WO2022119207A1 - 고흡수성 수지의 제조 방법 - Google Patents
고흡수성 수지의 제조 방법 Download PDFInfo
- Publication number
- WO2022119207A1 WO2022119207A1 PCT/KR2021/017211 KR2021017211W WO2022119207A1 WO 2022119207 A1 WO2022119207 A1 WO 2022119207A1 KR 2021017211 W KR2021017211 W KR 2021017211W WO 2022119207 A1 WO2022119207 A1 WO 2022119207A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- manufacturing
- formula
- surface crosslinking
- crosslinking solution
- Prior art date
Links
- 229920000247 superabsorbent polymer Polymers 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 55
- 239000000178 monomer Substances 0.000 claims description 45
- 238000004132 cross linking Methods 0.000 claims description 43
- 239000011347 resin Substances 0.000 claims description 38
- 229920005989 resin Polymers 0.000 claims description 38
- 239000000017 hydrogel Substances 0.000 claims description 29
- 238000001035 drying Methods 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 20
- 150000001875 compounds Chemical class 0.000 claims description 16
- 238000010298 pulverizing process Methods 0.000 claims description 16
- 239000000499 gel Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000003431 cross linking reagent Substances 0.000 claims description 13
- 125000003277 amino group Chemical group 0.000 claims description 9
- 229920001661 Chitosan Polymers 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 229920006037 cross link polymer Polymers 0.000 claims description 4
- 230000000379 polymerizing effect Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 229920000858 Cyclodextrin Polymers 0.000 claims description 3
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 abstract description 17
- 239000000243 solution Substances 0.000 description 27
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 20
- 229940048053 acrylate Drugs 0.000 description 20
- 239000002585 base Substances 0.000 description 19
- 239000000203 mixture Substances 0.000 description 18
- 238000006116 polymerization reaction Methods 0.000 description 17
- 239000002245 particle Substances 0.000 description 16
- 239000003505 polymerization initiator Substances 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- -1 amine salt Chemical class 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 9
- 239000010410 layer Substances 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000002562 thickening agent Substances 0.000 description 8
- 239000003999 initiator Substances 0.000 description 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 239000004583 superabsorbent polymers (SAPs) Substances 0.000 description 6
- 238000012719 thermal polymerization Methods 0.000 description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 238000006386 neutralization reaction Methods 0.000 description 5
- 229920001223 polyethylene glycol Polymers 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000004088 foaming agent Substances 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical group NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 2
- AZCYBBHXCQYWTO-UHFFFAOYSA-N 2-[(2-chloro-6-fluorophenyl)methoxy]benzaldehyde Chemical compound FC1=CC=CC(Cl)=C1COC1=CC=CC=C1C=O AZCYBBHXCQYWTO-UHFFFAOYSA-N 0.000 description 2
- AMIJXNFLZXFHJA-UHFFFAOYSA-N 2-dimethylphosphoryl-1-(2,4,6-trimethylphenyl)ethanone Chemical compound CC1=C(C(=O)CP(C)(C)=O)C(=CC(=C1)C)C AMIJXNFLZXFHJA-UHFFFAOYSA-N 0.000 description 2
- NLGDWWCZQDIASO-UHFFFAOYSA-N 2-hydroxy-1-(7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-yl)-2-phenylethanone Chemical compound OC(C(=O)c1cccc2Oc12)c1ccccc1 NLGDWWCZQDIASO-UHFFFAOYSA-N 0.000 description 2
- XLLIQLLCWZCATF-UHFFFAOYSA-N 2-methoxyethyl acetate Chemical compound COCCOC(C)=O XLLIQLLCWZCATF-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- ICGLPKIVTVWCFT-UHFFFAOYSA-N 4-methylbenzenesulfonohydrazide Chemical compound CC1=CC=C(S(=O)(=O)NN)C=C1 ICGLPKIVTVWCFT-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 2
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 229920002907 Guar gum Polymers 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 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 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 2
- 235000019399 azodicarbonamide Nutrition 0.000 description 2
- LBSPZZSGTIBOFG-UHFFFAOYSA-N bis[2-(4,5-dihydro-1h-imidazol-2-yl)propan-2-yl]diazene;dihydrochloride Chemical compound Cl.Cl.N=1CCNC=1C(C)(C)N=NC(C)(C)C1=NCCN1 LBSPZZSGTIBOFG-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 description 2
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 235000010417 guar gum Nutrition 0.000 description 2
- 239000000665 guar gum Substances 0.000 description 2
- 229960002154 guar gum Drugs 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 2
- 239000011736 potassium bicarbonate Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 1
- FDSUVTROAWLVJA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OCC(CO)(CO)COCC(CO)(CO)CO FDSUVTROAWLVJA-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- CKSAKVMRQYOFBC-UHFFFAOYSA-N 2-cyanopropan-2-yliminourea Chemical compound N#CC(C)(C)N=NC(N)=O CKSAKVMRQYOFBC-UHFFFAOYSA-N 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- PQSQBXGSIRXRFL-UHFFFAOYSA-N 2-methylpropanamide;dihydrochloride Chemical compound Cl.Cl.CC(C)C(N)=O PQSQBXGSIRXRFL-UHFFFAOYSA-N 0.000 description 1
- AUZRCMMVHXRSGT-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid;prop-2-enamide Chemical compound NC(=O)C=C.CC(C)CS(O)(=O)=O AUZRCMMVHXRSGT-UHFFFAOYSA-N 0.000 description 1
- SMBRHGJEDJVDOB-UHFFFAOYSA-N 2-methylpropanimidamide;dihydrochloride Chemical compound Cl.Cl.CC(C)C(N)=N SMBRHGJEDJVDOB-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- MJIFFWRTVONWNO-UHFFFAOYSA-N 3-oxopent-4-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CCC(=O)C=C MJIFFWRTVONWNO-UHFFFAOYSA-N 0.000 description 1
- SVYPQURSUBDSIQ-UHFFFAOYSA-N 4-methyl-3-oxopent-4-ene-1-sulfonic acid Chemical compound CC(=C)C(=O)CCS(O)(=O)=O SVYPQURSUBDSIQ-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Natural products OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- VOZDORDSKQWLSK-UHFFFAOYSA-N C1(=CC=CC=C1)C(C(=O)O)=O.C(C=O)(=O)OC1=CC=CC=C1 Chemical compound C1(=CC=CC=C1)C(C(=O)O)=O.C(C=O)(=O)OC1=CC=CC=C1 VOZDORDSKQWLSK-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 229920000896 Ethulose Polymers 0.000 description 1
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229920000569 Gum karaya Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 229920000161 Locust bean gum Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Natural products P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- 235000010451 Plantago psyllium Nutrition 0.000 description 1
- 244000090599 Plantago psyllium Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000934878 Sterculia Species 0.000 description 1
- 229920001615 Tragacanth Polymers 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- GCSPRLPXTPMSTL-IBDNADADSA-N [(2s,3r,4s,5s,6r)-2-[(2s,3s,4s,5r)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[C@@]1([C@]2(CO)[C@H]([C@H](O)[C@@H](CO)O2)O)O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O GCSPRLPXTPMSTL-IBDNADADSA-N 0.000 description 1
- SZYSLWCAWVWFLT-UTGHZIEOSA-N [(2s,3s,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)-2-[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxolan-2-yl]methyl octadecanoate Chemical compound O([C@@H]1[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O1)O)[C@]1(COC(=O)CCCCCCCCCCCCCCCCC)O[C@H](CO)[C@@H](O)[C@@H]1O SZYSLWCAWVWFLT-UTGHZIEOSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000001785 acacia senegal l. willd gum Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 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
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000000420 anogeissus latifolia wall. gum Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000000305 astragalus gummifer gum Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 229930188620 butyrolactone Natural products 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 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
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- HBYOLNPZXLHVQA-UHFFFAOYSA-J dicalcium dicarbonate Chemical compound [Ca+2].[Ca+2].[O-]C([O-])=O.[O-]C([O-])=O HBYOLNPZXLHVQA-UHFFFAOYSA-J 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- PODOEQVNFJSWIK-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethoxyphenyl)methanone Chemical compound COC1=CC(OC)=CC(OC)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 PODOEQVNFJSWIK-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- KVIPHDKUOLVVQN-UHFFFAOYSA-N ethene;hydrate Chemical group O.C=C KVIPHDKUOLVVQN-UHFFFAOYSA-N 0.000 description 1
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000019314 gum ghatti Nutrition 0.000 description 1
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-M hexadecanoate Chemical compound CCCCCCCCCCCCCCCC([O-])=O IPCSVZSSVZVIGE-UHFFFAOYSA-M 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000010494 karaya gum Nutrition 0.000 description 1
- 239000000231 karaya gum Substances 0.000 description 1
- 229940039371 karaya gum Drugs 0.000 description 1
- TYQCGQRIZGCHNB-JLAZNSOCSA-N l-ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(O)=C(O)C1=O TYQCGQRIZGCHNB-JLAZNSOCSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000010420 locust bean gum Nutrition 0.000 description 1
- 239000000711 locust bean gum Substances 0.000 description 1
- QWDJLDTYWNBUKE-UHFFFAOYSA-L magnesium bicarbonate Chemical compound [Mg+2].OC([O-])=O.OC([O-])=O QWDJLDTYWNBUKE-UHFFFAOYSA-L 0.000 description 1
- 239000002370 magnesium bicarbonate Substances 0.000 description 1
- 229910000022 magnesium bicarbonate Inorganic materials 0.000 description 1
- 235000014824 magnesium bicarbonate Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical group C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 239000011802 pulverized particle Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
- B01J20/267—Cross-linked polymers
-
- 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
- C08F6/00—Post-polymerisation treatments
- C08F6/008—Treatment of solid polymer wetted by water or organic solvents, e.g. coagulum, filter cakes
-
- 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
- C08F6/00—Post-polymerisation treatments
- C08F6/26—Treatment of polymers prepared in bulk also solid polymers or polymer melts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/245—Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
- B01J2220/68—Superabsorbents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
Definitions
- the present invention relates to a method of manufacturing a superabsorbent polymer in which an interpenetrating polymer network (IPN) is formed on the surface of the superabsorbent polymer.
- IPN interpenetrating polymer network
- Super Absorbent Polymer is a synthetic polymer material that can absorb water 500 to 1,000 times its own weight. Material), etc., are named differently.
- the superabsorbent polymer as described above has started to be put to practical use as a sanitary tool, and now, in addition to hygiene products such as paper diapers for children, a soil repair agent for gardening, a water repellent material for civil engineering and construction, a sheet for seedlings, a freshness maintenance agent in the food distribution field, and It is widely used as a material for poultice, etc.
- these superabsorbent polymers are widely used in sanitary materials such as diapers and sanitary napkins.
- the superabsorbent polymer is generally included in a state spread in the pulp.
- efforts have been made to provide sanitary materials such as diapers having a thinner thickness, and as a part of that, the content of pulp is reduced or, further, so-called pulpless diapers such as diapers in which no pulp is used are used. Development is actively underway.
- the superabsorbent polymer is included in a relatively high ratio, and the superabsorbent polymer particles are inevitably included in multiple layers in the sanitary material.
- the superabsorbent polymer needs to basically exhibit high absorption performance and absorption rate.
- a method of crosslinking the surface of the superabsorbent polymer is used.
- the surface crosslinking of the superabsorbent polymer forms a surface crosslinking layer by binding functional groups such as carboxyl groups on the surface of the superabsorbent polymer, thereby improving the physical properties of the superabsorbent polymer.
- functional groups such as carboxyl groups
- the surface cross-linking layer is formed by this method, physical strength may be increased, but the absorption rate of the superabsorbent polymer may be reduced. Accordingly, there is a need for a method of forming a surface cross-linking layer without impairing the original physical properties of the superabsorbent polymer.
- An object of the present invention is to provide a method for manufacturing a superabsorbent polymer, in which an interpenetrating polymer network (IPN) is formed on the surface of the superabsorbent polymer in forming the surface crosslinking layer of the superabsorbent polymer.
- IPN interpenetrating polymer network
- the present invention provides a method for preparing the following super absorbent polymer:
- step 1 1) crosslinking and polymerizing a water-soluble ethylenically unsaturated monomer having an acidic group at least partially neutralized in the presence of an internal crosslinking agent to form a hydrogel polymer including a first crosslinked polymer (step 1);
- step 2 coarsely pulverizing the hydrogel polymer
- step 3 drying, pulverizing and classifying the hydrogel polymer to form a base resin powder (step 3);
- step 4 reacting the base resin powder and the surface crosslinking solution to form an interpenetrating polymer network on the surface of the base resin powder (step 4),
- the surface crosslinking solution comprises a monomer having an amine group and a compound represented by the following Chemical Formula 1,
- n is an integer from 1 to 10;
- the method for preparing a super absorbent polymer largely includes a step of preparing a hydrogel polymer by polymerizing a water-soluble ethylenically unsaturated monomer, and pulverizing the same.
- a method of crosslinking the surface of the superabsorbent polymer is used.
- the surface crosslinking of the superabsorbent polymer is generally formed by allowing functional groups such as hydroxyl present on the surface of the superabsorbent polymer to bond with each other. Some physical properties may be deteriorated.
- a new polymer chain is introduced to the surface of the superabsorbent polymer as an interpenetrating polymer network (IPN) instead of a functional group such as hydroxy on the surface of the superabsorbent polymer to form a surface crosslinking layer.
- IPN interpenetrating polymer network
- a surface crosslinking layer is formed without impairing the original physical properties of the superabsorbent polymer, and as a result, various physical properties of the superabsorbent polymer can be improved.
- Step 1 is a step of preparing a hydrogel polymer, and specifically, a step of cross-linking a monomer composition including a water-soluble ethylenically unsaturated monomer having at least a partially neutralized acid group to form a hydrogel polymer.
- the water-soluble ethylenically unsaturated monomer may be any monomer commonly used in the preparation of super absorbent polymers. Specifically, the water-soluble ethylenically unsaturated monomer may be a compound represented by the following Chemical Formula 2:
- R 1 is an alkyl group having 2 to 5 carbon atoms including an unsaturated bond
- M 1 is a hydrogen atom, a monovalent or divalent metal, an ammonium group, or an organic amine salt.
- the water-soluble ethylenically unsaturated monomer may be at least one selected from the group consisting of acrylic acid, methacrylic acid, and monovalent metal salts, divalent metal salts, ammonium salts and organic amine salts of these acids.
- acrylic acid or a salt thereof is used as the water-soluble ethylenically unsaturated monomer, it is advantageous because a superabsorbent polymer with improved water absorption can be obtained.
- the monomer includes maleic anhydride, fumaric acid, crotonic acid, itaconic acid, 2-acryloylethane sulfonic acid, 2-methacryloylethanesulfonic acid, 2-(meth)acryloylpropanesulfonic acid, or 2-( anionic monomers of meth)acrylamide-2-methyl propane sulfonic acid and salts thereof; (meth)acrylamide, N-substituted (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, methoxypolyethylene glycol (meth)acrylate or polyethylene glycol ( a nonionic hydrophilic-containing monomer of meth)acrylate; and (N,N)-dimethylaminoethyl (meth)acrylate or (N,N)-dimethylaminopropyl (meth)acrylamide containing an amino group-containing unsaturated monomer and a quaternary product thereof
- the water-soluble ethylenically unsaturated monomer may have an acidic group, and at least a portion of the acidic group may be neutralized.
- the monomer may be partially neutralized with an alkali material such as sodium hydroxide, potassium hydroxide, ammonium hydroxide and the like.
- the degree of neutralization of the monomer may be 40 to 95 mol%, or 40 to 80 mol%, or 45 to 75 mol%.
- the range of the degree of neutralization may vary depending on the final physical properties, but if the degree of neutralization is too high, the neutralized monomer is precipitated and it may be difficult for polymerization to proceed smoothly. It can exhibit properties like elastic rubber, which is difficult to handle.
- the monomer composition may include a polymerization initiator generally used in the preparation of the super absorbent polymer.
- a thermal polymerization initiator or a photo polymerization initiator may be used depending on the polymerization method.
- a thermal polymerization initiator may be additionally included.
- the photopolymerization initiator for example, benzoin ether (benzoin ether), dialkyl acetophenone (dialkyl acetophenone), hydroxyl alkyl ketone (hydroxyl alkylketone), phenyl glyoxylate (phenyl glyoxylate), benzyl dimethyl ketal ( At least one compound selected from the group consisting of Benzyl Dimethyl Ketal), acyl phosphine, and alpha-aminoketone may be used.
- benzoin ether benzoin ether
- dialkyl acetophenone dialkyl acetophenone
- hydroxyl alkyl ketone hydroxyl alkylketone
- phenyl glyoxylate phenyl glyoxylate
- benzyl dimethyl ketal At least one compound selected from the group consisting of Benzyl Dimethyl Ketal
- acyl phosphine acyl phosphine
- acylphosphine commercially available lucirin TPO, that is, 2,4,6-trimethyl-benzoyl-trimethyl phosphine oxide (2,4,6-trimethyl-benzoyl-trimethyl phosphine oxide) may be used.
- 2,4,6-trimethyl-benzoyl-trimethyl phosphine oxide 2,4,6-trimethyl-benzoyl-trimethyl phosphine oxide
- More various photopolymerization initiators are disclosed on page 115 of Reinhold Schwalm's book "UV Coatings: Basics, Recent Developments and New Application (Elsevier, 2007)", which can be referred to.
- the thermal polymerization initiator at least one compound selected from the group consisting of a persulfate-based initiator, an azo-based initiator, hydrogen peroxide, and ascorbic acid may be used.
- the persulfate-based initiator is sodium persulfate (Na 2 S 2 O 8 ), potassium persulfate (Potassium persulfate; K 2 S 2 O 8 ), ammonium persulfate (Ammonium persulfate; (NH 4 ) 2 S 2 O 8 ) and the like.
- the polymerization initiator may be added at a concentration of 0.001 to 1% by weight, or 0.005 to 0.1% by weight based on the monomer composition. That is, when the concentration of the polymerization initiator is too low, the polymerization rate may be slowed and the residual monomer may be extracted in a large amount in the final product, which is not preferable. Conversely, when the concentration of the polymerization initiator is excessively high, the polymer chain constituting the network is shortened, so that the content of water-soluble components is increased, and the physical properties of the resin may be lowered, such as lowered absorbency under pressure, which is not preferable.
- crosslinking agent is for internally crosslinking the hydrogel polymer, and may be used separately from the "surface crosslinking agent" to be described later.
- the internal crosslinking agent any compound may be used as long as it enables the introduction of a crosslinking bond during polymerization of the water-soluble ethylenically unsaturated monomer.
- the internal crosslinking agent is N,N'-methylenebisacrylamide, trimethylolpropane tri(meth)acrylate, ethylene glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate, propylene glycol di (meth)acrylate, polypropylene glycol di(meth)acrylate, butanediol di(meth)acrylate, butylene glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, hexanedioldiol (meth)acrylate, triethylene glycol di(meth)acrylate, tripropylene glycol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, dipentaerythritol pentaacrylate
- the internal crosslinking agent may be added at a concentration of 0.001 to 1 wt%, or 0.01 to 0.8 wt%, or 0.1 to 0.7 wt%, based on the monomer composition. That is, when the concentration of the internal crosslinking agent is too low, the absorption rate of the resin may be lowered and the gel strength may be weakened, which is not preferable. Conversely, when the concentration of the internal crosslinking agent is too high, the absorbency of the resin may be lowered, which may make it undesirable as an absorber.
- cross-linking polymerization of the monomer composition may be carried out in the presence of a foaming agent, depending on the necessity and degree of improvement in the absorption rate.
- a foaming agent may be decomposed in the course of the crosslinking polymerization reaction to generate gas, thereby forming pores in the hydrogel polymer.
- the blowing agent is sodium bicarbonate (sodium bicarbonate), sodium carbonate (sodium carbonate), potassium bicarbonate (potassium bicarbonate), potassium carbonate (potassium carbonate), calcium bicarbonate (calcium bicarbonate), calcium carbonate (calcium) bicarbonate), magnesium bicarbonate, magnesium carbonate, magnesium carbonate, magnesium carbonate, magnesium carbonate, magnesium carbonate, magnesium carbonate, magnesium carbonate, magnesium carbonate, magnesium carbonate, azodicarbonamide (ADCA), dinitroso pentamethylene tetramine (DPT), p,p'-oxybis (benzenesulfonyl hydrazide) (p,p'-oxybis(benzenesulfonyl hydrazide), OBSH), p-toluenesulfonyl hydrazide (TSH), sucrose stearate, water It may include one or more compounds selected from the group consisting of cross palmitate and sucrose laurate.
- ADCA dinitroso
- the blowing agent may be present in an amount of 1000 to 4000 ppmw in the monomer composition, and more specifically, 1000 ppm or more, or 1100 ppmw or more, or 1200 ppmw or more; And it may be present in an amount of 4000 ppmw or less, or 3500 ppmw or less, or 3000 ppmw or less.
- the monomer composition may further include additives such as a thickener, a plasticizer, a storage stabilizer, and an antioxidant, if necessary.
- additives such as a thickener, a plasticizer, a storage stabilizer, and an antioxidant, if necessary.
- the monomer composition may be prepared in the form of a solution in which raw materials such as the aforementioned water-soluble ethylenically unsaturated monomer, polymerization initiator, internal crosslinking agent, and foaming agent are dissolved in a solvent.
- the usable solvent may be used without limitation in its composition as long as it can dissolve the above-mentioned raw materials.
- the solvent water, ethanol, ethylene glycol, diethylene glycol, triethylene glycol, 1,4-butanediol, propylene glycol, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate , methyl ethyl ketone, acetone, methyl amyl ketone, cyclohexanone, cyclopentanone, diethylene glycol monomethyl ether, diethylene glycol ethyl ether, toluene, xylene, butyrolactone, carbitol, methyl cellosolve acetate, N,N-dimethylacetamide, or a mixture thereof, and the like may be used.
- Formation of the hydrogel polymer through polymerization of the monomer composition may be performed by a conventional polymerization method, and the process is not particularly limited.
- the polymerization method is largely divided into thermal polymerization and photopolymerization depending on the type of polymerization energy source.
- the polymerization may be performed in a reactor having a stirring shaft such as a kneader, and photopolymerization In the case of proceeding, it may be carried out in a reactor equipped with a movable conveyor belt.
- the hydrogel polymer may be obtained by introducing the monomer composition into a reactor such as a kneader equipped with a stirring shaft, and thermally polymerizing the monomer composition by supplying hot air or heating the reactor.
- a reactor such as a kneader equipped with a stirring shaft
- the hydrogel polymer discharged to the reactor outlet may be obtained as particles of several millimeters to several centimeters.
- the obtained hydrogel polymer can be obtained in various forms depending on the concentration and injection rate of the monomer composition to be injected.
- the hydrogel polymer having a (weight average) particle diameter of 2 to 50 mm can be obtained.
- a sheet-form hydrogel polymer when photopolymerization of the monomer composition is performed in a reactor equipped with a movable conveyor belt, a sheet-form hydrogel polymer may be obtained.
- the thickness of the sheet may vary depending on the concentration of the injected monomer composition and the injection rate. In order to ensure the production rate while allowing the entire sheet to be uniformly polymerized, it is usually adjusted to a thickness of 0.5 to 10 cm. desirable.
- the hydrogel polymer formed in this way may exhibit a moisture content of 40 to 80% by weight.
- the moisture content is a weight occupied by moisture in the total weight of the hydrogel polymer, and may be a value obtained by subtracting the weight of the polymer in a dry state from the weight of the hydrogel polymer.
- it can be defined as a value calculated by measuring the weight loss due to evaporation of moisture in the polymer during drying by raising the temperature of the polymer through infrared heating.
- the drying condition is such that the temperature is raised from room temperature to about 180°C and then maintained at 180°C, and the total drying time may be set to 20 minutes including 5 minutes of the temperature rising step.
- Step 2 of the present invention is a step of gel grinding the hydrogel polymer prepared in step 1 above.
- the present invention includes a step of pulverizing the hydrogel polymer before drying.
- the term 'coarse pulverization' is used herein for convenience.
- the pulverizer used for the pulverization is not limited in configuration, but specifically, a vertical pulverizer, a turbo cutter, a turbo grinder, a rotary cutter mill.
- any one selected from the group of crushing devices consisting of a cutter mill, a disc mill, a shred crusher, a crusher, a chopper and a disc cutter may include, but is not limited to the above-described example.
- the hydrogel polymer in the coarse grinding step, may have a particle diameter of about 2 mm to about 10 mm. Grinding to a particle diameter of less than 2 mm is not technically easy due to the high water content of the hydrogel polymer, and a phenomenon of agglomeration between the pulverized particles may occur. On the other hand, when the particle diameter is more than 10 mm, the effect of increasing the efficiency of the drying step performed later may be insignificant.
- Step 3 of the present invention is a step of forming a base resin powder by drying, pulverizing and classifying the hydrogel polymer gel-pulverized in step 2 above.
- the drying may be performed at a temperature of 120 to 250 °C, 140 to 200 °C, or 150 to 190 °C.
- the drying temperature may be defined as the temperature of the thermal medium supplied for drying or the temperature inside the drying reactor including the thermal medium and the polymer in the drying process. If the drying time is long due to the low drying temperature, the process efficiency is lowered. In order to prevent this, the drying temperature is preferably 120° C. or higher. In addition, when the drying temperature is higher than necessary, the surface of the hydrogel polymer is excessively dried, which may increase the generation of fine powder in the subsequent pulverization step, and the physical properties of the final resin may decrease. In order to prevent this, the drying temperature is It is preferable that it is 250 degrees C or less.
- the drying time in the drying step is not particularly limited, but may be adjusted to 20 to 90 minutes under the drying temperature in consideration of process efficiency and physical properties of the resin.
- the drying may be performed using a conventional medium, for example, hot air supply to the pulverized hydrogel polymer, infrared irradiation, microwave irradiation, or ultraviolet irradiation may be performed through a method.
- a conventional medium for example, hot air supply to the pulverized hydrogel polymer, infrared irradiation, microwave irradiation, or ultraviolet irradiation may be performed through a method.
- drying is preferably performed so that the dried polymer has a moisture content of 0.1 to 10% by weight. That is, when the moisture content of the dried polymer is less than 0.1% by weight, it is not preferable because a rise in manufacturing cost and degradation of the crosslinked polymer may occur due to excessive drying. And, when the moisture content of the dried polymer exceeds 10% by weight, defects may occur in the subsequent process, which is not preferable.
- the dried hydrogel polymer may be pulverized. This is a step for optimizing the surface area of the base resin powder and the superabsorbent polymer.
- the pulverization may be performed so that the pulverized polymer has a particle size of 150 to 850 ⁇ m.
- a grinder that can be used at this time is usually a pin mill, a hammer mill, a screw mill, a roll mill, a disk mill, a jog mill, etc. of can be used.
- a step of selectively classifying particles having a particle diameter of 150 to 850 ⁇ m from the polymer particles obtained through the pulverization step is performed.
- the base resin powder can be obtained through the above classification step.
- the base resin powder may have a particle diameter of 150 to 850 ⁇ m, and may contain fine powder having a particle diameter of less than 150 ⁇ m in an amount of 2 wt% or less, or 1 wt% or less.
- Step 4 of the present invention is a step of reacting the base resin powder prepared in step 3 with a surface crosslinking solution to form an interpenetrating polymer network on the surface of the base resin powder.
- the present invention is characterized in that an interpenetrating polymer network (IPN) is formed on the surface of the superabsorbent polymer, and for this purpose, the surface crosslinking solution includes a monomer having an amine group and a compound represented by Formula 1 It is characterized in that it includes.
- IPN interpenetrating polymer network
- the compound represented by Formula 1 contains an aldehyde group in the chemical structure, so that it can react with each other on the surface of the base resin powder together with the monomer having an amine group to form an interpenetrating polymer network, resulting in a surface cross-linking layer can be formed
- the monomer having an amine group is chitosan or cyclodextrin.
- the cyclodextrin means that an amine group is substituted.
- the solvent of the surface crosslinking solution water, methanol, cyclohexane, or a combination thereof may be used, and most preferably water may be used.
- the solvent may be used in an amount of 5 to 50 parts by weight based on 100 parts by weight of the base resin powder.
- the pH of the surface crosslinking solution is 1 to 3.
- the reaction of chitosan and the compound represented by Formula 1 may be effectively induced.
- the pH may be an acidic material without limitation, for example, hydrochloric acid, sulfuric acid, etc. may be used.
- the concentration of chitosan in the surface crosslinking solution is 1 N to 10 N.
- the concentration of the compound represented by Formula 1 is 1 N to 10 N.
- the weight ratio of the chitosan and the compound represented by Formula 1 in the surface crosslinking solution is 1:1 to 5:1, more preferably 1:1 to 3:1.
- n in Formula 1 is 2 to 4. More preferably, n in Formula 1 is 3. That is, preferably, the compound represented by Formula 1 is glutaraldehyde.
- the surface crosslinking solution may include an inorganic filler.
- the inorganic filler may include silica, aluminum oxide, or silicate.
- the inorganic filler may be included in an amount of 0.01 to 0.5 parts by weight based on 100 parts by weight of the base resin powder.
- the surface crosslinking solution may further include a thickener. If the surface of the base resin powder is further crosslinked in the presence of a thickener in this way, deterioration of physical properties can be minimized even after pulverization.
- a thickener at least one selected from polysaccharides and hydroxy-containing polymers may be used as the thickener.
- the polysaccharide a gum-based thickener and a cellulose-based thickener may be used.
- the gum-based thickener examples include xanthan gum, arabic gum, karaya gum, tragacanth gum, ghatti gum, guar gum (guar gum), locust bean gum, and psyllium seed gum, and the like
- specific examples of the cellulose-based thickener include hydroxypropylmethylcellulose, carboxymethylcellulose, and methylcellulose.
- specific examples of the hydroxy-containing polymer may include polyethylene glycol and polyvinyl alcohol.
- step 4 the method of adding the surface crosslinking solution to the reaction tank and mixing the base resin, spraying the surface crosslinking solution on the base resin, and continuously adding the base resin and the surface crosslinking solution to a continuously operated mixer A method of supplying and mixing may be used.
- step 4 may be performed under a temperature of 20 to 90 °C. In addition, step 4 may be performed for 10 minutes to 24 hours.
- the present invention provides a super absorbent polymer prepared according to the manufacturing method of the present invention described above.
- the superabsorbent polymer may include a base resin powder comprising a crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least a partially neutralized acidic group; and a surface crosslinking layer formed on the base resin powder and including an interpenetrating polymer network.
- the super absorbent polymer is obtained as particles having a particle diameter of 150 to 850 ⁇ m.
- the superabsorbent polymer has excellent CRC and gel strength.
- CRC Centrifugal Retention Capacity
- water retention capacity means the amount of a solution that can be absorbed under no load.
- the CRC may be measured according to EDANA WSP 241.3, and a specific measurement method has been described in detail in Examples below.
- the CRC of the super absorbent polymer is 30 to 40 g/g.
- the CRC of the superabsorbent polymer is 30.5 g/g or more, 31.0 g/g or more, 31.5 g/g or more, or 32.0 g/g or more, 39 g/g or less, 38 g/g or less, 37 g/g or less, 36 g/g or less, or 35 g/g or less.
- gel strength used in the present invention refers to the degree to which the superabsorbent polymer maintains the absorbency and water holding power despite external pressure, that is, the superabsorbent polymer maintains its shape well even after absorbing moisture. indicates the degree. A specific method for measuring the gel strength is described in detail in Examples below.
- the superabsorbent polymer has a gel strength of 1.50 N to 3.00 N.
- the gel strength of the super absorbent polymer is 1.55 N or more, 1.60 N or more, 1.65 N or more, or 1.70 N or more, and 2.90 N or less, 2.80 N or less, 2.70 N or less, 2.60 N or more, 2.50 N or less , 2.40 N or less, 2.30 N or less, 2.20 N or less, 2.10 N or less, or 2.00 N or less.
- an interpenetrating polymer network is formed on the surface of the superabsorbent polymer to improve the physical properties of the superabsorbent polymer
- the crumb was dried in an oven capable of transferring air volume up and down. Hot air of 180° C. or higher was flowed from the bottom to the top for 15 minutes and from the top to the bottom for 15 minutes to dry evenly, and the moisture content of the dried body after drying was set to 2% or less.
- the base resin was prepared by pulverizing with a pulverizer and classifying to select a size of 150 to 850 ⁇ m.
- chitosan 0.05 g
- glutaraldehyde 0.025 mL
- the surface crosslinking solution was sprayed and mixed evenly, followed by a reaction at 25° C. for 40 minutes to prepare a superabsorbent polymer.
- a superabsorbent polymer was prepared in the same manner as in Example 1, except that the composition of the surface crosslinking solution was changed as shown in Table 1 below.
- the water holding capacity by the no-load absorption magnification of each resin was measured according to EDANA WSP 241.3.
- CRC (g/g) ⁇ [W 2 (g) - W 1 (g)]/W 0 (g) ⁇ - 1
- the storage modulus (G') and the loss modulus (loss modulus) (G'') is a constant linear viscoelastic
- the strain in the regime section was found.
- the strain rate of 0.1% was within the linear regime.
- the viscoelasticity (G', G'') of the swollen polymer for 60 seconds was measured at a constant frequency of 10 rad/s as a strain value in the linear regime section. At this time, the obtained G' value was averaged to obtain the gel strength.
- Example 1 10 mL 0.05 g 0.025 mL 35.9 1.73
- Example 2 30 mL 0.10 g 0.050 mL 34.4 1.96
- Example 3 30 mL 0.05 g 0.025 mL 35.2 1.77
- Example 4 10 mL 0.10 g 0.050 mL 34.3 1.84
- the superabsorbent polymers of Examples 1 to 4 according to the present invention had a similar level of CRC but increased gel strength compared to the superabsorbent polymers of Comparative Examples 1 and 2.
- the superabsorbent polymers of Comparative Examples 1 and 2 are also cross-linked to have a cross-linked surface layer having a network structure. It was confirmed that the structure was formed and entangled, thereby improving the gel strength.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
0.1N HCl 용액 | 키토산 | 글루타르알데하이드 | CRC (g/g) |
겔 강도 (N) |
|
실시예 1 | 10 mL | 0.05 g | 0.025 mL | 35.9 | 1.73 |
실시예 2 | 30 mL | 0.10 g | 0.050 mL | 34.4 | 1.96 |
실시예 3 | 30 mL | 0.05 g | 0.025 mL | 35.2 | 1.77 |
실시예 4 | 10 mL | 0.10 g | 0.050 mL | 34.3 | 1.84 |
물 | 에틸렌카보네이트 | 프로필렌카보네이트 | 폴리카르복실레이트염 | 알루미늄 설페이트 | CRC (g/g) |
겔 강도 (N) |
|
비교예 1 | 4.4 mL | 0.3 g | (미사용) | 0.07 g | 0.3 g | 39.9 | 0.56 |
비교예 2 | 5.4 mL | 0.9 g | 0.9 g | (미사용) | 0.2 g | 36.4 | 1.68 |
Claims (12)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/007,947 US20230272169A1 (en) | 2020-12-02 | 2021-11-23 | Method of Preparing Superabsorbent Polymer |
JP2022573534A JP2023527468A (ja) | 2020-12-02 | 2021-11-23 | 高吸水性樹脂の製造方法 |
CN202180036426.0A CN115698143A (zh) | 2020-12-02 | 2021-11-23 | 制备超吸收性聚合物的方法 |
EP21900895.0A EP4137535A4 (en) | 2020-12-02 | 2021-11-23 | METHOD FOR MANUFACTURING A SUPERABSORBENT POLYMER |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20200166858 | 2020-12-02 | ||
KR10-2020-0166858 | 2020-12-02 | ||
KR1020210159519A KR20220077867A (ko) | 2020-12-02 | 2021-11-18 | 고흡수성 수지의 제조 방법 |
KR10-2021-0159519 | 2021-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022119207A1 true WO2022119207A1 (ko) | 2022-06-09 |
Family
ID=81854157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2021/017211 WO2022119207A1 (ko) | 2020-12-02 | 2021-11-23 | 고흡수성 수지의 제조 방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230272169A1 (ko) |
EP (1) | EP4137535A4 (ko) |
JP (1) | JP2023527468A (ko) |
CN (1) | CN115698143A (ko) |
WO (1) | WO2022119207A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004285548A (ja) * | 2003-01-30 | 2004-10-14 | Toyobo Co Ltd | 機能性繊維、その繊維構造物、および吸収性物品 |
KR20050023224A (ko) * | 2001-12-06 | 2005-03-09 | 킴벌리-클라크 월드와이드, 인크. | 과도적 가교결합점을 포함하는 초흡수성 조성물 |
KR20070007162A (ko) * | 2004-03-31 | 2007-01-12 | 니폰 쇼쿠바이 컴파니 리미티드 | 수성-액체-흡수제 및 그의 제조 방법 |
KR20120066369A (ko) * | 2010-12-14 | 2012-06-22 | 강원대학교산학협력단 | 글루타알데히드로 가교된 키토산 마이크로겔 및 그 제조방법 |
KR20170088892A (ko) * | 2014-11-19 | 2017-08-02 | 퍼마-픽스 인바이런멘틀 서비시스, 인크. | 키토산-기재 미소다공성 복합 물질의 제조 및 그것의 용도 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6222091B1 (en) * | 1997-11-19 | 2001-04-24 | Basf Aktiengesellschaft | Multicomponent superabsorbent gel particles |
SK7982001A3 (en) * | 1998-12-16 | 2002-02-05 | Sca Hygiene Prod Zeist Bv | Acidic superabsorbent polysaccharides |
-
2021
- 2021-11-23 EP EP21900895.0A patent/EP4137535A4/en active Pending
- 2021-11-23 WO PCT/KR2021/017211 patent/WO2022119207A1/ko unknown
- 2021-11-23 CN CN202180036426.0A patent/CN115698143A/zh active Pending
- 2021-11-23 US US18/007,947 patent/US20230272169A1/en active Pending
- 2021-11-23 JP JP2022573534A patent/JP2023527468A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050023224A (ko) * | 2001-12-06 | 2005-03-09 | 킴벌리-클라크 월드와이드, 인크. | 과도적 가교결합점을 포함하는 초흡수성 조성물 |
JP2004285548A (ja) * | 2003-01-30 | 2004-10-14 | Toyobo Co Ltd | 機能性繊維、その繊維構造物、および吸収性物品 |
KR20070007162A (ko) * | 2004-03-31 | 2007-01-12 | 니폰 쇼쿠바이 컴파니 리미티드 | 수성-액체-흡수제 및 그의 제조 방법 |
KR20120066369A (ko) * | 2010-12-14 | 2012-06-22 | 강원대학교산학협력단 | 글루타알데히드로 가교된 키토산 마이크로겔 및 그 제조방법 |
KR20170088892A (ko) * | 2014-11-19 | 2017-08-02 | 퍼마-픽스 인바이런멘틀 서비시스, 인크. | 키토산-기재 미소다공성 복합 물질의 제조 및 그것의 용도 |
Non-Patent Citations (2)
Title |
---|
"Principle of Polymerization", 1981, WILEY, pages: 203 |
See also references of EP4137535A4 |
Also Published As
Publication number | Publication date |
---|---|
EP4137535A4 (en) | 2024-01-03 |
EP4137535A1 (en) | 2023-02-22 |
CN115698143A (zh) | 2023-02-03 |
US20230272169A1 (en) | 2023-08-31 |
JP2023527468A (ja) | 2023-06-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020145548A1 (ko) | 고흡수성 수지 및 이의 제조 방법 | |
WO2020122442A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2020226385A1 (ko) | 고흡수성 수지의 제조 방법 및 고흡수성 수지 | |
WO2020122444A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2021071246A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2022119207A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2023287262A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2020149691A1 (ko) | 고흡수성 수지 및 이의 제조 방법 | |
WO2015084060A1 (ko) | 고흡수성 수지 및 이의 제조방법 | |
WO2021125871A1 (ko) | 고흡수성 수지 조성물의 제조 방법 | |
WO2020122426A1 (ko) | 고흡수성 수지 및 이의 제조 방법 | |
WO2022080641A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2020149651A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2021066503A1 (ko) | 고흡수성 수지 조성물 및 이의 제조 방법 | |
WO2021066340A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2022108430A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2020101150A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2021066313A1 (ko) | 고흡수성 수지 조성물 및 이의 제조 방법 | |
WO2020101287A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2023136481A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2024106836A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2024111948A1 (ko) | 고흡수성 수지 및 이의 제조방법 | |
WO2023106878A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2022154631A1 (ko) | 고흡수성 수지의 제조 방법 | |
WO2021054718A1 (ko) | 고흡수성 수지 및 이의 제조 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21900895 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2021900895 Country of ref document: EP Effective date: 20221118 |
|
ENP | Entry into the national phase |
Ref document number: 2022573534 Country of ref document: JP Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112022025492 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112022025492 Country of ref document: BR Kind code of ref document: A2 Effective date: 20221214 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |