DE2753214A1 - Sehr absorptionsfaehige polymere zusammensetzungen aus polyhydroxypolymer- pfropfcopolymeren - Google Patents
Sehr absorptionsfaehige polymere zusammensetzungen aus polyhydroxypolymer- pfropfcopolymerenInfo
- Publication number
- DE2753214A1 DE2753214A1 DE19772753214 DE2753214A DE2753214A1 DE 2753214 A1 DE2753214 A1 DE 2753214A1 DE 19772753214 DE19772753214 DE 19772753214 DE 2753214 A DE2753214 A DE 2753214A DE 2753214 A1 DE2753214 A1 DE 2753214A1
- Authority
- DE
- Germany
- Prior art keywords
- monomer
- water
- starch
- acrylonitrile
- polymer
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims description 73
- 229920000642 polymer Polymers 0.000 title claims description 44
- 229920000578 graft copolymer Polymers 0.000 claims description 51
- 229920002472 Starch Polymers 0.000 claims description 46
- 239000008107 starch Substances 0.000 claims description 46
- 235000019698 starch Nutrition 0.000 claims description 46
- 238000007127 saponification reaction Methods 0.000 claims description 43
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 34
- 239000000178 monomer Substances 0.000 claims description 26
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 20
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical group COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 14
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 claims description 4
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical group OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 claims description 4
- 238000010559 graft polymerization reaction Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 150000003857 carboxamides Chemical class 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims 2
- 150000007942 carboxylates Chemical group 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 80
- 230000002745 absorbent Effects 0.000 description 41
- 239000002250 absorbent Substances 0.000 description 41
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 229920002239 polyacrylonitrile Polymers 0.000 description 21
- 210000002700 urine Anatomy 0.000 description 18
- 239000000047 product Substances 0.000 description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 14
- 239000010408 film Substances 0.000 description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 12
- 239000006185 dispersion Substances 0.000 description 12
- 230000009102 absorption Effects 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 6
- 239000000499 gel Substances 0.000 description 6
- 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 5
- 238000001035 drying Methods 0.000 description 5
- 235000013312 flour Nutrition 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 240000008042 Zea mays Species 0.000 description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 4
- 235000005822 corn Nutrition 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229920002261 Corn starch Polymers 0.000 description 3
- 241000364057 Peoria Species 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 3
- -1 alkali metal salts Chemical class 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000008120 corn starch Substances 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- XXZCIYUJYUESMD-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-3-(morpholin-4-ylmethyl)pyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2)CN1CCOCC1 XXZCIYUJYUESMD-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 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
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- AOFSUBOXJFKGAZ-UHFFFAOYSA-O azanium nitric acid nitrate Chemical compound [NH4+].O[N+]([O-])=O.[O-][N+]([O-])=O AOFSUBOXJFKGAZ-UHFFFAOYSA-O 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- MGZTXXNFBIUONY-UHFFFAOYSA-L hydrogen peroxide iron(2+) sulfate Chemical compound [Fe++].OO.[O-]S([O-])(=O)=O MGZTXXNFBIUONY-UHFFFAOYSA-L 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002825 nitriles Chemical group 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 235000020183 skimmed milk Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/12—Hydrolysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S524/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S524/916—Hydrogel compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/748,032 US4134863A (en) | 1976-12-06 | 1976-12-06 | Highly absorbent graft copolymers of polyhydroxy polymers, acrylonitrile, and acrylic comonomers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2753214A1 true DE2753214A1 (de) | 1978-06-08 |
Family
ID=25007691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772753214 Withdrawn DE2753214A1 (de) | 1976-12-06 | 1977-11-29 | Sehr absorptionsfaehige polymere zusammensetzungen aus polyhydroxypolymer- pfropfcopolymeren |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US4134863A (OSRAM) |
| JP (1) | JPS5377296A (OSRAM) |
| AU (1) | AU511614B2 (OSRAM) |
| BE (1) | BE861400A (OSRAM) |
| BR (1) | BR7708027A (OSRAM) |
| CA (1) | CA1109052A (OSRAM) |
| CH (1) | CH625136A5 (OSRAM) |
| DE (1) | DE2753214A1 (OSRAM) |
| ES (1) | ES464767A1 (OSRAM) |
| FR (1) | FR2372849A1 (OSRAM) |
| GB (1) | GB1569481A (OSRAM) |
| IL (1) | IL53538A (OSRAM) |
| IN (1) | IN147644B (OSRAM) |
| IT (1) | IT1112105B (OSRAM) |
| NL (1) | NL7713471A (OSRAM) |
| PH (1) | PH13721A (OSRAM) |
| SE (1) | SE432104B (OSRAM) |
| ZA (1) | ZA776986B (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3613207A1 (de) * | 1986-04-18 | 1987-10-22 | Akzo Gmbh | Mit wasser quellbare zusammensetzung, ihre herstellung und verwendung |
Families Citing this family (52)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4194998A (en) * | 1976-12-06 | 1980-03-25 | The United States Of America As Represented By The Secretary Of Agriculture | Highly absorbent polyhydroxy polymer graft copolymers without saponification |
| US4242242A (en) * | 1977-06-10 | 1980-12-30 | Akzona Incorporated | Highly absorbent fibers of rayon with sulfonic acid polymer incorporated |
| US4224156A (en) * | 1978-11-09 | 1980-09-23 | Nalco Chemical Company | Weir skimmer |
| US4221684A (en) * | 1978-12-18 | 1980-09-09 | Illinois Cereal Mills | Absorbent polymeric compositions derived from corn flour and starch |
| US4300561A (en) * | 1979-10-22 | 1981-11-17 | Kimberly-Clark Corporation | Easily removable tampon |
| US4377167A (en) * | 1979-10-22 | 1983-03-22 | Kimberly-Clark Corporation | Easily removable tampon |
| US4323487A (en) * | 1979-10-22 | 1982-04-06 | Henkel Corporation | Absorbent starch graft polymer and method of its preparation |
| US4410571A (en) * | 1980-08-25 | 1983-10-18 | Johnson & Johnson | Absorbent products, process and compositions for immobilization of particulate absorbents |
| GR75732B (OSRAM) * | 1980-08-25 | 1984-08-02 | Johnson & Johnson | |
| US4454055A (en) * | 1980-08-25 | 1984-06-12 | National Starch And Chemical Corporation | Absorbent composition of matter, process for preparing same and article prepared therefrom |
| US4374647A (en) * | 1981-06-25 | 1983-02-22 | Chevron Research Company | Oxygenated fuel dehydration |
| US5720832A (en) * | 1981-11-24 | 1998-02-24 | Kimberly-Clark Ltd. | Method of making a meltblown nonwoven web containing absorbent particles |
| US4410679A (en) * | 1981-12-28 | 1983-10-18 | Ford Motor Company | Coating composition comprising chain-extendable crosslinkable polyol and diblocked diisocyanate diurethane oligomer |
| US4623560A (en) * | 1982-09-02 | 1986-11-18 | Central Illinois Manufacturing Co. | Method of making water removing filter media |
| US4604205A (en) * | 1982-09-02 | 1986-08-05 | Central Illinois Manufacturing Company | Water removing filter media |
| US4663163A (en) * | 1983-02-14 | 1987-05-05 | Hou Kenneth C | Modified polysaccharide supports |
| BR8405354A (pt) * | 1983-02-14 | 1985-02-12 | Amf Inc | Suportes polissacaridicos modificados |
| GB8415188D0 (en) * | 1984-06-14 | 1984-07-18 | Geistlich Soehne Ag | Absorbent polymer material |
| US4679571A (en) * | 1984-08-31 | 1987-07-14 | Becton, Dickinson And Company | Blood sample needle assembly with vein indicator |
| JPS61231548A (ja) * | 1985-04-05 | 1986-10-15 | Konishiroku Photo Ind Co Ltd | 写真廃液の処理方法及び写真自動現像機 |
