CA1133658A - Mesophase dope containing cellulose derivative and inorganic acid - Google Patents
Mesophase dope containing cellulose derivative and inorganic acidInfo
- Publication number
- CA1133658A CA1133658A CA360,521A CA360521A CA1133658A CA 1133658 A CA1133658 A CA 1133658A CA 360521 A CA360521 A CA 360521A CA 1133658 A CA1133658 A CA 1133658A
- Authority
- CA
- Canada
- Prior art keywords
- dope
- acid
- mesophase
- cellulose
- cellulose derivative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920002678 cellulose Polymers 0.000 title claims abstract description 113
- 239000001913 cellulose Substances 0.000 title claims abstract description 103
- 150000007522 mineralic acids Chemical class 0.000 title claims abstract description 55
- 239000007864 aqueous solution Substances 0.000 claims abstract description 67
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 230000001747 exhibiting effect Effects 0.000 claims abstract description 6
- 229920000609 methyl cellulose Polymers 0.000 claims description 44
- 239000001923 methylcellulose Substances 0.000 claims description 44
- 235000010981 methylcellulose Nutrition 0.000 claims description 44
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical group CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims description 42
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 39
- 229910017604 nitric acid Inorganic materials 0.000 claims description 39
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 38
- KXJGSNRAQWDDJT-UHFFFAOYSA-N 1-acetyl-5-bromo-2h-indol-3-one Chemical compound BrC1=CC=C2N(C(=O)C)CC(=O)C2=C1 KXJGSNRAQWDDJT-UHFFFAOYSA-N 0.000 claims description 29
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 22
- 229920003064 carboxyethyl cellulose Polymers 0.000 claims description 22
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 22
- 238000006467 substitution reaction Methods 0.000 claims description 22
- 229920002301 cellulose acetate Polymers 0.000 claims description 21
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 19
- 239000000243 solution Substances 0.000 claims description 18
- 229920003086 cellulose ether Polymers 0.000 claims description 15
- 239000001856 Ethyl cellulose Substances 0.000 claims description 11
- 229920001249 ethyl cellulose Polymers 0.000 claims description 11
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 9
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 9
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 9
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 9
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 9
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 8
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 8
- XTHPWXDJESJLNJ-UHFFFAOYSA-N sulfurochloridic acid Chemical compound OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 claims description 8
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N thiocyanic acid Chemical compound SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims description 8
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 5
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 5
- 229940105329 carboxymethylcellulose Drugs 0.000 claims description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 4
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 claims description 4
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 claims description 4
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 claims description 4
- 229920000896 Ethulose Polymers 0.000 claims description 3
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 claims description 3
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 claims description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 3
- 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 claims description 3
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 claims description 2
- 229940005991 chloric acid Drugs 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 claims description 2
- CUILPNURFADTPE-UHFFFAOYSA-N hypobromous acid Chemical compound BrO CUILPNURFADTPE-UHFFFAOYSA-N 0.000 claims description 2
- LLYCMZGLHLKPPU-UHFFFAOYSA-N perbromic acid Chemical compound OBr(=O)(=O)=O LLYCMZGLHLKPPU-UHFFFAOYSA-N 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 2
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 claims 2
- 229940005657 pyrophosphoric acid Drugs 0.000 claims 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims 1
- 229940077239 chlorous acid Drugs 0.000 claims 1
- 229940071676 hydroxypropylcellulose Drugs 0.000 claims 1
- TVZISJTYELEYPI-UHFFFAOYSA-N hypodiphosphoric acid Chemical compound OP(O)(=O)P(O)(O)=O TVZISJTYELEYPI-UHFFFAOYSA-N 0.000 claims 1
- 229960002900 methylcellulose Drugs 0.000 description 40
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 30
- 239000000203 mixture Substances 0.000 description 24
- 239000002904 solvent Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 15
- 239000010408 film Substances 0.000 description 15
- 238000005345 coagulation Methods 0.000 description 14
- 230000015271 coagulation Effects 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 12
- 239000000499 gel Substances 0.000 description 12
- 239000003960 organic solvent Substances 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 12
- 238000006116 polymerization reaction Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000009987 spinning Methods 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 230000001112 coagulating effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910001867 inorganic solvent Inorganic materials 0.000 description 4
- 239000003049 inorganic solvent Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- -1 for example Chemical group 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- 229920001747 Cellulose diacetate Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229920005570 flexible polymer Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241000338118 Dulus Species 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- XULSCZPZVQIMFM-IPZQJPLYSA-N odevixibat Chemical compound C12=CC(SC)=C(OCC(=O)N[C@@H](C(=O)N[C@@H](CC)C(O)=O)C=3C=CC(O)=CC=3)C=C2S(=O)(=O)NC(CCCC)(CCCC)CN1C1=CC=CC=C1 XULSCZPZVQIMFM-IPZQJPLYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920006112 polar polymer Polymers 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000343 polyazomethine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12071879A JPS5826373B2 (ja) | 1979-09-21 | 1979-09-21 | セルロ−スエ−テルと無機酸とからなるメソフエイズド−プ |
| JP120718/79 | 1979-09-21 | ||
| JP121960/79 | 1979-09-25 | ||
| JP12196079A JPS5826372B2 (ja) | 1979-09-25 | 1979-09-25 | セルロ−スアセテ−トと無機酸とからなるメソフエイズド−プ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1133658A true CA1133658A (en) | 1982-10-19 |
Family
ID=26458246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA360,521A Expired CA1133658A (en) | 1979-09-21 | 1980-09-17 | Mesophase dope containing cellulose derivative and inorganic acid |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US4370168A (enExample) |
| CA (1) | CA1133658A (enExample) |
| DE (2) | DE3050992C2 (enExample) |
| FI (1) | FI71328C (enExample) |
| FR (1) | FR2465763A1 (enExample) |
| SE (1) | SE446455B (enExample) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3050992C2 (enExample) * | 1979-09-21 | 1987-05-21 | Asahi Kasei Kogyo K.K., Osaka, Jp | |
| US4464323A (en) * | 1982-08-09 | 1984-08-07 | E. I. Du Pont De Nemours And Company | Process for preparing high strength cellulosic fibers |
| US4501886A (en) * | 1982-08-09 | 1985-02-26 | E. I. Du Pont De Nemours And Company | Cellulosic fibers from anisotropic solutions |
| DE3561821D1 (en) * | 1984-04-27 | 1988-04-14 | Michelin Rech Tech | Anisotropic compositions of cellulose esters; processes for obtaining said compositions; fibers of cellulosic esters or cellulose |
| US4725394A (en) * | 1985-02-19 | 1988-02-16 | E. I. Du Pont De Nemours And Company | Process for preparing high stength cellulosic fibers |
| US4750939A (en) * | 1986-12-02 | 1988-06-14 | North Carolina State University | Anisotropic cellulose solutions, fibers, and films formed therefrom |
| FR2683821B1 (fr) * | 1991-11-15 | 1998-11-20 | Asahi Chemical Ind | Polysaccharide, polysaccharide neutralise et composition comprenant ce dernier. |
| CN1081685C (zh) * | 1994-08-19 | 2002-03-27 | 阿克佐诺贝尔公司 | 纤维素溶液及其制得的产品 |
| FR2724662B1 (fr) * | 1994-09-19 | 1997-01-24 | Michelin Rech De Tech Sa | Solutions cristal-liquide a base de cellulose et d'au moins un acide phosphorique |
| FR2737735A1 (fr) * | 1995-08-10 | 1997-02-14 | Michelin Rech Tech | Fibres cellulosiques a allongement rupture ameliore |
| NL1001692C2 (nl) * | 1995-11-20 | 1997-05-21 | Akzo Nobel Nv | Werkwijze voor de bereiding van geregenereerde cellulose filamenten. |
| US6068919A (en) * | 1996-02-14 | 2000-05-30 | Akzo Nobel N.V. | Cellulose fibres and filaments having a high elongation at break |
| ATE200695T1 (de) * | 1996-10-18 | 2001-05-15 | Michelin Rech Tech | Wässrige koagulationsmittel für flüssigkristalllösungen auf basis von cellulosehaltigen materialen |
| CA2268792C (fr) | 1996-10-18 | 2006-07-11 | Michelin Recherche Et Technique S.A. | Agent coagulant aqueux pour solutions cristal-liquide a base de matieres cellulosiques |
| US8663392B2 (en) | 2008-03-14 | 2014-03-04 | Virginia Tech Intellectual Properties, Inc. | Method and apparatus for lignocellulose pretreatment using a super-cellulose-solvent and highly volatile solvents |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US571530A (en) * | 1896-11-17 | Rudolf langhans | ||
| US1510735A (en) * | 1922-10-31 | 1924-10-07 | Eastman Kodak Co | Cellulose-ether purification |
| US1521876A (en) * | 1923-10-22 | 1925-01-06 | Eastman Kodak Co | Process of treating cellulose acetate |
| US1787542A (en) * | 1925-12-30 | 1931-01-06 | Celanese Corp | Phosphoric-acid solution of cellulose |
| US1961251A (en) * | 1928-08-21 | 1934-06-05 | Du Pont | Reduction of viscosity of cellulose acetate |
| US1943461A (en) * | 1930-04-16 | 1934-01-16 | Ici Ltd | Cellulose ether and method of making same |
| US2095334A (en) * | 1935-01-16 | 1937-10-12 | Celanese Corp | Manufacture of cellulose esters |
| DE926843C (de) * | 1953-03-08 | 1955-04-25 | Kalle & Co Ag | Verfahren zur Veredlung roher Celluloseaether |
| DE1212058B (de) * | 1960-03-21 | 1966-03-10 | Hercules Powder Co Ltd | Verfahren zum Reinigen von wasserloeslichen, Alkali enthaltenden Hydroxyalkylcelluloseaethern |
| BE785655A (fr) * | 1971-06-30 | 1973-01-02 | Celanese Corp | Procede d'esterification secondaire continue de la cellulose |
| JPS5296230A (en) * | 1976-02-09 | 1977-08-12 | Du Pont | Manufacture of optically isomerized dope and cellulose fiber |
| DE3050992C2 (enExample) * | 1979-09-21 | 1987-05-21 | Asahi Kasei Kogyo K.K., Osaka, Jp |
-
1980
- 1980-09-17 DE DE3050992A patent/DE3050992C2/de not_active Expired
- 1980-09-17 DE DE3035084A patent/DE3035084C2/de not_active Expired - Lifetime
- 1980-09-17 CA CA360,521A patent/CA1133658A/en not_active Expired
- 1980-09-19 US US06/188,854 patent/US4370168A/en not_active Expired - Lifetime
- 1980-09-19 FR FR8020236A patent/FR2465763A1/fr active Granted
- 1980-09-19 SE SE8006589A patent/SE446455B/sv not_active IP Right Cessation
- 1980-09-19 FI FI802951A patent/FI71328C/fi not_active IP Right Cessation
-
1982
- 1982-08-02 US US06/404,299 patent/US4486119A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FI71328B (fi) | 1986-09-09 |
| FI71328C (fi) | 1986-12-19 |
| FI802951A7 (fi) | 1981-03-22 |
| DE3050992C2 (enExample) | 1987-05-21 |
| US4486119A (en) | 1984-12-04 |
| DE3050992A1 (enExample) | 1985-07-04 |
| DE3035084C2 (de) | 1990-06-21 |
| DE3035084A1 (de) | 1981-03-26 |
| US4370168A (en) | 1983-01-25 |
| FR2465763B1 (enExample) | 1984-04-20 |
| FR2465763A1 (fr) | 1981-03-27 |
| SE446455B (sv) | 1986-09-15 |
| SE8006589L (sv) | 1981-03-22 |
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| MKEX | Expiry |