WO1994011102A1 - Salt-resistant absorbent and process for producing the same - Google Patents
Salt-resistant absorbent and process for producing the same Download PDFInfo
- Publication number
- WO1994011102A1 WO1994011102A1 PCT/JP1993/001526 JP9301526W WO9411102A1 WO 1994011102 A1 WO1994011102 A1 WO 1994011102A1 JP 9301526 W JP9301526 W JP 9301526W WO 9411102 A1 WO9411102 A1 WO 9411102A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- absorbent
- water
- polysaccharide
- crosslinking agent
- salt
- Prior art date
Links
- 239000002250 absorbent Substances 0.000 title claims abstract description 72
- 230000002745 absorbent Effects 0.000 title claims abstract description 72
- 150000003839 salts Chemical class 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 12
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 45
- 239000005017 polysaccharide Substances 0.000 claims abstract description 45
- 239000002245 particle Substances 0.000 claims abstract description 41
- 150000001875 compounds Chemical class 0.000 claims abstract description 39
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 34
- 239000007864 aqueous solution Substances 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 229920000768 polyamine Polymers 0.000 claims abstract description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 5
- 150000004804 polysaccharides Chemical class 0.000 claims description 43
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- -1 ether compound Chemical class 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 8
- 229920001285 xanthan gum Polymers 0.000 claims description 8
- 235000010493 xanthan gum Nutrition 0.000 claims description 8
- 239000000230 xanthan gum Substances 0.000 claims description 8
- 229940082509 xanthan gum Drugs 0.000 claims description 8
- 125000002947 alkylene group Chemical group 0.000 claims description 7
- 150000002576 ketones Chemical class 0.000 claims description 7
- 150000007524 organic acids Chemical class 0.000 claims description 7
- 125000000524 functional group Chemical group 0.000 claims description 6
- 235000010987 pectin Nutrition 0.000 claims description 6
- 229920001277 pectin Polymers 0.000 claims description 6
- 239000001814 pectin Substances 0.000 claims description 6
- 150000003951 lactams Chemical class 0.000 claims description 5
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 2
- 229920001615 Tragacanth Polymers 0.000 claims description 2
- 235000010489 acacia gum Nutrition 0.000 claims description 2
- 239000001785 acacia senegal l. willd gum Substances 0.000 claims description 2
- 235000010443 alginic acid Nutrition 0.000 claims description 2
- 239000000783 alginic acid Substances 0.000 claims description 2
- 229920000615 alginic acid Polymers 0.000 claims description 2
- 229960001126 alginic acid Drugs 0.000 claims description 2
- 150000004781 alginic acids Chemical class 0.000 claims description 2
- 239000000305 astragalus gummifer gum Substances 0.000 claims description 2
- 229920000669 heparin Polymers 0.000 claims description 2
- 229960002897 heparin Drugs 0.000 claims description 2
- 239000004971 Cross linker Substances 0.000 claims 1
- 229960000292 pectin Drugs 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 15
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 239000012266 salt solution Substances 0.000 abstract description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 2
- 150000004676 glycans Chemical class 0.000 abstract 2
- 238000010009 beating Methods 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 description 34
- 238000010521 absorption reaction Methods 0.000 description 31
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 238000004132 cross linking Methods 0.000 description 12
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 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 7
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 7
- 239000011780 sodium chloride Substances 0.000 description 6
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- SYEWHONLFGZGLK-UHFFFAOYSA-N 2-[1,3-bis(oxiran-2-ylmethoxy)propan-2-yloxymethyl]oxirane Chemical compound C1OC1COCC(OCC1OC1)COCC1CO1 SYEWHONLFGZGLK-UHFFFAOYSA-N 0.000 description 3
- HDPLHDGYGLENEI-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)propan-2-yloxymethyl]oxirane Chemical compound C1OC1COC(C)COCC1CO1 HDPLHDGYGLENEI-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- 229920002907 Guar gum Polymers 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 229920000057 Mannan Polymers 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 229920001744 Polyaldehyde Chemical class 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 238000006266 etherification reaction Methods 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 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
- 238000005259 measurement Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000005056 polyisocyanate Chemical class 0.000 description 2
- 229920001228 polyisocyanate Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- WTYYGFLRBWMFRY-UHFFFAOYSA-N 2-[6-(oxiran-2-ylmethoxy)hexoxymethyl]oxirane Chemical compound C1OC1COCCCCCCOCC1CO1 WTYYGFLRBWMFRY-UHFFFAOYSA-N 0.000 description 1
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- 229920000945 Amylopectin Polymers 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002785 Croscarmellose sodium Polymers 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010021639 Incontinence Diseases 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- 229920000161 Locust bean gum Polymers 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- YBCVMFKXIKNREZ-UHFFFAOYSA-N acoh acetic acid Chemical compound CC(O)=O.CC(O)=O YBCVMFKXIKNREZ-UHFFFAOYSA-N 0.000 description 1
- 229920006322 acrylamide copolymer Polymers 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- AEMOLEFTQBMNLQ-ORELYVPDSA-N alpha-L-glucopyranuronic acid Chemical compound O[C@@H]1O[C@@H](C(O)=O)[C@H](O)[C@@H](O)[C@@H]1O AEMOLEFTQBMNLQ-ORELYVPDSA-N 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- XJMWHXZUIGHOBA-UHFFFAOYSA-N azane;propanoic acid Chemical compound N.CCC(O)=O XJMWHXZUIGHOBA-UHFFFAOYSA-N 0.000 description 1
- MNFORVFSTILPAW-UHFFFAOYSA-N azetidin-2-one Chemical compound O=C1CCN1 MNFORVFSTILPAW-UHFFFAOYSA-N 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical group 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000004181 carboxyalkyl group Chemical group 0.000 description 1
- 235000010418 carrageenan Nutrition 0.000 description 1
- 239000000679 carrageenan Substances 0.000 description 1
- 229920001525 carrageenan Polymers 0.000 description 1
- 229940113118 carrageenan Drugs 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 229920000591 gum Polymers 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 230000033444 hydroxylation Effects 0.000 description 1
- 238000005805 hydroxylation reaction Methods 0.000 description 1
- AEMOLEFTQBMNLQ-CLQWQSTFSA-N l-iduronic acid Chemical compound O[C@H]1O[C@H](C(O)=O)[C@H](O)[C@@H](O)[C@@H]1O AEMOLEFTQBMNLQ-CLQWQSTFSA-N 0.000 description 1
- 229940001447 lactate Drugs 0.000 description 1
- 235000010420 locust bean gum Nutrition 0.000 description 1
- 239000000711 locust bean gum Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- LUFUWJZCIDKWJV-UHFFFAOYSA-N methanol;oxirane Chemical compound OC.C1CO1 LUFUWJZCIDKWJV-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- BWILYWWHXDGKQA-UHFFFAOYSA-M potassium propanoate Chemical compound [K+].CCC([O-])=O BWILYWWHXDGKQA-UHFFFAOYSA-M 0.000 description 1
- 239000004331 potassium propionate Substances 0.000 description 1
- 235000010332 potassium propionate Nutrition 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 125000000075 primary alcohol group Chemical group 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 239000001540 sodium lactate Substances 0.000 description 1
- 229940005581 sodium lactate Drugs 0.000 description 1
- 235000011088 sodium lactate Nutrition 0.000 description 1
- JXKPEJDQGNYQSM-UHFFFAOYSA-M sodium propionate Chemical compound [Na+].CCC([O-])=O JXKPEJDQGNYQSM-UHFFFAOYSA-M 0.000 description 1
- 239000004324 sodium propionate Substances 0.000 description 1
- 235000010334 sodium propionate Nutrition 0.000 description 1
- 229960003212 sodium propionate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0033—Xanthan, i.e. D-glucose, D-mannose and D-glucuronic acid units, saubstituted with acetate and pyruvate, with a main chain of (beta-1,4)-D-glucose units; Derivatives thereof
-
- 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
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0045—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked D-galacturonic acid units, i.e. pectinic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0084—Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0087—Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e. L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from Acacia Senegal or Acacia Seyal; Derivatives thereof
- C08B37/0096—Guar, guar gum, guar flour, guaran, i.e. (beta-1,4) linked D-mannose units in the main chain branched with D-galactose units in (alpha-1,6), e.g. from Cyamopsis Tetragonolobus; Derivatives thereof
Definitions
- the present invention relates to an absorbent having excellent absorption performance for high-concentration saline and a method for producing the same. More specifically, the present invention relates to an absorbent obtained by reacting the surface of polysaccharide particles with a crosslinking agent, and a method for producing the same. Background art
- superabsorbent resins have been widely used in sanitary materials such as sanitary products, disposable diapers, and soil water retention agents.
- Such high water-absorbing resins for example, crosslinked polyacrylate, self-crosslinked polyacrylate, crosslinked starch-acrylate copolymer, vinyl alcohol-acrylate) Copolymers, hydrolysates of cross-linked acrylamide copolymers, neutralized cross-linked isoptylene-maleic anhydride copolymers, and cross-linked carboxymethyl cellulose salts are known.
- a method for solving this drawback for example, a method in which a polysaccharide containing peronic acid or a salt thereof as a structural unit is cross-linked and insolubilized by heating (Japanese Patent Application Laid-Open No. 56-51337), A method in which a polysaccharide containing the salt is dissolved in a large amount of a solvent and then a crosslinking agent and, if necessary, a water-soluble monomer are added and reacted, or a crosslinking agent and an etherifying agent after the polysaccharide is dissolved in a large amount of a solvent. Add and react water-soluble monomer if necessary A method (Japanese Patent Application Laid-Open No. 56-51838) has been proposed.
- the polysaccharide is dissolved in a large amount of solvent to carry out the crosslinking reaction, so that the inside of the polysaccharide is uniformly crosslinked.
- dilute saline such as saline
- salt water such as sludge containing seawater that is produced when excavating soil near the sea
- the absorption capacity is lowered for the absorption or gelation of water, and it cannot be used, or a large amount of water absorbing agent must be used.
- An object of the present invention is to provide an absorbent having excellent absorption performance against a high concentration of salt water and a method for producing the same. Disclosure of the invention
- the present invention provides an absorbent comprising a resin obtained by reacting the surface of a polysaccharide particle (A) with a crosslinking agent (B) having two or more functional groups capable of reacting with the polysaccharide particle (A). It is about.
- the present invention relates to a method for producing an absorbent by reacting the surface of a polysaccharide particle (A) with a crosslinking agent (B) having two or more functional groups capable of reacting with the polysaccharide particle (A).
- the polysaccharide particles characterized in that the polysaccharide particles (A) are treated with an aqueous solution of the crosslinking agent (B) and a water-soluble compound (C).
- the present invention relates to a method for producing an absorbent, wherein the surface of (A) is made of a resin crosslinked with a crosslinking agent (B).
- the polysaccharide particles (A) include, for example, alginic acid and the like. Or its salt, pectin, tragacanth gum, arabic gum, heparin, kisanthan gum, locust bean gum, guar gum, mannan, darco mannan, carrageenan, cellulose, amirose, and amylopectin.
- polysaccharides may have been subjected to a chemical treatment such as carboxyalkyl etherification (for example, carboxylmethylation) or hydroxyalkyl etherification (for example, hydroxylation).
- a chemical treatment such as carboxyalkyl etherification (for example, carboxylmethylation) or hydroxyalkyl etherification (for example, hydroxylation).
- an alkylene oxide for example, ethylene oxide and / or propylene oxide
- Two or more of the polysaccharide particles exemplified above may be used in combination.
- water-soluble polysaccharides having a peronic acid group and Z or a salt thereof group are preferable because they can obtain a high absorption capacity with respect to high-concentration saline, and particularly preferable are pectin and xanthan gum. It is.
- the peronic acid group is one in which an aldehyde group or a primary alcohol group of a monosaccharide is oxidized to a carboxyl group. Therefore, the fact that the carboxyl group is directly bonded to the sugar skeleton is significantly different from carboxymethylated polysaccharides such as CMC (carboxymethylcellulose) in terms of both structure and salt resistance.
- CMC carboxymethylated polysaccharides
- Examples of such a saccharide unit having a peronic acid group include ⁇ - ⁇ -gelcuronic acid, ⁇ -L-glucuronic acid, aD-mannuronic acid, aD-galacturonic acid, and Hiichi L-iduronic acid and 4-0-methyl-D-dalc oxalic acid.
- Examples of the salt of peronic acid include alkali metal salts (such as sodium salts and potassium salts), ammonium salts, and amine salts (such as alkylamines having a total alkyl group of 1 to 12 carbon atoms, and carbon atoms of alkanol groups). Alkanolamines having a total of 1 to 12). Of these salts preferred Those are alkali metal salts.
- the shape of the polysaccharide particles (A) is not particularly limited, and examples thereof include a pearl shape, a flake shape, a lump shape, an amorphous shape, a powder shape, and the like. Although there is no particular limitation on the particle size, it is usually about 10 to 1,000 micron.
- the crosslinking agent (B) is a compound having two or more functional groups capable of reacting with the polysaccharide particles (A), for example, a functional group capable of reacting with a carboxyl group or a Z and a hydroxyl group.
- a functional group capable of reacting with a carboxyl group or a Z and a hydroxyl group for example, a compound having two or more of these, and if such a compound can be used without any particular limitation, a water-soluble crosslinking agent is particularly preferably used.
- crosslinking agent (B) examples include polyglycidyl ether compounds, haloepoxy compounds, polyaldehyde compounds, polyhydric alcohol compounds, polyamine compounds and polyisocyanate compounds. Two or more kinds may be used in combination.
- polyglycidyl ether compound examples include ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, glycerin-1,3-diglycidyl ether, glycerin triglycidyl ether, and polyethylene glycol diglycol.
- haloepoxy compound examples include epichlorohydrin, 1-methylepiclorhydrin, and the like.
- polyaldehyde compound examples include Daltar aldehyde, Glyoxal and the like.
- polyhydric alcohol compounds include glycerin, ethylene glycol, diethylene glycol, propylene glycol, polyethylene glycol, polypropylene glycol, diethanolamine, and triglycol. Ethanolamine and the like can be mentioned.
- polyamine-based compounds include ethylenediamine, ethylenediamine, triethylenetetramine, tetraethylenepentamine, polyamide which is a reaction product of polyamine and an aliphatic polybasic acid. Resin, polyamide polyamine picochlorhydrin resin and the like.
- polyisocyanate-based compound examples include tolylene diisocyanate, hexamethylene diisocyanate, and the like.
- Preferred examples of the crosslinking agent (B) include polyglycidyl ether compounds, polyhydric alcohol compounds, and polyamine compounds. More preferred are ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, and glycerin-1,3-diglycidyl ether because of their low reaction temperature and economical energy cost. And glycerin triglycidyl ether and polyamide boria minepiclorhydrin resin.
- the amount of the cross-linking agent (B) used depends on the type of the polysaccharide particles (A) and the cross-linking agent (B), the performance target of the obtained absorbent, and the like.
- B) (weight ratio) It is strong, usually in the range of 100: (0.01-5), preferably 100: (0.05-3), particularly preferably 100: (0.1-2). If the ratio of (B) is less than 0.01, the crosslinking effect is not sufficiently exhibited, and if it exceeds 5, the crosslinking density becomes excessively large and the absorption performance is reduced.
- the absorbent of the present invention needs to have a structure in which the vicinity of the surface of the polysaccharide particles (A) is crosslinked to reduce the number of crosslinks inside the polysaccharide particles (A). Therefore, in the method for producing an absorbent of the present invention, it is preferable to carry out crosslinking in the presence of the water-soluble compound (C).
- the water-soluble compound (C) is an alkylene of a monohydric alcohol.
- A a monovalent salt of an organic acid (b), a lactam (c), a monohydric alcohol (d) and a ketone (e), and
- A One or more water-soluble compounds which are substantially inert to (B).
- alkylene oxide adduct of a monohydric alcohol examples include, for example, an ethylene oxide adduct of methanol, an ethylene oxide adduct of ethanol, an ethylene oxide adduct of butyl alcohol, and a propylene adduct of methanol.
- the monohydric alcohol preferably has 1 to 5 carbon atoms, and the alkylene group of the alkylene oxide preferably has 2 to 4 carbon atoms.
- Examples of the monovalent salt of an organic acid (b) include an alkali metal salt, an ammonium salt, and an ammonium salt of an organic acid, such as sodium acetate, acetate acetic acid, ammonium acetate, and propionic acid. Examples include sodium, potassium propionate, ammonium propionate, sodium lactate and lactate.
- the organic acid a monobasic acid having 2 to 6 carbon atoms is preferable.
- the monovalent salt means that the cation constituting the salt is a salt composed of a monovalent cation.
- lactams (c) examples include propiolactam, aptirolactam, norelolactam, and —-prolactam.
- the lactams are preferably those having 3 to 9 carbon atoms.
- Examples of the monohydric alcohol (d) include monohydric alcohols having 1 to 4 carbon atoms, for example, methanol, ethanol, and isopropanol.
- Ketones (e) include ketones having 1 to 5 carbon atoms, for example, acetone and methylethylketone.
- water-soluble compound (C) As described above, preferred examples of the water-soluble compound (C) are as follows.
- the concentration of the aqueous solution of the water-soluble compound (C) can be variously changed depending on the type of the water-soluble compound (C), and is usually 5 to 95% by weight, preferably 10 to 90% by weight. Is within the range. However, when an alkylene oxide adduct of a monohydric alcohol (a) is used as (C), 10 to 40% by weight is used. As (C), a monovalent salt of an organic acid (b) or a lactam is used. 5 to 35% by weight when (c) is used, 50 to 95% by weight when (d) is a monovalent alcohol (d), and ketones (e) as (C) Is particularly preferably within the range of 0.35 to 80% by weight.
- the concentration exceeds 95% by weight, it must be treated with a large amount of the aqueous solution (C) in order to secure the amount of water required for the crosslinking reaction between (A) and (B), which is uneconomical. It is a target.
- the amount of the aqueous solution of the water-soluble compound (C) used for the polysaccharide particles (A) can be variously changed depending on the type and concentration of (C) and the type and amount of the crosslinking agent (B).
- (C) When the ratio of the aqueous solution is less than 1, it is difficult to make the crosslinking reaction homogeneous.
- a mixed solution of the aqueous solution of (C) and (B) is sprayed on (A). It is common practice to mix the solution (C) and the solution (B) without adding them beforehand, but to add them simultaneously to (A) or separately. It is possible.
- the apparatus used for mixing the aqueous solution (A), (C) and (B) may be a conventional mixer, for example, a cylindrical mixer, a screw-type mixer, a screw-type extruder, a turbulizer, Nauta-type mixers, V-type mixers, ribbon-type mixers, double-arm kneaders, flow-type mixers, airflow-type mixers, rotating disk-type mixers, and roll mixers.
- a conventional mixer for example, a cylindrical mixer, a screw-type mixer, a screw-type extruder, a turbulizer, Nauta-type mixers, V-type mixers, ribbon-type mixers, double-arm kneaders, flow-type mixers, airflow-type mixers, rotating disk-type mixers, and roll mixers.
- the reaction is a reaction in which the surface of the polysaccharide particles (A) is cross-linked by the cross-linking agent (B).
- a dryer or a heater such as a flash dryer, a rotary dryer, a paddle dryer, a disk dryer, a fluidized bed dryer, a belt dryer, a Now Yui heater, or an infrared dryer is used.
- a flash dryer a rotary dryer, a paddle dryer, a disk dryer, a fluidized bed dryer, a belt dryer, a Now Yui heater, or an infrared dryer.
- the temperature for the heat treatment varies depending on the type and amount of (B) and the amount of water in the aqueous solution (C), but is usually 80 to 230 ° C, preferably 100 to 210 ° C.
- use ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, glycerin-1,3-diglycidyl ether, glycerin triglycidyl ether, polyamidopolyamineepiclorhydrin resin, etc. as the crosslinking agent.
- heat treatment can be performed at a relatively low temperature of 100 to 180 ° C. Wear.
- the heating time varies depending on the type and amount of (B) used, the amount of water in the aqueous solution of the water-soluble compound (C), the heating temperature, etc., but is usually at least 2 minutes, preferably 5 to 60 minutes. . If the time is less than 2 minutes, it is often not economical because the heat treatment temperature needs to be raised in many cases, and it may not be economical. Depending on the type and amount of (B), the effect of the present invention is sufficient. The crosslinking reaction does not proceed up to.
- the heat treatment may be performed in a vacuum or under an inert gas atmosphere, if necessary.
- inert gases include nitrogen, helium, carbon dioxide, and the like.
- the absorption characteristics of the absorbent obtained by the method of the present invention can be controlled depending on the purpose of use, but the absorption capacity with respect to a 5% by weight saline solution is usually 40 times or more, preferably 45 times or more.
- the amount used can be smaller than that of the conventional absorbent, the bulk is not increased, and the cost can be reduced. .
- the absorbent obtained by the method of the present invention can be used at any stage, if necessary, as a preservative, a fungicide, a bactericide, an antioxidant, an ultraviolet absorber, a coloring agent, a fragrance, a deodorant, an inorganic powder, and an organic fiber.
- a substance or the like can be added.
- the absorption capacity was measured by the following method. In the following, “part” indicates “part by weight” and “%” indicates “% by weight”. Absorption capacity:
- Xanthan gum 100 parts was placed in a mixer having a capacity of 2,000 ml and stirring was continued, and methanol was used as a water-soluble compound (C).
- Ethylene glycol diglycidyl ether 2 was added to an 80% aqueous solution of methanol.
- 4 parts of an aqueous solution of a crosslinking agent in which .5% (0.1% of xanthan gum) was dissolved was added and mixed well.
- the obtained mixture was heat-treated at 140 ° C. for about 20 minutes to obtain an absorbent (1).
- the absorption capacity of the obtained absorbent (1) was measured, and the results are shown in Table 1.
- guar gum was used for the absorbent (4).
- Polyamide boriaminepiclorhydrin resin was used for the absorbent (9), and triethylenetetramine was used for the absorbent (10).
- An absorbent (11) was obtained in the same manner as in Example 1 except that 4 parts of the aqueous crosslinking agent solution in Example 1 was changed to 8 parts. The absorption capacity of the absorbent (11) was measured, and the results are shown in Table 1.
- Table 1 shows the measurement results of the absorption capacity of the comparative absorbent (1).
- Comparative Example 2 Add and dissolve 50 g of pectin in 200 ml of water, then add 0.05 g of ethylene glycol diglycidyl ether (0.1% relative to pectin), and stir at 40 ° C for 2 hours. Reacted. The reaction product was dried under reduced pressure at 80 ° C. for 5 hours and pulverized to obtain a comparative absorbent (2) uniformly crosslinked to the inside of the particles.
- Table 1 shows the measurement results of the absorption capacity of the comparative absorbent (2).
- Xanthan gum 50 g was dissolved in water (500 m 1) and heated at 150 ° C. for 2 hours in a circulating drier to insolubilize it to obtain a comparative absorbent (3).
- the absorbent of the present invention has the following characteristics.
- the method for producing an absorbent of the present invention has the following effects.
- the cross-linking agent is treated in the form of an aqueous solution, the cross-linking agent does not penetrate into the polysaccharide particles due to the presence of the water-soluble compound, so that the cross-linking agent concentration on the surface of the particles increases. As a result, the vicinity of the surface of the particles can be uniformly and efficiently crosslinked.
- the absorbent of the present invention can be used for absorbing urine and blood such as sanitary materials (such as disposable diapers, sanitary napkins and incontinent pads); Coagulation of hydrates containing high concentrations of electrolytes Uses of chemicals: Sealing materials for civil engineering that require high swelling power even in seawater and hard water, applications such as anti-sedimentation agents for the shield d method and waterproofing agents for submarine cables Curing after placing concrete It can be used for a wide range of industrial applications, such as materials and concrete admixtures; absorbents for high-concentration salt solutions such as disposable chisels and desiccants based on calcium chloride.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Emergency Medicine (AREA)
- Epidemiology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Analytical Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Biological Depolymerization Polymers (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93923045A EP0670180A4 (en) | 1992-11-18 | 1993-10-21 | SALT RESISTANT ABSORBENT AND METHOD FOR THE PRODUCTION THEREOF. |
US08/436,177 US5811531A (en) | 1992-11-18 | 1995-05-09 | Absorbent with stability against salts and process for production thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4333684A JPH06154596A (ja) | 1992-11-18 | 1992-11-18 | 耐塩安定性吸収剤及びその製法 |
JP4/333684 | 1992-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994011102A1 true WO1994011102A1 (en) | 1994-05-26 |
Family
ID=18268814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/001526 WO1994011102A1 (en) | 1992-11-18 | 1993-10-21 | Salt-resistant absorbent and process for producing the same |
Country Status (4)
Country | Link |
---|---|
US (1) | US5811531A (ja) |
EP (1) | EP0670180A4 (ja) |
JP (1) | JPH06154596A (ja) |
WO (1) | WO1994011102A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19654745C5 (de) * | 1996-12-30 | 2004-01-22 | Lechner, M.D., Prof. Dr. | Biologisch abbaubares Absorptionsmittel, dessen Herstellung und Verwendung |
SE517075C2 (sv) * | 1998-10-09 | 2002-04-09 | Sca Hygiene Prod Ab | Polysackaridbaserat absorberande polymermaterial |
IT1303735B1 (it) * | 1998-11-11 | 2001-02-23 | Falorni Italia Farmaceutici S | Acidi ialuronici reticolati e loro usi medici. |
DE10125599A1 (de) | 2001-05-25 | 2002-11-28 | Stockhausen Chem Fab Gmbh | Superabsorber, Verfahren zu ihrer Herstellung und ihre Verwendung |
DE10343413A1 (de) * | 2003-09-19 | 2005-04-14 | Universität Hamburg | Vernetzte, langzeitstabile Carboxymethylstärke als Absorptionsmittel für Wasser, deren Verwendung sowie Verfahren zu deren Herstellung |
JP2006016519A (ja) * | 2004-07-02 | 2006-01-19 | Toppan Printing Co Ltd | 架橋重合体及びその製造方法 |
DE102005020552A1 (de) * | 2005-05-03 | 2006-11-09 | Degussa Ag | Verfahren zur chemischen Modifizierung von Polysacchariden |
JP2008239830A (ja) * | 2007-03-28 | 2008-10-09 | Toppan Printing Co Ltd | 水系コーティング組成物、複合シート、化粧シート、化粧材 |
EP1992364A1 (en) * | 2007-05-16 | 2008-11-19 | Biosuma S.r.l. | Carboxylated polysaccharides phosphated or bisphosphonated derivatives, optionally cross-linked, and their preparation and biomedical uses |
US10012079B2 (en) * | 2007-11-19 | 2018-07-03 | Amcol International Corporation | Self healing salt water barrier |
US10016954B2 (en) * | 2007-11-19 | 2018-07-10 | Amcol International Corporation | Self healing salt water barrier |
CN104888264B (zh) | 2008-01-14 | 2018-01-09 | 北京环球利康科技有限公司 | 生物相容性止血、防粘连、促愈合、外科封闭的变性淀粉材料 |
JP5441532B2 (ja) * | 2009-07-13 | 2014-03-12 | ユニ・チャーム株式会社 | 吸収体及び吸収性物品 |
ES2585334T3 (es) | 2011-03-31 | 2016-10-05 | Amcol International Corporation | Barrera autorreparadora contra el agua salada |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5844018B2 (ja) * | 1979-06-27 | 1983-09-30 | 三洋化成工業株式会社 | 吸水剤 |
JPH0117411B2 (ja) * | 1984-07-02 | 1989-03-30 | Nippon Shokubai Kagaku Kogyo Kk |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51125468A (en) * | 1975-03-27 | 1976-11-01 | Sanyo Chem Ind Ltd | Method of preparing resins of high water absorbency |
US4051086A (en) * | 1976-03-25 | 1977-09-27 | Hercules Incorporated | Absorption rate of absorbent polymers by treating with glyoxal |
JPS565137A (en) * | 1979-06-27 | 1981-01-20 | Sanyo Chem Ind Ltd | Water absorbing agent with excellent stability against salt |
JPS5844018A (ja) * | 1982-08-23 | 1983-03-14 | 東芝テック株式会社 | 電気掃除機 |
US4734478A (en) * | 1984-07-02 | 1988-03-29 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Water absorbing agent |
JPS6194655A (ja) * | 1984-10-15 | 1986-05-13 | 宮田 奈美子 | 耐塩水性のすぐれた吸水材料 |
JPS6417411A (en) * | 1987-07-10 | 1989-01-20 | Nippon Denki Home Electronics | Magnetic thin film |
EP0454497B1 (en) * | 1990-04-27 | 1997-02-26 | Nippon Shokubai Co., Ltd. | Method for production of salt-resistant absorbent resin |
CA2072918A1 (en) * | 1992-02-14 | 1993-08-15 | Jian Qin | Modified polysaccharides having improved absorbent properties and process for the preparation thereof |
-
1992
- 1992-11-18 JP JP4333684A patent/JPH06154596A/ja active Pending
-
1993
- 1993-10-21 EP EP93923045A patent/EP0670180A4/en not_active Ceased
- 1993-10-21 WO PCT/JP1993/001526 patent/WO1994011102A1/ja not_active Application Discontinuation
-
1995
- 1995-05-09 US US08/436,177 patent/US5811531A/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5844018B2 (ja) * | 1979-06-27 | 1983-09-30 | 三洋化成工業株式会社 | 吸水剤 |
JPH0117411B2 (ja) * | 1984-07-02 | 1989-03-30 | Nippon Shokubai Kagaku Kogyo Kk |
Also Published As
Publication number | Publication date |
---|---|
EP0670180A4 (en) | 1996-02-28 |
US5811531A (en) | 1998-09-22 |
JPH06154596A (ja) | 1994-06-03 |
EP0670180A1 (en) | 1995-09-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1994011102A1 (en) | Salt-resistant absorbent and process for producing the same | |
JP5342726B2 (ja) | 水性液体および血液を吸収する粉末状の架橋吸収性ポリマー、その製造方法および使用 | |
TWI304407B (en) | Superabsorbents, preparation thereof and use thereof | |
US5322896A (en) | Process for producing improved water absorbing resin and resin made by the same | |
JP2012097276A (ja) | 水性液体および血液を吸収する粉末状の架橋吸収性ポリマー、その製造方法および使用 | |
JP2001002703A (ja) | 自己架橋型アルキルセルロース誘導体、及びそれらの製造方法 | |
JP2006328346A (ja) | 生分解性吸水性材料とその製造方法および該生分解性吸水性材料からなる堆肥化助剤 | |
JPH06200046A (ja) | 改質された高吸水性樹脂の製法および樹脂 | |
WO2022211005A1 (ja) | 吸水性樹脂 | |
WO2022211002A1 (ja) | 吸水性樹脂 | |
WO2022211000A1 (ja) | 水溶性ポリマーの製造方法、および吸水性樹脂の製造方法 | |
WO2003106551A1 (ja) | 吸水性樹脂およびその製造方法 | |
JPH08196901A (ja) | 吸水材およびその製造方法 | |
JP4067330B2 (ja) | 架橋構造を有する高吸水性樹脂を主成分とする吸水剤、およびその製造方法、並びにこれを用いた衛生材料 | |
WO2024029246A1 (ja) | 吸収性物品 | |
WO2001049803A1 (en) | Products for controlling evaporative moisture loss and methods of manufacturing the same | |
JP2004359916A (ja) | 有機溶剤吸収ゲル成形体及びその製造方法 | |
JP2003321574A (ja) | 吸水性ポリマーの分解剤とこれを用いる吸水性ポリマーの分解方法 | |
JPH0733818A (ja) | 改質された高吸水性樹脂の製法および樹脂 | |
WO2023190875A1 (ja) | 吸水性樹脂の製造方法 | |
US7208593B2 (en) | Self-cross-linked alkyl cellulose | |
JP7125216B1 (ja) | 水溶性ポリマーの製造方法、および吸水性樹脂の製造方法 | |
TW202421670A (zh) | 吸收性物品 | |
KR102584470B1 (ko) | 가압흡수성이 우수한 생분해성 기반의 고흡수성 수지 및 그의 제조방법 | |
JPH0717758B2 (ja) | 高吸水性樹脂の製法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 08436177 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1993923045 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1993923045 Country of ref document: EP |
|
WWR | Wipo information: refused in national office |
Ref document number: 1993923045 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1993923045 Country of ref document: EP |