CN102702169B - Method for preparing light stabilizer 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone - Google Patents
Method for preparing light stabilizer 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone Download PDFInfo
- Publication number
- CN102702169B CN102702169B CN 201210202394 CN201210202394A CN102702169B CN 102702169 B CN102702169 B CN 102702169B CN 201210202394 CN201210202394 CN 201210202394 CN 201210202394 A CN201210202394 A CN 201210202394A CN 102702169 B CN102702169 B CN 102702169B
- Authority
- CN
- China
- Prior art keywords
- dodecyl
- pentamethyl
- piperidyl
- pyrroles
- photostabilizer
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title abstract description 11
- 239000004611 light stabiliser Substances 0.000 title abstract description 3
- -1 1,2,2,6,6-pentamethyl piperidyl amine Chemical class 0.000 claims abstract description 21
- 239000002904 solvent Substances 0.000 claims abstract description 19
- YAXXOCZAXKLLCV-UHFFFAOYSA-N 3-dodecyloxolane-2,5-dione Chemical compound CCCCCCCCCCCCC1CC(=O)OC1=O YAXXOCZAXKLLCV-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000010992 reflux Methods 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 10
- 238000004807 desolvation Methods 0.000 claims description 8
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 7
- 229940010552 ammonium molybdate Drugs 0.000 claims description 7
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 7
- 239000011609 ammonium molybdate Substances 0.000 claims description 7
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000005576 amination reaction Methods 0.000 claims 3
- 238000001914 filtration Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 230000035484 reaction time Effects 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002877 acrylic styrene acrylonitrile Polymers 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920000638 styrene acrylonitrile Polymers 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Abstract
The invention discloses a method for preparing a light stabilizer 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone. The method comprises the following step of: reacting 1,2,2,6,6-pentamethyl piperidyl amine and dodecyl succinic anhydride serving as raw materials in the presence of a catalyst and a solvent to obtain the 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone. The 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone is synthesized, the separation and purification processes are simple, reaction time is short, the yield of the product is over 92 percent, the purity of the product is high, energy consumption is low, environmental pollution is light, cost is low, and the method is an ideal process for implementing industrial production.
Description
Technical field
The present invention relates to a kind of photostabilizer 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-pyrroles-2, the preparation method of 5-dioxane ketone.
Background technology
3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-pyrroles-2,5-dioxane ketone is the hindered amine type light stabilizer of lower molecular weight high-efficiency low-toxicity, product is not volatile during high temperature process.Good with most industry solvent phase dissolubility, have superior polymer intermiscibility, be applicable to the polyethylene flat filament, injection moulding and rotational moulding, sheet material; Polypropylene screen, flat filament, injection moulding, polyoxymethylene, ASA, ABS, HIPS, SAN, PVC is hard, soft goods, and the goods such as PMMA and PUR are specially adapted to liquid color enriched material.It and resin have good consistency and dispersiveness.Its molecular formula is C
26H
48N
2O
2, molecular weight is 420.64, molecular structural formula:
Its outward appearance is liquid of vicidity, though 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-pyrroles-2,5-dioxane ketone has application, but the report of relevant its synthetic method is few, and we are with reference to the theory of organic synthesis, adopt dodecyl succinic anhydride and 1,2,2,6,6-pentamethyl-piperylhydrazine is raw material, and ammonium molybdate is that catalyzer has synthesized 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, experimental result shows, it is fast that the method has speed of response, and the reaction times is short, the reaction preference advantages of higher.
Summary of the invention
The objective of the invention is in order to overcome above deficiency, provide the high 3-dodecyl-1 of a kind of product yield (1,2,2,6,6-pentamethyl-piperidyl)-pyrroles-2, the preparation method of 5-dioxane ketone.
The present invention is achieved through the following technical solutions: a kind of photostabilizer 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2, the preparation method of 5-dioxane ketone, with 1,2,2,6,6-pentamethyl-piperylhydrazine, dodecyl succinic anhydride is raw material, carries out condensation reaction under the condition that catalysts and solvents exists, described 1,2,2,6,6-pentamethyl-piperylhydrazine, dodecyl succinic anhydride, the usage ratio of catalysts and solvents is 1:1.58-4.73:0.01-0.11:1.75-5.87 by mass, and temperature of reaction is 110-125 ℃, reaction times is 3-6h, and stopped reaction adds 1,2,2,6, the water that 6-pentamethyl-piperylhydrazine total mass is 2.35 times, wash, the mixed solution after the washing carries out reflux and divides water, activated carbon decolorizing, filter, desolvation namely gets photostabilizer 3-dodecyl-1 (1,2 again, 2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone.
Further improvement of the present invention is: described catalyzer is ammonium molybdate or Sodium orthomolybdate or potassium molybdate, preferred ammonium molybdate.
Further improvement of the present invention is: described solvent is sherwood oil or normal hexane or normal heptane, preferred sherwood oil.
The present invention compared with prior art has the following advantages: the present invention synthesizes 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, the separating-purifying process is simple, reaction times is short, and product yield reaches more than 92%, and product purity is higher, less energy consumption, environmental pollution is little, and cost is low, is the comparatively ideal technique that realizes suitability for industrialized production.
Embodiment:
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and following examples only are used for explaining the present invention, do not consist of the restriction to protection domain of the present invention.
The present invention shows a kind of photostabilizer 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2, the preparation method's of 5-dioxane ketone embodiment, with 1,2,2,6,6-pentamethyl-piperylhydrazine, dodecyl succinic anhydride is raw material, carries out condensation reaction under the condition that catalysts and solvents exists, described 1,2,2,6,6-pentamethyl-piperylhydrazine, dodecyl succinic anhydride, the usage ratio of catalysts and solvents is 1:1.58-4.73:0.01-0.11:1.75-5.87 by mass, and temperature of reaction is 110-125 ℃, reaction times is 3-6h, and stopped reaction adds 1,2,2,6, the water that 6-pentamethyl-piperylhydrazine total mass is 2.35 times, wash, the rear mixed solution of washing carries out reflux and divides water, activated carbon decolorizing, filter, desolvation namely gets photostabilizer 3-dodecyl-1 (1,2 again, 2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone.Catalyzer is ammonium molybdate or Sodium orthomolybdate or potassium molybdate, and the preferred ammonium molybdate of catalyzer of the present invention, solvent are sherwood oil or normal hexane or normal heptane, the preferred sherwood oil of solvent of the present invention.
Embodiment 1:
In the four-hole reaction flask of electric mixer, reflux exchanger and thermometer is housed, add successively 1,2,2,6,6-pentamethyl-piperylhydrazine 17.0g, dodecyl succinic anhydride 40.2g, catalyzer 0.4g, solvent 50g starts agitator, during 110-125 ℃ of temperature of control, control reaction times 3-8h is behind the stopped reaction, the water that adds 40g is washed, reflux is divided water, and activated carbon decolorizing filters, desolvation again, namely get photostabilizer 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, product yield reaches 92.46%.
Embodiment 2:
In the four-hole reaction flask of electric mixer, reflux exchanger and thermometer is housed, add successively 1,2,2,6,6-pentamethyl-piperylhydrazine 17.0g, dodecyl succinic anhydride 53.7g, catalyzer 0.4g, solvent 50g starts agitator, during 110-125 ℃ of temperature of control, control reaction times 3-6h is behind the stopped reaction, the water that adds 40g is washed, reflux is divided water, and activated carbon decolorizing filters, desolvation again, namely get photostabilizer 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, product yield reaches 92.83%.
Embodiment 3:
In the four-hole reaction flask of electric mixer, reflux exchanger and thermometer is housed, add successively 1,2,2,6,6-pentamethyl-piperylhydrazine 17.0g, dodecyl succinic anhydride 32.2g, catalyzer 1.0g, solvent 50g starts agitator, during 110-125 ℃ of temperature of control, control reaction times 3-6h is behind the stopped reaction, the water that adds 40g is washed, reflux is divided water, and activated carbon decolorizing filters, desolvation again, namely get photostabilizer 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, product yield reaches 92.11%.
Embodiment 4:
In the four-hole reaction flask of electric mixer, reflux exchanger and thermometer is housed, add successively 1,2,2,6,6-pentamethyl-piperylhydrazine 17.0g, dodecyl succinic anhydride 67.1g, catalyzer 0.4g, solvent 50g starts agitator, during 110-125 ℃ of temperature of control, control reaction times 3-6h is behind the stopped reaction, the water that adds 40g is washed, reflux is divided water, and activated carbon decolorizing filters, desolvation again, namely get photostabilizer 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, product yield reaches 93.09%.
Embodiment 5:
In the four-hole reaction flask of electric mixer, reflux exchanger and thermometer is housed, add successively 1,2,2,6,6-pentamethyl-piperylhydrazine 17.0g, dodecyl succinic anhydride 48.3g, catalyzer 0.6g, solvent 70g starts agitator, during 110-125 ℃ of temperature of control, control reaction times 3-6h is behind the stopped reaction, the water that adds 40g is washed, reflux is divided water, and activated carbon decolorizing filters, desolvation again, namely get photostabilizer 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, product yield reaches 92.74%.
The present invention synthesizes 3-dodecyl-1 (1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, the separating-purifying process is simple, reaction times is short, and product yield reaches more than 92%, and product purity is higher, less energy consumption, environmental pollution is little, and cost is low, is the comparatively ideal technique that realizes suitability for industrialized production.
Claims (5)
1. photostabilizer 3-dodecyl-1-(1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2, the preparation method of 5-dioxane ketone, it is characterized in that: with 1,2,2,6,6-pentamethyl-piperylhydrazine, dodecyl succinic anhydride is raw material, carries out amination reaction and prepare 3-dodecyl-1-(1 in the presence of catalysts and solvents, 2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone, described catalyzer are ammonium molybdate or Sodium orthomolybdate or potassium molybdate, the temperature of described amination reaction is 110-125 ℃, and the time of amination reaction is 3-6h, after reaction finishes, add 1,2,2, the water that 6,6-pentamethyl-piperylhydrazine total mass is 2.35 times is washed, mixing solutions after the washing carries out reflux and divides water, decolour with gac, after the filtration, desolvation again, namely get photostabilizer 3-dodecyl-1-(1,2,2,6,6-pentamethyl-piperidyl)-and pyrroles-2,5-dioxane ketone.
2. photostabilizer 3-dodecyl-1-(1,2,2 according to claim 1,6,6-pentamethyl-piperidyl)-and pyrroles-2, the preparation method of 5-dioxane ketone, it is characterized in that: 1,2,2,6, the usage ratio of 6-pentamethyl-piperylhydrazine, dodecyl succinic anhydride, catalyzer, solvent is by mass: 1,2,2,6,6-pentamethyl-piperylhydrazine: dodecyl succinic anhydride: catalyzer: solvent=1:1.58-4.73:0.01-0.11:1.75-5.87.
3. photostabilizer 3-dodecyl-1-according to claim 1 and 2 (1,2,2,6,6-pentamethyl-piperidyl)-pyrroles-2, the preparation method of 5-dioxane ketone is characterized in that: described catalyzer is ammonium molybdate.
4. photostabilizer 3-dodecyl-1-according to claim 1 and 2 (1,2,2,6,6-pentamethyl-piperidyl)-pyrroles-2, the preparation method of 5-dioxane ketone is characterized in that: described solvent is sherwood oil or normal hexane or normal heptane.
5. photostabilizer 3-dodecyl-1-according to claim 4 (1,2,2,6,6-pentamethyl-piperidyl)-pyrroles-2, the preparation method of 5-dioxane ketone is characterized in that: described solvent is sherwood oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210202394 CN102702169B (en) | 2012-06-19 | 2012-06-19 | Method for preparing light stabilizer 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210202394 CN102702169B (en) | 2012-06-19 | 2012-06-19 | Method for preparing light stabilizer 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102702169A CN102702169A (en) | 2012-10-03 |
| CN102702169B true CN102702169B (en) | 2013-10-16 |
Family
ID=46895275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210202394 Expired - Fee Related CN102702169B (en) | 2012-06-19 | 2012-06-19 | Method for preparing light stabilizer 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102702169B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3006272A1 (en) * | 1980-02-20 | 1981-08-27 | Chemische Werke Hüls AG, 4370 Marl | CYCLIC IMIDES, THEIR PRODUCTION AND USE |
| US4619956A (en) * | 1985-05-03 | 1986-10-28 | American Cyanamid Co. | Stabilization of high solids coatings with synergistic combinations |
| JPH0717759B2 (en) * | 1986-07-28 | 1995-03-01 | 旭電化工業株式会社 | Propylene resin molded product |
| WO2007012574A1 (en) * | 2005-07-25 | 2007-02-01 | Basf Se | Dermocosmetic preparations |
-
2012
- 2012-06-19 CN CN 201210202394 patent/CN102702169B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102702169A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101306383B (en) | Chiral organic micromolecule catalyst loaded by heteropoly acid and preparation method and use thereof | |
| CN101544595B (en) | production method of stearic acid 2,2,6,6-tetramethyl-4-piperidine ester of light stabilizer | |
| CN102702169B (en) | Method for preparing light stabilizer 3-dodecyl-1(1,2,2,6,6-pentamethyl piperidyl)-2,5-dipyrrolidone | |
| CN104072398B (en) | A kind of method of synthesizing Ezetimibe | |
| CN103539668B (en) | Process for synthesizing terephthalal diethyl dimalonate ultraviolet light absorber | |
| CN104725252A (en) | Method for preparing solvent blue 35 | |
| CN102643224B (en) | Preparation method of light stabilizer and intermediate 4-acetonyl-1,2,2,6,6-pentamethylpiperidine | |
| CN103012251B (en) | Preparation method of hindered amine light stabilizer intermediate compound 1-octoxy-2,2,6,6-tetramethyl-4-hydroxypiperidine | |
| CN105251526A (en) | Preparing method and application of core-shell material catalyst | |
| CN105037589A (en) | Carboxymethyl hemicellulose supported palladium catalyst, preparation method therefor and application thereof | |
| CN101747252A (en) | Synthetic method of R-structured Rolipram | |
| CN103193698A (en) | Preparation method of N-triacetic acid (1,2,2,6,6-pentamethyl-4-piperidyl) ester as hindered amine light stabilizer | |
| CN101544576A (en) | Method for preparing fluorenylmethyloxycarbonyl-aspartate-alpha-allyl ester | |
| CN104045579A (en) | Method for catalyzing carbonyl amination reaction of aryl halide by using graphene-loaded nano-palladium | |
| CN102659767B (en) | Preparation method for light stabilizer and intermediate 4-glycidyl-1,2,2,6,6-pentamethylpeperidine | |
| CN102731684A (en) | Preparation method of urethane molecularly imprinted polymer | |
| CN100402513C (en) | Preparation method of racemic homocitric acid lactone | |
| CN101712772B (en) | Light stabilizer and production method thereof | |
| CN102441431B (en) | Catalyst for Michael addition reaction and preparation method of nitro fatty aldehyde | |
| CN103992357A (en) | Macromolecular crosslinking agent containing polyoxometalates and preparation method and application thereof | |
| CN105541577A (en) | Method for synthesizing dihydrocarvone by use of epoxy limonene | |
| CN101768104B (en) | Method for producing light stabilizer sebacic acid (1, 2, 2, 6, 6-pentamethyl-4-piperidyl) diester | |
| CN103804165A (en) | Method for preparing light stabilizer methylene bi(2,3,4-trihydroxybenzophenone) | |
| CN111040064A (en) | Preparation method of modified macroporous styrene divinylbenzene chelating ion exchange resin | |
| CN109810011A (en) | A kind of preparation method of N- isobornyl amide |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANG RONGBO Free format text: FORMER OWNER: NANTONG HUIKANG INTERNATIONAL ENTERPRISE CO., LTD. Effective date: 20140710 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 226009 NANTONG, JIANGSU PROVINCE TO: 226600 NANTONG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140710 Address after: 226600 Haian Province, the town of grand duke in the village of Jiangsu, the group of 16, No. ten Patentee after: Jiang Rongbo Address before: 226009 No. 9, Xing Xing Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee before: Nantong Huikang International Enterprise Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: WANG YINGFENG Effective date: 20150116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150116 Address after: 226600 Haian Province, the town of grand duke in the village of Jiangsu, the group of 16, No. ten Patentee after: Jiang Rongbo Patentee after: Wang Yingfeng Address before: 226600 Haian Province, the town of grand duke in the village of Jiangsu, the group of 16, No. ten Patentee before: Jiang Rongbo |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170307 Address after: 226299 Jiangsu Development Zone, Nantong business outsourcing center, block D, floor 3 Patentee after: Nantong Huikang International Trade Co. Ltd. Address before: 226600 Haian Province, the town of grand duke in the village of Jiangsu, the group of 16, No. ten Patentee before: Jiang Rongbo Patentee before: Wang Yingfeng |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20180619 |