CN103241983B - Preparation method of graphene oxide modified polycarboxylic acid type water-reducer - Google Patents
Preparation method of graphene oxide modified polycarboxylic acid type water-reducer Download PDFInfo
- Publication number
- CN103241983B CN103241983B CN201310192111.2A CN201310192111A CN103241983B CN 103241983 B CN103241983 B CN 103241983B CN 201310192111 A CN201310192111 A CN 201310192111A CN 103241983 B CN103241983 B CN 103241983B
- Authority
- CN
- China
- Prior art keywords
- mass parts
- reducer
- graphene oxide
- polycarboxylic acid
- preparation
- 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.)
- Active
Links
Abstract
The invention relates to a preparation method of a graphene oxide modified polycarboxylic acid type water-reducer. A polycarboxylic acid type water-reducer is a novel efficient water-reducer following a naphthalene type water-reducer, a melamine water-reducer and an amino sulfonic acid based water-reducer, but the mechanical property of concrete cannot be obviously improved by adding the polycarboxylic acid type water-reducer. The preparation method comprises the steps of preparing graphene oxide with natural flake graphite, sodium nitrate, concentrated sulfuric acid and potassium permanganate as raw materials; carrying out ultrasonic dispersion on the graphene oxide; and then adding the polycarboxylic acid type water-reducer with a certain proportion to form an intercalation compound of the graphene oxide and the polycarboxylic acid type water-reducer. With the adoption of the modified water-reducer, on the basisthat the existing water-reducing rate is kept, the flexural strength and the compressive strength of a cement-based composite are obviously strengthened, the relevant raw materials are easily obtained, a preparation technology is reasonable, pollution in a preparation process is little, the performance of products is excellent, and the graphene oxide modified polycarboxylic acid type water-reducer is suitable for industrial production.
Description
Technical field
a kind of modified polycarboxylic acid based water reducer of the present invention, is specifically related to a kind of preparation method of graphene oxide modified polycarboxylic acid based water reducer.
Background technology
Poly carboxylic acid series water reducer is the new and effective water reducer after naphthalene system, melamine system and amidosulfonic acid based water reducer.Poly carboxylic acid series water reducer is a kind of anionic polymeric surface active agent in itself, and the major function group in generally using sulfonic group and carboxyl as molecular structure, provides space steric effect with polyoxyethylene segment, the pectination of complete.It not only has, and volume is low, water-reducing rate advantages of higher, can also improve concrete hole structure and compaction rate, be widely used in the engineering that highway, railway, bridge etc. have relatively high expectations to quality, be the key of high-performance green concrete development, but adding of poly carboxylic acid series water reducer can not obviously improve concrete mechanical property.
Summary of the invention
The object of this invention is to provide a kind of preparation method that can significantly improve the graphene oxide modified polycarboxylic acid based water reducer of mechanical property after cement solidification.
The technical solution adopted in the present invention is:
1, the preparation method of graphene oxide modified polycarboxylic acid based water reducer, is characterized in that:
Realized by following steps:
Step 1: the preoxidation of graphite:
The vitriol oil that is 98% by 20-30 mass parts, massfraction successively under agitation condition, 2.5-3.5 mass parts Potassium Persulphate and 2.5-3.5 mass parts Vanadium Pentoxide in FLAKES join in reactor, be warmed up to 80 DEG C, under agitation gradation adds 2-5 mass parts natural graphite raw material, be stirred to evenly, at 80 DEG C, keep 6 hours, filtered sample is washed until solution is extremely neutral, drying for standby;
Step 2: the preparation of graphene oxide:
Under condition of ice bath, by Graphite Powder 99 1.5 mass parts and 1 mass parts SODIUMNITRATE, 60 mass parts, massfraction is that 98% the vitriol oil joins in reactor and mixes successively, under stirring, in 1 hour, add the potassium permanganate of 6-10 mass parts, be no more than under the condition of 5 DEG C stirring reaction in temperature 1 hour, temperature is raised to 35-45 DEG C of stirring reaction 20-30 hour, add the deionized water of 400-500 mass parts, temperature is raised to 70-80 DEG C of reaction 30 minutes, add again the deionized water of 200-300 mass parts, by 30 mass parts, massfraction is that 30% hydrogen peroxide added in 30 minutes, solution becomes glassy yellow by brown, gained solution is down to room temperature and is carried out centrifugation, deionized water wash, until washings pH is 7, by the ultrasonication of 350W 1 hour, gained solution is graphite oxide aqueous solution, the massfraction of controlling graphite oxide aqueous solution is 0.5%,
Step 3: the preparation of modified polycarboxylic acid based water reducer:
The massfraction that 10 mass parts graphene oxide solution is joined to 90 mass parts, effective constituent is in the poly carboxylic acid series water reducer of 20 %, stirs and uses ultrasonication 1 hour, obtains modified polycarboxylic acid based water reducer.
In step 3, poly carboxylic acid series water reducer is chosen the poly carboxylic acid series water reducer of being produced by Xi'an light building materials Engineering Co., Ltd.
The present invention has the following advantages:
The processing condition of graphene oxide provided by the invention are the mixture of preparing the graphene oxide of rich oxygen content (oxygen level is greater than 30%) and forming with poly carboxylic acid series water reducer, it is graphene oxide modified polycarboxylic acid based water reducer, water reducer after modification is keeping on the basis of original water-reducing rate, the bending and compressive strength of cement-base composite material is obviously strengthened, the raw material the present invention relates to is easy to get, and preparation technology is reasonable, and preparation process is polluted few, excellent product performance, is applicable to suitability for industrialized production.
Brief description of the drawings
Fig. 1 is graphene oxide spectroscopy detection result.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail.
The invention provides rich oxygen content graphene oxide dispersion liquid preparation method and with poly carboxylic acid series water reducer method of modifying, the principle of modification is mainly that poly carboxylic acid series water reducer and rich oxygen content graphene oxide have formed intercalated compound, keep the original water-reducing property of poly carboxylic acid series water reducer, and can promote cement-base composite material hydrated product form shape regular microcrystal, high performance concrete is reached and strengthen toughness reinforcing effect, significantly improved the mechanical property after cement solidification.
The preparation method of the graphene oxide modified polycarboxylic acid based water reducer the present invention relates to, is realized by following steps:
Step 1: the preoxidation of graphite:
The vitriol oil that is 98% by 20-30 mass parts, massfraction successively under agitation condition, 2.5-3.5 mass parts Potassium Persulphate and 2.5-3.5 mass parts Vanadium Pentoxide in FLAKES join in reactor, be warmed up to 80 DEG C, under agitation gradation adds 2-5 mass parts natural graphite raw material, be stirred to evenly, at 80 DEG C, keep 6 hours, filtered sample is washed until solution is extremely neutral, drying for standby;
Step 2: the preparation of graphene oxide:
Under condition of ice bath, by Graphite Powder 99 1.5 mass parts and 1 mass parts SODIUMNITRATE, 60 mass parts, massfraction is that 98% the vitriol oil joins in reactor and mixes successively, under stirring, in 1 hour, add the potassium permanganate of 6-10 mass parts, be no more than under the condition of 5 DEG C stirring reaction in temperature 1 hour, temperature is raised to 35-45 DEG C of stirring reaction 20-30 hour, add the deionized water of 400-500 mass parts, temperature is raised to 70-80 DEG C of reaction 30 minutes, add again the deionized water of 200-300 mass parts, by 30 mass parts, massfraction is that 30% hydrogen peroxide added in 30 minutes, solution becomes glassy yellow by brown, gained solution is down to room temperature and is carried out centrifugation, deionized water wash, until washings pH is 7, by the ultrasonication of 350W 1 hour, gained solution is graphite oxide aqueous solution, graphene oxide oxygen level is greater than 30%, the massfraction of controlling graphite oxide aqueous solution is 0.5%,
Step 3: the preparation of modified polycarboxylic acid based water reducer:
The massfraction that 10 mass parts graphene oxide solution is joined to 90 mass parts, effective constituent is in the poly carboxylic acid series water reducer of 20 %, stirs and uses ultrasonication 1 hour, obtains modified polycarboxylic acid based water reducer.
In step 3, poly carboxylic acid series water reducer is chosen the poly carboxylic acid series water reducer of being produced by Xi'an light building materials Engineering Co., Ltd.
Embodiment 1:
Step 1: the preoxidation of graphite:
The vitriol oil that is 98% by 20 mass parts, massfraction successively under agitation condition, 2.5 mass parts Potassium Persulphates and 2.5 mass parts Vanadium Pentoxide in FLAKESs join in reactor, be warmed up to 80 DEG C, under agitation gradation adds 2 mass parts natural graphite raw materials, be stirred to evenly, at 80 DEG C, keep 6 hours, filtered sample is washed until solution is extremely neutral, drying for standby;
Step 2: the preparation of graphene oxide:
Under condition of ice bath, by Graphite Powder 99 1.5 mass parts and 1 mass parts SODIUMNITRATE, 60 mass parts, massfraction is that 98% the vitriol oil joins in reactor and mixes successively, under stirring, in 1 hour, add the potassium permanganate of 6 mass parts, be no more than under the condition of 5 DEG C stirring reaction in temperature 1 hour, temperature is raised to 35 DEG C of stirring reactions 20 hours, add the deionized water of 400 mass parts, temperature is raised to 70 DEG C of reactions 30 minutes, add again the deionized water of 200 mass parts, by 30 mass parts, massfraction is that 30% hydrogen peroxide added in 30 minutes, solution becomes glassy yellow by brown, gained solution is down to room temperature and is carried out centrifugation, deionized water wash, until washings pH is 7, by the ultrasonication of 350W 1 hour, gained solution is graphite oxide aqueous solution, the massfraction of controlling graphite oxide aqueous solution is 0.5%,
Step 3: the preparation of modified polycarboxylic acid based water reducer:
The massfraction that 10 mass parts graphene oxide solution is joined to 90 mass parts, effective constituent is in the poly carboxylic acid series water reducer of 20 %, stirs and uses ultrasonication 1 hour, obtains modified polycarboxylic acid based water reducer.
In step 3, poly carboxylic acid series water reducer is chosen the poly carboxylic acid series water reducer of being produced by Xi'an light building materials Engineering Co., Ltd.
Embodiment 2:
Step 1: the preoxidation of graphite:
The vitriol oil that is 98% by 25 mass parts, massfraction successively under agitation condition, 3 mass parts Potassium Persulphates and 3 mass parts Vanadium Pentoxide in FLAKESs join in reactor, be warmed up to 80 DEG C, under agitation gradation adds 4 mass parts natural graphite raw materials, be stirred to evenly, at 80 DEG C, keep 6 hours, filtered sample is washed until solution is extremely neutral, drying for standby;
Step 2: the preparation of graphene oxide:
Under condition of ice bath, by Graphite Powder 99 1.5 mass parts and 1 mass parts SODIUMNITRATE, 60 mass parts, massfraction is that 98% the vitriol oil joins in reactor and mixes successively, under stirring, in 1 hour, add the potassium permanganate of 8 mass parts, be no more than under the condition of 5 DEG C stirring reaction in temperature 1 hour, temperature is raised to 40 DEG C of stirring reactions 25 hours, add the deionized water of 450 mass parts, temperature is raised to 75 DEG C of reactions 30 minutes, add again the deionized water of 250 mass parts, by 30 mass parts, massfraction is that 30% hydrogen peroxide added in 30 minutes, solution becomes glassy yellow by brown, gained solution is down to room temperature and is carried out centrifugation, deionized water wash, until washings pH is 7, by the ultrasonication of 350W 1 hour, gained solution is graphite oxide aqueous solution, the massfraction of controlling graphite oxide aqueous solution is 0.5%,
Step 3: the preparation of modified polycarboxylic acid based water reducer:
The massfraction that 10 mass parts graphene oxide solution is joined to 90 mass parts, effective constituent is in the poly carboxylic acid series water reducer of 20 %, stirs and uses ultrasonication 1 hour, obtains modified polycarboxylic acid based water reducer.
In step 3, poly carboxylic acid series water reducer is chosen the poly carboxylic acid series water reducer of being produced by Xi'an light building materials Engineering Co., Ltd.
Product performance test of the present invention:
X-gamma spectrometer (EDS, EDAX, USA) detected result as shown in Figure 1.Graphene oxide oxygen level 34.37% prepared by the present invention.
Concrete application:
Pressure-proof and snap-resistent intensity experiment: the anti-folding, the ultimate compression strength that have detected cement mortar according to GB/T 50080-2002.Standard sand is produced by Xiamen standard sand factory, meets ISO benchmark sand size distribution and moisture content requirement, the renown cement (P.O 42.5R) that cement adopts Shaanxi renown cement limited-liability company to produce.Mortar is to be puddled and formed by 450 grams of cement, 1350 grams of standard sands and 150 grams of water and water reducer.Water reducer is respectively poly carboxylic acid series water reducer (Xi'an light building materials Engineering Co., Ltd produces, content 20%) and this patent product, the results are shown in Table 1.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solution of the present invention by reading specification sheets of the present invention, is claim of the present invention and contains.
Claims (2)
1. the preparation method of graphene oxide modified polycarboxylic acid based water reducer, is characterized in that:
Realized by following steps:
Step 1: the preoxidation of graphite:
The vitriol oil that is 98% by 20-30 mass parts, massfraction successively under agitation condition, 2.5-3.5 mass parts Potassium Persulphate and 2.5-3.5 mass parts Vanadium Pentoxide in FLAKES join in reactor, be warmed up to 80 DEG C, under agitation gradation adds 2-5 mass parts natural graphite raw material, be stirred to evenly, at 80 DEG C, keep 6 hours, filtered sample washing until solution to neutral, the dry Graphite Powder 99 that obtains preoxidation is for subsequent use;
Step 2: the preparation of graphene oxide:
Under condition of ice bath, Graphite Powder 99 1.5 mass parts of the preoxidation that step 1 is made and 1 mass parts SODIUMNITRATE, 60 mass parts, massfraction is that 98% the vitriol oil joins in reactor and mixes successively, under stirring, in 1 hour, add the potassium permanganate of 6-10 mass parts, be no more than under the condition of 5 DEG C stirring reaction in temperature 1 hour, temperature is raised to 35-45 DEG C of stirring reaction 20-30 hour, add the deionized water of 400-500 mass parts, temperature is raised to 70-80 DEG C of reaction 30 minutes, add again the deionized water of 200-300 mass parts, by 30 mass parts, massfraction is that 30% hydrogen peroxide added in 30 minutes, solution becomes glassy yellow by brown, gained solution is down to room temperature and is carried out centrifugation, deionized water wash, until washings pH is 7, by the ultrasonication of 350W 1 hour, gained solution is graphite oxide aqueous solution, the massfraction of controlling graphite oxide aqueous solution is 0.5%,
Step 3: the preparation of modified polycarboxylic acid based water reducer:
By 10 mass parts graphene oxide solution join 90 mass parts, solid content is in the poly carboxylic acid series water reducer of 20 %, stirs and uses ultrasonication 1 hour, obtains modified polycarboxylic acid based water reducer.
2. the preparation method of graphene oxide modified polycarboxylic acid based water reducer according to claim 1, is characterized in that:
In step 3, poly carboxylic acid series water reducer is chosen the poly carboxylic acid series water reducer of being produced by Xi'an light building materials Engineering Co., Ltd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310192111.2A CN103241983B (en) | 2013-05-22 | 2013-05-22 | Preparation method of graphene oxide modified polycarboxylic acid type water-reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310192111.2A CN103241983B (en) | 2013-05-22 | 2013-05-22 | Preparation method of graphene oxide modified polycarboxylic acid type water-reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103241983A CN103241983A (en) | 2013-08-14 |
| CN103241983B true CN103241983B (en) | 2014-07-16 |
Family
ID=48921893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310192111.2A Active CN103241983B (en) | 2013-05-22 | 2013-05-22 | Preparation method of graphene oxide modified polycarboxylic acid type water-reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103241983B (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539108B (en) * | 2013-10-22 | 2016-01-20 | 泰山医学院 | A kind of method preparing graphene oxide |
| CN104876204B (en) * | 2015-05-21 | 2017-03-01 | 东南大学 | A kind of method of modifying of graphene oxide |
| CN105271191B (en) * | 2015-10-13 | 2018-06-22 | 华南理工大学 | A kind of redox graphene and preparation method and application |
| CN106810101B (en) * | 2015-12-01 | 2019-03-01 | 济南大学 | The preparation method of graphene oxide enhanced cement grinding aid |
| CN105541210B (en) * | 2015-12-28 | 2017-09-15 | 四川碳世界科技有限公司 | A kind of graphene oxide concrete |
| CN105731861B (en) * | 2016-02-19 | 2018-08-17 | 陕西科技大学 | Surface of graphene oxide molecular imprinting composite material and preparation method thereof for tracking poly carboxylic acid series water reducer |
| CN105731933B (en) * | 2016-03-01 | 2018-09-14 | 青岛华高墨烯科技股份有限公司 | A kind of preparation method of graphene oxide/high-strength concrete composite material |
| CN106007450A (en) * | 2016-03-24 | 2016-10-12 | 东南大学 | Modified graphene oxide cement concrete early strength agent and application thereof |
| CN106045430A (en) * | 2016-06-08 | 2016-10-26 | 新疆青水立源工程检测有限公司 | Cementing material for PCCP (prestressed concrete cylinder pipe) injecting mortar layer and production method of cementing material |
| CN106045435B (en) * | 2016-06-08 | 2019-02-19 | 新疆研科节能科技有限公司 | 3D printing non-cement-based cementitious material and preparation method thereof |
| CN106496438B (en) * | 2016-10-09 | 2018-09-28 | 武汉海剑环保材料有限公司 | A kind of amidation graphene oxide modified polycarboxylic acid water-reducing agent and preparation method thereof |
| CN106478895B (en) * | 2016-10-09 | 2019-02-01 | 武汉工程大学 | A kind of compound polycarboxylate water-reducer of graphene oxide and preparation method thereof |
| CN106746834B (en) * | 2016-11-28 | 2018-12-14 | 中铁十二局集团有限公司 | A kind of graphene-based nanocrystal class early strength agent and preparation method thereof |
| CN106587714B (en) * | 2016-12-08 | 2019-08-20 | 江苏苏博特新材料股份有限公司 | A kind of concrete anticracking impervious agent and preparation method thereof |
| CN107539984A (en) * | 2017-10-19 | 2018-01-05 | 苏州方卓材料科技有限公司 | The preparation method of graphite material |
| CN110395951A (en) * | 2018-04-25 | 2019-11-01 | 陕西燕园众欣石墨烯科技有限公司 | A kind of graphene concrete composite material of chloride-penetration resistance and preparation method thereof |
| CN109179386B (en) * | 2018-10-15 | 2020-06-02 | 陕西科技大学 | Low-degree graphene oxide nanosheet layer powder and preparation method and application thereof |
| CN111138150A (en) * | 2020-01-09 | 2020-05-12 | 新疆宏宇志祥工程咨询有限公司 | Preparation method of graphene oxide/carbon nanotube high-strength building concrete |
| CN111170699A (en) * | 2020-02-17 | 2020-05-19 | 佛山高途新材料科技有限公司 | Environment-friendly graphene oxide concrete and preparation method thereof |
| CN111377694A (en) * | 2020-05-11 | 2020-07-07 | 西安建筑科技大学 | Graphene oxide modified raw soil-based material and nano-modification method thereof |
| CN113248206B (en) * | 2021-05-31 | 2022-05-27 | 扬州工业职业技术学院 | Cement-based polyurethane composite insulation board and preparation method thereof |
| CN114230222A (en) * | 2021-11-16 | 2022-03-25 | 广州盛门新材料科技有限公司 | Polycarboxylate superplasticizer graphene additive and preparation method thereof |
| CN114315380B (en) * | 2022-01-11 | 2023-01-06 | 湖南省博鼎建材有限公司 | Green environment-friendly chromium-removing ceramic water reducing agent |
| CN117819864A (en) * | 2024-03-04 | 2024-04-05 | 四川蜀道建筑科技有限公司 | Polycarboxylic acid high-performance water reducer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093519A (en) * | 2010-12-06 | 2011-06-15 | 江苏汇迪建材有限公司 | Preparation method of mud-resistant type polycarboxylate superplasticizer |
| CN102604005A (en) * | 2012-01-13 | 2012-07-25 | 陕西科技大学 | Preparation method of strengthening and toughening polycarboxylate water reducing agent |
-
2013
- 2013-05-22 CN CN201310192111.2A patent/CN103241983B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093519A (en) * | 2010-12-06 | 2011-06-15 | 江苏汇迪建材有限公司 | Preparation method of mud-resistant type polycarboxylate superplasticizer |
| CN102604005A (en) * | 2012-01-13 | 2012-07-25 | 陕西科技大学 | Preparation method of strengthening and toughening polycarboxylate water reducing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103241983A (en) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103241983B (en) | Preparation method of graphene oxide modified polycarboxylic acid type water-reducer | |
| CN102604005B (en) | Preparation method of strengthening and toughening polycarboxylate water reducing agent | |
| CN104401980B (en) | Fe2o3-SnO2the hydrothermal preparing process of/Graphene tri compound nano material | |
| CN103435288A (en) | Novel grinding enhancer and preparation and application thereof | |
| CN105731933A (en) | Preparation method of graphene oxide/high-strength concrete composite material | |
| CN103951916B (en) | Polyvinylidene difluoride (PVDF) composite wave-suction material that a kind of RGO/ ferric oxide is filled and preparation method thereof | |
| CN102701221B (en) | Method for preparing nano white carbon black from coal gangue | |
| CN105836804B (en) | A kind of graded structure carbon intercalation MoS2@rGO preparation method | |
| CN109161971A (en) | A method of calcium sulfate crystal whiskers are prepared by titanium gypsum | |
| CN102503266B (en) | Light-weight heat-preservation wall body material mixed with iron tailings at large proportion and preparation method thereof | |
| CN103072980A (en) | Method for quickly preparing graphene sheets | |
| CN102390841B (en) | Preparation method of loose sericite powder | |
| CN103693886A (en) | Slag compound activating grinding aid and preparation method thereof | |
| CN100450957C (en) | Method of producing naphthalene series water reducing agent by refined naphthalene residual oil fraction | |
| CN107892511A (en) | A kind of abrasion-resistant ground curing agent | |
| CN102173632B (en) | Composite plastic-retaining grinding aid for cement and use method | |
| CN104072052A (en) | Nanometer SiO2 strengthening styrene-acrylic emulsion modified mortar | |
| CN102092979B (en) | Sulfamate water-reducing agent and preparation method thereof | |
| CN109231276A (en) | Sulfamic acid restores potassium permanganate and prepares α-MnO2The method and application of nano wire | |
| CN102503332A (en) | Gypsum core model material | |
| Qi et al. | Effect of sodium gluconate on molecular conformation of polycarboxylate superplasticizer studied by the molecular dynamics simulation | |
| CN104016651A (en) | Manufacturing method for producing gypsum hollow building block from hemihydrate phosphogypsum waste slag | |
| CN103979851B (en) | A kind of Modification of kaolin concrete and preparation method thereof | |
| CN103043940B (en) | Thickening powder for preparing dry-mixed plastering mortar | |
| CN101624517B (en) | Ferrimanganic lignosulfonate diluent agent for drilling fluid and preparation process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171120 Address after: No. 9, two street, Liang Ling Road, LIANG Qing District, Nanning, the Guangxi Zhuang Autonomous Region Patentee after: Guangxi Koda Building Materials Chemical Co.,Ltd. Address before: Qingxiu District Dong Ge road Nanning 530000 the Guangxi Zhuang Autonomous Region No. 29-1 and No. 1 Building No. 2512, Central Park Patentee before: Nanning Guangxi new friend Intellectual Property Agency Co.,Ltd. Effective date of registration: 20171120 Address after: Qingxiu District Dong Ge road Nanning 530000 the Guangxi Zhuang Autonomous Region No. 29-1 and No. 1 Building No. 2512, Central Park Patentee after: Nanning Guangxi new friend Intellectual Property Agency Co.,Ltd. Address before: 710021 Shaanxi city of Xi'an province Weiyang University City Patentee before: SHAANXI University OF SCIENCE & TECHNOLOGY |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 9, Liangling Second Street, Nanning District, China (Guangxi) Pilot Free Trade Zone, Nanning, Guangxi Zhuang Autonomous Region 530219 Patentee after: Guangxi Keda New Material Group Co.,Ltd. Address before: 530000 No.9, 2nd Street, Liangling Road, Liangqing District, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: Guangxi Koda Building Materials Chemical Co.,Ltd. |