CN102617406A - Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent - Google Patents
Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent Download PDFInfo
- Publication number
- CN102617406A CN102617406A CN2012100629137A CN201210062913A CN102617406A CN 102617406 A CN102617406 A CN 102617406A CN 2012100629137 A CN2012100629137 A CN 2012100629137A CN 201210062913 A CN201210062913 A CN 201210062913A CN 102617406 A CN102617406 A CN 102617406A
- Authority
- CN
- China
- Prior art keywords
- sodium
- mixture
- agent
- chloride
- active oxygen
- 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
Landscapes
- Cosmetics (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention belongs to the technical field of a peroxide stabilizing agent and particularly relates to a stabilizing agent in a urea peroxide storage process and a preparation method of the stabilizing agent. The stabilizing agent in the urea peroxide storage process provided by the invention comprises the following material ingredients in parts by weight: 5 to 20 parts of water absorption agents, 5 to 15 parts of flow aids, 5 to 20 parts of heat resistance agents and 40 to 80 parts of solid active oxygen stabilizing agents, wherein the water absorption agents are one kind of materials of magnesium chloride, calcium chloride or sodium chloride or a mixture of the magnesium chloride, calcium chloride and sodium chloride, the flow aids are one kind of materials of magnesium carbonate, light magnesium carbonate, potassium stearate, microcrystalline cellulose, superfine silica powder or tricalcium phosphate or a mixture of magnesium carbonate, light magnesium carbonate, potassium stearate, microcrystalline cellulose, superfine silica powder and tricalcium phosphate, the heat resistance agents are one kind of materials of potassium sulfate, potassium chloride or potassium nitrate or a mixture of potassium sulfate, potassium chloride and potassium nitrate, and the solid active oxygen stabilizing agents are one kind of materials of sodium tripolyphosphate, sodium fluoride, sodium borate and sodium silicate or a mixture of sodium tripolyphosphate, sodium fluoride, sodium borate and sodium silicate. Products provided by the invention have a long quality guarantee period, the bag expansion is avoided, the agglomeration is avoided, the in-site use is convenient, the product flowability is good, and the application range is wide.
Description
Technical field
The invention belongs to the peroxide stabiliser technical field, be specifically related to a kind of carbamide peroxide and deposit stablizer in the process and preparation method thereof.
Background technology
Carbamide peroxide has another name called Urea Peroxide, Carbamaid peroxide, percarbamide etc., is white powder, sheet or granular crystal, and is nonpoisonous and tasteless, and it is to be obtained by ydrogen peroxide 50 and urea reaction, and is soluble in water, also dissolves in ether, acetone, glycerine equal solvent.Carbamide peroxide is a kind of novel fine chemical product, also is a kind of efficient, safety, solid disinfecting agent easy to use, oxygenant and SYNTHETIC OPTICAL WHITNER.
Carbamide peroxide is of wide application, and in medicine and pharmaceutical industry, carbamide peroxide can be used as a kind of efficient, safe, solid disinfecting agent, also used water solution easily.Have relatively with ydrogen peroxide 50, Peracetic Acid that obvious sterilization power is strong, fungicidal spectrum is wide, working concentration is low, does not stay advantages such as residual hazard, also can suppress bacterium and mould-growth, and is residual non-stimulated.In cancer therapy, be used for anti-liver ascites etc.; In the day chemical industry; Carbamide peroxide can be used as SYNTHETIC OPTICAL WHITNER, straighteners, the hair-waving of people and animal hair, the neutralizing agent of hair dyeing, after particularly in toothpaste, adding, can play the effect that general toothpaste does not have; Can reduce dental plaque and bacterium; Reduce periodontal and carious tooth, can make the dental enamel hardening simultaneously, carious tooth is produced very strong restraining effect.In addition, carbamide peroxide can be used as SYNTHETIC OPTICAL WHITNER and is applied to neutral detergent; In agricultural and aquaculture, the first aid agent when carbamide peroxide can be used for fish pond oxygenation agent, sterilizing agent and turns over pool anoxic in culture fishery also can be made little poultry feed sterilization oxygenate, as the oxygen enrichment ripener of fruit, vegetables; In the weaving paper industry, carbamide peroxide can be used for the SYNTHETIC OPTICAL WHITNER of cotton, wool, Zantrel, flax fiber, and the softening agent of tynex, static inhibitor and discoloring agent also are used for paper-making industry and make SYNTHETIC OPTICAL WHITNER, ore floatation modifying agent etc.
Problems such as but carbamide peroxide is unstable in depositing process, and the bag that often occurs rising, caking, effective constituent descend, the quality guaranteed period is short directly influence the application of product.
Summary of the invention
The present invention is directed to shortcoming of the prior art provides a kind of carbamide peroxide to deposit stablizer in the process and preparation method thereof, and it can make, and the carbamide peroxide shelf life of products is long, the bag that do not rise, do not lump, on-the-spot easy to use etc.
A kind of carbamide peroxide of the present invention is deposited the stablizer in the process, and it comprises following material component by weight:
Water-retaining agent 5～20, glidant 5～15, antiheat agent 5～20, solid active oxygen stabilizer 40～80.
Said water-retaining agent is a kind of or its mixture in magnesium chloride, calcium chloride or the sodium-chlor.
Said glidant is a kind of or its mixture in magnesiumcarbonate, Magnesium Carbonate Light 41-45, potassium stearate, Microcrystalline Cellulose, micropowder silica gel or the tricalcium phosphate.
Said antiheat agent is a kind of or its mixture in vitriolate of tartar, Repone K or the saltpetre.
A kind of or its mixture in said solid active oxygen stabilizer tripoly phosphate sodium STPP, Sodium Fluoride, Sodium Tetraborate, the water glass.
Preferably, described a kind of carbamide peroxide is deposited the stablizer in the process, and it comprises following material component by weight:
Water-retaining agent 8～18, glidant 7～12, antiheat agent 8～18, solid active oxygen stabilizer 50～70.
Preferably, described a kind of carbamide peroxide is deposited the stablizer in the process, and it comprises following material component by weight:
Magnesium chloride 15, magnesiumcarbonate 10, vitriolate of tartar 15, tripoly phosphate sodium STPP 60.
A kind of carbamide peroxide is deposited the preparation method of the stablizer in the process, and it may further comprise the steps:
Take by weighing each material by formula ratio, then water-retaining agent, glidant, antiheat agent, solid active oxygen stabilizer are added in the powder blenders together, mix, packing promptly obtains product of the present invention.
Preferably, described a kind of carbamide peroxide is deposited the preparation method of the stablizer in the process, and used each material component is a pulvis, and the order number of said pulvis is 100～150, and its water cut is less than 0.3%.
Carbamide peroxide is a solid disinfecting agent senior, safe and easy to use, and not only fungicidal spectrum is wide, sterilization is strong, working concentration is low for it, disinfecting time is short, and residual toxicity is not ideal first-aid oxygen supply source yet.Textile industry is in bleaching; Prepare color bleaching liquor, make oxidative bleaching agent and the neutralizing agent in the agent for permanent hair waving in the hair dye on the daily-use chemical industry, also make the SYNTHETIC OPTICAL WHITNER of tooth; Add the objectionable impuritiess such as CO that produce in the time of to eliminate smoking in the tobacco; Can be used as the good auxiliary agent of high-grade washing powder, is the modifying agent of good soil property on the agricultural, can be used as fish pond oxygenation, sterilization and anoxic first aid etc. in the breed.Problems such as but carbamide peroxide is unstable in depositing process, and the bag that often occurs rising, caking, effective constituent descend, the quality guaranteed period is short, the appearance of these problems is because do not add the active oxygen stablizer in the carbamide peroxide product; Cause active oxygen to overflow, produce moisture, moisture causes the vicious cycle that effective constituent descends, active oxygen reduces again; Finally make the carbamide peroxide product; Effective constituent reduces greatly, and the product caking can not be used well.And temperature also is the factor that carbamide peroxide product active oxygen reduces.
The present invention joins the solid active oxygen stabilizer in the carbamide peroxide product, can effectively control the minimizing of active oxygen; The adding of water-retaining agent can be with the moisture absorption of reaction, and blocking activity oxygen reduces; The adding of glidant makes the carbamide peroxide product loose, and is mobile strong, do not lump; The adding of antiheat agent has relaxed the influence of temperature to the carbamide peroxide product stability.
Join when the present invention uses in the carbamide peroxide, the add-on amount is 0.5%～2.5%, and after the adding, mixing gets final product.
The carbamide peroxide of product of the present invention is compared with the carbamide peroxide that does not add stablizer has following significant advantage:
(1) shelf life of products is long, and effective constituent descends slow.
(2) product do not rise bag, do not lump, on-the-spot easy to use.
(3) good product mobility, applied widely.
Embodiment
Through specific embodiment the present invention is further described below:
A kind of carbamide peroxide of the present invention is deposited the stablizer in the process, and it comprises following material component by weight: water-retaining agent 5～20, glidant 5～15, antiheat agent 5～20, solid active oxygen stabilizer 40～80.
Above-mentioned carbamide peroxide is deposited the stablizer in the process, and said water-retaining agent is a kind of or its mixture in magnesium chloride, calcium chloride, the sodium-chlor; Said glidant is a kind of or its mixture in magnesiumcarbonate, Magnesium Carbonate Light 41-45, potassium stearate, Microcrystalline Cellulose, micropowder silica gel, the tricalcium phosphate; Said antiheat agent is a kind of or its mixture in vitriolate of tartar, Repone K, the saltpetre; A kind of or its mixture in said solid active oxygen stabilizer tripoly phosphate sodium STPP, Sodium Fluoride, Sodium Tetraborate, the water glass.
Preferably, said carbamide peroxide is deposited the stablizer in the process, and it comprises following material component by weight: water-retaining agent 8～18, glidant 7～12, antiheat agent 8～18, solid active oxygen stabilizer 50～70.
Preferably, said carbamide peroxide is deposited the stablizer in the process, and it comprises following material component by weight: magnesium chloride 15, magnesiumcarbonate 10, vitriolate of tartar 15, tripoly phosphate sodium STPP 60.
Said carbamide peroxide is deposited the preparation method of the stablizer in the process; Take by weighing each material by formula ratio; Then water-retaining agent, glidant, antiheat agent, solid active oxygen stabilizer are added in the powder blenders together, mix, packing promptly obtains product of the present invention.The order number of used each material component pulvis is 100～150, and water cut is less than 0.3%.
Join when the present invention uses in the carbamide peroxide, the add-on amount is 0.5%～2.5%, and after the adding, mixing gets final product.
Embodiment 1
Take by weighing magnesium chloride 15kg, magnesiumcarbonate 10kg, vitriolate of tartar 15kg, tripoly phosphate sodium STPP 60kg, add together in the mixing machine, mixing, packing promptly obtains product of the present invention.
Embodiment 2
Take by weighing calcium chloride 8kg, Magnesium Carbonate Light 41-45 7kg, Repone K 8kg, Sodium Fluoride 50kg, add together in the mixing machine, mixing, packing promptly obtains product of the present invention.
Embodiment 3
Take by weighing sodium-chlor 18kg, tricalcium phosphate 12kg, saltpetre 18kg, Sodium Tetraborate 70kg, add together in the mixing machine, mixing, packing promptly obtains product of the present invention.
Embodiment 4
Take by weighing magnesium chloride 6kg, Microcrystalline Cellulose 5kg, vitriolate of tartar 5kg, tripoly phosphate sodium STPP 40kg, add together in the mixing machine, mixing, packing promptly obtains product of the present invention.
Embodiment 5
Take by weighing calcium chloride 20kg, micropowder silica gel 15kg, Repone K 19kg, water glass 80kg, add together in the mixing machine, mixing, packing promptly obtains product of the present invention.
Embodiment 6
Take by weighing sodium-chlor 16kg, potassium stearate 8kg, saltpetre 13kg, tripoly phosphate sodium STPP 55kg, add together in the mixing machine, mixing, packing promptly obtains product of the present invention.
Embodiment 7
Take by weighing calcium chloride 10kg, Magnesium Carbonate Light 41-45 13kg, vitriolate of tartar 10kg, tripoly phosphate sodium STPP 45kg, add together in the mixing machine, mixing, packing promptly obtains product of the present invention.
Need explanatorily be, protection scope of the present invention be not limited to the embodiment of foregoing description, and technical scheme of the present invention can be carried out the allotment of various ratios as required, with the various conversion of the present invention equivalence all among protection scope of the present invention.
Claims (5)
1. a carbamide peroxide is deposited the stablizer in the process, it is characterized in that it comprises following material component by weight:
Water-retaining agent 5～20, glidant 5～15, antiheat agent 5～20, solid active oxygen stabilizer 40～80;
Said water-retaining agent is a kind of or its mixture in magnesium chloride, calcium chloride or the sodium-chlor;
Said glidant is a kind of or its mixture in magnesiumcarbonate, Magnesium Carbonate Light 41-45, potassium stearate, Microcrystalline Cellulose, micropowder silica gel or the tricalcium phosphate;
Said antiheat agent is a kind of or its mixture in vitriolate of tartar, Repone K or the saltpetre;
A kind of or its mixture in said solid active oxygen stabilizer tripoly phosphate sodium STPP, Sodium Fluoride, Sodium Tetraborate, the water glass.
2. deposit the stablizer in the process like claims 1 described a kind of carbamide peroxide, it is characterized in that it comprises following material component by weight:
Water-retaining agent 8～18, glidant 7～12, antiheat agent 8～18, solid active oxygen stabilizer 50～70.
3. deposit the stablizer in the process like claims 1 described a kind of carbamide peroxide, it is characterized in that it comprises following material component by weight:
Magnesium chloride 15, magnesiumcarbonate 10, vitriolate of tartar 15, tripoly phosphate sodium STPP 60.
4. deposit the preparation method of the stablizer in the process like claims 1 to 3 described a kind of carbamide peroxide, it is characterized in that it may further comprise the steps:
Take by weighing each material by formula ratio, then water-retaining agent, glidant, antiheat agent, solid active oxygen stabilizer are added in the powder blenders together, mix, packing promptly obtains product of the present invention.
5. deposit the preparation method of the stablizer in the process like claims 4 described a kind of carbamide peroxides, it is characterized in that:
Used each material component is a pulvis, and the order number of said pulvis is 100～150, and its water cut is less than 0.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210062913 CN102617406B (en) | 2012-03-12 | 2012-03-12 | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210062913 CN102617406B (en) | 2012-03-12 | 2012-03-12 | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102617406A true CN102617406A (en) | 2012-08-01 |
| CN102617406B CN102617406B (en) | 2013-09-04 |
Family
ID=46557673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210062913 Active CN102617406B (en) | 2012-03-12 | 2012-03-12 | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102617406B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104431228A (en) * | 2014-11-19 | 2015-03-25 | 广东济公保健食品有限公司 | Anti-caking agent composition, bergamot fruit flavor candies and preparation method of bergamot fruit flavor candies |
| CN104529831A (en) * | 2014-12-18 | 2015-04-22 | 西南化工研究设计院有限公司 | Preparation method of urea peroxide with high active oxygen content, high stability and high anti-moisture ability |
| CN110453490A (en) * | 2019-08-13 | 2019-11-15 | 杭州昕鸿布艺有限公司 | A kind of wool/ramie blending yarn urea peroxide bleaching technique |
| CN112522705A (en) * | 2020-11-09 | 2021-03-19 | Tcl华星光电技术有限公司 | Etchant for copper-molybdenum film and etching method of copper-molybdenum film |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU910609A1 (en) * | 1980-06-06 | 1982-03-07 | Уральский филиал Всесоюзного научно-исследовательского и проектного института химической промышленности | Process for producing urea monoperoxyhydrate |
| JPS58167557A (en) * | 1982-03-30 | 1983-10-03 | Nippon Peroxide Co Ltd | Preparation of adduct of urea with hydrogen peroxide |
| CN1418871A (en) * | 2002-11-28 | 2003-05-21 | 陶华西 | Process for preparing peroxide urea |
| CN1915972A (en) * | 2006-08-07 | 2007-02-21 | 浙江工业大学 | Method for preparing peroxidating urea |
| CN102206174A (en) * | 2011-04-08 | 2011-10-05 | 安徽省黄淮兽药有限公司 | Urea hydrogen peroxide disinfectant and preparation method thereof |
-
2012
- 2012-03-12 CN CN 201210062913 patent/CN102617406B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU910609A1 (en) * | 1980-06-06 | 1982-03-07 | Уральский филиал Всесоюзного научно-исследовательского и проектного института химической промышленности | Process for producing urea monoperoxyhydrate |
| JPS58167557A (en) * | 1982-03-30 | 1983-10-03 | Nippon Peroxide Co Ltd | Preparation of adduct of urea with hydrogen peroxide |
| CN1418871A (en) * | 2002-11-28 | 2003-05-21 | 陶华西 | Process for preparing peroxide urea |
| CN1915972A (en) * | 2006-08-07 | 2007-02-21 | 浙江工业大学 | Method for preparing peroxidating urea |
| CN102206174A (en) * | 2011-04-08 | 2011-10-05 | 安徽省黄淮兽药有限公司 | Urea hydrogen peroxide disinfectant and preparation method thereof |
Non-Patent Citations (12)
| Title |
|---|
| 俞马宏等: "过氧化尿素的制备及其热稳定性研究", 《南京理工大学学报》, vol. 29, no. 1, 28 February 2005 (2005-02-28), pages 59 - 61 * |
| 凌绍明: "微波辐射快速合成过氧化尿素", 《化学世界》, no. 11, 31 December 2006 (2006-12-31), pages 676 - 678 * |
| 孙晓然等: "过氧化氢脲制备新工艺", 《河北理工学院学报》, vol. 23, no. 1, 28 February 2001 (2001-02-28), pages 59 - 61 * |
| 李国庭等: "过碳酸酰胺的制备", 《饲料工业》, vol. 25, no. 8, 31 December 2004 (2004-12-31), pages 13 - 14 * |
| 李小云等: "过氧化尿素稳定性的研究", 《河北师范大学学报(自然科学版)》, vol. 22, no. 1, 31 March 1998 (1998-03-31), pages 92 - 93 * |
| 欧阳贻德等: "过氧化尿素的制备及其稳定性的研究", 《精细石油化工进展》, vol. 3, no. 8, 31 August 2002 (2002-08-31), pages 34 - 36 * |
| 汤秀华等: "过氧化尿素的合成及其稳定性研究", 《应用化工》, vol. 38, no. 2, 28 February 2009 (2009-02-28) * |
| 王安奇等: "稳定、高活性氧含量的过氧化尿素的制备、应用及发展前景", 《辽宁化工》, vol. 30, no. 9, 30 September 2001 (2001-09-30), pages 414 - 416 * |
| 王敏等: "过碳酸酰胺的合成研究", 《河北化工》, no. 1, 31 December 1998 (1998-12-31), pages 12 - 13 * |
| 王曼: "过氧化尿素的合成及其稳定性研究", 《山西化工》, vol. 27, no. 1, 28 February 2007 (2007-02-28), pages 12 - 14 * |
| 王燕等: "几种物质对过氧化尿素稳定性能影响的研究", 《日用化学工业》, vol. 37, no. 3, 30 June 2007 (2007-06-30), pages 208 - 210 * |
| 谭淑珍等: "过氧化尿素的合成研究", 《化学世界》, no. 12, 31 December 2004 (2004-12-31), pages 644 - 646 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104431228A (en) * | 2014-11-19 | 2015-03-25 | 广东济公保健食品有限公司 | Anti-caking agent composition, bergamot fruit flavor candies and preparation method of bergamot fruit flavor candies |
| CN104431228B (en) * | 2014-11-19 | 2017-10-17 | 广东济公保健食品有限公司 | Anticaking agent composition, Buddha's hand fruity sugar and preparation method thereof |
| CN104529831A (en) * | 2014-12-18 | 2015-04-22 | 西南化工研究设计院有限公司 | Preparation method of urea peroxide with high active oxygen content, high stability and high anti-moisture ability |
| CN110453490A (en) * | 2019-08-13 | 2019-11-15 | 杭州昕鸿布艺有限公司 | A kind of wool/ramie blending yarn urea peroxide bleaching technique |
| CN112522705A (en) * | 2020-11-09 | 2021-03-19 | Tcl华星光电技术有限公司 | Etchant for copper-molybdenum film and etching method of copper-molybdenum film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102617406B (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102626104B (en) | Stabilized chlorine dioxide disinfection solution and preparation method thereof | |
| CN102617406B (en) | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent | |
| CN110150315B (en) | Solid high-purity chlorine dioxide releasing agent | |
| CN106305715A (en) | Sodium dichloro isocyanurate disinfection tablet and preparation method thereof | |
| CN107484771A (en) | A kind of 84 thimerosals and preparation method thereof | |
| CN110655173A (en) | Oxidant for aquaculture and preparation method thereof | |
| US6197215B1 (en) | Composition for generating chlorine dioxide | |
| CN104174269B (en) | A kind of preparation method of slow released ClO 2 powder | |
| CN107868702A (en) | A kind of degerming fragrant liquid detergent and preparation method thereof | |
| CN109771367A (en) | A kind of EM bacterium shampoo and its production method | |
| CN105010389B (en) | A kind of slow released ClO 2 pulvis and preparation method thereof | |
| CN104189938A (en) | Sustained-release chlorine dioxide air purifying agent | |
| CN102010262B (en) | Foliage fertilizer for preventing and controlling plant diseases and preparation method thereof | |
| CN111771909A (en) | Disinfecting composition and preparation method thereof | |
| CN101411334A (en) | A kind of production method of disinfection agent of chlorine dioxide | |
| CN102100237A (en) | Composite disinfectant and preparation method | |
| CN104222150A (en) | Edible mushroom sterilizing and disinfecting agent | |
| JPS63246304A (en) | Composition for generating chlorine dioxide gas | |
| CN102613240B (en) | Agricultural bactericidal agent and preparation method thereof | |
| CN1556046A (en) | Synergism type chlorine dioxide bactericide and its manufacturing method and use in aquatic culture | |
| CN101595891B (en) | Chlorine dioxide composition with selective antioxidation | |
| CN202766443U (en) | Novel Bromo-3-chloro-5,5-dimethylhydantoin (BCDMH) powder producing device | |
| CN102948426B (en) | Novel food safety grade disinfection solution and preparation method thereof | |
| CN1470507A (en) | High-activity stable peroxide carbamid and its preparing method | |
| CN1934950A (en) | Solid-state chloride dioxide sterilizer and its use |
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 | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160122 Address after: 052260 Jinzhou, Shanxi Province, the total West Road, Hebei Patentee after: Lvyuan Technology Development Co., Ltd., Shijiazhuang University of Sicence and Technology Address before: 050018 Yuhua East Road, Hebei, China, No. 70, No. Patentee before: Hebei University of Science and Technology |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 052260 Jinzhou, Shanxi Province, the total West Road, Hebei Patentee after: Shijiazhuang Wei Wei Biotechnology Co., Ltd. Address before: 052260 Jinzhou, Shanxi Province, the total West Road, Hebei Patentee before: Lvyuan Technology Development Co., Ltd., Shijiazhuang University of Sicence and Technology |