CN103687652B - 从纤维素醚中除去邻亚烷卤醇的方法 - Google Patents
从纤维素醚中除去邻亚烷卤醇的方法 Download PDFInfo
- Publication number
- CN103687652B CN103687652B CN201280035563.3A CN201280035563A CN103687652B CN 103687652 B CN103687652 B CN 103687652B CN 201280035563 A CN201280035563 A CN 201280035563A CN 103687652 B CN103687652 B CN 103687652B
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- China
- Prior art keywords
- hydroxyalkylalkylcellulose
- water
- cellulose ether
- steam
- molecular weight
- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 229920003086 cellulose ether Polymers 0.000 title abstract description 69
- 125000002947 alkylene group Chemical group 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000000203 mixture Substances 0.000 claims abstract description 42
- 238000001704 evaporation Methods 0.000 claims abstract description 19
- 230000008020 evaporation Effects 0.000 claims abstract description 19
- -1 alkylene halohydrin Chemical class 0.000 claims description 57
- 238000002360 preparation method Methods 0.000 claims description 17
- 239000002253 acid Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 10
- 239000000376 reactant Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 239000007790 solid phase Substances 0.000 claims description 8
- 239000012071 phase Substances 0.000 claims description 7
- 238000012691 depolymerization reaction Methods 0.000 claims description 6
- 239000007791 liquid phase Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 35
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 35
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 33
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- 229920002472 Starch Polymers 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 239000008107 starch Substances 0.000 description 9
- 235000019698 starch Nutrition 0.000 description 9
- 239000001294 propane Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 235000010980 cellulose Nutrition 0.000 description 7
- 229920002678 cellulose Polymers 0.000 description 6
- 239000001913 cellulose Substances 0.000 description 6
- 235000013305 food Nutrition 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000006467 substitution reaction Methods 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 239000012736 aqueous medium Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- XENVCRGQTABGKY-ZHACJKMWSA-N chlorohydrin Chemical compound CC#CC#CC#CC#C\C=C\C(Cl)CO XENVCRGQTABGKY-ZHACJKMWSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000008186 active pharmaceutical agent Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000006266 etherification reaction Methods 0.000 description 4
- 238000002098 selective ion monitoring Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000006072 paste Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 229920013820 alkyl cellulose Polymers 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000013207 serial dilution Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical class CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- VZIQXGLTRZLBEX-UHFFFAOYSA-N 2-chloro-1-propanol Chemical compound CC(Cl)CO VZIQXGLTRZLBEX-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 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
- 150000008065 acid anhydrides Chemical group 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920006184 cellulose methylcellulose Polymers 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940126534 drug product Drugs 0.000 description 1
- DQYBDCGIPTYXML-UHFFFAOYSA-N ethoxyethane;hydrate Chemical compound O.CCOCC DQYBDCGIPTYXML-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000004817 gas chromatography Methods 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
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 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 1
- 229920002521 macromolecule Polymers 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
- 238000005303 weighing Methods 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
- C08B11/00—Preparation of cellulose ethers
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
- C08L1/28—Alkyl ethers
- C08L1/284—Alkyl ethers with hydroxylated hydrocarbon radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
时间(小时) | 1C2P(ppm) | 2C1P(ppm) |
0.5 | 0.126 | 0.080 |
1.0 | 0.120 | 0.077 |
2.0 | 0.199 | 0.076 |
3.0 | 0.114 | 0.077 |
4.0 | 0.107 | 0.073 |
时间(小时) | 1C2P(ppm) | 2C1P(ppm) |
0.5 | 0.108 | 0.073 |
1.0 | 0.072 | 0.055 |
2.0 | 0.034 | 0.033 |
时间(分钟) | 1C2P(ppm) | 2C1P(ppm) |
5 | 0.110 | 0.072 |
10 | 0.070 | 0.052 |
时间(小时) | 湿气(wt%) | 1C2P(ppm) | 2C1P(ppm) |
0.5 | 7.05 | 0.084 | 0.062 |
1.0 | 0.95 | 0.064 | 0.053 |
2.0 | 0.50 | 0.050 | 0.043 |
3.0 | 0.25 | 0.037 | 0.035 |
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161512115P | 2011-07-27 | 2011-07-27 | |
US61/512,115 | 2011-07-27 | ||
PCT/US2012/047007 WO2013016059A1 (en) | 2011-07-27 | 2012-07-17 | Method of removing alkylene halogenohydrin from cellulose ether |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103687652A CN103687652A (zh) | 2014-03-26 |
CN103687652B true CN103687652B (zh) | 2015-07-15 |
Family
ID=46551947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201280035563.3A Active CN103687652B (zh) | 2011-07-27 | 2012-07-17 | 从纤维素醚中除去邻亚烷卤醇的方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9156919B2 (zh) |
EP (1) | EP2736614B1 (zh) |
JP (1) | JP5681330B2 (zh) |
KR (1) | KR101775414B1 (zh) |
CN (1) | CN103687652B (zh) |
BR (1) | BR112014000738B1 (zh) |
WO (1) | WO2013016059A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10626192B2 (en) | 2017-05-02 | 2020-04-21 | Corn Products Development, Inc. | Process for reducing propylene chlorohydrin in hydroxypropylated products |
JP7414686B2 (ja) * | 2020-10-22 | 2024-01-16 | 信越化学工業株式会社 | 解重合されたセルロースエーテルの製造方法 |
JP7414685B2 (ja) | 2020-10-22 | 2024-01-16 | 信越化学工業株式会社 | 解重合されたセルロースエーテルの製造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3527751A (en) * | 1967-02-16 | 1970-09-08 | Ici Ltd | Process for the purification of water-soluble hydroxyalkyl cellulose |
CN1306028A (zh) * | 2000-01-14 | 2001-08-01 | 拜尔公司 | 对凝胶成形聚合物进行干燥并形成凝胶的连续方法和设备 |
CN101466739A (zh) * | 2006-06-14 | 2009-06-24 | 陶氏环球技术公司 | 降低纤维素醚的平均分子量的方法 |
CN101547938A (zh) * | 2006-09-09 | 2009-09-30 | 陶氏沃尔弗纤维素有限公司 | 洗涤多糖衍生物的方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS538753B2 (zh) * | 1971-10-11 | 1978-03-31 | ||
US4431800A (en) | 1982-03-30 | 1984-02-14 | General Foods Corporation | Process for hydroxypropylating starch |
JPS6225101A (ja) | 1985-07-24 | 1987-02-03 | Shin Etsu Chem Co Ltd | 低重合度セルロ−スエ−テルの製造方法 |
US4783242A (en) | 1986-05-22 | 1988-11-08 | The Dow Chemical Company | Distillation system and process |
US6261218B1 (en) | 1998-12-01 | 2001-07-17 | The Dow Chemical Company | Process and apparatus for making low molecular weight cellulose ethers |
WO2000059947A1 (en) * | 1999-04-01 | 2000-10-12 | The Dow Chemical Company | Enhanced gel strength methylcellulose |
US6294008B1 (en) * | 1999-04-21 | 2001-09-25 | The Dow Chemical Company | Haze-free cellulose ether capsules and process for making |
CA2296125A1 (en) | 2000-01-14 | 2001-07-14 | Ken Mann | Portable container level indicator |
EP1356825B1 (en) * | 2001-01-31 | 2005-11-02 | Asahi Kasei Chemicals Corporation | Process for producing aqueous cellulose derivative dispersion |
DE10141680B4 (de) | 2001-08-25 | 2004-02-26 | Clariant Gmbh | Verfahren zur Herstellung niederviskoser Celluloseether durch sauer-oxidativen Abbau von gemahlenen und getrockneten Celluloseethern |
WO2007023513A1 (ja) | 2005-08-22 | 2007-03-01 | Shin-Etsu Chemical Co., Ltd. | 溶解性の改善されたセルロース誘導体の製造製法 |
JP5233067B2 (ja) * | 2004-11-02 | 2013-07-10 | 信越化学工業株式会社 | 水溶性セルロースエーテルの分離方法 |
-
2012
- 2012-07-17 WO PCT/US2012/047007 patent/WO2013016059A1/en active Application Filing
- 2012-07-17 JP JP2014522872A patent/JP5681330B2/ja active Active
- 2012-07-17 US US14/131,556 patent/US9156919B2/en active Active
- 2012-07-17 EP EP12738364.4A patent/EP2736614B1/en active Active
- 2012-07-17 KR KR1020147005163A patent/KR101775414B1/ko active Active
- 2012-07-17 CN CN201280035563.3A patent/CN103687652B/zh active Active
- 2012-07-17 BR BR112014000738-1A patent/BR112014000738B1/pt active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3527751A (en) * | 1967-02-16 | 1970-09-08 | Ici Ltd | Process for the purification of water-soluble hydroxyalkyl cellulose |
CN1306028A (zh) * | 2000-01-14 | 2001-08-01 | 拜尔公司 | 对凝胶成形聚合物进行干燥并形成凝胶的连续方法和设备 |
CN101466739A (zh) * | 2006-06-14 | 2009-06-24 | 陶氏环球技术公司 | 降低纤维素醚的平均分子量的方法 |
CN101547938A (zh) * | 2006-09-09 | 2009-09-30 | 陶氏沃尔弗纤维素有限公司 | 洗涤多糖衍生物的方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2014521771A (ja) | 2014-08-28 |
EP2736614A1 (en) | 2014-06-04 |
KR20140062474A (ko) | 2014-05-23 |
JP5681330B2 (ja) | 2015-03-04 |
CN103687652A (zh) | 2014-03-26 |
EP2736614B1 (en) | 2016-06-29 |
US20140148591A1 (en) | 2014-05-29 |
BR112014000738B1 (pt) | 2020-10-27 |
WO2013016059A1 (en) | 2013-01-31 |
US9156919B2 (en) | 2015-10-13 |
KR101775414B1 (ko) | 2017-09-19 |
BR112014000738A2 (pt) | 2017-02-14 |
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