WO2003016356A1 - Highly carboxylated cellulose fibers and process of making the same - Google Patents
Highly carboxylated cellulose fibers and process of making the same Download PDFInfo
- Publication number
- WO2003016356A1 WO2003016356A1 PCT/US2002/023746 US0223746W WO03016356A1 WO 2003016356 A1 WO2003016356 A1 WO 2003016356A1 US 0223746 W US0223746 W US 0223746W WO 03016356 A1 WO03016356 A1 WO 03016356A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fibers
- process according
- anhydride
- dicarboxylic acid
- cellulose
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 229920003043 Cellulose fiber Polymers 0.000 title abstract description 41
- 239000000835 fiber Substances 0.000 claims abstract description 80
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 33
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000725 suspension Substances 0.000 claims abstract description 22
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 229920002678 cellulose Polymers 0.000 claims description 62
- 239000001913 cellulose Substances 0.000 claims description 52
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 34
- 229920001282 polysaccharide Polymers 0.000 claims description 17
- 239000005017 polysaccharide Substances 0.000 claims description 17
- 150000004676 glycans Chemical class 0.000 claims description 16
- 239000011541 reaction mixture Substances 0.000 claims description 15
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 13
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 11
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- CTSLXHKWHWQRSH-UHFFFAOYSA-N oxalyl chloride Chemical compound ClC(=O)C(Cl)=O CTSLXHKWHWQRSH-UHFFFAOYSA-N 0.000 claims description 8
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 claims description 7
- 150000007524 organic acids Chemical class 0.000 claims description 7
- -1 poly(maleic anhydride) Polymers 0.000 claims description 7
- 229940014800 succinic anhydride Drugs 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 229920000297 Rayon Polymers 0.000 claims description 5
- 239000002964 rayon Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- VANNPISTIUFMLH-UHFFFAOYSA-N glutaric anhydride Chemical compound O=C1CCCC(=O)O1 VANNPISTIUFMLH-UHFFFAOYSA-N 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 239000011121 hardwood Substances 0.000 claims description 4
- 239000011122 softwood Substances 0.000 claims description 4
- 241000609240 Ambelania acida Species 0.000 claims description 3
- 229920000433 Lyocell Polymers 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 239000010905 bagasse Substances 0.000 claims description 3
- 235000013339 cereals Nutrition 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 229920002101 Chitin Polymers 0.000 claims description 2
- 229920001661 Chitosan Polymers 0.000 claims description 2
- 240000000797 Hibiscus cannabinus Species 0.000 claims description 2
- 244000273256 Phragmites communis Species 0.000 claims description 2
- 235000014676 Phragmites communis Nutrition 0.000 claims description 2
- 244000082204 Phyllostachys viridis Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000004373 Pullulan Substances 0.000 claims description 2
- 229920001218 Pullulan Polymers 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 150000008064 anhydrides Chemical class 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 150000003141 primary amines Chemical class 0.000 claims description 2
- 235000019423 pullulan Nutrition 0.000 claims description 2
- 150000003335 secondary amines Chemical class 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims 3
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims 2
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims 1
- 125000005843 halogen group Chemical group 0.000 claims 1
- 235000006408 oxalic acid Nutrition 0.000 claims 1
- 235000019260 propionic acid Nutrition 0.000 claims 1
- 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 claims 1
- 239000004627 regenerated cellulose Substances 0.000 claims 1
- 239000002250 absorbent Substances 0.000 abstract description 12
- 230000002745 absorbent Effects 0.000 abstract description 12
- 238000000576 coating method Methods 0.000 abstract description 8
- 239000000123 paper Substances 0.000 abstract description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000003599 detergent Substances 0.000 abstract description 2
- 238000005342 ion exchange Methods 0.000 abstract description 2
- 239000002243 precursor Substances 0.000 abstract description 2
- 235000010980 cellulose Nutrition 0.000 description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 238000005259 measurement Methods 0.000 description 11
- 239000012153 distilled water Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000003153 chemical reaction reagent Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 235000017281 sodium acetate Nutrition 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 125000002091 cationic group Chemical group 0.000 description 6
- 238000005886 esterification reaction Methods 0.000 description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 6
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 description 5
- 125000000129 anionic group Chemical group 0.000 description 5
- 229940087562 sodium acetate trihydrate Drugs 0.000 description 5
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 150000001447 alkali salts Chemical class 0.000 description 4
- 230000032050 esterification Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 4
- 229920000247 superabsorbent polymer Polymers 0.000 description 4
- 229920002201 Oxidized cellulose Polymers 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000021523 carboxylation Effects 0.000 description 3
- 238000006473 carboxylation reaction Methods 0.000 description 3
- 150000001805 chlorine compounds Chemical class 0.000 description 3
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical compound OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 description 3
- 239000001632 sodium acetate Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- 229920002261 Corn starch Polymers 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 239000008120 corn starch Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000006266 etherification reaction Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 235000011056 potassium acetate Nutrition 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 1
- BWZVCCNYKMEVEX-UHFFFAOYSA-N 2,4,6-Trimethylpyridine Chemical compound CC1=CC(C)=NC(C)=C1 BWZVCCNYKMEVEX-UHFFFAOYSA-N 0.000 description 1
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 241000208140 Acer Species 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 235000018783 Dacrycarpus dacrydioides Nutrition 0.000 description 1
- 235000014466 Douglas bleu Nutrition 0.000 description 1
- 244000004281 Eucalyptus maculata Species 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 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
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 241000218595 Picea sitchensis Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 241001223353 Pinus caribaea Species 0.000 description 1
- 235000009324 Pinus caribaea Nutrition 0.000 description 1
- 241001236219 Pinus echinata Species 0.000 description 1
- 235000005018 Pinus echinata Nutrition 0.000 description 1
- 240000007263 Pinus koraiensis Species 0.000 description 1
- 235000017339 Pinus palustris Nutrition 0.000 description 1
- 235000008578 Pinus strobus Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 240000001416 Pseudotsuga menziesii Species 0.000 description 1
- 235000005386 Pseudotsuga menziesii var menziesii Nutrition 0.000 description 1
- 241000219492 Quercus Species 0.000 description 1
- 240000003021 Tsuga heterophylla Species 0.000 description 1
- 235000008554 Tsuga heterophylla Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000000402 conductometric titration Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- GOYYUYNOGNSLTE-UHFFFAOYSA-N copper;2-azanidylethylazanide Chemical compound [Cu+2].[NH-]CC[NH-].[NH-]CC[NH-] GOYYUYNOGNSLTE-UHFFFAOYSA-N 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- WFPZPJSADLPSON-UHFFFAOYSA-N dinitrogen tetraoxide Chemical compound [O-][N+](=O)[N+]([O-])=O WFPZPJSADLPSON-UHFFFAOYSA-N 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- MUTGBJKUEZFXGO-UHFFFAOYSA-N hexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21 MUTGBJKUEZFXGO-UHFFFAOYSA-N 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 150000002576 ketones Chemical group 0.000 description 1
- 210000002751 lymph Anatomy 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 210000004914 menses Anatomy 0.000 description 1
- 238000005517 mercerization Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229940107304 oxidized cellulose Drugs 0.000 description 1
- 125000005498 phthalate group Chemical group 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 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
- RWMKSKOZLCXHOK-UHFFFAOYSA-M potassium;butanoate Chemical compound [K+].CCCC([O-])=O RWMKSKOZLCXHOK-UHFFFAOYSA-M 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- MFBOGIVSZKQAPD-UHFFFAOYSA-M sodium butyrate Chemical compound [Na+].CCCC([O-])=O MFBOGIVSZKQAPD-UHFFFAOYSA-M 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
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000003900 succinic acid esters Chemical class 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/20—Chemically or biochemically modified fibres
-
- 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
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
- A61L24/0042—Materials resorbable by the body
-
- 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
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/043—Mixtures of macromolecular materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/08—Preparation of cellulose esters of organic acids of monobasic organic acids with three or more carbon atoms, e.g. propionate or butyrate
- C08B3/10—Preparation of cellulose esters of organic acids of monobasic organic acids with three or more carbon atoms, e.g. propionate or butyrate with five or more carbon-atoms, e.g. valerate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/20—Esterification with maintenance of the fibrous structure of the cellulose
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/1845—Aromatic mono- or polycarboxylic acids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/192—Polycarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/203—Unsaturated carboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Surgery (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002456207A CA2456207A1 (en) | 2001-08-03 | 2002-07-26 | Highly carboxylated cellulose fibers and process of making the same |
MXPA04000684A MXPA04000684A (en) | 2001-08-03 | 2002-07-26 | Highly carboxylated cellulose fibers and process of making the same. |
JP2003521681A JP2005526148A (en) | 2001-08-03 | 2002-07-26 | Highly carboxylated cellulose fiber and method for producing the same |
EP02770385A EP1417238A1 (en) | 2001-08-03 | 2002-07-26 | Highly carboxylated cellulose fibers and process of making the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/922,124 | 2001-08-03 | ||
US09/922,124 US6627750B2 (en) | 2001-08-03 | 2001-08-03 | Highly carboxylated cellulose fibers and process of making the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003016356A1 true WO2003016356A1 (en) | 2003-02-27 |
Family
ID=25446531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/023746 WO2003016356A1 (en) | 2001-08-03 | 2002-07-26 | Highly carboxylated cellulose fibers and process of making the same |
Country Status (6)
Country | Link |
---|---|
US (1) | US6627750B2 (en) |
EP (1) | EP1417238A1 (en) |
JP (1) | JP2005526148A (en) |
CA (1) | CA2456207A1 (en) |
MX (1) | MXPA04000684A (en) |
WO (1) | WO2003016356A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007515562A (en) * | 2003-10-14 | 2007-06-14 | レイヨニア プロダクツ アンド ファイナンシャル サービス カンパニー | Useful materials for producing cellulose liquid diffusion fibers in sheet form |
GB2469181A (en) * | 2009-03-31 | 2010-10-06 | Acetylated Fibres Ltd | Treatment of a natural cellulosic fibre with an anhydride |
WO2011156878A1 (en) * | 2010-06-14 | 2011-12-22 | Fatima Aparecida Do Amaral | Disposable, biodegradable (environmentally friendly) diaper |
WO2012118428A1 (en) | 2011-02-28 | 2012-09-07 | Ge Healthcare Uk Limited | Sample preservation method and sample application substrate |
CN103535953A (en) * | 2013-11-05 | 2014-01-29 | 吴江市森豪纺织品有限公司 | Multifunctional anti-fading fabric |
US9512304B2 (en) | 2012-03-09 | 2016-12-06 | Dic Corporation | Method for producing resin composition comprising modified microfibrillated plant fibers, and same resin composition |
CN107687040A (en) * | 2017-09-21 | 2018-02-13 | 阜阳恒泰纺织有限公司 | A kind of antibiotic soft scribbled and preparation method thereof |
WO2020089195A1 (en) * | 2018-10-29 | 2020-05-07 | Sca Forest Products Ab | Production of modified pulp |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030150556A1 (en) * | 2002-01-11 | 2003-08-14 | Miller Charles E. | Fibrous product containing plant seed |
US20050028956A1 (en) * | 2003-08-05 | 2005-02-10 | Weyerhaeuser Company | Method for making tissue product containing carboxylated cellulosic fibers |
US20050028955A1 (en) * | 2003-08-05 | 2005-02-10 | Weyerhaeuser Company | Tissue product containing carboxylated cellulosic fibers |
WO2005054297A2 (en) | 2003-11-28 | 2005-06-16 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
CN1833732A (en) * | 2005-03-17 | 2006-09-20 | 李毅彬 | Making method of and use of antibiotic surgical dressing |
EP2527531B1 (en) * | 2005-05-02 | 2014-07-30 | International Paper Company | Ligno cellulosic materials and the products made therefrom |
EP1918328A1 (en) * | 2006-10-31 | 2008-05-07 | Cognis Oleochemicals GmbH | Process for making cellulose-polymer composites |
US7874266B2 (en) * | 2007-09-28 | 2011-01-25 | T.F.H. Publications, Inc. | Biodegradable waste pad or litter including nutrients for promoting microbial populations |
US8241657B2 (en) * | 2007-12-04 | 2012-08-14 | Boston Scientific Scimed, Inc. | Biodisintegrable medical devices |
AU2010300795B2 (en) * | 2009-09-30 | 2014-04-24 | Weyerhaeuser Nr Company | Internally curing cement based materials |
WO2011090410A1 (en) * | 2010-01-19 | 2011-07-28 | Sca Hygiene Products Ab | Absorbent article comprising an absorbent porous foam |
WO2011113119A1 (en) | 2010-03-19 | 2011-09-22 | Fibria Celulose S/A | Process for the treatment of cellulose pulps, cellulose pulp thus obtained and use of biopolymer for treating cellulose pulps |
CN102002850B (en) * | 2010-12-08 | 2012-06-27 | 青岛即发新材料有限公司 | Method for producing water-soluble chitosan fiber non-woven fabric |
US9056792B2 (en) | 2011-06-30 | 2015-06-16 | Weyerhaeuser Nr Company | Internally curing cement based materials |
US8461233B2 (en) | 2011-06-30 | 2013-06-11 | Weyerhaeuser Nr Company | Fiber for fiber cement and resulting product |
JP5828288B2 (en) * | 2011-08-08 | 2015-12-02 | 王子ホールディングス株式会社 | Method for producing fine fibrous cellulose, method for producing nonwoven fabric, fine fibrous cellulose, fine fibrous cellulose-containing slurry, nonwoven fabric, and composite |
US9023757B2 (en) | 2012-01-27 | 2015-05-05 | Celanese Acetate Llc | Substituted cellulose acetates and uses thereof |
US9167830B2 (en) | 2012-01-27 | 2015-10-27 | Celanese Acetate Llc | Substituted cellulose acetates and uses thereof |
US10040871B2 (en) * | 2012-06-28 | 2018-08-07 | Covidien Lp | Medical devices based on oxidized cellulose |
WO2014046679A1 (en) | 2012-09-24 | 2014-03-27 | Celanese Acetate Llc | Wood laminate articles comprising substituted cellulose ester adhesives and methods relating thereto |
WO2014046681A1 (en) | 2012-09-24 | 2014-03-27 | Celanese Acetate Llc | Engineered wood produced with substituted cellulose ester adhesives and methods relating thereto |
US20150203723A1 (en) * | 2012-09-24 | 2015-07-23 | Celanese Acetate Llc | Substituted Cellulose Ester Adhesives and Methods and Articles Relating Thereto |
US9328459B2 (en) * | 2013-03-29 | 2016-05-03 | Weyerhaeuser Nr Company | Multi-stage catalytic carboxylation of mercerized cellulose fibers |
KR101658424B1 (en) * | 2013-04-30 | 2016-09-22 | 충남대학교산학협력단 | The method of manufacturing cellulose and method of manufacturing a cellulose-based polymer having antimicrobial |
FI20135773L (en) * | 2013-07-16 | 2015-01-17 | Stora Enso Oyj | |
SE539751C2 (en) * | 2015-11-09 | 2017-11-14 | Stora Enso Oyj | Active moisture control material for packaging and a method for production thereof |
KR102001796B1 (en) * | 2016-01-12 | 2019-07-18 | 주식회사 다이셀 | Method for producing cellulose acetate and cellulose acetate |
CN108602971B (en) * | 2016-02-10 | 2022-04-01 | 王子控股株式会社 | Sheet material |
EP3475484A4 (en) * | 2016-06-22 | 2020-01-22 | Performance Biofilaments Inc. | Surface-modified cellulosic materials and methods of producing the same |
CN107022820A (en) * | 2017-06-05 | 2017-08-08 | 太仓市鑫泰针织有限公司 | A kind of antibiotic health care blend fibre |
CN109734821A (en) * | 2018-12-20 | 2019-05-10 | 广西中医药大学 | A kind of extracting method of natural bambo juice polysaccharide |
CN110721660A (en) * | 2019-08-20 | 2020-01-24 | 齐鲁理工学院 | Preparation method of sanitary water absorbing material based on corn straw seedlings |
JP7350570B2 (en) * | 2019-08-29 | 2023-09-26 | 大阪瓦斯株式会社 | Modified cellulose nanofiber and method for producing the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459352A (en) * | 1982-12-27 | 1984-07-10 | Eastman Kodak Company | Conductive coating composition and composite bases and elements containing same |
US5371211A (en) * | 1990-12-04 | 1994-12-06 | Eastman Kodak Company | Cellulose esters and salts thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE785655A (en) | 1971-06-30 | 1973-01-02 | Celanese Corp | SECONDARY CONTINUOUS CELLULOSE ESTERIFICATION PROCESS |
JPS6015641B2 (en) | 1981-03-18 | 1985-04-20 | 花王株式会社 | Method for producing fibrous carboxymethyl cellulose |
DE3312022A1 (en) | 1983-04-02 | 1984-10-11 | Akzo Gmbh, 5600 Wuppertal | METHOD FOR THE PRODUCTION OF WATER-INSOLUBLE FIBERS FROM CELLULOSE MONOESTERS OF MALEINIC ACID, AMBERSTIC ACID AND PHTHALIC ACID WITH AN EXTREMELY HIGH ABSORPTION CAPACITY FOR WATER AND PHYSIOLOGICAL LIQUIDS |
US5741901A (en) | 1995-11-16 | 1998-04-21 | Eastman Chemical Company | UV curable cellulose esters |
US5935383A (en) | 1996-12-04 | 1999-08-10 | Kimberly-Clark Worldwide, Inc. | Method for improved wet strength paper |
US5973139A (en) | 1998-02-06 | 1999-10-26 | Eastman Chemical Company | Carboxylated cellulose esters |
US6241853B1 (en) | 1998-12-10 | 2001-06-05 | Kimberly Clark Worldwide, Inc. | High wet and dry strength paper product |
US6471824B1 (en) | 1998-12-29 | 2002-10-29 | Weyerhaeuser Company | Carboxylated cellulosic fibers |
US6037466A (en) | 1998-12-31 | 2000-03-14 | National Starch And Chemical Investment Holding Corporation | Method for preparing hydrophobic starch derivatives |
-
2001
- 2001-08-03 US US09/922,124 patent/US6627750B2/en not_active Expired - Lifetime
-
2002
- 2002-07-26 CA CA002456207A patent/CA2456207A1/en not_active Abandoned
- 2002-07-26 MX MXPA04000684A patent/MXPA04000684A/en unknown
- 2002-07-26 JP JP2003521681A patent/JP2005526148A/en active Pending
- 2002-07-26 EP EP02770385A patent/EP1417238A1/en not_active Withdrawn
- 2002-07-26 WO PCT/US2002/023746 patent/WO2003016356A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459352A (en) * | 1982-12-27 | 1984-07-10 | Eastman Kodak Company | Conductive coating composition and composite bases and elements containing same |
US5371211A (en) * | 1990-12-04 | 1994-12-06 | Eastman Kodak Company | Cellulose esters and salts thereof |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007515562A (en) * | 2003-10-14 | 2007-06-14 | レイヨニア プロダクツ アンド ファイナンシャル サービス カンパニー | Useful materials for producing cellulose liquid diffusion fibers in sheet form |
GB2469181A (en) * | 2009-03-31 | 2010-10-06 | Acetylated Fibres Ltd | Treatment of a natural cellulosic fibre with an anhydride |
WO2010112896A1 (en) * | 2009-03-31 | 2010-10-07 | Acetylated Fibres Ltd | Hydrophobised fibres and their uses |
WO2011156878A1 (en) * | 2010-06-14 | 2011-12-22 | Fatima Aparecida Do Amaral | Disposable, biodegradable (environmentally friendly) diaper |
WO2012118428A1 (en) | 2011-02-28 | 2012-09-07 | Ge Healthcare Uk Limited | Sample preservation method and sample application substrate |
US9512304B2 (en) | 2012-03-09 | 2016-12-06 | Dic Corporation | Method for producing resin composition comprising modified microfibrillated plant fibers, and same resin composition |
CN103535953A (en) * | 2013-11-05 | 2014-01-29 | 吴江市森豪纺织品有限公司 | Multifunctional anti-fading fabric |
CN107687040A (en) * | 2017-09-21 | 2018-02-13 | 阜阳恒泰纺织有限公司 | A kind of antibiotic soft scribbled and preparation method thereof |
WO2020089195A1 (en) * | 2018-10-29 | 2020-05-07 | Sca Forest Products Ab | Production of modified pulp |
US11739477B2 (en) | 2018-10-29 | 2023-08-29 | Sca Forest Products Ab | Production of modified pulp |
Also Published As
Publication number | Publication date |
---|---|
EP1417238A1 (en) | 2004-05-12 |
CA2456207A1 (en) | 2003-02-27 |
US20030054167A1 (en) | 2003-03-20 |
US6627750B2 (en) | 2003-09-30 |
MXPA04000684A (en) | 2005-08-26 |
JP2005526148A (en) | 2005-09-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6627750B2 (en) | Highly carboxylated cellulose fibers and process of making the same | |
JP3274550B2 (en) | Manufacturing method of water absorbing material | |
JP2020518715A (en) | Cellulose derivative | |
CA2755498C (en) | Treatment of fibres to endure processing | |
EP2108676B1 (en) | Crosslinked paper based material | |
US5770711A (en) | Polysaccharides substituted with polycarboxylated moieties | |
CA2250176C (en) | Temporary wet strength polymers from oxidized reaction product of polyhydroxy polymer and 1,2-disubstituted carboxylic alkene | |
JP2018087405A (en) | Method of making highly functional, low viscosity kraft fiber using acidic bleaching sequence and fiber made by the process | |
US6531593B1 (en) | Method for production of cellulose derivatives and the resulting products | |
EP3137507A1 (en) | Composition comprising cellulose fibres and crosslinking agents, water soluble crosslinked cellulose ethers, and the production thereof | |
EP0582624B1 (en) | Cationic polysaccharides | |
WO2000039390A1 (en) | Kraft wood fibers for carboxyalkyl cellulose | |
EP2721074A1 (en) | A method and a system for manufacturing cellulosic material | |
US4025472A (en) | Process for drying polymer-modified cellulose fibres and products produced thereby | |
Khan et al. | Extraction processes for deriving cellulose: A comprehensive review on green approaches | |
US5731259A (en) | Cationic polysaccharides | |
JPS59187612A (en) | Production of water-insoluble fiber having extremely high absorbancy to water or physiological fluid comprising cellulose monoester of maleic acid, succinic acid and phthalic acid | |
Young | Cross-linked cellulose and cellulose derivatives | |
US2562955A (en) | Silicon containing derivatives of cellulosic material | |
US20020139496A1 (en) | Kraft wood fibers for carboxymethyl cellulose | |
EP0791002A1 (en) | Anionic polymer | |
Xiao et al. | Development of high-retention water absorbent from cellulosic materials: Water absorbent from bleached kraft pulp | |
RU2781048C2 (en) | Cellulose derivatives | |
JPS6233874A (en) | Production of modified cellulose fiber | |
Trivedi | Supramolecular design of cellulose-based hydrogel beads |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG UZ VN YU ZA ZM ZW Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG UZ VN YU ZA ZM |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002770385 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2004/000684 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003521681 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2456207 Country of ref document: CA |
|
WWP | Wipo information: published in national office |
Ref document number: 2002770385 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2002770385 Country of ref document: EP |