CN203689969U - Temperature-resistant and fire-resistant cable comprising carbon fiber composite tape - Google Patents
Temperature-resistant and fire-resistant cable comprising carbon fiber composite tape Download PDFInfo
- Publication number
- CN203689969U CN203689969U CN201320817901.0U CN201320817901U CN203689969U CN 203689969 U CN203689969 U CN 203689969U CN 201320817901 U CN201320817901 U CN 201320817901U CN 203689969 U CN203689969 U CN 203689969U
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- China
- Prior art keywords
- carbon fiber
- fire
- cable
- composite band
- oversheath
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 39
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 39
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 20
- 239000010445 mica Substances 0.000 claims abstract description 24
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 24
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 239000011810 insulating material Substances 0.000 claims abstract description 11
- 239000012774 insulation material Substances 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 229920000573 polyethylene Polymers 0.000 claims description 11
- 239000004800 polyvinyl chloride Substances 0.000 claims description 10
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical group [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920001617 Vinyon Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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Abstract
The utility model discloses a temperature-resistant and fire-resistant cable comprising a carbon fiber composite tape, which comprises at least one cable core. A layer of mica tape is wrapped outside the cable core and serves as a first fire-resistant wrapping layer. The cable is characterized in that at least one second fire-resistant wrapping layer is wrapped outside the first fire-resistant wrapping layer by means of the carbon fiber composite tape. An insulating material layer is extruded outside the second fire-resistant wrapping layer. According to the cable structure of the utility model, the carbon fiber is highly fire-resistant and can bear a high temperature up to 2000-3000 DEG C, so that the integrity of both the conductor of the cable core and the mica tape can be well protected. Therefore, the operation of the fire-resistant cable is ensured to be more stable even in severe flame conditions.
Description
Technical field
The utility model relates to cable technology field, particularly a kind of carbon fiber-containing composite band and the high fire-resisting cable of temperature resistant grade.
Background technology
The purposes of electric wire product has two kinds, and one is transmission current, and one is signal transmission.The technical performance index of the main control of cable of transmission current class is conductor resistance, withstand voltage properties; The technical performance index of the cable major control of signal transmission class is transmission performance-characteristic impedance, decay and cross-talk etc.
Cable can divide six large classes on the whole: (1) bare wire class; (2) electromagnetic wire (enamelled wire); (3) power cable; (4) electric cable for electric equipment; (5) communication wire cable; (6) optical cable.
The general the most basic structure of cable has conductor, insulating barrier and outer jacket, increases as requested some structures, as screen, sheath or armour etc., for cable has rounding property more additional packing materials more again.
Conductor is the carrier of transmission current or signal, and other structures are all to do protection.The performance of protection has three kinds generally according to the demand of cable product, one be the protection each unit of cable itself not mutually or reduce impact, as withstand voltage, heat-resisting, the loss of anti-electromagnetic field generation, the anti-signal phase of telecommunication cable mutual interference etc.Another kind of protection is that the electric current in protection conductor does not exert an influence to outside, as prevented, electric current from leaking, and anti electromagnetic wave leaks etc.Last a kind of protection external world does not exert an influence to cable inside, as resistance to compression, tension, heat-resisting, weather-proof, resistance to combustion, waterproof, anti-electromagnetic wave interference etc.
The effect of conductor or title conductor wire core is conduction current.There are real core and stranded dividing.Material has copper, aluminium silver, copper covered steel, aluminium Baogang etc., and mainly use is copper and aluminium.The electric conductivity of copper will be good than aluminium many.The resistivity national standard of copper conductor requires to be not less than 0.017241 Ω .mm
2/ m(20 ℃ time), the resistivity of aluminium conductor requires to be not less than 0.028264 Ω .mm
2/ m(20 ℃ time).
Insulating barrier is wrapped in outside conductor, and its effect is isolated conductor, prevents current leakage.Insulating material has varied, as polyvinyl chloride (PVC), polyethylene (PE), crosslinked polyethylene (XLPE), (rubber kind is a lot of for rubber, have nitrile rubber, neoprene, butadiene-styrene rubber, ethylene-propylene rubber etc.), fluoroplastics, nylon, insulating paper etc., the topmost performance of these materials is exactly that insulation property will be got well, other performance requirement according to cable instructions for use have nothing in common with each other, what have requires dielectric coefficient little, to reduce loss; Some requirements have fire resistance or can be high temperature resistant; The cable that requires having can or not produce thick smoke less or pernicious gas in the time of burning; Some requirement energy oil resistants, corrosion-resistant, the requirement softness having etc.
Flame retardant coating, only has fire-resisting cable to have this structure, and its effect is that cable can stand certain hour in fire, the time of more electricity consumptions while escape to people.The material using is now mainly mica tape.In fire, cable can burn very soon, high temperature resistant because of the mica sheet of mica tape, and has again insulating effect, can protect conductor operation certain hour in fire.
The parts that outer jacket shields at cable outermost layer.Mainly contain three kinds: Plastic, rubber class and metal species.What wherein Plastic was the most frequently used is igelite, vinyon, and also with good grounds cable properties has flame retardant type, low-smoke low-halogen type, low smoke halogen-free etc.
As everyone knows, have advantages of and do not burn and resistance to 600 ℃～1300 ℃ as the mica tape of flame retardant coating, but the shortcoming such as there is also mica tape easily scratches, and easily causes conductor to expose, and mica tape heatproof effect is not ideal.
Carbon fiber has the intrinsic intrinsic property of material with carbon element, has again the soft machinability of textile fabric concurrently, is fortifying fibre of new generation.Compared with traditional glass fibre (GF), Young's modulus is that they are more than 3 times; It is compared with kevlar fiber (KF-49), and not only Young's modulus is its 2 times of left and right, and insoluble not swollen in organic solvent, acid, alkali, and corrosion resistance is transcendent.Can resistance to 2000 ℃～3000 ℃ high temperature.
Utility model content
Technical problem to be solved in the utility model is to provide for the existing problem of prior art the cable of the wrapped flame retardant coating of a kind of carbon fiber-containing composite band.This cable adopts the compound mica tape bringing in wrapped current cable of carbon fiber, has further improved the fire resistance of cable.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of carbon fiber-containing composite band and the high fire-resisting cable of temperature resistant grade, comprise at least one cable core, outside cable core, wrapped one deck mica tape is as the first fire-resistant lapping layer, it is characterized in that, adopt carbon fiber composite band to be surrounded with at least fire-resistant lapping layer of one deck second outward at described the first fire-resistant lapping layer, be extruded with one deck insulation material layer outward at the second fire-resistant lapping layer.
In a preferred embodiment of the present utility model, the wrapped mode of described carbon fiber composite band repeats wrapped 2 layers to be not less than 50% Duplication.
In a preferred embodiment of the present utility model, described cable core is single conductor or the intertwist body being made up of many conductors or is optical cable.
In a preferred embodiment of the present utility model, also comprise an oversheath and be filled in oversheath and insulation material layer between filler.
In a preferred embodiment of the present utility model, described mica tape is synthetic mica tape or gold mica tape.
In a preferred embodiment of the present utility model, described filler is that polypropylene is filled rope or polyvinyl chloride gasket for packing.
In a preferred embodiment of the present utility model, described oversheath is the one in outer protective polyethylene cover, flame-proof polyethylene oversheath, polyvinyl chloride oversheath, flame-proof polyvinyl chloride oversheath, Halogen material oversheath, TPU oversheath, TPE oversheath, nylon outer sheath.
In a preferred embodiment of the present utility model, described carbon fiber composite band is that the Compound Fabric that adopts fibrous carbon fiber to make is made.
In a preferred embodiment of the present utility model, described insulation material layer is organic insulating material layer or inorganic insulating material layer.
In a preferred embodiment of the present utility model, described organic insulating material layer is polyethylene insulation material layer or silicon rubber insulation material layer.
Owing to having adopted technical scheme as above; the construction of cable of the present utility model is mainly the high fire resistance that utilizes carbon fiber self; its the 2000 ℃～fire resistance of 3000 ℃ can be protected the integrality of cable core conductor and mica tape, the more stable operation under severe flame condition of protection fire-resisting cable.
The utlity model has following advantage:
1, protect mica tape integrality, avoided mica tape to scratch scratch, avoided conductor to expose.
2, temperature resistant grade improves: the heatproof of mica is up to 1300 ℃, and the heatproof of carbon fiber is more than 2000 ℃.
3, improve cable useful life: carbon fiber does not at high temperature melt, in various solvents, do not dissolve, corrosion-resistant, the coefficient of expansion is little, use the high compound mica tape bringing in wrapped current cable of carbon fiber that adopts of birthday noodle, further improved the fire resistance of cable;
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of the utility model embodiment.
Embodiment
Further describe the utility model below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the carbon fiber-containing composite band that Fig. 1 provides and the high fire-resisting cable of temperature resistant grade, comprise three cable cores 10, and every cable core 10 can be the intertwist body that forms of single copper, aluminium conductor or many copper, aluminium conductors or be optical cable.
At the outer wrapped one deck mica tape of each cable core 10, as the fire-resistant lapping layer 11 of ground floor, mica tape is synthetic mica tape or gold mica tape.
Be surrounded with the fire-resistant lapping layer 12 of the second layer in the outer employing carbon fiber of the fire-resistant lapping layer 11 of ground floor composite band, the wrapped mode of carbon fiber composite band repeats wrapped 2 layers to be not less than 50% Duplication.Carbon fiber composite band is that the Compound Fabric that adopts fibrous carbon fiber to make is made.
Outside the fire-resistant lapping layer 12 of the second layer, be extruded with one deck insulation material layer 13.Insulation material layer is organic insulating material layer or inorganic insulating material layer.Organic insulating material layer is polyethylene insulation material layer or silicon rubber insulation material layer.
The fire-resisting cable that this carbon fiber-containing composite band and temperature resistant grade are high also comprise an oversheath 15 and be filled in oversheath 14 and insulation material layer 13 between filler 14.Filler 14 is filled and is restricted or polyvinyl chloride gasket for packing for polypropylene.Oversheath 15 is the one in outer protective polyethylene cover, flame-proof polyethylene oversheath, polyvinyl chloride oversheath, flame-proof polyvinyl chloride oversheath, Halogen material oversheath, TPU oversheath, TPE oversheath, nylon outer sheath.
The construction of cable of the present utility model is mainly the high fire resistance that utilizes carbon fiber self, and its 2000 ℃～fire resistance of 3000 ℃ can be protected the integrality of cable core conductor and mica tape, the more stable operation under severe flame condition of protection fire-resisting cable.
Claims (10)
1. a carbon fiber-containing composite band and the high fire-resisting cable of temperature resistant grade, comprise at least one cable core, outside cable core, wrapped one deck mica tape is as the first fire-resistant lapping layer, it is characterized in that, adopt carbon fiber composite band to be surrounded with at least fire-resistant lapping layer of one deck second outward at described the first fire-resistant lapping layer, be extruded with one deck insulation material layer outward at the second fire-resistant lapping layer.
2. carbon fiber-containing composite band as claimed in claim 1 and the high fire-resisting cable of temperature resistant grade, is characterized in that, the wrapped mode of described carbon fiber composite band repeats wrapped 2 layers to be not less than 50% Duplication.
3. carbon fiber-containing composite band as claimed in claim 1 and the high fire-resisting cable of temperature resistant grade, is characterized in that, described cable core is single conductor or the intertwist body being made up of many conductors or is optical cable.
4. carbon fiber-containing composite band as claimed in claim 1 and the high fire-resisting cable of temperature resistant grade, is characterized in that, described mica tape is synthetic mica tape or gold mica tape.
5. carbon fiber-containing composite band as claimed in claim 1 and the high fire-resisting cable of temperature resistant grade, is characterized in that, described carbon fiber composite band is that the Compound Fabric that adopts fibrous carbon fiber to make is made.
6. carbon fiber-containing composite band as claimed in claim 1 and the high fire-resisting cable of temperature resistant grade, is characterized in that, described insulation material layer is organic insulating material layer or inorganic insulating material layer.
7. carbon fiber-containing composite band as claimed in claim 6 and the high fire-resisting cable of temperature resistant grade, is characterized in that, described organic insulating material layer is polyethylene insulation material layer or silicon rubber insulation material layer.
8. the carbon fiber-containing composite band as described in claim 1 to 7 any one claim and the high fire-resisting cable of temperature resistant grade, is characterized in that, also comprise an oversheath and be filled in oversheath and insulation material layer between filler.
9. carbon fiber-containing composite band as claimed in claim 8 and the high fire-resisting cable of temperature resistant grade, is characterized in that, described filler is that polypropylene is filled rope or polyvinyl chloride gasket for packing.
10. carbon fiber-containing composite band as claimed in claim 8 and the high fire-resisting cable of temperature resistant grade, it is characterized in that, described oversheath is the one in outer protective polyethylene cover, flame-proof polyethylene oversheath, polyvinyl chloride oversheath, flame-proof polyvinyl chloride oversheath, Halogen material oversheath, TPU oversheath, TPE oversheath, nylon outer sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817901.0U CN203689969U (en) | 2013-12-11 | 2013-12-11 | Temperature-resistant and fire-resistant cable comprising carbon fiber composite tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817901.0U CN203689969U (en) | 2013-12-11 | 2013-12-11 | Temperature-resistant and fire-resistant cable comprising carbon fiber composite tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203689969U true CN203689969U (en) | 2014-07-02 |
Family
ID=51011843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320817901.0U Expired - Lifetime CN203689969U (en) | 2013-12-11 | 2013-12-11 | Temperature-resistant and fire-resistant cable comprising carbon fiber composite tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203689969U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575729A (en) * | 2014-12-30 | 2015-04-29 | 安徽顺驰电缆有限公司 | Cable |
| CN104715822A (en) * | 2015-03-17 | 2015-06-17 | 安徽太平洋电缆股份有限公司 | Inorganic mineral insulating waterproof cable with metal tube sleeve and processing method thereof |
| CN106158121A (en) * | 2016-08-24 | 2016-11-23 | 宁波华众和创工业设计有限公司 | A kind of flame retardant type flexible fire-proof cable and preparation method thereof |
| CN106443919A (en) * | 2016-10-19 | 2017-02-22 | 宁波三博电子科技有限公司 | High-shielding flexible optical cable and preparation method thereof |
| CN106483614A (en) * | 2016-10-19 | 2017-03-08 | 宁波三博电子科技有限公司 | A kind of high heat resistant type flexible optical cable and preparation method thereof |
| CN108417311A (en) * | 2018-02-24 | 2018-08-17 | 扬州迅祥电缆有限公司 | A kind of railway nylon enhancing mineral cable and preparation method thereof |
| CN110890173A (en) * | 2019-12-03 | 2020-03-17 | 江苏通鼎光电科技有限公司 | Fireproof railway digital signal cable |
-
2013
- 2013-12-11 CN CN201320817901.0U patent/CN203689969U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575729A (en) * | 2014-12-30 | 2015-04-29 | 安徽顺驰电缆有限公司 | Cable |
| CN104715822A (en) * | 2015-03-17 | 2015-06-17 | 安徽太平洋电缆股份有限公司 | Inorganic mineral insulating waterproof cable with metal tube sleeve and processing method thereof |
| CN106158121A (en) * | 2016-08-24 | 2016-11-23 | 宁波华众和创工业设计有限公司 | A kind of flame retardant type flexible fire-proof cable and preparation method thereof |
| CN106158121B (en) * | 2016-08-24 | 2017-11-17 | 长乐智睿恒创节能科技有限责任公司 | A kind of flame retardant type flexible fire-proof cable and preparation method thereof |
| CN106443919A (en) * | 2016-10-19 | 2017-02-22 | 宁波三博电子科技有限公司 | High-shielding flexible optical cable and preparation method thereof |
| CN106483614A (en) * | 2016-10-19 | 2017-03-08 | 宁波三博电子科技有限公司 | A kind of high heat resistant type flexible optical cable and preparation method thereof |
| CN106443919B (en) * | 2016-10-19 | 2019-03-01 | 江苏华脉光电科技有限公司 | A kind of high shield type flexible optical cable and preparation method thereof |
| CN106483614B (en) * | 2016-10-19 | 2019-03-05 | 江苏华脉光电科技有限公司 | A kind of high heat resistance type flexible optical cable and preparation method thereof |
| CN108417311A (en) * | 2018-02-24 | 2018-08-17 | 扬州迅祥电缆有限公司 | A kind of railway nylon enhancing mineral cable and preparation method thereof |
| CN110890173A (en) * | 2019-12-03 | 2020-03-17 | 江苏通鼎光电科技有限公司 | Fireproof railway digital signal cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190129 Address after: No. 599 Liuyuan Road, Putuo District, Shanghai, 2003 Patentee after: Shanghai Sri Cable New Material Technology Co.,Ltd. Address before: No. 599 Liuyuan Road, Putuo District, Shanghai, 2003 Patentee before: SURREY HI-TECH Inc. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |