CN111548442A - 一种表面亲水处理剂、其制备方法和应用 - Google Patents
一种表面亲水处理剂、其制备方法和应用 Download PDFInfo
- Publication number
- CN111548442A CN111548442A CN202010387173.9A CN202010387173A CN111548442A CN 111548442 A CN111548442 A CN 111548442A CN 202010387173 A CN202010387173 A CN 202010387173A CN 111548442 A CN111548442 A CN 111548442A
- Authority
- CN
- China
- Prior art keywords
- sample
- mass
- hydrophilic treatment
- solution
- polymaleic anhydride
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000000576 coating method Methods 0.000 claims abstract description 43
- 239000011248 coating agent Substances 0.000 claims abstract description 42
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 36
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000000227 grinding Methods 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000002791 soaking Methods 0.000 claims abstract description 12
- 230000001680 brushing effect Effects 0.000 claims abstract description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 54
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims description 52
- 239000011521 glass Substances 0.000 claims description 49
- 239000000243 solution Substances 0.000 claims description 42
- 238000001035 drying Methods 0.000 claims description 34
- 239000004744 fabric Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 32
- 239000007864 aqueous solution Substances 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 24
- 238000007865 diluting Methods 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 239000003054 catalyst Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000005303 weighing Methods 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- 230000004913 activation Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 11
- 230000003301 hydrolyzing effect Effects 0.000 claims description 10
- 238000013329 compounding Methods 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000010790 dilution Methods 0.000 claims description 9
- 239000012895 dilution Substances 0.000 claims description 9
- 229920006395 saturated elastomer Polymers 0.000 claims description 9
- 239000004254 Ammonium phosphate Substances 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 8
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 8
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 8
- UMEAURNTRYCPNR-UHFFFAOYSA-N azane;iron(2+) Chemical compound N.[Fe+2] UMEAURNTRYCPNR-UHFFFAOYSA-N 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 7
- 244000137852 Petrea volubilis Species 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 7
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- MPQPXMRGNQJXGO-UHFFFAOYSA-N 2-hydroxypropane-1,2,3-tricarboxamide Chemical compound NC(=O)CC(O)(C(N)=O)CC(N)=O MPQPXMRGNQJXGO-UHFFFAOYSA-N 0.000 claims description 3
- FPFSGDXIBUDDKZ-UHFFFAOYSA-N 3-decyl-2-hydroxycyclopent-2-en-1-one Chemical compound CCCCCCCCCCC1=C(O)C(=O)CC1 FPFSGDXIBUDDKZ-UHFFFAOYSA-N 0.000 claims description 3
- PTZOLXYHGCJRHA-UHFFFAOYSA-L azanium;iron(2+);phosphate Chemical compound [NH4+].[Fe+2].[O-]P([O-])([O-])=O PTZOLXYHGCJRHA-UHFFFAOYSA-L 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 229920000914 Metallic fiber Polymers 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 8
- 239000005955 Ferric phosphate Substances 0.000 abstract description 8
- 229940032958 ferric phosphate Drugs 0.000 abstract description 8
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 abstract description 8
- 229910000399 iron(III) phosphate Inorganic materials 0.000 abstract description 8
- 230000002209 hydrophobic effect Effects 0.000 abstract description 7
- 238000009501 film coating Methods 0.000 abstract description 2
- 239000007888 film coating Substances 0.000 abstract description 2
- 230000002045 lasting effect Effects 0.000 abstract description 2
- 238000000643 oven drying Methods 0.000 abstract 1
- 238000005498 polishing Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 239000010985 leather Substances 0.000 description 7
- 239000003755 preservative agent Substances 0.000 description 6
- 230000002335 preservative effect Effects 0.000 description 6
- 238000003892 spreading Methods 0.000 description 5
- 230000007480 spreading Effects 0.000 description 5
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002657 fibrous material Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000012209 synthetic fiber Substances 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- XGGLLRJQCZROSE-UHFFFAOYSA-K ammonium iron(iii) sulfate Chemical compound [NH4+].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O XGGLLRJQCZROSE-UHFFFAOYSA-K 0.000 description 1
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical compound [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- -1 iron ammonium salt compound Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003335 steric effect Effects 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F122/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
- C08F122/04—Anhydrides, e.g. cyclic anhydrides
- C08F122/06—Maleic anhydride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/45—Phosphates containing plural metal, or metal and ammonium
- C01B25/451—Phosphates containing plural metal, or metal and ammonium containing metal and ammonium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/06—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen
- C08F4/26—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen of manganese, iron group metals or platinum group metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/28—Oxygen or compounds releasing free oxygen
- C08F4/30—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/12—Hydrolysis
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010387173.9A CN111548442B (zh) | 2020-05-09 | 2020-05-09 | 一种表面亲水处理剂、其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010387173.9A CN111548442B (zh) | 2020-05-09 | 2020-05-09 | 一种表面亲水处理剂、其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111548442A true CN111548442A (zh) | 2020-08-18 |
CN111548442B CN111548442B (zh) | 2022-12-30 |
Family
ID=71999830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010387173.9A Active CN111548442B (zh) | 2020-05-09 | 2020-05-09 | 一种表面亲水处理剂、其制备方法和应用 |
Country Status (1)
Country | Link |
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CN (1) | CN111548442B (zh) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4036588A (en) * | 1976-03-09 | 1977-07-19 | Research Corporation | Method of increasing the water absorption of cellulose-containing materials |
US4151130A (en) * | 1978-02-02 | 1979-04-24 | American Can Company | Polymer modified cellulose fibers and method of producing |
US5135677A (en) * | 1988-04-11 | 1992-08-04 | Nippon Shokubai Co., Ltd. | Process for producing acid-type maleic acid polymer and water-treating agent and detergent additive containing said polymer |
US6291594B1 (en) * | 1998-03-24 | 2001-09-18 | National Starch And Chemical Investment Holding Corporation | Textile sizes containing anhydride based graft copolymers |
US20030101518A1 (en) * | 2000-01-18 | 2003-06-05 | Nano-Tex, Llc | Hydrophilic finish for fibrous substrates |
CN1628195A (zh) * | 2002-05-01 | 2005-06-15 | 那侬纺织有限公司 | 纤维基材的亲水性整理剂 |
WO2012165494A1 (ja) * | 2011-05-31 | 2012-12-06 | 関西ペイント株式会社 | 親水性塗料組成物及び親水化処理方法 |
CN108993174A (zh) * | 2018-08-20 | 2018-12-14 | 宁波昌祺微滤膜科技有限公司 | 一种耐次氯酸钠的ePTFE亲水膜及其制备方法和应用 |
CN110790851A (zh) * | 2019-11-08 | 2020-02-14 | 山东泰和水处理科技股份有限公司 | 一种水解聚马来酸酐的合成方法 |
-
2020
- 2020-05-09 CN CN202010387173.9A patent/CN111548442B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4036588A (en) * | 1976-03-09 | 1977-07-19 | Research Corporation | Method of increasing the water absorption of cellulose-containing materials |
US4151130A (en) * | 1978-02-02 | 1979-04-24 | American Can Company | Polymer modified cellulose fibers and method of producing |
US5135677A (en) * | 1988-04-11 | 1992-08-04 | Nippon Shokubai Co., Ltd. | Process for producing acid-type maleic acid polymer and water-treating agent and detergent additive containing said polymer |
US6291594B1 (en) * | 1998-03-24 | 2001-09-18 | National Starch And Chemical Investment Holding Corporation | Textile sizes containing anhydride based graft copolymers |
US20030101518A1 (en) * | 2000-01-18 | 2003-06-05 | Nano-Tex, Llc | Hydrophilic finish for fibrous substrates |
CN1628195A (zh) * | 2002-05-01 | 2005-06-15 | 那侬纺织有限公司 | 纤维基材的亲水性整理剂 |
WO2012165494A1 (ja) * | 2011-05-31 | 2012-12-06 | 関西ペイント株式会社 | 親水性塗料組成物及び親水化処理方法 |
CN108993174A (zh) * | 2018-08-20 | 2018-12-14 | 宁波昌祺微滤膜科技有限公司 | 一种耐次氯酸钠的ePTFE亲水膜及其制备方法和应用 |
CN110790851A (zh) * | 2019-11-08 | 2020-02-14 | 山东泰和水处理科技股份有限公司 | 一种水解聚马来酸酐的合成方法 |
Non-Patent Citations (3)
Title |
---|
C MALARDIER-JUGROOT等: ""Study of the water conformation around hydrophilic and hydrophobic parts of styrene-maleic anhydride"", 《JORUNAL OF MOLECULAR STRUCTURE:THEOCHEM》 * |
李东升等: "水解聚马来酸酐合成中催化和引发体系的优选", 《化学世界》 * |
靳通收等: ""水中一步合成水解聚马来酸酐的洁净方法"", 《化学世界》 * |
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CN111548442B (zh) | 2022-12-30 |
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Effective date of registration: 20240321 Address after: 200233 room A3, floor 1-3, No. 217-225, Hongcao South Road, Xuhui District, Shanghai Patentee after: SHANGHAI JINDUO YUCHEN WATER ENVIRONMENT ENGINEERING Co.,Ltd. Country or region after: Zhong Guo Address before: Room 448, 4th floor, building 9, xingzhihui business garden, 19 Xinghuo Road, Jiangbei new district, Nanjing City, Jiangsu Province, 210043 Patentee before: Jiangsu Yunchao Environmental Protection Technology Co.,Ltd. Country or region before: Zhong Guo Patentee before: SHANGHAI JINDUO YUCHEN WATER ENVIRONMENT ENGINEERING Co.,Ltd. |