JPS6143366B2 - - Google Patents
Info
- Publication number
- JPS6143366B2 JPS6143366B2 JP52015416A JP1541677A JPS6143366B2 JP S6143366 B2 JPS6143366 B2 JP S6143366B2 JP 52015416 A JP52015416 A JP 52015416A JP 1541677 A JP1541677 A JP 1541677A JP S6143366 B2 JPS6143366 B2 JP S6143366B2
- Authority
- JP
- Japan
- Prior art keywords
- starch
- water
- saponification
- crosslinking
- graft copolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 229920002472 Starch Polymers 0.000 claims description 26
- 235000019698 starch Nutrition 0.000 claims description 25
- 239000008107 starch Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 21
- 229920000578 graft copolymer Polymers 0.000 claims description 20
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 19
- 238000004132 cross linking Methods 0.000 claims description 17
- 238000007127 saponification reaction Methods 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 9
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000003431 cross linking reagent Substances 0.000 claims description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 4
- 239000003518 caustics Substances 0.000 claims description 3
- AZSFNUJOCKMOGB-UHFFFAOYSA-K cyclotriphosphate(3-) Chemical compound [O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 AZSFNUJOCKMOGB-UHFFFAOYSA-K 0.000 claims description 2
- AFOSIXZFDONLBT-UHFFFAOYSA-N divinyl sulfone Chemical compound C=CS(=O)(=O)C=C AFOSIXZFDONLBT-UHFFFAOYSA-N 0.000 claims description 2
- 239000012046 mixed solvent Substances 0.000 claims description 2
- 125000003158 alcohol group Chemical group 0.000 claims 1
- 125000005442 diisocyanate group Chemical group 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 12
- 239000004382 Amylase Substances 0.000 description 11
- 102000013142 Amylases Human genes 0.000 description 11
- 108010065511 Amylases Proteins 0.000 description 11
- 235000019418 amylase Nutrition 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000002250 absorbent Substances 0.000 description 6
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 5
- 229920002261 Corn starch Polymers 0.000 description 5
- 239000008120 corn starch Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- -1 carboxylate salts Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 244000017020 Ipomoea batatas Species 0.000 description 2
- 235000002678 Ipomoea batatas Nutrition 0.000 description 2
- 240000003183 Manihot esculenta Species 0.000 description 2
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 102000004139 alpha-Amylases Human genes 0.000 description 2
- 108090000637 alpha-Amylases Proteins 0.000 description 2
- 229940024171 alpha-amylase Drugs 0.000 description 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 2
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical compound [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229940088598 enzyme Drugs 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000002175 menstrual effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001592 potato starch Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229920000856 Amylose Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 125000000278 alkyl amino alkyl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 125000004966 cyanoalkyl group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229930182478 glucoside Natural products 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000004964 sulfoalkyl group Chemical group 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Graft Or Block Polymers (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1541677A JPS5399291A (en) | 1977-02-14 | 1977-02-14 | Process for producing highly gelled waterrabsorptive powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1541677A JPS5399291A (en) | 1977-02-14 | 1977-02-14 | Process for producing highly gelled waterrabsorptive powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5399291A JPS5399291A (en) | 1978-08-30 |
| JPS6143366B2 true JPS6143366B2 (enrdf_load_stackoverflow) | 1986-09-27 |
Family
ID=11888141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1541677A Granted JPS5399291A (en) | 1977-02-14 | 1977-02-14 | Process for producing highly gelled waterrabsorptive powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5399291A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2901480B2 (ja) * | 1994-02-17 | 1999-06-07 | 株式会社日本触媒 | 吸水性樹脂およびその製造方法 |
| US6800712B2 (en) * | 2002-10-07 | 2004-10-05 | Steven William Doane | Starch graft copolymers and method of making and using starch graft copolymers for agriculture |
| ES2722627T3 (es) * | 2003-12-15 | 2019-08-14 | Vjs Investments Ltd | Producto de polímero superabsorbente que incluye un aditivo bioactivo promotor del crecimiento |
-
1977
- 1977-02-14 JP JP1541677A patent/JPS5399291A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5399291A (en) | 1978-08-30 |
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