| AU590515B2 (en) * | 1985-04-15 | 1989-11-09 | Dow Chemical Company, The | A process for absorbing water having a ph less than four |
| US4511477A (en) * | 1985-04-15 | 1985-04-16 | The Dow Chemical Company | Process of using water-absorbent agents for low pH applications |
| US4818534A (en) * | 1987-04-01 | 1989-04-04 | Lee County Mosquito Control District | Insecticidal delivery compositions and methods for controlling a population of insects in an aquatic environment |
| US4985251A (en) * | 1987-04-01 | 1991-01-15 | Lee County Mosquito Control District | Flowable insecticidal delivery compositions and methods for controlling insect populations in an aquatic environment |
| US4983389A (en) * | 1987-04-01 | 1991-01-08 | Lee County Mosquito Control District | Herbicidal delivery compositions and methods for controlling plant populations in aquatic and wetland environments |
| US4983390A (en) * | 1987-04-01 | 1991-01-08 | Lee County Mosquito Control District | Terrestrial delivery compositions and methods for controlling insect and habitat-associated pest populations in terrestrial environments |
| US4845035A (en) * | 1987-10-06 | 1989-07-04 | The United States Of America As Represented By The Secretary Of Agriculture | Enzyme immobilization with a hydrolyzed polysaccharide graft copolymer |
| US5258429A (en) * | 1989-09-05 | 1993-11-02 | Wolff Walsrode Ag | Cellulose ether compositions for aqueous media |
| US5505718A (en) * | 1990-04-02 | 1996-04-09 | The Procter & Gamble Company | Absorbent structures containing specific particle size distributions of superabsorbent hydrogel-forming materials |
| US5419956A (en) * | 1991-04-12 | 1995-05-30 | The Procter & Gamble Company | Absorbent structures containing specific particle size distributions of superabsorbent hydrogel-forming materials mixed with inorganic powders |
| US5422169A (en) * | 1991-04-12 | 1995-06-06 | The Procter & Gamble Company | Absorbent structures containing specific particle size distributions of superabsorbent hydrogel-forming materials in relatively high concentrations |
| US5274018A (en) * | 1991-05-24 | 1993-12-28 | Massachusetts Institute Of Technology | Salt tolerant super absorbents |
| JP3382632B2 (ja) * | 1992-03-13 | 2003-03-04 | オリンパス光学工業株式会社 | 生体関連物質の測定方法およびそれに用いる反応容器 |
| FI95917C (fi) * | 1992-04-16 | 1996-04-10 | Raision Tehtaat Oy Ab | Paksuntava dispersio ja sen käyttö |
| US5677374A (en) * | 1992-04-16 | 1997-10-14 | Raisio Chemicals Oy | Thickening agent comprising aqueous dispersion of graft-copolymerized starch |
| US5258123A (en) * | 1992-07-02 | 1993-11-02 | Exxon Production Research Company | Process for dewatering an aqueous solution containing solids using water-absorbent substances |
| US5679364A (en) * | 1995-06-07 | 1997-10-21 | Lee County Mosquito Control District | Compositions and methods for reducing the amount of contaminants in aquatic and terrestrial environments |
| US5885602A (en) * | 1997-05-27 | 1999-03-23 | Lee County Mosquito Control District | Process for the persistence control of chemicals released into the environment |
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| US20040120990A1 (en) * | 2002-08-12 | 2004-06-24 | Cushman John C. | Absorbent proteins and methods for using same |
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| TR201905649T4 (tr) * | 2003-12-15 | 2019-05-21 | Vjs Investments Ltd | Biyoaktif, büyüme destekleyici bir katkı maddesi içeren bir süper absorban polimer ürünü. |
| CA2576967A1 (en) * | 2004-08-27 | 2006-03-09 | Absorbent Technologies, Inc. | Superabsorbent polymers in agricultural applications |
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| US9596801B2 (en) | 2010-10-25 | 2017-03-21 | Vjs Investments Limited | Superabsorbent polymer seed coatings and associated methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2528555A1 (de) * | 1974-06-26 | 1976-01-15 | Pulp Paper Res Inst | Verfahren zur herstellung eines modifizierten cellulosematerials |
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|---|---|---|---|---|
| US3455853A (en) * | 1964-03-09 | 1969-07-15 | Union Oil Co | Method for preparing polysaccharide graft copolymers |
| US3457198A (en) * | 1967-03-15 | 1969-07-22 | Itt Rayonier Inc | Graft polymerization of acrylic acidester mixtures to cellulose |
| JPS5247044B1 (OSRAM) * | 1970-12-26 | 1977-11-30 | ||
| US3770673A (en) * | 1971-11-04 | 1973-11-06 | R Slagel | Chitosan graft copolymer for making paper products of improved dry strength |
| US3826767A (en) * | 1972-01-26 | 1974-07-30 | Calgon Corp | Anionic dextran graft copolymers |
| DE2309368C3 (de) * | 1973-02-24 | 1984-09-27 | Bayer Ag, 5090 Leverkusen | Kontinuierliches Verfahren zur Herstellung von Copolymerisat-Dispersionen |
| US3889678A (en) * | 1973-12-07 | 1975-06-17 | Personal Products Co | Cellulose graft copolymer containing non-ionic and ionic polymer moieties as absorbent media in absorbent dressings |
| US3997484A (en) * | 1974-04-03 | 1976-12-14 | The United States Of America As Represented By The Secretary Of Agriculture | Highly-absorbent starch-containing polymeric compositions |
| JPS51125468A (en) * | 1975-03-27 | 1976-11-01 | Sanyo Chem Ind Ltd | Method of preparing resins of high water absorbency |
| US3984361A (en) * | 1975-05-30 | 1976-10-05 | The United States Of America As Represented By The Secretary Of Agriculture | Preparation of graft polymer latexes by sonification |
| US4028290A (en) * | 1975-10-23 | 1977-06-07 | Hercules Incorporated | Highly absorbent modified polysaccharides |
| US4072640A (en) * | 1976-01-29 | 1978-02-07 | Instituto Venezolano De Investigaciones Cientificas | Copolymerization of vinyl monomers with cellulose and starch in copper ammonium solutions |
-
1976
- 1976-12-06 US US05/748,032 patent/US4134863A/en not_active Expired - Lifetime
-
1977
- 1977-11-23 GB GB48715/77A patent/GB1569481A/en not_active Expired
- 1977-11-23 ZA ZA00776986A patent/ZA776986B/xx unknown
- 1977-11-25 IT IT51952/77A patent/IT1112105B/it active
- 1977-11-25 PH PH20487A patent/PH13721A/en unknown
- 1977-11-29 DE DE19772753214 patent/DE2753214A1/de not_active Withdrawn
- 1977-12-01 SE SE7713665A patent/SE432104B/sv unknown
- 1977-12-01 BE BE183092A patent/BE861400A/xx not_active IP Right Cessation
- 1977-12-02 BR BR7708027A patent/BR7708027A/pt unknown
- 1977-12-05 JP JP14598177A patent/JPS5377296A/ja active Granted
- 1977-12-05 AU AU31237/77A patent/AU511614B2/en not_active Expired
- 1977-12-05 ES ES464767A patent/ES464767A1/es not_active Expired
- 1977-12-05 CA CA292,338A patent/CA1109052A/en not_active Expired
- 1977-12-05 IL IL53538A patent/IL53538A/xx unknown
- 1977-12-06 CH CH1490777A patent/CH625136A5/fr not_active IP Right Cessation
- 1977-12-06 NL NL7713471A patent/NL7713471A/xx unknown
- 1977-12-06 FR FR7736755A patent/FR2372849A1/fr active Granted
- 1977-12-09 IN IN445/DEL/77A patent/IN147644B/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2528555A1 (de) * | 1974-06-26 | 1976-01-15 | Pulp Paper Res Inst | Verfahren zur herstellung eines modifizierten cellulosematerials |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3613207A1 (de) * | 1986-04-18 | 1987-10-22 | Akzo Gmbh | Mit wasser quellbare zusammensetzung, ihre herstellung und verwendung |
| US4795762A (en) * | 1986-04-18 | 1989-01-03 | Akzo Nv | Water-swellable composition, synthesis and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3123777A (en) | 1979-06-21 |
| IL53538A (en) | 1980-11-30 |
| ZA776986B (en) | 1978-09-27 |
| CH625136A5 (OSRAM) | 1981-09-15 |
| IL53538A0 (en) | 1978-03-10 |
| BR7708027A (pt) | 1979-01-02 |
| JPS6134722B2 (OSRAM) | 1986-08-09 |
| IT1112105B (it) | 1986-01-13 |
| US4134863A (en) | 1979-01-16 |
| SE432104B (sv) | 1984-03-19 |
| PH13721A (en) | 1980-09-09 |
| FR2372849B1 (OSRAM) | 1983-10-07 |
| SE7713665L (sv) | 1978-06-07 |
| AU511614B2 (en) | 1980-08-28 |
| BE861400A (fr) | 1978-03-31 |
| IN147644B (OSRAM) | 1980-05-17 |
| FR2372849A1 (fr) | 1978-06-30 |
| ES464767A1 (es) | 1978-09-01 |
| JPS5377296A (en) | 1978-07-08 |
| CA1109052A (en) | 1981-09-15 |
| GB1569481A (en) | 1980-06-18 |
| NL7713471A (nl) | 1978-06-08 |
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