CN113248651B - 一种造纸助留剂及其制备方法和应用 - Google Patents
一种造纸助留剂及其制备方法和应用 Download PDFInfo
- Publication number
- CN113248651B CN113248651B CN202110781583.6A CN202110781583A CN113248651B CN 113248651 B CN113248651 B CN 113248651B CN 202110781583 A CN202110781583 A CN 202110781583A CN 113248651 B CN113248651 B CN 113248651B
- Authority
- CN
- China
- Prior art keywords
- papermaking
- ammonium chloride
- aqueous solution
- retention aid
- copolymerization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000014759 maintenance of location Effects 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 63
- 239000000843 powder Substances 0.000 claims abstract description 62
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000178 monomer Substances 0.000 claims abstract description 36
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 36
- 239000007864 aqueous solution Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000012986 modification Methods 0.000 claims abstract description 24
- 230000004048 modification Effects 0.000 claims abstract description 24
- 229920001577 copolymer Polymers 0.000 claims abstract description 22
- 239000000243 solution Substances 0.000 claims abstract description 22
- 125000002091 cationic group Chemical group 0.000 claims abstract description 21
- 235000015110 jellies Nutrition 0.000 claims abstract description 21
- 239000008274 jelly Substances 0.000 claims abstract description 21
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 claims abstract description 16
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 239000011259 mixed solution Substances 0.000 claims abstract description 14
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 239000001301 oxygen Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000012966 redox initiator Substances 0.000 claims description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 9
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 9
- 239000003999 initiator Substances 0.000 claims description 9
- 239000012986 chain transfer agent Substances 0.000 claims description 8
- 239000002738 chelating agent Substances 0.000 claims description 8
- FYRWKWGEFZTOQI-UHFFFAOYSA-N 3-prop-2-enoxy-2,2-bis(prop-2-enoxymethyl)propan-1-ol Chemical compound C=CCOCC(CO)(COCC=C)COCC=C FYRWKWGEFZTOQI-UHFFFAOYSA-N 0.000 claims description 7
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 7
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical group [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 7
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 7
- 239000004280 Sodium formate Substances 0.000 claims description 7
- AVWKSSYTZYDQFG-UHFFFAOYSA-M dimethyl-octadecyl-prop-2-enylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC=C AVWKSSYTZYDQFG-UHFFFAOYSA-M 0.000 claims description 7
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical group [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 claims description 7
- 235000019254 sodium formate Nutrition 0.000 claims description 7
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000007791 liquid phase Substances 0.000 claims description 6
- FZGFBJMPSHGTRQ-UHFFFAOYSA-M trimethyl(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCOC(=O)C=C FZGFBJMPSHGTRQ-UHFFFAOYSA-M 0.000 claims description 6
- RRHXZLALVWBDKH-UHFFFAOYSA-M trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)OCC[N+](C)(C)C RRHXZLALVWBDKH-UHFFFAOYSA-M 0.000 claims description 6
- -1 trisodium N-hydroxyethyl ethylamine triacetate Chemical compound 0.000 claims description 6
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 5
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 claims description 5
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 5
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 claims description 5
- 239000011790 ferrous sulphate Substances 0.000 claims description 5
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 5
- ACWKAVFAONSRKJ-UHFFFAOYSA-M hexadecyl-dimethyl-prop-2-enylazanium;chloride Chemical group [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC=C ACWKAVFAONSRKJ-UHFFFAOYSA-M 0.000 claims description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical group [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 5
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 5
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 5
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical group C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 5
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 claims description 4
- LXEKPEMOWBOYRF-UHFFFAOYSA-N [2-[(1-azaniumyl-1-imino-2-methylpropan-2-yl)diazenyl]-2-methylpropanimidoyl]azanium;dichloride Chemical compound Cl.Cl.NC(=N)C(C)(C)N=NC(C)(C)C(N)=N LXEKPEMOWBOYRF-UHFFFAOYSA-N 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 239000003002 pH adjusting agent Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 24
- 229920002401 polyacrylamide Polymers 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 15
- 229920000642 polymer Polymers 0.000 description 10
- 239000000047 product Substances 0.000 description 8
- 125000003368 amide group Chemical group 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000003242 quaternary ammonium salts Chemical group 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 125000001165 hydrophobic group Chemical group 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- 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
- C08F8/18—Introducing halogen atoms or halogen-containing groups
- C08F8/20—Halogenation
- C08F8/22—Halogenation by reaction with free halogens
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
- D21H17/45—Nitrogen-containing groups
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Paper (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110781583.6A CN113248651B (zh) | 2021-07-12 | 2021-07-12 | 一种造纸助留剂及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110781583.6A CN113248651B (zh) | 2021-07-12 | 2021-07-12 | 一种造纸助留剂及其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113248651A CN113248651A (zh) | 2021-08-13 |
CN113248651B true CN113248651B (zh) | 2021-10-01 |
Family
ID=77191101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110781583.6A Active CN113248651B (zh) | 2021-07-12 | 2021-07-12 | 一种造纸助留剂及其制备方法和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113248651B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114773543B (zh) * | 2022-06-17 | 2022-09-02 | 山东诺尔生物科技有限公司 | 一种改性聚丙烯酰胺造纸助留助滤剂及其制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2779159B1 (fr) * | 1998-05-28 | 2000-08-11 | Snf Sa | Procede de floculation pour la fabrication d'une feuille de papier, carton ou analogue, emulsions reticulees comme nouveaux agents floculants de cette preparation, et les articles ainsi obtenus |
CN100516100C (zh) * | 2006-05-23 | 2009-07-22 | 青岛科技大学 | 阳离子丙烯酰胺共聚物水包水乳液及其制备方法 |
FR2929963B1 (fr) * | 2008-04-10 | 2010-04-23 | Snf Sas | Procede de fabrication de papier et carton |
-
2021
- 2021-07-12 CN CN202110781583.6A patent/CN113248651B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN113248651A (zh) | 2021-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101507190B1 (ko) | 제지에 있어서 첨가제로서의 개질된 비닐아민-함유 중합체 | |
KR101097030B1 (ko) | 제지시 피치와 점착물의 침착을 조절하기 위한 수용성의 가교결합된 양이온성 중합체의 용도 | |
AU2005304045B2 (en) | Papermaking process | |
JPH0676462B2 (ja) | ビニルアミン共重合体およびその製法 | |
CN108774294B (zh) | 一种三元共聚阳离子聚丙烯酰胺的制备方法 | |
KR100853926B1 (ko) | 양성 수용성 고분자 분산액 및 그 사용방법 | |
US6071379A (en) | Papermaking process utilizing hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide as retention and drainage aids | |
JP6152108B2 (ja) | 高分子凝集剤及びその製造方法並びにそれを用いる汚泥の脱水方法 | |
CN113248651B (zh) | 一种造纸助留剂及其制备方法和应用 | |
JP3712946B2 (ja) | 両性水溶性高分子分散液 | |
CN108239223A (zh) | 一种高相对分子质量微交联聚二甲基二烯丙基氯化铵的制备方法 | |
CN114456311B (zh) | 微交联两性离子聚丙烯酰胺的制备方法及应用 | |
CN114773531A (zh) | 一种改性壳聚糖絮凝剂及其制备方法和应用 | |
JP4846617B2 (ja) | 両性型高分子凝集剤およびこれを用いた汚泥処理方法 | |
JPH06212597A (ja) | 製紙用薬剤 | |
JP4149795B2 (ja) | 汚泥脱水剤 | |
JP4064194B2 (ja) | 凝集剤及びその使用方法 | |
CN114149591B (zh) | 一种具有三元互穿网络结构的聚丙烯酰胺聚合物及其制备方法 | |
US20220306510A1 (en) | Polymeric structure and its uses | |
JP2860554B2 (ja) | カチオン性アクリルアミド系重合体の製造方法およびその用途 | |
JP3352835B2 (ja) | 両性高分子凝集剤 | |
JPH0364200B2 (zh) | ||
JPH10266091A (ja) | 製紙用添加剤 | |
JPS5946199A (ja) | 汚泥の脱水方法 | |
CN118496416A (zh) | 一种强耐盐性和抗温性的疏水缔合共聚物及其制备方法 |
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 | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A papermaking retention aid and its preparation method and Application Effective date of registration: 20211228 Granted publication date: 20211001 Pledgee: Shandong Hanxiang Tongda import and Export Co.,Ltd. Pledgor: SHANDONG NUOER BIOLOGICAL TECHNOLOGY Co.,Ltd. Registration number: Y2021980016506 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220725 Granted publication date: 20211001 Pledgee: Shandong Hanxiang Tongda import and Export Co.,Ltd. Pledgor: SHANDONG NUOER BIOLOGICAL TECHNOLOGY Co.,Ltd. Registration number: Y2021980016506 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A retention aid for papermaking and its preparation method and application Effective date of registration: 20231108 Granted publication date: 20211001 Pledgee: Dongying Bank Co.,Ltd. Xianhe sub branch Pledgor: SHANDONG NUOER BIOLOGICAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980064601 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |