CN110052174A - A kind of preparation method of the polyacrylonitrile-radical filter membrane of high throughput bubbles - Google Patents
A kind of preparation method of the polyacrylonitrile-radical filter membrane of high throughput bubbles Download PDFInfo
- Publication number
- CN110052174A CN110052174A CN201910269763.9A CN201910269763A CN110052174A CN 110052174 A CN110052174 A CN 110052174A CN 201910269763 A CN201910269763 A CN 201910269763A CN 110052174 A CN110052174 A CN 110052174A
- Authority
- CN
- China
- Prior art keywords
- bubbles
- polyacrylonitrile
- filter membrane
- bubble
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 23
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002253 acid Substances 0.000 claims abstract description 21
- 229910000679 solder Inorganic materials 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 230000001112 coagulating effect Effects 0.000 claims abstract description 15
- 229920002521 macromolecule Polymers 0.000 claims abstract description 15
- 239000000975 dye Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000010612 desalination reaction Methods 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 239000003999 initiator Substances 0.000 claims abstract description 5
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 4
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 4
- 239000007864 aqueous solution Substances 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 22
- 239000011521 glass Substances 0.000 claims description 18
- 238000010907 mechanical stirring Methods 0.000 claims description 18
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 235000005074 zinc chloride Nutrition 0.000 claims description 9
- 239000011592 zinc chloride Substances 0.000 claims description 9
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 6
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 4
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 4
- 238000006392 deoxygenation reaction Methods 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 3
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 3
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 claims description 3
- 235000010262 sodium metabisulphite Nutrition 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- 229940079827 sodium hydrogen sulfite Drugs 0.000 claims description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 230000000977 initiatory effect Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims 1
- 235000019394 potassium persulphate Nutrition 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 150000003839 salts Chemical class 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 abstract description 3
- 238000013019 agitation Methods 0.000 abstract description 2
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract description 2
- 125000000524 functional group Chemical group 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 150000003254 radicals Chemical class 0.000 abstract description 2
- 230000004907 flux Effects 0.000 description 13
- 229920002239 polyacrylonitrile Polymers 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000001728 nano-filtration Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 230000010148 water-pollination Effects 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- SATQNYRZLIROHO-UHFFFAOYSA-N [NH4+].[Na].OS([O-])=O Chemical compound [NH4+].[Na].OS([O-])=O SATQNYRZLIROHO-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical group 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000004040 pyrrolidinones Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012966 redox initiator Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Polymerisation Methods In General (AREA)
Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910269763.9A CN110052174B (en) | 2019-04-04 | 2019-04-04 | Preparation method of high-flux bubble-containing polyacrylonitrile-based filter membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910269763.9A CN110052174B (en) | 2019-04-04 | 2019-04-04 | Preparation method of high-flux bubble-containing polyacrylonitrile-based filter membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110052174A true CN110052174A (en) | 2019-07-26 |
CN110052174B CN110052174B (en) | 2021-04-30 |
Family
ID=67318403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910269763.9A Active CN110052174B (en) | 2019-04-04 | 2019-04-04 | Preparation method of high-flux bubble-containing polyacrylonitrile-based filter membrane |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110052174B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54137064A (en) * | 1978-04-17 | 1979-10-24 | Sekisui Chem Co Ltd | Manufacture of porous membrane |
JPS63130103A (en) * | 1986-11-19 | 1988-06-02 | Toray Ind Inc | Polyacrylonitrile-base semipermeable membrane and manufacturing thereof |
CN105854641A (en) * | 2016-06-12 | 2016-08-17 | 天津工业大学 | Method for preparing narrow-hole-diameter-distribution polyacrylonitrile nano-filtration membrane |
CN105854653A (en) * | 2016-06-12 | 2016-08-17 | 天津工业大学 | Method for preparing fibroin grafted polyacrylonitrile nanofiltration membrane |
CN105854642A (en) * | 2016-06-12 | 2016-08-17 | 天津工业大学 | Preparation method of hydrophilic polyacrylonitrile nanofiltration membrane with polyhydroxy |
CN106000134A (en) * | 2016-07-08 | 2016-10-12 | 天津工业大学 | Temperature-sensitive filtering membrane with small pore size distribution and preparation method thereof |
-
2019
- 2019-04-04 CN CN201910269763.9A patent/CN110052174B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54137064A (en) * | 1978-04-17 | 1979-10-24 | Sekisui Chem Co Ltd | Manufacture of porous membrane |
JPS63130103A (en) * | 1986-11-19 | 1988-06-02 | Toray Ind Inc | Polyacrylonitrile-base semipermeable membrane and manufacturing thereof |
CN105854641A (en) * | 2016-06-12 | 2016-08-17 | 天津工业大学 | Method for preparing narrow-hole-diameter-distribution polyacrylonitrile nano-filtration membrane |
CN105854653A (en) * | 2016-06-12 | 2016-08-17 | 天津工业大学 | Method for preparing fibroin grafted polyacrylonitrile nanofiltration membrane |
CN105854642A (en) * | 2016-06-12 | 2016-08-17 | 天津工业大学 | Preparation method of hydrophilic polyacrylonitrile nanofiltration membrane with polyhydroxy |
CN106000134A (en) * | 2016-07-08 | 2016-10-12 | 天津工业大学 | Temperature-sensitive filtering membrane with small pore size distribution and preparation method thereof |
Non-Patent Citations (2)
Title |
---|
ARINDAM BANERJEE ET AL.: "Mechanical behaviour of a hydrogel fi lm with embedded voids under the tensile load", 《JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY》 * |
SUBHAJIT PATRA ET AL.: "Diffusion in and around alginate and chitosan fi lms with embedded sub-millimeter voids", 《MATERIALS SCIENCE AND ENGINEERING C》 * |
Also Published As
Publication number | Publication date |
---|---|
CN110052174B (en) | 2021-04-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4380600A (en) | Aqueous dispersion of water-soluble polymer composition | |
CN106000134B (en) | A kind of filter membrane and preparation method thereof of the narrow pore-size distribution of temperature sensitivity | |
CN104841288B (en) | One kind is used for CO2/N2Detached microgel composite membrane of gas and preparation method thereof | |
CN100347209C (en) | Inverse emulsion process of preparing amphoteric polymer | |
CN106943899B (en) | Hydrophilic polysulfone membrane and preparation method thereof | |
CN101037492A (en) | Method for preparing propylene amides copolymer with regular branch structure by inverse emulsion method | |
CN101239283B (en) | Convenient for cleaning hollow fiber membrane, preparation of the same and products produced thereby | |
CN106916330A (en) | The method of modified polyamide laminated film | |
CN109260970B (en) | Preparation method of high-strength inorganic doped calcium alginate hydrogel filtering membrane | |
CN108126528A (en) | A kind of preparation method of double-layer hollow fiber NF membrane | |
CN110052177B (en) | Preparation method of hollow microsphere reinforced high-flux polyacrylonitrile filter membrane | |
JP3248795B2 (en) | Highly concentrated aqueous emulsion of polyacrylonitrile and process for producing the same | |
CN109865501A (en) | A kind of compound membrane preparation method for organic dyestuff in Adsorption water | |
CN105854642B (en) | A kind of preparation method of the hydrophilic polypropylene nitrile NF membrane containing polyhydroxy | |
CN110052174A (en) | A kind of preparation method of the polyacrylonitrile-radical filter membrane of high throughput bubbles | |
CN105854641B (en) | A kind of preparation method of narrower bore footpath distribution polypropylene nitrile NF membrane | |
CN110605033B (en) | Preparation method of temperature-resistant hollow fiber ultrafiltration membrane, temperature-resistant hollow fiber ultrafiltration membrane and components thereof | |
CN110479121A (en) | A kind of preparation method of polyether sulfone/thermo plastic polyurethane alastic body alloy inner support hollow membrane | |
CN106621837A (en) | Hydrophilically modified porous membrane containing network crosslinked polymer and preparation method of porous membrane | |
CN105854653B (en) | A kind of preparation method of fibroin graft polypropylene nitrile NF membrane | |
US11999636B2 (en) | Method for purifying dye-containing wastewater based on porous-polymer-modified metal carbon nanotube composite membrane | |
CN102553455A (en) | Preparation method of methyl methacrylate-diethylenetriamine/polyvinylidene fluoride chelating membrane | |
CN109304101B (en) | Zwitterionic high-strength pollution-resistant forward osmosis membrane and preparation method thereof | |
CN109292941A (en) | A kind of preparation method of high grafting rate paper mill sludge base organic polymer coargulator | |
CN109012239A (en) | A kind of Organic inorganic film and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240701 Address after: Room 1109, No. 31, Nancheng Section, Guantai Road, Nancheng Street, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Pengbo Intellectual Property Services Co.,Ltd. Country or region after: China Address before: 300387 School of materials science and engineering, 399 West Pennsylvania Road, Xiqing, Tianjin Patentee before: TIANJIN POLYTECHNIC University Country or region before: China |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240703 Address after: No. 201, Door 3, 26th Floor, Building Materials City Center, No.1 Building Materials City Center Road, Haidian District, Beijing 100080 Patentee after: Liang Hui Country or region after: China Address before: Room 1109, No. 31, Nancheng Section, Guantai Road, Nancheng Street, Dongguan City, Guangdong Province, 523000 Patentee before: Dongguan Pengbo Intellectual Property Services Co.,Ltd. Country or region before: China |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240727 Address after: Room 506, Building 6, No. 97 Changping Road, Shahe Town, Changping District, Beijing 102200 Patentee after: Beijing Biyuan Intelligent Technology Co.,Ltd. Country or region after: China Address before: No. 201, Door 3, 26th Floor, Building Materials City Center, No.1 Building Materials City Center Road, Haidian District, Beijing 100080 Patentee before: Liang Hui Country or region before: China |