CN102207595A - Optical fiber ribbon coating paste used in band shape optical cable and preparation method thereof - Google Patents
Optical fiber ribbon coating paste used in band shape optical cable and preparation method thereof Download PDFInfo
- Publication number
- CN102207595A CN102207595A CN 201010136240 CN201010136240A CN102207595A CN 102207595 A CN102207595 A CN 102207595A CN 201010136240 CN201010136240 CN 201010136240 CN 201010136240 A CN201010136240 A CN 201010136240A CN 102207595 A CN102207595 A CN 102207595A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- fiber ribbon
- cream
- stirred
- ribbon cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to an optical fiber ribbon coating paste used in a band shape optical cable. The paste is mainly composed of a base oil, an oil separation inhibitor, a pour-point depressant, an anti-oxidant, a tackifying lubricant, an organic densifier and a thixotropic agent. The invention also provides a preparation method of the paste. The optical fiber ribbon coating paste is mainly characterized by good colloid stability, oxidation stability, hear resistance and weatherability, free oil separation system, low acid value, large penetration degree, strong clunging, good permeability and low viscosity. The paste can help the optical fiber ribbon of the band shape optical cable always stay at a most stress-free state in the loose cannula and the cable core of the cable.
Description
Technical field
The present invention relates to a kind of fibre ribbon and apply cream and preparation method thereof, relate in particular to a kind of optical fiber ribbon cable and apply cream and preparation method thereof with fibre ribbon.
Background technology
Along with the fast development of LAN (Local Area Network) and Optical Access Network, the epoch of high-density optical-fiber network arrive, and the optical cable of big core number---optical fiber ribbon cable progressively adopts in the construction of communication network.At present the construction of fiber optic network is gradually by national backbone network turn-around zone net and metropolitan area Access Network, and the high speed development of Metropolitan Area Network (MAN) and Access Network will increase the demand to optical fiber, and optical fiber ribbon cable is because its optical fiber integrated level height and laying expense are hanged down will be used widely; Since the optical fiber ribbon cable structure singularity---loose casing diameter is more many greatly (about ordinary optical cable ferrule Φ 1.8mm than the diameter of ordinary optical cable, about optical fiber ribbon cable light sleeve pipe Φ 12mm), in order to ensure optical fiber ribbon cable drip not under 80 ℃ of high temperature, the cone penetration of the fine cream of the optical fiber ribbon cable generally cone penetration than the fine cream of ordinary optical cable is little, fine cream cone penetration is little just to mean that fine cream is thicker, and the optical fiber in the optical fiber ribbon cable normally is present in the optical fiber loose tube with flat assembly carrier state, because fine cream is thicker, the fibre ribbon surface will produce and fill discontented phenomenon in filling process, will cause the optical fiber surface discontinuity like this, thereby generation stress causes the Optical Fiber Transmission performance degradation.The method that addresses this is that can add fine cream coating unit one in the front of fibre ribbon pine cover, this fine cream must possess the performance of little viscosity and big cone penetration, and the flowability of fine cream must be good, strong adhesion, good penetrability and technical indicator will meet the requirement of common fine cream, can not analyse oil.The cone penetration index should be greater than 5001/10mm in the time of 25 ℃; Viscosity index in the time of 25 ℃ less than 3500mpa.s.
At present, optical fiber ribbon cable producer increases gradually for the demand that fibre ribbon applies cream on the home market, viscosity is little because this coating cream has, cone penetration big (fine cream is rarer), strong adhesion, characteristics such as good penetrability, it can make coating cream soak into equably and be coated in the fibre ribbon surface, guarantee that ribbon fiber reaches cable core and can be in unstress state the most freely all the time in cable in loose sleeve pipe, reduce the microbending loss and the stress corrosion of fibre ribbon under stress, moisture content and moisture effect of fibre ribbon.
But still do not have the fibre ribbon that really can reach above-mentioned requirements in the market and apply cream.
Summary of the invention
Purpose of the present invention provides a kind of optical fiber ribbon cable to apply cream with fibre ribbon at the problems referred to above exactly, and this fibre ribbon applies cream can thoroughly solve use and the protection question of optical fiber ribbon cable under various natural environment and climate conditions, to guarantee the transmission performance of optical fiber ribbon cable.
Another object of the present invention is to provide a kind of above-mentioned fibre ribbon to apply the preparation method of cream.
The used in order to reach the goal technical scheme of the present invention is:
A kind of optical fiber ribbon cable applies cream with fibre ribbon, comprises following feed composition and weight percent content thereof:
Base oil 70～85%;
Oil dividing inhibitor 5～15%;
Antioxidant 0.3～1%;
Organic viscosifying agent 2～10%;
Tackify lubricant 2～10%;
Thixotropic agent 1～8%;
Pour-point depressant 0.1～3%.
Above-mentioned optical fiber ribbon cable applies cream with fibre ribbon, wherein, described base oil is selected from least a in 3 class hydrogenation white oils and the synthetic oil, described oil dividing inhibitor is selected from polyisobutylene or polybutylene, described antioxidant is high-temp liquid antioxidant, described organic viscosifying agent is selected from high molecular polymer thermoplasticity synthetic rubber, and described tackify lubricant is selected from the high molecular polymer synthetic rubber.
Above-mentioned raw materials is the commercially available prod.
The present invention also provides the preparation method of a kind of above-mentioned optical fiber ribbon cable with fibre ribbon coating cream, may further comprise the steps:
Earlier pour-point depressant is added in the base oil, after the full and uniform stirring, add oil dividing inhibitor, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add organic viscosifying agent, continue to heat and stirred 2～5 hours, treat that temperature rises to 160 ℃, stop to heat, add the tackify lubricant, after the insulated and stirred 1～3 hour, add antioxidant and stirred again 0.5-1 hour, and then cooling is cooled to 50 ℃～80 ℃, the adding thixotropic agent, fully feed back stirred after 1～3 hour, grind through homogeneous, vacuum outgas obtains final products.
Above-mentioned optical fiber ribbon cable applies among the preparation method of cream with fibre ribbon, and described final products are water white transparency shape colloid.
Optical fiber ribbon cable of the present invention applies cream with fibre ribbon, its principal character is that not containing in traditional fine paste formulation with inorganics gas-phase silica (silicon dioxide) is the fine cream product that main thickening agent is made, it with the organic polymer synthetic polymer serve as main thickening agent in addition the tackify lubricant make, its key property is to have good colloid stability and oxidation stability, thermotolerance, weatherability, system are regardless of oil, acid number is little; Big cone penetration, strong adhesion, good penetrability, low viscosity, it can make fibre ribbon reach cable core in loose sleeve pipe can be in unstress state the most freely all the time in cable.
Optical fiber ribbon cable of the present invention applies with fibre ribbon and need not heat when the cream product applies, apply behind the ribbon fiber and can play effects such as good protection against the tide, waterproof, shockproof, buffering, anti-high and low-temp, oversheath in the optical fiber ribbon cable and optical fiber are had good compatibility optical fiber ribbon cable.This product processing technique is simple, production environment cleaning, pollution-free, water resisting property is strong, high temperature performance is good, is novel Green Product.
Embodiment
Below in conjunction with embodiment the present invention is further described:
Embodiment 1
Earlier 2 gram pour-point depressants are joined (300 gram synthetic oils and 473 grams, 3 class hydrogenation white oils) in the 773 gram miscellas, after the full and uniform stirring, add 100 gram polyisobutylene oil dividing inhibitors, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add the organic viscosifying agent of 70 grams, continue to heat and stirred 2～5 hours, when treating that temperature rises to 160 ℃, stop to heat, add 30 gram tackify lubricants, after the insulated and stirred 1～3 hour, add 5 gram antioxidant, continue again to stir 0.5～1 hour, and then cooling is cooled to 50 ℃～80 ℃, add 20 gram thixotropic agent, fully feed back stirred after 1～3 hour, ground through homogeneous, vacuum outgas, the final products that obtain at last are the water white transparency colloid.
In the above-mentioned raw materials, it is the product of NACOFLOW195 that pour-point depressant is selected Daopu Chemical International Trade Co., Ltd., Shanghai, model for use, it is the product of G1702 that organic viscosifying agent is selected U.S. Kraton company, model for use, it is the product of SV150 that the tackify lubricant is selected Infineum company, model for use, it is the high-temp liquid antioxidant of L135 that antioxidant is selected Ciba (China) company limited, model for use, and it is the product of IrgafIO 1100V that thixotropic agent is selected Ciba (China) company limited, model for use.
These final products leading indicator after testing are: outward appearance (water white transparency); Thixotropic index value (8); Flash-point (230 ℃); Cone penetration (25 ℃, 1/10mm, 550); Colour stability (130 ℃, 120h, 0.1); Oxidation induction period (190 ℃,＞60min); Liberation of hydrogen value (80 ℃, 24h, 0.003 μ l/g); Analyse oil (80 ℃, 24h, 0%); Evaporation capacity (80 ℃, 24h, 0.08%); Viscosity (25 ℃, D=50S
-1, 3200mpa.s); Water resisting property (20 ℃, 7d, do not disintegrate, not emulsification), acid number (0.05mgKOH/g); Water cut (nothing); Good with all material compatibility.
Embodiment 2
Earlier 3 gram pour-point depressants are joined (300 gram synthetic oils and 464 grams, 3 class hydrogenation white oils) in the 764 gram miscellas, after the full and uniform stirring, add 110 gram polybutylene oil dividing inhibitors, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add the organic viscosifying agent of 73 grams, continue to heat and stirred 2～5 hours, when treating that temperature rises to 160 ℃, stop to heat, add 25 gram tackify lubricants, after the insulated and stirred 1～3 hour, add 5 gram antioxidant, continue again to stir 0.5～1 hour, and then cooling is cooled to 50 ℃～80 ℃, add 20 gram thixotropic agent, fully feed back stirred after 1～3 hour, ground through homogeneous, vacuum outgas, the final products that obtain at last are the water white transparency colloid.
In the above-mentioned raw materials, it is the product of NACOFLOW195 that pour-point depressant is selected Daopu Chemical International Trade Co., Ltd., Shanghai, model for use, it is the product of G1702 that organic viscosifying agent is selected U.S. Kraton company, model for use, it is the product of SV150 that the tackify lubricant is selected Infineum company, model for use, it is the high-temp liquid antioxidant of L135 that antioxidant is selected Ciba (China) company limited, model for use, and it is the product of IrgafIO 1100V that thixotropic agent is selected Ciba (China) company limited, model for use.
These final products leading indicator after testing are: outward appearance (water white transparency); Thixotropic index value (8); Flash-point (230 ℃); Cone penetration (25 ℃, 1/10mm, 560); Colour stability (130 ℃, 120h, 0.1); Oxidation induction period (190 ℃,＞60min); Liberation of hydrogen value (80 ℃, 24h, 0.003 μ l/g); Analyse oil (80 ℃, 24h, 0%); Evaporation capacity (80 ℃, 24h, 0.08%); Viscosity (25 ℃, D=50S
-1, 3300mpa.s); Water resisting property (20 ℃, 7d, do not disintegrate, not emulsification), acid number (0.05mgKOH/g); Water cut (nothing); Good with all material compatibility.
Embodiment 3
Earlier 5 gram pour-point depressants are joined in 759 grams, the 3 class hydrogenation white oils, after the full and uniform stirring, add 100 gram polyisobutylene oil dividing inhibitors, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add the organic viscosifying agent of 75 grams, continue to heat and stirred 2～5 hours, when treating that temperature rises to 160 ℃, stop to heat, add 30 gram tackify lubricants, after the insulated and stirred 1～3 hour, add 6 gram antioxidant, continue again to stir 0.5～1 hour, and then cooling is cooled to 50 ℃～80 ℃, add 25 gram thixotropic agent, fully feed back stirred after 1～3 hour, ground through homogeneous, vacuum outgas, the final products that obtain at last are the water white transparency colloid.
In the above-mentioned raw materials, it is the product of NACOFLOW195 that pour-point depressant is selected Daopu Chemical International Trade Co., Ltd., Shanghai, model for use, it is the product of G1702 that organic viscosifying agent is selected U.S. Kraton company, model for use, it is the product of SV150 that the tackify lubricant is selected Infineum company, model for use, it is the high-temp liquid antioxidant of L135 that antioxidant is selected Ciba (China) company limited, model for use, and it is the product of IrgafIO 1100V that thixotropic agent is selected Ciba (China) company limited, model for use.
These final products leading indicator after testing are: outward appearance (water white transparency); Thixotropic index value (8); Flash-point (230 ℃); Cone penetration (25 ℃, 1/10mm, 555); Colour stability (130 ℃, 120h, 0.1); Oxidation induction period (190 ℃,＞60min); Liberation of hydrogen value (80 ℃, 24h, 0.003 μ l/g); Analyse oil (80 ℃, 24h, 0%); Evaporation capacity (80 ℃, 24h, 0.08%); Viscosity (25 ℃, D=50S
-1, 3250mpa.s); Water resisting property (20 ℃, 7d, do not disintegrate, not emulsification), acid number (0.05mgKOH/g); Water cut (nothing); Good with all material compatibility.
Embodiment 4
Earlier 5 gram pour-point depressants are joined in the 739 gram synthetic oils, after the full and uniform stirring, add 115 gram polybutylene oil dividing inhibitors, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add the organic viscosifying agent of 75 grams, continue to heat and stirred 2～5 hours, when treating that temperature rises to 160 ℃, stop to heat, add 35 gram tackify lubricants, after the insulated and stirred 1～3 hour, add 6 gram antioxidant, continue again to stir 0.5～1 hour, and then cooling is cooled to 50 ℃～80 ℃, add 25 gram thixotropic agent, fully feed back stirred after 1～3 hour, ground through homogeneous, vacuum outgas, the final products that obtain at last are the water white transparency colloid.
In the above-mentioned raw materials, it is the product of NACOFLOW195 that pour-point depressant is selected Daopu Chemical International Trade Co., Ltd., Shanghai, model for use, it is the product of G1702 that organic viscosifying agent is selected U.S. Kraton company, model for use, it is the product of SV150 that the tackify lubricant is selected Infineum company, model for use, it is the high-temp liquid antioxidant of L135 that antioxidant is selected Ciba (China) company limited, model for use, and it is the product of IrgafIO 1100V that thixotropic agent is selected Ciba (China) company limited, model for use.
These final products leading indicator after testing are: outward appearance (water white transparency); Thixotropic index value (8); Flash-point (230 ℃); Cone penetration (25 ℃, 1/10mm, 545); Colour stability (130 ℃, 120h, 0.1); Oxidation induction period (190 ℃,＞60min); Liberation of hydrogen value (80 ℃, 24h, 0.003 μ l/g); Analyse oil (80 ℃, 24h, 0%); Evaporation capacity (80 ℃, 24h, 0.05%); Viscosity (25 ℃, D=50S
-1, 3100mpa.s); Water resisting property (20 ℃, 7d, do not disintegrate, not emulsification), acid number (0.05mgKOH/g); Water cut (nothing); Good with all material compatibility.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (8)
1. an optical fiber ribbon cable applies cream with fibre ribbon, it is characterized in that, this fibre ribbon applies cream and comprises following feed composition and weight percent content thereof:
Base oil 70～85%;
Oil dividing inhibitor 5～15%;
Antioxidant 0.3～1%;
Organic viscosifying agent 2～10%;
Tackify lubricant 2～10%;
Thixotropic agent 1～8%;
Pour-point depressant 0.1～3%.
2. optical fiber ribbon cable applies cream with fibre ribbon according to claim 1, it is characterized in that, described base oil is selected from least a in 3 class hydrogenation white oils and the synthetic oil.
3. optical fiber ribbon cable applies cream with fibre ribbon according to claim 1, it is characterized in that, described oil dividing inhibitor is selected from polyisobutylene or polybutylene.
4. optical fiber ribbon cable applies cream with fibre ribbon according to claim 1, it is characterized in that, described antioxidant is high-temp liquid antioxidant.
5. optical fiber ribbon cable applies cream with fibre ribbon according to claim 1, it is characterized in that, described organic viscosifying agent is selected from high molecular polymer thermoplasticity synthetic rubber.
6. optical fiber ribbon cable applies cream with fibre ribbon according to claim 1, it is characterized in that, described tackify lubricant is selected from the high molecular polymer synthetic rubber.
One kind according to claim 1 optical fiber ribbon cable apply the preparation method of cream with fibre ribbon, it is characterized in that, may further comprise the steps:
Earlier pour-point depressant is added in the base oil, after the full and uniform stirring, add oil dividing inhibitor, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add organic viscosifying agent, continue to heat and stirred 2～5 hours, treat that temperature rises to 160 ℃, stop to heat, add the tackify lubricant, after the insulated and stirred 1～3 hour, add antioxidant and stirred again 0.5-1 hour, and then cooling is cooled to 50 ℃～80 ℃, the adding thixotropic agent, fully feed back stirred after 1～3 hour, grind through homogeneous, vacuum outgas obtains final products.
8. apply the preparation method of cream as optical fiber ribbon cable as described in the claim 7 with fibre ribbon, it is characterized in that described final products are water white transparency shape colloid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136240 CN102207595B (en) | 2010-03-30 | 2010-03-30 | Optical fiber ribbon coating paste used in band shape optical cable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136240 CN102207595B (en) | 2010-03-30 | 2010-03-30 | Optical fiber ribbon coating paste used in band shape optical cable and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102207595A true CN102207595A (en) | 2011-10-05 |
| CN102207595B CN102207595B (en) | 2013-02-13 |
Family
ID=44696518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010136240 Active CN102207595B (en) | 2010-03-30 | 2010-03-30 | Optical fiber ribbon coating paste used in band shape optical cable and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102207595B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980546A (en) * | 2019-12-17 | 2021-06-18 | 深圳科创新源新材料股份有限公司 | Antiseptic paste and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6085009A (en) * | 1998-05-12 | 2000-07-04 | Alcatel | Water blocking gels compatible with polyolefin optical fiber cable buffer tubes and cables made therewith |
| US20040109652A1 (en) * | 2002-12-04 | 2004-06-10 | Alcatel | Fiber optic cables with a hydrogen absorbing material |
| CN1712504A (en) * | 2004-06-22 | 2005-12-28 | 上海鸿辉光通材料有限公司 | Filling oil-containing semi-solid composition for fibre-otpical composite overhead earth wire |
| CN101645329A (en) * | 2008-08-06 | 2010-02-10 | 上海鸿辉光通材料有限公司 | Water-blocking filling paste for optical cable |
-
2010
- 2010-03-30 CN CN 201010136240 patent/CN102207595B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6085009A (en) * | 1998-05-12 | 2000-07-04 | Alcatel | Water blocking gels compatible with polyolefin optical fiber cable buffer tubes and cables made therewith |
| US20040109652A1 (en) * | 2002-12-04 | 2004-06-10 | Alcatel | Fiber optic cables with a hydrogen absorbing material |
| CN1712504A (en) * | 2004-06-22 | 2005-12-28 | 上海鸿辉光通材料有限公司 | Filling oil-containing semi-solid composition for fibre-otpical composite overhead earth wire |
| CN101645329A (en) * | 2008-08-06 | 2010-02-10 | 上海鸿辉光通材料有限公司 | Water-blocking filling paste for optical cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980546A (en) * | 2019-12-17 | 2021-06-18 | 深圳科创新源新材料股份有限公司 | Antiseptic paste and preparation method and application thereof |
| CN112980546B (en) * | 2019-12-17 | 2022-12-20 | 深圳科创新源新材料股份有限公司 | Antiseptic paste and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102207595B (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102005263B (en) | Flame-retardant fiber filling gel for optical cable and preparation method thereof | |
| CN102207594B (en) | Thixotropic optical fiber filling paste for ribbon optical cable and preparation method thereof | |
| CN103421293B (en) | Polycarbonate composite material and preparation method thereof | |
| CN1712504A (en) | Filling oil-containing semi-solid composition for fibre-otpical composite overhead earth wire | |
| CN101746963B (en) | Impregnating compound resisting ultrahigh voltage for direct roving of alkali-free glass fibers for insulators | |
| CN102207595B (en) | Optical fiber ribbon coating paste used in band shape optical cable and preparation method thereof | |
| CN102902026A (en) | Optical fiber filling paste for polypropylene tube optical cable and preparation method thereof | |
| CN102207593B (en) | No-silicon type thixotropic optical fiber filling paste for optical cable and preparing method thereof | |
| CN105301714A (en) | Micro-cable optical fiber filling paste and preparation method therefor | |
| CN102411175B (en) | Water-repellency cold application filling paste used in optical cable and preparation method thereof | |
| CN105176104A (en) | Optical cable filling factice | |
| CN101649086B (en) | Preparation method of factice for filling cables | |
| CN1314612C (en) | Colourless transparent optical fiber ointment and preparation method thereof | |
| CN103061136B (en) | Glass fiber yarn for blocking water for optical cable | |
| CN112126493B (en) | Optical fiber ointment and optical fiber composite carbon fiber lead | |
| CN102936419A (en) | Fire retardation type low hydrogen evolution optical fiber filling paste for optic fiber cable | |
| CN106981331B (en) | It is a kind of to surpass six class cables with the shield type of tension function with blocking water | |
| CN103257418A (en) | Planar optical waveguide branching unit and encapsulating method thereof | |
| CN103709494A (en) | Low-smoke halogen-free flame-retardant tight buffer material for optical fiber and preparation method thereof | |
| CN106317660A (en) | Optical fiber filling paste for cable loose tube and preparation method thereof | |
| CN103809257B (en) | A kind of optical cable GTL base oil filling paste and preparation method thereof | |
| CN104749724B (en) | A kind of new high flame retardant optical fiber filling paste and preparation method thereof | |
| CN203275722U (en) | Planar lightwave circuit splitter | |
| CN104177694A (en) | High-binding-strength optical cable coating material | |
| CN112151212B (en) | Optical fiber composite carbon fiber lead |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 201818 No. 33 Lixin Road, Shanghai, Jiading District Applicant after: Shanghai Honghui Optics Communication Tech. Corp. Address before: 201818 No. 33 Lixin Road, Shanghai, Jiading District Applicant before: Honghui Optical Material Co., Ltd., Shanghai |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HONGHUI OPTICAL MATERIAL CO., LTD., SHANGHAI TO: SHANGHAI HONGHUI OPTICS COMMUNICATION TECH. CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 201822 Shanghai city Jiading District Fengdeng Road No. 398 Patentee after: Shanghai Honghui Optics Communication Tech. Corp. Address before: 201818 No. 33 Lixin Road, Shanghai, Jiading District Patentee before: Shanghai Honghui Optics Communication Tech. Corp. |