layer coating the shield layer. This application is a Continuation of PCT Application No. PCT/JP2014/061736, filed on Apr. 25, 2014, and claims the priority of Japanese Patent Application No. 2013-095227, filed on Apr. 30, 2013, the content of all of which is incorporated herein by reference.1. Technical FieldThe present invention relates to a resin composition usable for an insulating coating of an electric wire, and to an electric wire using this resin composition.2. Related ArtFor a wire harness cabled in an automobile, miniaturization thereof is required in order to contribute weight reduction and space saving of the automobile. Therefore, for an electric wire for use in the wire harness, diameter thinning is required. As a ...

Подробнее
Номер записи: 50
26-02-2015 дата публикации

FLAME-RETARDANT HALOGEN-FREE POLY(PHENYLENE ETHER) COMPOSITIONS

Номер: US20150056450A1
Автор: Shan Wei
Принадлежит: SABIC INNOVATIVE PLASTICS IP B.V.

Disclosed are polymer compositions, comprising: 1. A polymer composition , comprising:(a) 10 to 40 weight percent of a poly(phenylene ether)-polysiloxane copolymer; wherein the poly(phenylene ether)-polysiloxane copolymer is a mixture of a poly(phenylene ether) homopolymer and a poly(phenylene ether)-poly(phenylene ether)-polysiloxane block copolymer;(b) 5 to 25 weight percent of a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene;(c) 0 to 10 weight percent of a polybutene;(d) 30 to 60 weight percent of magnesium hydroxide;(e) 0 to 10 weight percent of an anti-UV agent;{'sub': 3', '12, '(f) 1 to 40 weight percent of a copolymer of ethylene and a C-Calpha-olefin; and'}(g) 0 to 30 weight percent of a polyolefin homopolymer.2. (canceled)3. The composition of claim 1 , wherein the poly(phenylene ether)-polysiloxane copolymer has an intrinsic viscosity of 0.385-0.425 dL/g and 4-6 percent siloxane incorporation.5. The composition of claim 1 , wherein the anti-UV agent is present and selected from the group consisting of a benzotriazole-type UV absorber claim 1 , a triazine-type UV absorber claim 1 , a hindered amine light stabilizer claim 1 , and combinations thereof.6. The composition of claim 1 , wherein the magnesium hydroxide is a high purity magnesium hydroxide that has been surface treated with an amino polysiloxane.8. The composition of claim 1 ,wherein the composition comprises 15 to 25 weight percent of the poly(phenylene ether)-polysiloxane copolymer;wherein the composition comprises 10 to 25 weight percent of the hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene;wherein the composition comprises 3 to 8 weight percent of the polybutene;wherein the composition comprises 30 to 45 weight percent of the magnesium hydroxide;wherein the composition comprises 2 to 5 weight percent of the anti-UV agent;{'sub': 3', '12, 'wherein the composition comprises 1 to 10 weight percent of the copolymer of ...

Подробнее
Номер записи: 51
25-02-2016 дата публикации

HEATED EXTENSION CORD

Номер: US20160055941A1
Автор: GOLDADE CHAD ANTHONY, KRELL TRENT NORMAN, PEDERSON TRENT JASON
Принадлежит:

The present invention relates to a cord structured to connect a power source to a power take-off. The cord comprises a conductor extending along a length of the cord between opposite ends thereof, an insulator secured in surrounding relation to the conductor and extending along a length thereof, at least one resistance wire connected to the insulator and extending along at least a majority of a length of the insulator, a switching structure connected to the resistance wire and structured to define an active connection of the resistance wire in current receiving relation to the power source, and a temperature sensor structured to sense temperature exteriorly of the insulator. The temperature sensor is connected to the switching structure and is operative therewith to establish the active connection on determination of a predetermined ambient temperature. The resistance wire heats the insulator upon establishment of the active connection. 1. An extension cord structured to connect an electrical power source to a power take-off , said extension cord comprising:a primary conductor extending along a length of the extension cord between opposite ends thereof,a primary insulator secured in surrounding relation to said primary conductor and extending along a length thereof,at least one elongated resistance wire connected to said primary insulator and extending along at least a majority of a length of said primary insulator,a switching structure connected to said resistance wire and structured to define an active connection of said resistance wire in current receiving relation to the power source,a temperature sensor disposed and structured to sense ambient temperature exteriorly of said primary insulator, said temperature sensor connected to said switching structure and operative therewith to establish said active connection on determination of a predetermined ambient temperature, andsaid one resistance wire disposed and structured to transfer heat to at least said primary ...

Подробнее
Номер записи: 52
15-05-2014 дата публикации

Thiobis Phenolic Antioxidant/Polyethylene Glycol Blends

Номер: US20140134436A1
Автор: Adamczyk Antoni, Cogen Jeffrey M., Dunchus Neil W., Emley Daniel, Song Susan
Принадлежит: Union Carbide Chemicals & Plastics Technology LLC

Thiobis phenolic antioxidants are efficiently dry or melt blended with a tree-resistant, crosslinkable polyethylene by first forming a blend, preferably a dry blend, of the antioxidant with a polyalkylene glycol (PAG), and then mixing the blend with the polyethylene. The incorporation of thiobis phenolic antioxidant and PAG blend into polyethylene provides the PE with high oxidative induction time (OIT) which is a measure of the oxidative stability of the PE. 120-. (canceled)21. An additive mixture consisting essentially of at least one thiobis phenolic antioxidant and at least one polyalkylene glycol (PAG) of a weight average molecular weight of at least 1 ,000 in which the thiobis phenolic antioxidant and PAG are present at a thiobis phenolic antioxidant to PAG weight ratio from 0.1:1 to 2:1.22. The mixture of in which the PAG has a weight average molecular weight of at least 10 claim 21 ,000 and the thiobis phenolic antioxidant is at least one of 2 claim 21 ,2′-thiobis(6-t-butyl-4-methylphenol); 4 claim 21 ,4′-thiobis(2-methyl-6-t-butylphenol); 2 claim 21 ,2′-thiobis 4-octylphenol; and 4 claim 21 ,4′-thiobis-(2-tert-butyl-5-methyl-phenol) (TBM6).23. The mixture of in which the PAG is polyethylene glycol.24. A crosslinkable polyethylene (PE) composition comprising a PE claim 21 , the mixture of claim 21 , and an organic peroxide.25. The crosslinkable PE composition of in which the mixture of comprises from 0.1 to 3 weight percent of the composition.26. The crosslinkable PE composition of in which the organic peroxide is present in an amount of 0.3 to 3 parts by weight of PE.27. The crosslinkable PE composition of in which the PE is at least one of LDPE claim 24 , LLDPE claim 24 , ULDPE claim 24 , VLDPE and HDPE.28. The crosslinkable PE composition of in which the PE is a high pressure claim 24 , low density homopolymer of ethylene.29. A cable comprising an electrical conductor surrounded by a composition comprising:A. A crosslinked, high pressure, low density ...

Подробнее
Номер записи: 53
21-02-2019 дата публикации

CORE ELECTRIC WIRE FOR MULTI-CORE CABLE AND MULTI-CORE CABLE

Номер: US20190057795A1
Автор: HIRAI Takayuki, KOHORI Takaya, Mayama Yuhei, NISHIKAWA Shinya, OKAWA Hiroyuki, Tanaka Shigeyuki
Принадлежит: Sumitomo Electric Industries, Ltd.

Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mmto 3.0 mm. An average diameter of the element wires in the conductor is preferably from 40 μm to 100 μm, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires. The insulating layer preferably comprises as a principal component a copolymer of ethylene and an α-olefin having a carbonyl group. 18-. (canceled)9: A core electric wire for a multi-core cable , comprising: a conductor obtained by twisting element wires; and an insulating layer that covers an outer periphery of the conductor , whereinin a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is no less than 5%, anda modulus of elasticity E of the insulating layer at −35° C. is no less than 1,000 MPa and no greater than 3,500 MPa.10: The core electric wire for a multi-core cable according to claim 9 , wherein a linear expansion coefficient C of the insulating layer in a temperature range of 25° C. to −35° C. is no less than 1×10Kand no greater than 2.5×10K.11: The core electric wire for a multi-core cable according to claim 9 , whereinin the transverse cross section of the conductor, the percentage of the area occupied by the void regions among the element wires is no greater than 20%.12: The core electric wire for ...

Подробнее
Номер записи: 54
01-03-2018 дата публикации

COATED ELECTRIC WIRE AND MULTI-CORE CABLE FOR VEHICLES

Номер: US20180061525A1
Автор: KOHORI Takaya, OKAWA Hiroyuki
Принадлежит: Sumitomo Electric Industries, Ltd.

A multi-core cable for vehicles comprises two power lines, two signal lines, two electric wires, and a jacket. The two power lines are the same in size and material, each comprise an insulation layer composed of an inner layer and an outer layer, and are excellent in abrasion resistance and bending resistance. The two signal lines are the same in size and material and the two lines are twisted as a set to constitute a twisted pair of the signal lines. The two electric wires are the same in size and material and the two wires are twisted as a set to constitute a twisted pair of the electric wires. The two power lines, the twisted pair of the signal lines, and the twisted pair of the electric wires are integrally twisted. 1. A coated electric wire comprising a conductor and a resin-made insulation layer that covers the conductor:{'sup': 2', '2, 'cross-sectional area of the conductor being 1.5 mmor more and 3.0 mmor less,'}the insulation layer covering the conductor in a thickness of 0.3 mm or more and 0.5 mm or less, andthe insulation layer having an inner layer and an outer layer that is provided on the outer periphery of the inner layer,wherein one of the inner layer and the outer layer contains a copolymer of ethylene and an α-olefin having a carbonyl group and the other of the inner layer and the outer layer is composed of a polyolefin or a fluororesin.2. The coated electric wire according to claim 1 , wherein the inner layer contains the copolymer of ethylene and an α-olefin having a carbonyl group as a main component.3. The coated electric wire according to claim 1 , wherein the inner layer is composed of a polyolefin or a fluororesin.4. The coated electric wire according to claim 1 , wherein claim 1 , of the inner layer and the outer layer claim 1 , the layer containing the copolymer of ethylene and an α-olefin having a carbonyl group as a main component is thicker than the layer composed of a polyolefin or a fluororesin and the thickness of the layer composed ...

Подробнее
Номер записи: 55
01-03-2018 дата публикации

HIGH FREQUENCY TRANSMISSION CABLE

Номер: US20180062234A1
Автор: Hu Jen-Hsu, LEE HSING-YU
Принадлежит:

The present invention provides a high frequency transmission cable which includes at least one conductor, an insulating layer, a polyolefin resin layer, and a shielding layer. The at least one conductor is covered with the insulating layer. The polyolefin resin layer is coated on an external surface of the insulating layer by a low-k dielectric adhesive layer, and the shielding layer is coated on an external surface of the polyolefin resin layer by another low-k dielectric adhesive layer, wherein the low-k dielectric adhesive layers have a dielectric constant (Dk) less than 3 and a dissipation factor (Df) less than 0.01. Whereby, the high frequency transmission cable can provide high frequency data transmission quality, and can meet the requirement of miniaturization. 1. A high frequency transmission cable , comprising:at least one conductor;an insulation layer laminated over the at least one conductor;a polyolefin resin layer attached to the insulation layer by a first low-k dielectric adhesive layer; anda shielding layer attached to the polyolefin resin layer by another first low-k dielectric adhesive layer;wherein the polyolefin resin layer has a thickness less than 100 μm, and the first low-k dielectric adhesive layers each have a dielectric constant (Dk) less than 3 and a dissipation factor (Df) less than 0.01.2. The high frequency transmission cable of claim 1 , wherein the polyolefin resin layer is a PE layer.3. The high frequency transmission cable of claim 1 , wherein the insulation layer includes a second low-k dielectric adhesive layer and two PET layers attached to two opposite surfaces of the second low-k dielectric adhesive layer claim 1 , and wherein the at least one conductor is encompassed by the second low-k dielectric adhesive layer and is between the PET layers.4. The high frequency transmission cable of claim 3 , wherein the second low-k dielectric adhesive layer has a dielectric constant (Dk) less than 3 and a dissipation factor (Df) less than ...

Подробнее
Номер записи: 56
02-03-2017 дата публикации

INSULATED ELECTRIC WIRE AND CABLE USING HALOGEN-FREE FLAME-RETARDANT RESIN COMPOSITION

Номер: US20170062092A1
Автор: Fujimoto Kenichiro, Hashimoto Mitsuru, Iwasaki Makoto
Принадлежит:

An insulated electric wire of the present disclosure includes a conductor and an insulation layer provided on an outer circumference of the conductor. The insulation layer includes a base polymer comprising ethylene-vinyl acetate copolymer and a metal hydroxide. The base polymer has a vinyl acetate content of 25% by mass or more and less than 50% by mass, and the metal hydroxide includes magnesium hydroxide. 1. An insulated electric wire comprising:a conductor; andan insulation layer provided on an outer circumference of the conductor, a base polymer comprising ethylene-vinyl acetate copolymer, the base polymer having a vinyl acetate content of 25% by mass or more and less than 50% by mass; and', 'a metal hydroxide comprising magnesium hydroxide,, 'wherein the insulation layer comprises tensile properties such that a tensile strength is 10 MPa or more and a tensile elongation is 125% or more in an initial tensile test in accordance with EN60811-1-1;', 'a heat resistance such that a tensile strength change rate is within ±30% and a tensile elongation change rate is within ±40% in a heat resistance test in accordance with EN60811-1-2;', 'an oil resistance such that an elongation change rate is within ±40% in an oil resistance test in accordance with EN60811-2-1; and', 'low-temperature properties such that a tensile elongation is 30% or more in a low-temperature test in accordance with EN60811-1-4, and, 'wherein the insulation layer has a flame retardancy such that, in a combustion test in accordance with IEC60332-1, a distance from a bottom of an upper holder to a carbonized portion of the insulated electric wire is 50 mm or more in an upper part of the insulated electric wire and 540 mm or less in a lower part of the insulated electric wire;', 'low smoke emission properties such that a transmissivity is 70% or more in a smoke emission test in accordance with EN61034-2;', 'a flexibility such that, when the insulated electric wire is placed on a test stand so as to ...

Подробнее
Номер записи: 57
02-03-2017 дата публикации

CABLE, ESPECIALLY DATA TRANSFER CABLE, WIRE, AND METHOD FOR PRODUCING SUCH A WIRE

Номер: US20170062096A1
Автор: KOEPPENDOERFER ERWIN
Принадлежит:

A cable, especially a data transfer cable, has at least one wire having an inner conductor and a wire sheath which has been applied directly thereto. The wire sheath has a dielectric layer composed of a foamed uncrosslinked thermoplastic polymer, preferably polyethylene or polypropylene, and the dielectric layer is encased by an outer skin layer composed of unfoamed, chemically crosslinked polyethylene. The specific wire sheath leads to a distinct improvement in soldering properties. Additionally specified are a corresponding wire and a production process therefor. 1. A cable , comprising:at least one wire formed with an inner conductor and a wire sheath applied directly to said at least one wire;said wire sheath having a dielectric layer composed of a foamed uncrosslinked thermoplastic polymer;an outer skin layer composed of unfoamed, chemically crosslinked polyethylene encasing said dielectric layer.2. The cable according to claim 1 , wherein said thermoplastic polymer of said dielectric layer is a foamed polyethylene.3. The cable according to claim 1 , wherein said thermoplastic polymer of said dielectric layer is a foamed polypropylene.4. The cable according to claim 1 , wherein said outer skin layer has a thickness in a range from 70 to 150 μm.5. The cable according to claim 1 , wherein said outer skin layer has a level of crosslinking G of greater than 50%.6. The cable according to claim 1 , wherein said outer skin layer consists of unfoamed claim 1 , silane-crosslinked polyethylene.7. The cable according to claim 1 , wherein said wire sheath has an inner skin layer manufactured from polyethylene.8. The cable according to claim 7 , wherein said inner skin layer is a layer manufactured from a crosslinked polyethylene.9. The cable according to claim 7 , wherein said inner skin layer has a thickness in a range from 25 to 100 μm.10. The cable according to claim 1 , being a coaxial cable having an outer conductor surrounding said inner conductor and being spaced ...

Подробнее
Номер записи: 58
22-05-2014 дата публикации

HALOGEN-FREE HEAT AGING-RESISTANT FLAME-RETARDANT RESIN COMPOUND AND WIRE AND CABLE USING THE SAME

Номер: US20140141241A1
Автор: Fujimoto Kenichiro, NAKAMURA Yoshiaki, NISHI Hajime, Segawa Kentaro
Принадлежит: HITACHI METALS, LTD.

A halogen-free heat aging-resistant flame-retardant resin compound includes a mixture of 100 parts by mass of polyolefin-based resin, 100 to 250 parts by mass of metal hydroxide, and 2 to 5 parts by mass of an antioxidant including a first antioxidant having a melting point of not less than 200 degrees Celsius and a mean particle diameter of not greater than 10 μm solely or a combination with a second antioxidant, and the mixture is cross-linked. 1. A halogen-free heat aging-resistant flame-retardant resin compound , comprising:a mixture of 100 parts by mass of polyolefin-based resin, 100 to 250 parts by mass of metal hydroxide, and 2 to 5 parts by mass of an antioxidant including a first antioxidant having a melting point of not less than 200 degrees Celsius and a mean particle diameter of not greater than 10 μm solely or in combination with a second antioxidant, and the mixture being cross-linked.2. The halogen-free heat aging-resistant flame-retardant resin compound according to claim 1 , wherein the polyolefin-based resin is at least one selected from the group consisting of polypropylene claim 1 , high-density polyethylene claim 1 , linear low-density polyethylene claim 1 , very low-density polyethylene claim 1 , low-density polyethylene claim 1 , α-olefin (co)polymer claim 1 , ethylene-vinyl acetate copolymer claim 1 , ethylene ethyl acrylate copolymer claim 1 , ethylene-propylene copolymer rubber claim 1 , and ethylene-propylene-diene ternary copolymer rubber.3. The halogen-free heat aging-resistant flame-retardant resin compound according to claim 1 , wherein the metal hydroxide is magnesium hydroxide or aluminum hydroxide.4. The halogen-free heat aging-resistant flame-retardant resin compound according to claim 1 , wherein the first antioxidant is 1 claim 1 ,3 claim 1 ,5-tris(3′-5′-di-tert-butyl-4′-hydroxybenzyl)isocyanurate and the second antioxidant is at least one selected from the group consisting of pentaerythrityl-tetrakis[3-[3 claim 1 ,5-di-tert- ...

Подробнее
Номер записи: 59
12-03-2015 дата публикации

ELECTRICALLY INSULATING MATERIAL, PARTICULARLY FOR HIGH VOLTAGE GENERATOR

Номер: US20150069289A1
Автор: Jedlitschka Hans
Принадлежит: GENERAL ELECTRIC COMPANY

An electrically insulating material for high voltage generators is provided. The electrically insulating material comprises a polymer based dielectric material filled with nanoparticles, wherein the voltage at which partial discharges start in the polymer based dielectric material is greater than the voltage at which partial discharges start in an unfilled polymer based dielectric material. 1. An electrically insulating material for high voltage generators , the electrically insulating material comprising:a polymer based dielectric material filled with nanoparticles, wherein the voltage at which partial discharges start in the polymer based dielectric material is greater than the voltage at which partial discharges start in an unfilled polymer based dielectric material.2. The material according to claim 1 , wherein the nanoparticles are electrically conducting.3. The material according to claim 1 , wherein the nanoparticles comprise carbon nanotubes.4. The material according to claim 3 , wherein the nanoparticles further comprise nano-oxides of titanium.5. The material according to claim 3 , wherein the nanoparticles further comprise nanoparticles of boron nitrite.6. The material according to claim 1 , wherein the polymer comprises polypropylene.7. The material according to claim 1 , wherein the polymer comprises polyethylene.8. The material according to claim 1 , wherein the quantity of nanoparticles does not exceed 1% by weight of the polymer based dielectric material.9. The material according to claim 1 , wherein the dielectric permittivity of the polymer based dielectric material is between about 2.2 and about 3.0.10. The material according to claim 9 , wherein the dielectric permittivity of the polymer based dielectric material is between about 2.3 and about 2.8.9. The material according to claim 1 , having a thermal conductivity greater than about 0.6 W·m·K.10. A high voltage generator comprising an electrically insulating material claim 1 , the electrically ...

Подробнее
Номер записи: 60
10-03-2016 дата публикации

INSULATION LAYER FOR CABLES

Номер: US20160071628A1
Автор: Dix Albrecht, Gahleitner Markus, Johansson Audrey Frenot, Klimke Katja, Robinson James Elliott, Tranchida Davide, Watson Ann
Принадлежит:

The present invention is directed to a new cable having at least one insulation layer, to a process for producing such cable as well as to the use of a polymeric-nucleating agent for increasing the crystallization temperature of a polymer composition being part of an insulation layer of such a cable and the use of such a cable as communication cable and/or electrical cable. 1. A cable having at least one insulation layer comprising a polymer composition (PC) comprising{'sub': 4', '10, '(a) at least 94 wt. %, based on the total weight of the polymer composition (PC), of a crystalline polypropylene (PP) homo- or copolymer having a melt flow rate according to ISO 1133 (230° C./2.16 kg) in the range of 1.0 to 10.0 g/10 min and a comonomer content of below 5.0 wt. %, the comonomers are ethylene and/or a Cto Cα-olefin,'}(b) 0.5 to 5 wt. %, based on the total weight of the polymer composition (PC), of an adhesion promoter (AP) being a polar modified polypropylene (PM-PP) homo- or copolymer,(c) 0.0001 to 1.0 wt. %, based on the total weight of the polymer composition (PC), of a polymeric α-nucleating agent (pNA), and(d) optionally 0.02 to 1.0 wt. %, based on the total weight of the polymer composition (PC), of a soluble α-nucleating agent (sNA).2. The cable according to claim 1 , wherein polymer composition (PC)(a) comprises only the polymeric α-nucleating agent (pNA) and the soluble α-nucleating agent (sNA) as α-nucleating agents; or(b) comprises only the polymeric α-nucleating agent (pNA) as α-nucleating agent.3. The cable according to claim 1 , wherein the polymer composition (PC) and/or the crystalline polypropylene (PP) homo- or copolymer has/have a melting temperature Tm as determined by differential scanning calorimetry (DSC) in the range of 155° C. to 170° C.4. The cable according to claim 1 , wherein the polymer composition (PC) and/or the crystalline polypropylene (PP) homo- or copolymer has a crystallization temperature Tc as determined by differential scanning ...

Подробнее
Номер записи: 61
09-03-2017 дата публикации

FLAME RETARDANT CABLE FILLERS AND CABLES

Номер: US20170069408A1
Автор: Gagnon John P.
Принадлежит:

Flame retardant fiber optic and electrically conductive cables having halogen-free flame retardant cable filler materials. 1. A fiber optic or electrically conductive cable comprising one or more coated wires or fiber optic filaments , a flame retardant cable filler in the form of a continuous yarn , fiber , filament , web , strip , tape or rod and formed of a polyolefin composition having incorporated therein from about 0.5 to 5 percent by weight of at least one halogen free NOR hindered amine flame retardant , at least one NOROL hindered amine flame retardant or a combination thereof , based on the combined weight of the hindered amine flame retardant and the polyolefin , and a sheath encasing the foregoing.2. The cable of wherein the flame retardant cable filler material is intertwined with one or more internal structural components of the cable.4. The cable of wherein the hindered amine flame retardant is present in an amount of from about 1 to about 2.5 weight percent based on the combined weight of the flame retardant and the polyolefin.5. The cable of wherein the polyolefin consists essentially of a homopolymer or copolymer of wholly olefin monomers or a blend of homo- and/or co-polyolefins comprised of wholly olefin monomers.6. The cable of wherein the polyolefin is selected from polyethylene claim 1 , polypropylene claim 1 , ethylene-propylene copolymer claim 1 , polyethylene-polypropylene blends claim 1 , and thermoplastic olefin polymer (TPO).7. The cable of wherein the polyolefin is a foamed polyolefin.8. The cable of wherein the foamed polyolefin has a density reduction of from about 20% to 60%.9. The cable of wherein the polyolefin cable filler is fibrillated.10. The cable of wherein the polyolefin cable filler is fibrillated.11. The cable of wherein the cable filler is in the form of a yam or a web material rolled into a cylinder shape having a denier of from 800 to 50 claim 1 ,000.12. The cable of wherein the cable filler is in the form of a fiber ...

Подробнее
Номер записи: 62
19-03-2015 дата публикации

Composition for wire protective member, wire protective member, and wiring harness

Номер: US20150075861A1
Автор: Kenji Ito, Masashi Sato
Принадлежит: AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd, Sumitomo Wiring Systems Ltd

A composition for a wire protective member with heat resistance, flame retardancy, and resistance against both a calcium chloride and a braided wire; a wire protective member and a wire harness using the composition. The composition for a wire protective member is produced by including a polypropylene having a propylene monomer constituting 50 to 95 percent by mass of monomers forming a polymer, a melt flow rate of 0.5 to 5 g/10 min, and a melting point of 150 degrees C. or more; a bromine-based flame retardant and an antimony trioxide as a flame retarder; a phenol-based antioxidant as a heat resistance life improving agent; and a metal deactivator, wherein the propylene has a tensile strength of 20 to 35 MPa and a Charpy impact strength of 10 kJ/m 2 or more at 23 degrees C.

Подробнее
Номер записи: 63
11-03-2021 дата публикации

POLYOLEFIN COMPOSITION FOR CABLE INSULATION

Номер: US20210074447A1
Автор: BAUDIER VINCENT, Biondini Gisella, Cavalieri Claudio, Flenniken Cindy, Galvan Monica, Lee Chun D.
Принадлежит: BASELL POLIOLEFINE ITALIA S.R.L.

A cable article made from or containing a polyolefin composition made from or containing 1. A cable article comprising:a polyolefin composition comprisingfrom 20.0 wt % to 80.0 wt % of component T1) being an interpolymer of ethylene and less than 7 wt %, of a polymerizable comonomer selected from the group consisting of unsaturated esters and hydrolyzable silane monomers;from 0.5 wt % to 5.0 wt % of a peroxide; and [{'sub': A', 'A', 'A, 'A) 5-35% by weight of a propylene homopolymer containing 5% by weight or less of a fraction soluble in xylene at 25° C. (XS), or a propylene ethylene copolymer containing 90% by weight or more of propylene units; containing 10% by weight or less of a fraction soluble in xylene at 25° C. (XS), both the amount of propylene units and of the fraction XSbeing referred to the weight of A);'}, {'sub': 3', '8', 'B', 'B, 'B) 20-50% by weight; of a copolymer of ethylene and a C-Calpha-olefin containing from 0.1% to 20% by weight of alpha-olefin units and containing 25% by weight or less; of a fraction soluble in xylene at 25° C. (XS), both the amount of alpha-olefin units and of the fraction XSbeing referred to the weight of (B); and'}, {'sub': C', 'C, 'C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units and containing from 40% to 95% by weight of a fraction soluble in xylene at 25° C. (XS), both the amount of ethylene units and of the fraction XSbeing referred to the weight of (C);'}], 'from 20.0 wt % to 80.0 wt % of component T2) comprising'}the amounts of (A), (B) and (C) being referred to the total weight of (A)+(B)+(C), the sum of the amount of (A)+(B)+(C) being 100,wherein the cable article is selected from the group consisting of cable insulation and cable jacketing.2. The cable article according to claim 1 , wherein in component T2:Component A ranges from 10% by weight to 30% by weight;Component B ranges from 25% by weight to 45% by weight; andComponent C ranges from 35% ...

Подробнее
Номер записи: 64
11-03-2021 дата публикации

Electric cable with improved thermal conductivity

Номер: US20210074451A1
Автор: CHARRIER Dimitri, MAZEL Christelle, MERLE Daphné, PEREGO Gabriele
Принадлежит:

A cable is provided having at least one electrically insulating layer obtained from a polymer composition with at least one polypropylene-based thermoplastic polymer material and at least one inorganic filler selected from aluminium oxide, a hydrated aluminium oxide, magnesium oxide, zinc oxide, and a mixture thereof; and a method for making the cable. 1. Electric cable comprising:at least one elongated electrically conducting element andat least one electrically insulating layer obtained from a polymer composition comprising at least one polypropylene-based thermoplastic polymer material and at least one inorganic filler,wherein the inorganic filler is selected from aluminium oxide, a hydrated aluminium oxide, magnesium oxide, zinc oxide, and a mixture thereof.2. Electric cable according to claim 1 , wherein the inorganic filler is aluminium oxide.3. Electric cable according to claim 1 , wherein the polymer composition comprises at least 1 wt % of inorganic filler claim 1 , relative to the total weight of the polymer composition.4. Electric cable according to claim 1 , wherein the inorganic filler is in the form of particles ranging in size from 0.01 to 6 μm.5. Electric cable according to claim 1 , wherein the polypropylene-based thermoplastic polymer material comprises a propylene copolymer P.6. Electric cable according to claim 5 , wherein the propylene copolymer Pis a random propylene copolymer or a heterophase propylene copolymer.7. Electric cable according to claim 1 , characterized in that the polypropylene-based thermoplastic polymer material comprises a random propylene copolymer and a heterophase propylene copolymer claim 1 , or two different heterophase propylene copolymers.8. Electric cable according to claim 5 , wherein the polypropylene-based thermoplastic polymer material further comprises an olefin homopolymer or copolymer P.9. Electric cable according to claim 1 , wherein the polymer composition further comprises a dielectric liquid.10. Electric ...

Подробнее
Номер записи: 65
17-03-2016 дата публикации

SIGNAL CABLE AND WIRE HARNESS

Номер: US20160078981A1
Автор: Kumada Taketo
Принадлежит:

A signal cable is provided with a pair of power supply wires and a pair of signal wires. Each of the pair of the power supply wires is provided with a conductor and an insulator with which the conductor of the power supply wire is coated. Each of the pair of the signal wires comprises a conductor and an insulator with which the conductor of the signal wire is coated. The pair of the power supply wires and the pair of the signal wires are respectively disposed diagonally. The power supply wires and the signal wires are collectively twisted together, and the conductors of the power supply wires and the conductors of the signal wires are respectively twisted together in a state that strains of the conductors of the power supply wires and the conductors of the signal wires are within a range of an elastic region. 1. A signal cable comprising:a pair of power supply wires; anda pair of signal wires,wherein each of the pair of the power supply wires comprises:a conductor; andan insulator with which the conductor of the power supply wire is coated,wherein each of the pair of the signal wires comprises:a conductor; andan insulator with which the conductor of the signal wire is coated,wherein the pair of the power supply wires and the pair of the signal wires are respectively disposed diagonally,wherein the power supply wires and the signal wires are collectively twisted together, andwherein the conductors of the power supply wires and the conductors of the signal wires are respectively twisted together in a state that strains of the conductors of the power supply wires and the conductors of the signal wires are within a range of an elastic region.2. The signal cable according to claim 1 ,wherein the conductors of the power supply wires and the conductors of the signal wires are made of annealed copper, andwherein the conductors of the power supply wires and the conductors of the signal wires are twisted together in a state that the strains of the conductors of the power ...

Подробнее
Номер записи: 66
07-03-2019 дата публикации

CORE ELECTRIC WIRE FOR MULTI-CORE CABLE AND MULTI-CORE CABLE

Номер: US20190074108A1
Автор: HIRAI Takayuki, KOHORI Takaya, Mayama Yuhei, NISHIKAWA Shinya, OKAWA Hiroyuki, Tanaka Shigeyuki
Принадлежит: Sumitomo Electric Industries, Ltd.

Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mmto 3.0 mm. An average diameter of the element wires in the conductor is preferably from 40 μm to 100 μm, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires. The insulating layer preferably comprises as a principal component a copolymer of ethylene and an α-olefin having a carbonyl group. 18-. (canceled)9: A core electric wire for a multi-core cable , comprising: a conductor obtained by twisting element wires; and an insulating layer that covers an outer periphery of the conductor , whereinin a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is no less than 5%, and{'sup': −5', '−1', '−4', '−1, 'a linear expansion coefficient C of the insulating layer in a temperature range of 25° C. to −35° C. is no less than 1×10Kand no greater than 2.5×10K.'}10: The core electric wire for a multi-core cable according to claim 9 , whereinin the transverse cross section of the conductor, the percentage of the area occupied by the void regions among the element wires is no greater than 20%.11: The core electric wire for a multi-core cable according to claim 9 , wherein an average area of the conductor in the transverse cross section is no less than 1.0 mmand no greater than 3.0 mm. ...

Подробнее
Номер записи: 67
26-03-2015 дата публикации

POLYPROPYLENE BLENDS AND PROCESSES FOR PRODUCING POLYMERIC COMPOSITIONS

Номер: US20150087787A1
Автор: Geussens Theo E., Stevens Gary, Sutton Simon J, Vaughan Alun
Принадлежит:

Polymer blends of polypropylene homopolymer and propylene-α-olefin interpolymer. Processes for producing polymeric compositions comprising control-cooling heated blends of polypropylene and propylene-α-olefin interpolymer. Such polymeric compositions can be employed in forming coated wires and cables. 1. A process for preparing a thermoplastic polymeric composition , said process comprising:(a) heating a polymer blend comprising a polypropylene homopolymer and a propylene-α-olefin interpolymer to a melt temperature of greater than 140° C. and at least the melting temperature of either the polypropylene homopolymer or the propylene-α-olefin interpolymer, whichever is greater, for a time sufficient to form a polymer melt blend; and (i) non-control-cooling said polymer melt blend from said melt temperature to an initial cooled temperature in the range of from 140 to 125° C.,', '(ii) control-cooling said polymer melt blend at an average cooling rate in the range of from 0.1 to 30° C. per minute from said initial cooled temperature to an intermediate cooled temperature in the range of from 110 to 100° C., and', '(iii) cooling, by either control-cooling or non-control-cooling, said polymer melt blend from said intermediate cooled temperature to ambient temperature, thereby forming said polymeric composition., '(b) cooling said polymer melt blend from said melt temperature down to ambient temperature, wherein said cooling comprises2. The process of claim 1 , wherein said polymeric composition has an alternating current (“AC”) breakdown strength that is at least 5% greater than an otherwise identical but quench-cooled polymeric composition claim 1 , as measured on 100 micrometer thick films in accordance with ASTM D-149.3. The process of claim 1 , wherein said polymeric composition has an AC breakdown strength of at least 100 kV/mm claim 1 , as measured on 100 micrometer thick films in accordance with ASTM D-149.4. The process of claim 1 , wherein said polypropylene ...

Подробнее
Номер записи: 68
31-03-2022 дата публикации

MOISTURE-CURABLE POLYOLEFIN FORMULATION

Номер: US20220098432A1
Автор: Cogen Jeffrey M., Person Timothy J., Sun Yabin, Talreja Manish, Zhang Kainan
Принадлежит:

A moisture-curable polyolefin formulation comprising a (hydrolyzable silyl group)-functional polyolefin prepolymer and a condensation-cure catalyst system comprising and/or made from mixture of a compound that is a carboxamidine or a guanidine and a compound that is a cobalt acetylacetonate or a zinc acetylacetonate, wherein each compound independently is unsubstituted or substituted. Also, methods of making and using same, a cured polyolefin made therefrom, and articles containing or made from same. Also, condensation-cure catalyst systems useful therein. 1. A moisture-curable polyolefin formulation comprising:(A) a (hydrolyzable silyl group)-functional polyolefin prepolymer; and{'sub': ['2', '3', '2'], '#text': '(B) a condensation-cure catalyst system comprising a mixture made by contacting a compound that is a carboxamidine or a guanidine and is unsubstituted or substituted (collectively called “(aza)carboxamidine”) with a compound that is a cobalt acetylacetonate coordination complex or a zinc acetylacetonate coordination complex, wherein each acetylacetonate independently is unsubstituted or substituted with from 1 to 5 alkyl groups, wherein each alkyl group is unsubstituted (collectively called “Co,Zn (alkyl)acetylacetonate”); wherein the Co,Zn (alkyl)acetylacetonate is selected from a cobalt(II) ((alkyl)acetylacetonate), a cobalt(III) ((alkyl)acetylacetonate), and a zinc(II) ((alkyl)acetylacetonate);'}wherein the amount of (A) is from 79.0 to 99.99 weight percent (wt %) and the amount of (B) is from 21.0 to 0.01 wt %, respectively, of the moisture-curable polyolefin formulation; andwherein the (B) condensation-cure catalyst system is characterized by an (aza)carboxamidine/Co,Zn (alkyl)acetylacetonate molar ratio of from 15 to 0.15.2. The moisture-curable polyolefin formulation of wherein the (A) (hydrolyzable silyl group)-functional polyolefin prepolymer is characterized by any one of limitations (i) to (iii): (i) each hydrolyzable silyl group is ...

Подробнее
Номер записи: 69
25-03-2021 дата публикации

CROSSLINKABLE COMPOSITION WITH ANTIOXIDANT AND METHANE FORMATION AND ARTICLE

Номер: US20210087358A1
Автор: Englund Villgot, ERIKSSON Virginie, NILSSON Daniel, Smedberg Annika
Принадлежит:

The invention relates to a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B≤B, wherein Bis 0.12, when measured prior to crosslinking according to method ASTM D6248-98, the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z≤Z≤Z, wherein Zis 0.005 and Zis 2.0, and the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, based on the total amount (100 wt %) of the polymer composition, and W≤W≤W, wherein Wis 0.005 and Wis 1.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications. 1. A polymer composition comprising:a polyethylene, a crosslinking agent, and antioxidant(s), [{'sub': 1', '1, 'the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B≤B, wherein Bis 0.12, when measured prior to crosslinking according to method ASTM D6248-98,'}, {'sub': 1', '2', '1', '2, 'the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z≤Z≤Z, wherein Zis 0.005 and Zis 2.0; and'}, {'sub': 1', '2', '1', '2, 'the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, based on the total amount (100 wt %) of the polymer composition, and W≤W≤W, wherein Wis 0.005 and Wis 1.0;'}, 'with the proviso that the antioxidants with CAS Number 152261-33-1 and CAS Number 193098-40-7 are excluded., 'characterized in that2. The polymer composition according to claim 1 , wherein the antioxidant(s) is/are hindered amine light stabilizers (HALS).7. The polymer composition according to claim 1 , ...

Подробнее
Номер записи: 70
31-03-2022 дата публикации

Insulated electric wire and wire harness

Номер: US20220102026A1
Автор: Kenichiro Araki, Toyoki Furukawa
Принадлежит: AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd, Sumitomo Wiring Systems Ltd

An insulated electric wire that has a superior water-stopping performance and has a configuration in which, even if water enters the insulated electric wire, the water is unlikely to stay inside the insulated electric wire, and a wire harness containing such an insulated electric wire. An insulated electric wire contains: an exposed portion in which an insulation covering is removed from the outer circumference of a conductor; in which the insulation covering covers the outer circumference of the conductor, and a water-stopping portion that is provided in an area extending from a part of the exposed portion to a part of the first covered portion, and in which gaps between the elemental wires constituting the conductor are filled with a water-stopping agent. A region of the second covered portion is a non-waterproof end that has a void between the elemental wires and/or between the conductor and the insulation covering.

Подробнее
Номер записи: 71
12-03-2020 дата публикации

REINFORCED ELECTRIC WIRE AND METHODS OF MAKING THE SAME

Номер: US20200082959A1
Автор: Cao Xiaofeng
Принадлежит:

Aspects of the present invention relate to reinforced electric wires, particularly reinforced electric wires as used in holiday lighting such as Christmas light strings. In some embodiments, the reinforced electric wire can comprise a conductor, a reinforcing string or one or more reinforcing threads, and an insulator jacket. In some embodiments, the conductor comprises a single conductor strand. In some embodiments, the conductor comprises a plurality of conductor strands. In some embodiments, the wire comprises an insulator jacket having a plurality of channels therein, where a conductor is passed through the center channel, and reinforcing threads are passed through the other channels. Methods of making wires in accordance with various embodiments are also provided herein. 1. A light string comprising: a first plurality of conductor strands,', 'a first plurality of reinforcing threads, each reinforcing thread of the first plurality of reinforcing threads being disposed in a respective gap of a first plurality of gaps, the respective gaps of the first plurality of gaps each disposed between at least two conductors of the first plurality of conductors, and', 'a first insulator jacket covering the first plurality of conductor strands and the first plurality of reinforcing threads and in contact with a subset of the first plurality of conductor strands and a subset of the first plurality of reinforcing threads;, 'a first wire comprising a second plurality of conductor strands,', 'a second plurality of reinforcing threads, each reinforcing thread of the second plurality of reinforcing threads being disposed in a respective gap of a second plurality of gaps, the respective gaps of the second plurality of gaps each disposed between at least two conductors of the second plurality of conductors, and', 'a second insulator jacket covering the second plurality of conductor strands and the second plurality of reinforcing threads and in contact with a subset of the second ...

Подробнее
Номер записи: 72
29-03-2018 дата публикации

PROCESS FOR CROSSLINKING POLYPROPYLENE

Номер: US20180086887A1
Автор: Beek Waldo Joseph Elisabeth, Talma Auke Gerardus, VAN DER SCHUUR Jan Martijn
Принадлежит:

Process for crosslinking polypropylene comprising the steps of (a) treating a mixture of (i) polypropylene, (ii) a maleimide-functionalized mono-azide and/or a citraconimide-functionalized mono-azide, and (iii) a radical scavenger selected from the group consisting of hydroquinone, hydroquinone derivatives, benzoquinone, benzoquinone derivatives, catechol, catechol derivatives, 2,2,6,6-tetramethylpiperidinooxy (TEMPO), TEMPO derivatives, and combinations thereof, at a temperature in the range 120-250° C. to form a functionalized polypropylene, and (b) reacting the functionalized polypropylene with a peroxide at a temperature in the range 150-350° C. 1. Process for crosslinking polypropylene comprising the steps ofa. treating a mixture of (i) polypropylene, (ii) a maleimide-functionalized mono-azide and/or a citraconimide-functionalized mono-azide, and (iii) a radical scavenger selected from the group consisting of hydroquinone, hydroquinone derivatives, benzoquinone, benzoquinone derivatives, catechol, catechol derivatives, 2,2,6,6-tetramethylpiperidinooxy (TEMPO), TEMPO derivatives, and combinations thereof, at a temperature in the range 120-250° C. to form a functionalized polypropylene, andb. reacting the functionalized polypropylene with a peroxide at a temperature in the range 150-350° C.2. Process according to wherein the radical scavenger is selected from the group consisting of quinone claim 1 , t-butyl hydroquinone (TBHQ) claim 1 , 2 claim 1 ,5-ditertiary-butylhydroquinone (DTBHQ) claim 1 , 2-methylhydroquinone (toluhydroquinone claim 1 , THQ) claim 1 , p-benzoquinone claim 1 , catechol claim 1 , 4-methoxyphenol 4-tert-butylcatechol claim 1 , 2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethylpiperidinooxy (TEMPO) claim 1 , and 4-hydroxy-2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethylpiperidin-1-oxyl (OH-TEMPO) 4-methoxy-2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethylpiperidin-1-oxyl (4-methoxy-TEMPO) claim 1 , 4-carboxy-2 claim 1 ,2 claim 1 ,6 claim 1 ,6- ...

Подробнее
Номер записи: 73
02-04-2015 дата публикации

FLAME-RETARDANT RESIN COMPOSITION, FLAME-RETARDANT HEAT-SHRINKABLE TUBE, AND FLAME-RETARDANT INSULATED ELECTRIC WIRE

Номер: US20150093529A1
Автор: FUJITA Taro, Hayami Hiroshi, NISHIKAWA Shinya, Okabe Shohei
Принадлежит:

Provided are a halogen-free flame-retardant resin composition containing a metal hydroxide as a flame retardant, the resin composition having good flame retardancy even when a mixing proportion of the metal hydroxide is reduced and having good print quality, a flame-retardant heat-shrinkable tube formed by using the flame-retardant resin composition, and a flame-retardant insulated electric wire including an insulating coating formed by using the flame-retardant resin composition. The flame-retardant resin composition contains a thermoplastic resin, a metal hydroxide, and a modified silicone having, at an end thereof, a functional group having a carbon-carbon double bond. A content of the metal hydroxide is 85 to 190 parts by mass relative to 100 parts by mass of the thermoplastic resin, and a content of the modified silicone is 0.05% to 5% by mass relative to the metal hydroxide. The flame-retardant heat-shrinkable tube is formed by using the flame-retardant resin composition. The flame-retardant insulated electric wire includes an insulating coating formed by using the flame-retardant resin composition. 1. A flame-retardant resin composition comprising a thermoplastic resin; a metal hydroxide; and a modified silicone having , at an end thereof , a functional group having a carbon-carbon double bond , wherein a content of the metal hydroxide is 85 to 190 parts by mass relative to 100 parts by mass of the thermoplastic resin , and a content of the modified silicone is 0.05% to 5% by mass relative to the metal hydroxide.2. The flame-retardant resin composition according to claim 1 , wherein the thermoplastic resin is a polyolefin.3. The flame-retardant resin composition according to claim 2 , wherein the thermoplastic resin is a mixture containing an ethylene-vinyl acetate copolymer and polyethylene in a range of 30:70 to 100:0.4. The flame-retardant resin composition according to claim 3 , wherein the thermoplastic resin is an ethylene-vinyl acetate copolymer.5. The ...

Подробнее
Номер записи: 74
02-04-2015 дата публикации

Polyisobutylene-Based Encapsulant for use with Electronic Components

Номер: US20150093536A1
Автор: Bhakta Satish, Fitzloff Brian, Klemmensen Cory, Markevicius Gediminas, Mueller Matt
Принадлежит: ITRON, INC.

An encapsulant for use with electronic components. The encapsulant includes a polyisobutylene, a tackifier, a polymer, and a thermoplastic elastomer. In one example, the encapsulant is applied to an electronic component at a temperature ranging from about 100° C. to about 150° C. to provide a moisture barrier when the encapsulant cools. 1. An encapsulant for use with electronic components , comprising:a polyisobutylene;a tackifier;a polymer; anda thermoplastic elastomer.2. The encapsulant of claim 1 , wherein the polyisobutylene is present in an amount ranging from about 50% by weight to about 95% by weight of the encapsulant.3. The encapsulant of claim 1 , wherein the tackifier is present in an amount ranging from about 3% by weight to about 25% by weight of the encapsulant.4. The encapsulant of claim 1 , wherein the tackifier includes a hydrocarbon resin; a glycol ester of partially hydrogenated rosin; a thermoplastic claim 1 , acid resin; or a thermoplastic ester resin.5. The encapsulant of claim 1 , wherein the polymer is present in an amount ranging from about 5% by weight to about 26% by weight of the encapsulant.6. The encapsulant of claim 1 , wherein the polymer includes a polyolefin or an ethylene-propylene copolymer.7. The encapsulant of claim 1 , wherein the thermoplastic elastomer is present in an amount ranging from about 0.1% by weight to about 6% by weight of the encapsulant.8. The encapsulant of claim 1 , further comprising an antioxidant claim 1 , wherein the antioxidant is present in an amount ranging from about 0.05% by weight to about 0.15% by weight of the encapsulant.9. The encapsulant of claim 1 , wherein the encapsulant exhibits a percent weight gain of less than about 1% by weight over a period of about 200 days at a temperature of about 35° C. and a relative humidity of about 95%.10. A method of forming an encapsulant on an electronic component claim 1 , comprising:heating a polyisobutylene, a tackifier, a polymer, and a thermoplastic ...

Подробнее
Номер записи: 75
25-03-2021 дата публикации

ELECTRICAL RIBBON CABLE

Номер: US20210090766A1
Автор: Gundel Douglas B.
Принадлежит:

Ribbon cables including a plurality of spaced apart substantially parallel conductors extending along a length of the cable and arranged along a width of the cable, and first and second insulative layers disposed on opposite sides of and substantially coextensive with the plurality of conductors along the length and width of the cable are described. Each insulative layer may be adhered to the conductors and may include alternating substantially parallel thicker and thinner portions extending along the length of the cable. The thicker portions of the first and second insulative layers are substantially aligned in one to one correspondence. Each corresponding thicker portion of the first and second insulative layers have at least one conductor in the plurality of conductors disposed therebetween. The thicker portions may have an effective dielectric constant less than 2. 1. A ribbon cable , comprising:a plurality of spaced apart substantially parallel conductors extending along a length of the cable and arranged along a width of the cable; andfirst and second insulative layers disposed on opposite sides of and substantially coextensive with the plurality of conductors along the length and width of the cable, each insulative layer adhered to the conductors and comprising alternating substantially parallel thicker and thinner portions extending along the length of the cable, the thicker portions of the first and second insulative layers substantially aligned in one to one correspondence, each corresponding thicker portions of the first and second insulative layers having at least one conductor in the plurality of conductors disposed therebetween,wherein in at least one transverse cross-section of the cable, each conductor in the plurality of conductors is disposed on an unstructured major surface of at least one of the first and second insulative layers.2. The ribbon cable of claim 1 , wherein in at least one transverse cross-section of the cable claim 1 , each ...

Подробнее
Номер записи: 76
31-03-2016 дата публикации

Insulated conductor assembly and method of its manufacturing

Номер: US20160093418A1
Автор: Anders Gatu, Anders LINDROTH, Joakim JÖRGENSEN, Johan Åhman, Johan SVANBERG, Lars Efraimsson, Stefan SÖDERSTRÖM
Принадлежит: Telefonaktiebolaget LM Ericsson AB

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.

Подробнее
Номер записи: 77
31-03-2016 дата публикации

COAXIAL CABLE

Номер: US20160093419A1
Автор: BAECK Jong-Seb, SHIN Sang-Sik, SHIN SEUNG-YONG
Принадлежит:

The present invention relates to a coaxial cable, and more particularly, to a coaxial cable that satisfies a required flame-retardant grade and electrical characteristics and that is inexpensive to manufacture, compared to the related art. 1. A coaxial cable comprising:an inner conductor formed of copper clad aluminum;an insulator configured to cover the inner conductor and formed of high-density polyethylene (HDPE);an outer conductor configured to cover an outer side of the insulator and formed of copper or aluminum; anda jacket configured to cover an outer side of the outer conductor and formed of flame-retardant polyvinyl chloride (PVC).2. The coaxial cable of claim 1 , wherein the inner conductor has a diameter of 3.0 mm to 5.0 mm.3. The coaxial cable of claim 1 , wherein the insulator has a crisscross structure in which the inner conductor is disposed to pass through a center of the insulator and a plurality of ribs extend in four directions.4. The coaxial cable of claim 1 , wherein a cross-sectional area of the insulator is in a range of 10 mmto 16 mm.5. The coaxial cable of claim 1 , wherein the outer conductor has a corrugate tubular structure claim 1 , and has a thickness of 0.21 mm to 0.25 mm.6. The coaxial cable of claim 1 , wherein a corrugate tubular structure of the outer conductor has a depth of 1.0 mm to 1.3 mm.7. The coaxial cable of claim 1 , wherein flame-retardant polyvinyl chloride (PVC) used to form the jacket has an oxygen index of 40 to 70.8. The coaxial cable of claim 1 , wherein the jacket has an external diameter that is in a range of 15 mm to 17 mm.9. The coaxial cable of claim 1 , wherein a loss in a 2-GHz signal per 100 meters is 13.2 dB or less.10. The coaxial cable of claim 1 , wherein the coaxial cable satisfies a PLENUM-grade flame-retardant rank in the NFPA 262 test claim 1 ,a loss in a 2-GHz signal per 100 meters is 13.2 dB or less, anda characteristic impedance of the coaxial cable is 52Ω.11. A coaxial cable which includes an ...

Подробнее
Номер записи: 78
05-05-2022 дата публикации

INSULATOR AND POWER CABLE COMPRISING SAME

Номер: US20220135782A1
Автор: CHO Young Eun, NAM Gi Joon, SHIN Jung In, SHIN Yeo Ool, SON Sue Jin
Принадлежит:

Provided is an insulator that is environmentally friendly and has high heat resistance and mechanical strength and excellent flexibility, bendability, impact resistance, cold resistance, installability, workability, etc., which are in a trade-off relationship with the physical properties; and a power cable having the insulator.

Подробнее
Номер записи: 79
05-05-2022 дата публикации

Assembly and method for sealing a bundle of wires

Номер: US20220139597A1
Автор: Kavitha Bharadwaj, Sunny Sethi, Ting Gao, Vijay Daga
Принадлежит: TE Connectivity Corp, TE Connectivity Solutions GMBH

A structure for creating a sealed wire bundle includes a first adhesive material in the form of a circular or semi-circular shape. The first adhesive material has a first outer wall with first spoke arms extending inward from the first outer wall. The first adhesive material has a first viscosity. First wire receiving spaces are provided between the first spoke arms. Wires are positioned in the first wire receiving spaces. As heat is applied to the adhesive structure, the adhesive structure flows to fill voids between the plurality of wires to thereby seal the wires.

Подробнее
Номер записи: 80
05-05-2022 дата публикации

Grommets for holding cables

Номер: US20220139598A1
Автор: Aviral Joshi, Christopher R. Stockman, Ronald A. Vaccaro
Принадлежит: CommScope Technologies LLC

The present disclosure describes a grommet formed of a polymeric material and adapted for securing a cable within a cable hanger. The grommet includes a main body having a generally cylindrical profile surrounding an interior cavity, the main body further having a length, a thickness, and a longitudinal axis; and two arms extending radially outwardly from the main body, one arm extending from a bottom edge of the main body and the other arm extending from a top edge of the main body, wherein each arm includes a flanged edge configured to engage the cable hanger when an excessive load force is applied to the cable. A grommet including two pairs of arms is also described herein.

Подробнее
Номер записи: 81
07-04-2016 дата публикации

VOLTAGE-STABILIZED POLYMERIC COMPOSITIONS

Номер: US20160096950A1
Автор: Bernius Mark T., Person Timothy J., Tomer Vivek, Welsh Dean M.
Принадлежит:

Disclosed are polymeric compositions with improved electrical breakdown strength. The polymeric compositions contain a poly-α-olefin and a voltage-stabilizing agent, which comprises an organic carboxylic ester comprising at least one aromatic ring and from 1 to 2 carboxylic alkyl ester substituents. Alternatively, the voltage-stabilizing agent can comprise trioctyl trimellitate. The present polymeric compositions exhibit improved electrical breakdown strength when applied as an insulating and/or shielding layer for power cables. 1. A polymeric composition , comprising:a poly-α-olefin polymer; andan organic carboxylic ester comprising at least one aromatic ring and from 1 to 2 carboxylic alkyl ester substituents.2. The polymeric composition of claim 1 , wherein said poly-α-olefin polymer is an ethylene-based polymer.3. The polymeric composition of claim 2 , wherein said ethylene-based polymer is a low-density polyethylene.4. The polymeric composition of claim 1 , wherein said poly-α-olefin polymer is crosslinked.5. The polymeric composition of claim 1 , wherein said organic carboxylic ester has a single aromatic ring.6. The polymeric composition of claim 5 , wherein said aromatic ring is a benzene ring.7. The polymeric composition of claim 1 , wherein the alkyl groups of said carboxylic alkyl ester substituents are selected from Cto Calkyl groups.8. The polymeric composition of claim 1 , wherein said organic carboxylic ester is selected from the group consisting of dioctyl phthalate claim 1 , dinonyl phthalate claim 1 , hexyl benzoate claim 1 , and combinations thereof; wherein said organic carboxylic ester is present in said polymeric composition in an amount ranging from 0.1 to 2 weight percent based on the combined weight of said poly-α-olefin polymer and said organic carboxylic ester.9. A coated conductor claim 1 , comprising:a conductor; anda dielectric insulating layer,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein said dielectric insulating layer ...

Подробнее
Номер записи: 82
01-04-2021 дата публикации

High Pressure Polyethylene Tubular Reactor Processes For Improved Wire Coating Product

Номер: US20210095060A1
Автор: Lammens Henri A., Zafian William J.
Принадлежит:

Methods for producing polyethylene compositions having broader melt index ratio and narrower molecular weight distribution in high pressure multi-feed tubular reactors are provided. The methods are useful in multi-feed tubular reactors comprising three or more reaction zones. The first reaction zone or the first and second reaction zone having a peak temperature that is lower than standard peak temperatures for polymerization of ethylene monomer in a tubular reactor. 1. A polymerization process comprising the step of:{'sub': 21', '2', 'w', 'n, 'claim-text': 'wherein the tubular reactor is a multizone tubular reactor having at least three reaction zones, the at least three reaction zones comprising a first reaction zone, a second reaction zone, and a third reaction zone, each reaction zone spaced lengthwise along the tubular reactor, wherein at least the first reaction zone has a peak temperature between about 10° C. to 50° C. lower than a peak temperature in the second reaction zone.', 'polymerizing ethylene and optionally one or more comonomers in a tubular reactor to produce a polyethylene composition having melt index ratio (I/I) within the range from 52 to 55 and molecular weight distribution (M/M) within the range from 5 to 6.5,'}2. The polymerization process of claim 1 , wherein the peak temperature in the first reaction zone is between about 240° C. to about 260° C.3. The polymerization process of claim 1 , wherein the peak temperature in the second reaction zone and the third reaction zone is between about 270° C. to 295° C.4. The polymerization process of claim 1 , wherein the polyethylene composition further has one or both of the following properties:{'sup': 3', '3, 'density between 0.920 g/cmand 0.927 g/cm; and'}{'sub': '2', 'melt index (I) between 2.0 and 4.0 g/10 min.'}5. A polymerization process comprising the step of:{'sub': 21', '2', 'w', 'n, 'claim-text': 'wherein the tubular reactor is a multizone tubular reactor having at least five reaction ...

Подробнее
Номер записи: 83
01-04-2021 дата публикации

CABLE JACKET COMPOSITION

Номер: US20210095108A1
Автор: Hjärtfors Anna, Liu Yi, SUMERIN Victor, Thorman Joseph
Принадлежит:

The present invention relates to a cable jacket composition comprising a multimodal olefin copolymer, said copolymer having density of 0.935-0.960 g/cmand MFRof 2.2-10.0 g/10 min and said composition having ESCR of at least 2000 hours and a cable shrinkage of 0.70% or lower. The invention further relates to the process for preparing said composition and its use as outer jacket layer for a cable, preferably a communication cable, most preferably a fiber optic cable. 1. A cable jacket composition comprising a multimodal olefin copolymer , wherein the multimodal olefin copolymer has density of 0.935-0.960 g/cmand MFRof 2.2-10.0 g/10 min , and the composition has ESCR of at least 2000 hours and cable shrinkage of 0.70% or lower.2. The composition of claim 1 , wherein the multimodal olefin copolymer has MFRof 2.5-8.0 g/10 min.3. The composition of claim 1 , wherein the multimodal olefin copolymer has Mw of 55000-95000 g/mol.4. The composition of claim 1 , wherein the composition has a cable extrusion pressure of 144 bar or lower.5. The composition according to claim 1 , wherein the composition has Eta 300 of 500 Pa·s or lower.6. The composition according to claim 1 , wherein the multimodal olefin copolymer is a bimodal polymer mixture of a low molecular weight ethylene homo- or copolymer and a high molecular weight copolymer of ethylene and a comonomer selected from the list consisting of 1-butene claim 1 , 4-methyl-1-pentene claim 1 , 1-hexene or 1-octene.7. The composition according to claim 6 , wherein the multimodal olefin copolymer mixture is a bimodal polymer mixture of a low molecular weight ethylene homopolymer and a high molecular weight copolymer of ethylene and 1-butene.8. The composition according to further comprising a conductive filler in an amount of 0.05 to 5 wt % claim 1 , preferably 0.05 to 3 wt % of the entire composition.9. The composition according to essentially consisting of the multimodal olefin copolymer.10. A cable comprising the composition of ...

Подробнее
Номер записи: 84
30-03-2017 дата публикации

ELECTRONICS HOUSING AND MANUFACTURING METHOD OF ELECTRONICS HOUSING

Номер: US20170094825A1
Автор: Lee James
Принадлежит:

An electronics housing includes a base body and a metal plating layer formed on a surface of the base body. The base body includes an upper cover, a lower cover and a metal ring. The upper cover and the lower cover are integrally fused by virtue of an ultra high frequency technology, and the metal ring is embedded between the upper cover and the lower cover. A nickel-deposited layer of the metal plating layer is electrolessly deposited on the surface of the base body. A copper layer of the metal plating layer is plated on the nickel-deposited layer. A nano-nickel layer of the metal plating layer is plated on the copper layer. A surface decoration layer of the metal plating layer is plated on the nano-nickel layer. The base body together with the metal plating layer defines at least one assembling hole. 1. An electronics housing , comprising:a base body including an upper cover, a lower cover and a metal ring, the upper cover and the lower cover being integrally fused by virtue of an ultra high frequency technology, and the metal ring being embedded between the upper cover and the lower cover; anda metal plating layer formed on a surface of the base body, the metal plating layer including a nickel-deposited layer formed on the surface of the base body, a copper layer formed on a surface of the nickel-deposited layer, a nano-nickel layer formed on a surface of the copper layer, and a surface decoration layer formed on a surface of the nano-nickel layer.2. The electronics housing as claimed in claim 1 , wherein the nickel-deposited layer is formed on the surface of the base body by an electroless deposition way for metalizing the base body.3. The electronics housing as claimed in claim 1 , wherein the copper layer is plated on the surface of the nickel-deposited layer.4. The electronics housing as claimed in claim 1 , wherein the nano-nickel layer is plated on the surface of the copper layer claim 1 , the nano-nickel layer is formed by nano-nickel particles claim 1 , ...

Подробнее
Номер записи: 85
01-04-2021 дата публикации

CABLE

Номер: US20210098157A1
Автор: CAI JIAN-GUO, CHANG LU-YU, Zheng Juan
Принадлежит:

A cable includes: a pair of core wires; an insulating layer covering the pair of core wires; a shielding layer covering the insulating layer; and an outer insulating layer covering the shielding layer; wherein the shielding layer is a double-layer metal foil. 1. A cable comprising:a pair of core wires;an insulating layer covering the pair of core wires;a shielding layer covering the insulating layer; andan outer insulating layer covering the shielding layer; whereinthe shielding layer is a double-layer metal foil.2. The cable as claimed in claim 1 , wherein the double-layer metal foil includes at least one of a double-layer aluminum foil and a double-layer copper foil.3. The cable as claimed in claim 1 , wherein the double-layer metal foil includes a PET layer and two metal layers are respectively calendered on each side of the PET layer.4. The cable as claimed in claim 1 , wherein each of the core wire includes an inner conductor and an inner insulating layer covering the inner conductor by extrusion molding.5. The cable as claimed in claim 4 , wherein the inner conductor is selected from the group including copper inner conductors claim 4 , silver-plated copper inner conductors claim 4 , and tin-plated copper inner conductors.6. The cable as claimed in claim 4 , wherein the inner insulating layer is selected from the group including PE claim 4 , PP claim 4 , FEP claim 4 , foamed PE claim 4 , foamed PP claim 4 , and foamed FEP.7. The cable as claimed in claim 1 , further including at least one ground wire arranged between the shielding layer and the outer insulating layer.8. The cable as claimed in claim 1 , wherein the insulating layer is selected from the group including PP claim 1 , PE claim 1 , PTFE claim 1 , and E-PTFE.9. The cable as claimed in claim 1 , wherein the insulating layer covers the pair of core wires in a spiral winding manner.10. The cable as claimed in claim 1 , wherein the shielding layer covers the insulating layer in a spiral winding manner ...

Подробнее
Номер записи: 86
01-04-2021 дата публикации

CABLE

Номер: US20210098158A1
Автор: CHANG LU-YU, Zheng Juan, ZHENG YANG-BO
Принадлежит:

A cable includes: a pair of core wires; an integrally extruded insulating layer covering the pair of core wires; a shielding layer covering the extruded insulating layer; and an outer insulating layer covering the shielding layer; wherein the pair of core wires are arranged longitudinally side by side and touch each other. 1. A cable comprising:a pair of core wires;an integrally extruded insulating layer covering the pair of core wires;a shielding layer covering the extruded insulating layer; andan outer insulating layer covering the shielding layer; whereinthe pair of core wires are arranged longitudinally side by side and touch each other.2. The cable as claimed in claim 1 , wherein each of the core wires includes an inner conductor and an extruded inner insulating layer covering the inner conductor.3. The cable as claimed in claim 2 , wherein the inner conductor is selected from the group including a copper inner conductor claim 2 , a silver-plated copper inner conductor claim 2 , and a tin-plated copper inner conductor.4. The cable as claimed in claim 2 , wherein the inner insulating layer is selected from the group including PP claim 2 , PE claim 2 , Teflon claim 2 , foamed PP claim 2 , foamed PE claim 2 , and foamed Teflon.5. The cable as claimed in claim 1 , further including at least one ground wire arranged between the metal shielding layer and the outer insulating layer.6. The cable as claimed in claim 4 , wherein the ground wire is located on the left and right side or the upper and lower side of the shielding layer.7. The cable as claimed in claim 1 , wherein the extruded insulating layer is selected from the group including PP claim 1 , PE claim 1 , Teflon claim 1 , foamed PP claim 1 , foamed PE claim 1 , and foamed Teflon.8. The cable as claimed in claim 1 , wherein there is no air gap between the extruded insulating layer and the pair of core wires.9. The cable as claimed in claim 1 , wherein the shielding layer is selected from the group including an ...

Подробнее
Номер записи: 87
06-04-2017 дата публикации

System for Isolating Power Conductors Using Folded Insulated Sheets

Номер: US20170098489A1
Автор: Meyer Dean T., Pumala Cody J., Serdynski David P.
Принадлежит:

An improved electrical system may be provided by electrically isolating complex bus geometries by using one or more substantially flat and electrically insulating sheets. The sheet may have one or more fold lines which allow the sheet to fold in multiple directions and ways over varying configurations of power conductors. The sheet may fit within the constraints of preconfigured electrical system components without the need for redesigning such components. The sheet may have a dielectric strength per mil effective to isolate power conductors based on maximum charge and proximity of the power conductors. 1. A system for isolating power conductors comprising:a bus support;first and second power conductors disposed proximal to one another along the bus support, the first and second power conductors providing electrical power phases differing from one another; anda substantially flat, electrically insulating sheet having at least one fold line, the at least one fold line allowing the sheet to fold over at least one of the first and second power conductors in at least two directions,wherein the electrically insulating sheet electrically isolates a portion of the first power conductor from the second power conductor.2. The system of claim 1 , wherein the electrically insulating sheet is a polypropylene sheet.3. The system of claim 1 , wherein the electrically insulating sheet is folded completely around the at least one of the first and second power conductors.4. The system of claim 3 , wherein the electrically insulating sheet includes an open area allowing the at least one of the first and second power conductors to enter the electrically insulating sheet claim 3 , and the electrically insulating sheet further includes a folded area opposing the open area.5. The system of claim 3 , wherein the electrically insulating sheet includes first and second open areas on opposing sides allowing the at least one of the first and second power conductors to pass through the ...

Подробнее
Номер записи: 88
28-03-2019 дата публикации

NON-HALOGEN FLAME-RETARDANT INSULATED ELECTRIC WIRE AND NON-HALOGEN FLAME-RETARDANT CABLE

Номер: US20190096544A1
Автор: Hashimoto Mitsuru, Iwasaki Makoto, Kikuchi Ryutaro, Oriuchi Takuya
Принадлежит:

A non-halogen flame-retardant insulated electric wire includes a conductor and a crosslinked single-layer or a multilayer insulating layer on an outer periphery of the conductor. The insulating layer has a tensile elastic modulus of 500 MPa or more and an elongation at break of 120% or less in a tensile test performed at a displacement rate of 200 mm/min, and has a storage elastic modulus at 125° C. of 3×10Pa or more in a dynamic viscoelasticity test. 1. A non-halogen flame-retardant insulated electric wire , comprising:a conductor; anda crosslinked single-layer or a multilayer insulating layer disposed on an outer periphery of the conductor,{'sup': '6', 'wherein the insulating layer has a tensile elastic modulus of 500 MPa or more and an elongation at break of 120% or less in a tensile test performed at a displacement rate of 200 mm/min, and has a storage elastic modulus at 125° C. of 3×10Pa or more in a dynamic viscoelasticity test.'}2. The non-halogen flame-retardant insulated electric wire according to claim 1 , wherein the insulating layer comprises an outermost layer formed of a coating material that contains at least one of magnesium hydroxide and aluminum hydroxide claim 1 , and has a specific gravity of 1.4 or more.3. The non-halogen flame-retardant insulated electric wire according to claim 1 , wherein the insulating layer comprises an outermost layer formed of a coating material that includes a melting point peak of 120° C. or higher in differential scanning calorimetry.4. The non-halogen flame-retardant insulated electric wire according to claim 2 , wherein the coating material contains claim 2 , as a base polymer claim 2 , a polyolefin having a melting point of 120° C. or higher.5. The non-halogen flame-retardant insulated electric wire according to claim 4 , wherein the coating material further contains claim 4 , as the base polymer claim 4 , a polyolefin having a melting point lower than 120° C.6. A non-halogen flame-retardant cable claim 4 , ...

Подробнее
Номер записи: 89
26-03-2020 дата публикации

HALOGEN-FREE RESIN COMPOSITION AND INSULATION WIRE

Номер: US20200095406A1
Автор: Aoyama Takashi, Ashihara Shingo, Yasaki Hirotaka
Принадлежит:

A halogen-free resin composition is disclosed comprising a base polymer. In the halogen-free resin composition, the content of a compound including magnesium is equal to or less than 30 parts by mass relative to 100 parts by mass of the base polymer; and the content of a compound including calcium is equal to or less than 30 parts by mass relative to 100 parts by mass of the base polymer. The halogen-free resin composition has an oxygen index of 20 or more. Preferably, the halogen-free resin composition further includes a heavy metal deactivator. Preferably, the base polymer includes a polymer that has a melting point of 120° C. 1. A halogen-free resin composition , comprising:a base polymer,wherein the content of a compound including magnesium is equal to or less than 30 parts by mass relative to 100 parts by mass of the base polymer,wherein the content of a compound including calcium is equal to or less than 30 parts by mass relative to 100 parts by mass of the base polymer, andwherein the halogen-free resin composition has an oxygen index of 20 or more.2. The halogen-free resin composition according to claim 1 ,wherein the halogen-free resin composition further includes a heavy metal deactivator.3. The halogen-free resin composition according to claim 1 ,wherein the base polymer includes a polymer that has a melting point greater than 120° C.4. The halogen-free resin composition according to claim 1 ,wherein the hue of the halogen-free resin composition is black, yellow, or green.5. The halogen-free resin composition according to claim 1 ,wherein the content of the compound including calcium is equal to or more than 5 parts by mass relative to 100 parts by mass of the base polymer.6. The halogen-free resin composition according to claim 1 ,wherein the content of the compound including magnesium is equal to or more than 5 parts by mass relative to 100 parts by mass of the base polymer.7. The halogen-free resin composition according to claim 1 ,wherein the halogen- ...

Подробнее
Номер записи: 90
26-03-2020 дата публикации

POLYOLEFIN BLEND WITH UNIQUE MICROPHASE STRUCTURE

Номер: US20200095411A1
Автор: HAN Joon
Принадлежит:

A crosslinkable low density polyethylene blend composition, cured product made therefrom, methods of making and using same, and articles containing same. 1. A polyolefin blend characterized according to Structure Test Method by a co-continuous pathways , microphase-separated network structure , which consists of a first phase of (A) a poly(alpha-olefin) (homo or co)polymer and a second phase of (B) a molecular catalyst-derived poly(ethylene-co-(alpha-olefin)) copolymer.2. The polyolefin blend of claim 1 , wherein:{'sub': 3', '20, 'the (A) poly(alpha-olefin) (homo or co)polymer consists of from 95 to 100.0 weight percent alpha-olefin monomeric units, from 0 to 1 weight percent (wt %) ethylene comonomeric units, and from 0 to 5 wt % of trialkoxysilylalkyl groups, all based on total weight of (A); wherein each alpha-olefin monomeric unit is independently derived from the same or different (C-C)alpha-olefin; and'}the (B) molecular catalyst-derived ethylene/alpha-olefin copolymer consists of from 1 to 50 wt % ethylene monomeric units, from 99 to 50 wt % alpha-olefin comonomeric units, and from 0 to 5 wt % of trialkoxysilylalkyl groups, all based on total weight of (B).3. The polyolefin blend of claim 1 , characterized by any one of limitations (i) to (v):(i) the amount of the (A) poly(alpha-olefin) (homo or co)polymer in the polyolefin blend is from 5 to 95 weight percent (wt %) and the amount of the (B) molecular catalyst-derived ethylene/alpha-olefin copolymer in the polyolefin blend is from 95 to 5 wt %, all based on total weight of the polyolefin blend; or{'sup': 1', '2', '1', '2, '(ii) the amount of the (A) poly(alpha-olefin) (homo or co)polymer in the polyolefin blend is characterized by a first volume fraction, V, and the amount of the (B) molecular catalyst-derived ethylene/alpha-olefin copolymer in the polyolefin blend is characterized by a second volume fraction, V, wherein Vis from 0.05 to 0.95 and Vis from 0.95 to 0.05, all based on total volume fraction of ...

Подробнее
Номер записи: 91
12-04-2018 дата публикации

Crosslinked composition comprising ethylene vinyl acetate copolymer and nitrile rubber

Номер: US20180100059A1
Автор: AHN Dae-Up, LIM Jong-Chan
Принадлежит:

A crosslinked composition for use as a sheath layer of cable is obtained from polymer blend having ethylene vinyl acetate copolymer (EVA), nitrile rubber (NBR) and crosslinking agent. The polymer blend further has a reactive polymer containing at least one nucleophilic or electrophilic functional group and a reactive compound selected from amphiphilic compound containing at least one nucleophilic or electrophilic functional group that can chemically react with nucleophilic or electrophilic functional group of the reactive polymer. 1. A crosslinked composition ,wherein said crosslinked composition is obtained from a polymer blend having ethylene vinyl acetate copolymer (EVA), nitrile rubber (NBR) and crosslinking agent, a reactive polymer containing at least one nucleophilic or electrophilic functional group; and', 'a reactive compound selected from amphiphilic compound containing at least one nucleophilic or electrophilic functional group that can chemically react with the nucleophilic or electrophilic functional group of reactive polymer., 'wherein said polymer blend further includes2. The composition according to claim 1 , wherein when the reactive polymer contains a nucleophilic functional group claim 1 , the reactive compound contains an electrophilic functional group claim 1 , or when the reactive polymer contains an electrophilic functional group claim 1 , the reactive compound contains a nucleophilic functional group.3. The composition according to claim 1 , wherein the ethylene vinyl acetate copolymer has 50% by weight or less of vinyl acetate content.4. The composition according to claim 1 , wherein the difference of Hildebrand solubility parameter between EVA and NBR is more than 0.5 (cal/cm).5. The composition according to claim 1 , wherein the reactive polymer and the reactive compound has between 8.0 and 10.5 (cal/cm)of Hildebrand solubility parameter claim 1 , separately.6. The composition according to claim 1 , wherein the electrophilic functional ...

Подробнее
Номер записи: 92
03-07-2014 дата публикации

Thiobis Phenolic Antioxidant/Polyethylene Glycol Blends

Номер: US20140182882A1
Автор: Adamczyk Antoni, Cogen Jeffrey M., Drunchus Neil W., Emley Daniel, Song Susan
Принадлежит:

Thiobis phenolic antioxidants are efficiently dry or melt blended with a tree-resistant, crosslinkable polyethylene by first forming a blend, preferably a dry blend, of the antioxidant with a polyalkylene glycol (PAG), and then mixing the blend with the polyethylene. The incorporation of thiobis phenolic antioxidant and PAG blend into polyethylene provides the PE with high oxidative induction time (OIT) which is a measure of the oxidative stability of the PE. 1. An additive mixture comprising at least one thiobis phenolic antioxidant and at least one polyalkylene glycol (PAG) of a weight average molecular weight of at least 1 ,000.2. The mixture of in which the thiobis phenolic antioxidant and PAG are present at a thiobis phenolic antioxidant to PAG weight ratio from 0.02:1 to 3:1.3. The mixture of in which the PAG has a weight average molecular weight of at least 10 claim 2 ,000 and the thiobis phenolic antioxidant is at least one of 2 claim 2 ,2′-thiobis(6-t-butyl-4-methylphenol); 4 claim 2 ,4′-thiobis(2-methyl-6-t-butylphenol); 2 claim 2 ,2′-thiobis 4-octylphenol; 2 claim 2 ,2′-thiobis(6-t-butyl-p-cresol) claim 2 , and 4 claim 2 ,4′-thiobis-(2-tert-butyl-5-methyl-phenol) (TBM6).4. The mixture of prepared as a dry blend and in which the PAG is polyethylene glycol.5. A process of preparing the mixture of claim 3 , the process comprising the step of melt blending the PAG with the thiobis phenolic antioxidant.6. A process of preparing the mixture of claim 3 , the process comprising the step of dissolving the PAG and thiobis phenolic antioxidant in a common solvent.7. The process of in which the solvent is a halogenated hydrocarbon claim 6 , and the process comprises the further step of removing the solvent by evaporation.8. A process of preparing the mixture of claim 3 , the process comprising the step of dry blending the PAG and the thiobis phenolic antioxidant.9. The process of comprising the further step of compacting the dry blend into a compacted article.10. A ...

Подробнее
Номер записи: 93
13-04-2017 дата публикации

MOLDED WIRE AND MOLDED CABLE, AND WIRE FOR MOLDED WIRE AND CABLE FOR MOLDED CABLE

Номер: US20170103828A1
Автор: NAKAYAMA Akinari, SUGITA Keisuke
Принадлежит:

A molded cable comprises a conductor, an insulation inner layer, an insulation outer layer, and a resin molded body. The insulation inner layer comprises a crosslinked ethylene resin composition and is provided an outer circumference of the conductor. The insulation outer layer comprises a crosslinked thermoplastic polyurethane composition and is provided on an outer circumference of the insulation inner layer. Arithmetic average roughness (Ra) of a surface of the insulation outer layer is 5 μm to 100 μm. The resin molded body coats an exposed end portion of the conductor and an end portion of the insulation outer layer at a side of the exposed end portion of the conductor. The resin molded body is fused to the insulation outer layer. 1. A molded wire comprising:a conductor;an insulation inner layer that comprises a crosslinked ethylene resin composition and that is provided on an outer circumference of the conductor;an insulation outer layer that comprises a crosslinked thermoplastic polyurethane composition and that is provided on an outer circumference of the insulation inner layer, arithmetic average roughness (Ra) of a surface of the insulation outer layer being 5 μm to 100 μm; anda resin molded body that coats an exposed end portion of the conductor and an end portion of the insulation outer layer at a side of the exposed end portion of the conductor and that is fused to the insulation outer layer,wherein gel fraction of the crosslinked ethylene resin composition is 45% or more, and gel fraction of the crosslinked thermoplastic polyurethane composition is 71% or less.2. The molded wire according to claim 1 , wherein the gel fraction of the crosslinked ethylene resin composition is 50% or more claim 1 , and the gel fraction of the crosslinked thermoplastic polyurethane composition is 70% or less.3. The molded wire according to claim 1 , wherein the resin molded body comprises polyamide resin or polybutylene terephthalate resin.4. A molded cable comprising:a ...

Подробнее
Номер записи: 94
04-04-2019 дата публикации

LEAD ALLOY BARRIER TAPE SPLICE FOR DOWNHOLE POWER CABLE

Номер: US20190103204A1
Автор: Von Fange Christopher
Принадлежит:

A technique facilitates splicing of a power cable including splicing of a protective lead barrier. According to the technique, the power cable comprises conductors which form individual phases of a multi-phase conductor assembly. The conductors may be individually spliced for each phase of the multi-phase conductor assembly. Subsequently, splicing of the protective lead barrier may be performed by utilizing a lead based tape which is wrapped, e.g. helically wrapped, around the conductors. The wrapping technique provides a gas seal with respect to each individual insulated conductor within the multi-phase conductor assembly. Depending on the specifics of a given application and environment, additional layers may be added to ensure formation of a desirable splice. 1. A method of splicing , comprising:joining corresponding ends of copper conductors located in a power cable;applying a high strain dielectric tape over the joined corresponding ends;wrapping a lead alloy tape along each copper conductor between ends of a lead barrier layer;compressing the lead alloy tape to ensure bonding of an adhesive;enclosing the conductors, wrapped in the lead alloy tape, with a high modulus tape; andproviding an external armor over the high modulus tape.2. The method as recited in claim 1 , wherein joining corresponding ends comprises joining corresponding ends of three copper conductors in a multi-phase conductor assembly.3. The method as recited in claim 1 , wherein joining comprises deburring and polishing the corresponding ends.4. The method as recited in claim 1 , further comprising applying a high modulus dielectric tape cylinder over the high strain dielectric tape.5. The method as recited in claim 1 , wherein wrapping comprises helically wrapping.6. The method as recited in claim 1 , wherein wrapping comprises helically wrapping back and forth in a plurality of layers to create a cross pattern.7. The method as recited in claim 1 , further comprising using a tape to prevent ...

Подробнее
Номер записи: 95
19-04-2018 дата публикации

Polymer Composition for W&C Application with Advantageous Electrical Properties

Номер: US20180108450A1
Автор: Englund Villgot, ERIKSSON Virginie, Hagstrand Per-Ola, JOHANSSON Solveig
Принадлежит:

The invention relates to power cable polymer composition which comprises a single site polyethylene (SSPE), a power cable, for example, a high voltage direct current (HV DC), a power cable polymer insulation, use of a polymer composition for producing a layer of a power cable, and a process for producing a power cable. 1. A power cable polymer composition characterized by that it comprises a single site polyethylene (SSPE) wherein the power cable polymer composition has a DC electrical conductivity of 5.0 fs/m or less when measured according to the DC conductivity method as described under “Deteimination Methods”.2. A power cable polymer composition according to claim 1 , wherein the power cable polymer composition is a power cable insulation polymer composition.3. A power cable polymer composition according to claim 1 , wherein the power cable polymer composition is a thermoplastic power cable polymer composition.4. A power cable polymer composition according to claim 1 , wherein the power cable polymer composition is a high voltage (HV) and/or extra-high voltage (EHV) power cable polymer composition.5. A power cable polymer composition according to claim 1 , wherein the power cable polymer composition is a high voltage direct current (HV DC) and/or an extra high voltage direct current (EHV DC) power cable polymer composition.6. A power cable polymer composition according to claim 1 , wherein the power cable polymer composition has a DC electrical conductivity of 0.05 to 5.0 fS/m claim 1 , e.g. claim 1 , 0.05 to 4.0 fS/m claim 1 , for example claim 1 , 0.01 to 3.0 fS/m claim 1 , or claim 1 , e.g. claim 1 , 0.01 to 2.0 fS/m claim 1 , when measured according to the DC conductivity method as described under “Determination Methods”.7. A power cable polymer composition according to claim 1 , wherein the power cable polymer composition has a DC electrical conductivity of 4.0 fS/m or less claim 1 , e.g. claim 1 , 3.0 fS/m or less claim 1 , for example claim 1 , 2.0 fS/m ...

Подробнее
Номер записи: 96
11-04-2019 дата публикации

HIGH PRESSURE RADIAL POLYMERISATION PROCESS FOR A COPOLYMER OF ETHYLENE SILANE GROUPS CONTAINING COMONOMER

Номер: US20190106518A1
Автор: Carlsson Roger, Hjertberg Thomas, lindborm Lena, Lindgren Lars
Принадлежит:

A copolymer of ethylene with silane groups containing comonomer that is produced in a high pressure radical polymerisation process comprising the steps of: (a) compressing ethylene together with the silane groups containing comonomer under pressure in a compressor, wherein a compressor lubricant is used for lubrication, (b) polymerising ethylene together with the silane groups containing comonomer in a polymerisation zone, (c) separating the obtained ethylene from the unreacted products and recovering the separated ethylene copolymer in a recovery zone, wherein in step a) the compressor lubricant comprises a mineral oil and ethylene copolymer has a silane groups containing comonomer content of 0.5 to 3 wt % and an MFR2 of 0.3 to 10 g/10 min. The copolymer of ethylene with silane groups containing comonomer can be used. 1. A copolymer of ethylene with silane groups containing comonomer that is produced in a high pressure radical polymerisation process comprising the steps of:(a) compressing ethylene together with the silane groups containing comonomer under pressure in a compressor, wherein a compressor lubricant is used for lubrication,(b) polymerising ethylene together with the silane groups containing comonomer in a polymerisation zone,(c) separating the obtained ethylene from the unreacted products and recovering the separated ethylene copolymer in a recovery zone,{'sub': '2', 'wherein in step a) the compressor lubricant comprises a mineral oil and the ethylene copolymer has a silane groups containing comonomer content of 0.5 to 3 wt % and an MFRof 0.3 to 10 g/10 min, and'} {'br': None, 'sub': '2', '(MFR[g/10 min]<1.8*silane groups containing comonomer[wt %]−0.6.'}, 'the copolymer of ethylene with silane groups containing comonomer satisfies the following relationship2. The copolymer of ethylene with silane groups containing comonomer according to claim 1 , wherein the MFRis from 0.5 to 2 g/10 min.3. The copolymer of ethylene with silane groups containing ...

Подробнее
Номер записи: 97
11-04-2019 дата публикации

COAXIAL CABLE

Номер: US20190108930A1
Автор: AOYAGI Yoshihiko, KAWAKAMI Yoshinori, Urashita Kiyotaka
Принадлежит:

Provided is a coaxial cable configured so that adhesion between an insulating layer and a shield layer can be improved without addition of an adhesive component and roughening of an adhesive surface. The coaxial cable includes a center conductor, the insulating layer covering the outer periphery of the center conductor, the shield layer covering the outer periphery of the insulating layer, and a sheath covering the outer periphery of the shield layer. An anchor layer containing resin whose glass-transition point is equal to or lower than 15° C. is provided between the insulating layer and the shield layer. 1. A coaxial cable comprising:a center conductor;an insulating layer covering an outer periphery of the center conductor;a shield layer covering an outer periphery of the insulating layer; anda sheath covering an outer periphery of the shield layer,wherein an anchor layer containing resin whose glass-transition point is equal to or lower than 15° C. is provided between the insulating layer and the shield layer.2. The coaxial cable according to claim 1 , whereinthe anchor layer contains olefin-based resin.3. The coaxial cable according to claim 1 , whereina thickness of the anchor layer is 0.5 μm to 10 μm.4. The coaxial cable according to claim 2 , whereina thickness of the anchor layer is 0.5 μm to 10 μm. The present invention relates to a coaxial cable.Conventionally, a coaxial cable configured such that an insulating layer and a shield layer are provided at the outer periphery of a center conductor has been broadly used for electronic equipment such as a mobile phone and medical equipment. Generally, the shield layer is formed from a braid or a tape wrapping. However, there is a problem that productivity is low due to an extremely-low linear velocity at the step of forming these components.In recent years, further diameter reduction in a coaxial cable has been demanded with an increasing demand for size reduction and weight reduction in electronic equipment and ...

Подробнее
Номер записи: 98
26-04-2018 дата публикации

ELECTRIC WIRE COATING MATERIAL COMPOSITION, INSULATED ELECTRIC WIRE, AND WIRE HARNESS

Номер: US20180112096A1
Автор: MURAO Satoshi, SATOU Masashi, SHIMADA Tatsuya
Принадлежит:

A flame-retardant electric wire coating material composition that can improve heat resistance without using electron beam cross-linking, has no risk of reducing the mechanical characteristics and chemical resistance due to no metal hydroxides being added thereto as flame retardants, and can suppress the formation of die lip build-up and the like during manufacturing to achieve favorable productivity, and an insulated electric wire and a wire harness. The electric wire coating material composition may include: 1. An electric wire coating material composition comprising:{'sup': '3', 'a silane-grafted polyolefin (A) obtained by grafting a silane coupling agent to a polyolefin having a density of 0.855 to 0.920 g/cm;'}{'sup': '3', 'an unmodified polyolefin (B) having a density of 0.885 to 0.956 g/cm;'}a modified polyolefin (C) modified with one or more functional groups selected from a carboxylic acid group, an acid anhydride group, an amino group, an acrylic group, a methacrylic group, and an epoxy group;a bromine-based flame retardant and antimony trioxide (D);a cross-linking catalyst batch (E) obtained by dispersing a cross-linking catalyst in a binder resin;zinc oxide and an imidazole-based compound modified with a mercapto group, or zinc sulfide (F);an antioxidant, a metal deactivator, and a lubricant (G);silicone oil (H); and wherein the polyolefin used in the silane-grafted polyolefin (A) prior to silane-grafting has a degree of crystallization of 10 to 25%, a melt flow rate of 0.5 to 5 g/10 minutes at 190° C. under a load of 2.16 kg, a Shore A hardness of 55 to 80, and a flexural modulus of 3 to 350 MPa, and the silane-grafted polyolefin has a gel fraction of 70 to 95%,', 'the unmodified polyolefin (B) has a melt flow rate of 0.5 to 5 g/10 minutes at 190° C. under a load of 2.16 kg, and a flexural modulus of 10 to 1000 MPa,', 'the bromine-based flame retardant (D) has a melting point of 200° C. or higher, or alternatively is ethylenebistetrabromophthalimide or ...

Подробнее
Номер записи: 99
09-06-2022 дата публикации

MOISTURE CUREABLE POLYMER FOR FLEXIBLE CABLES

Номер: US20220177680A1
Автор: Fossum Kjell, Hellstrom Stefan, SULTAN Bernt-Ake
Принадлежит:

The invention relates to the use of a polyethylene composition comprising one or more ethylene copolymer(s) wherein the ethylene copolymer is a terpolymer containing monomer units with polar groups and monomer units with hydrolysable silane groups, wherein the monomer units with polar groups are present in an amount of more than 5 mol. % based on the total polyethylene composition, and a silanol condensation catalyst in an amount of 0.0001 to 5 wt. %, based on the total polyethylene composition for improving the adhesion between a layer of a cable comprising the polyethylene composition and a polyurethane resin. 1. A method , comprising:adhering a layer of a cable comprising a polyethylene composition to a polyurethane resin;wherein the polyethylene composition comprises:a) one or more ethylene copolymer(s) wherein the ethylene copolymer is a terpolymer containing monomer units with polar groups and monomer units with hydrolysable silane groups, wherein the monomer units with polar groups are present in an amount of more than 5 mol. % based on the total polyethylene composition, andb) a silanol condensation catalyst in an amount of 0.0001 to 5 wt. %, based on the total polyethylene composition.2. The method of claim 1 , wherein the monomer units with polar groups are butyl acrylate claim 1 , ethyl acrylate claim 1 , methyl acrylate and/or methyl methacrylate.3. The method of claim 1 , wherein the monomer units with polar groups are present in an amount of not more than 25 mol. % based on the total polyethylene composition.4. The method of claim 1 , wherein the monomer units with hydrolysable silane groups comprise vinyl trimethoxy silane claim 1 , vinyl bismethoxyethoxy silane claim 1 , vinyl triethoxy silane claim 1 , gamma-(meth)acryl-oxypropyltrimethoxy silane claim 1 , gamma(meth)acryloxypropyltriethoxy silane claim 1 , vinyl triacetoxy silane and mixtures thereof.5. The method of claim 1 , wherein the monomer units with hydrolysable groups are present in an ...

Подробнее
Номер записи: 100