CA1084913A - Process for the preparation of alkali cellulose - Google Patents
Process for the preparation of alkali celluloseInfo
- Publication number
- CA1084913A CA1084913A CA273,135A CA273135A CA1084913A CA 1084913 A CA1084913 A CA 1084913A CA 273135 A CA273135 A CA 273135A CA 1084913 A CA1084913 A CA 1084913A
- Authority
- CA
- Canada
- Prior art keywords
- cellulose
- viscose
- alkali
- pulp
- acid
- 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
- 239000001913 cellulose Substances 0.000 title claims abstract description 69
- 229920002678 cellulose Polymers 0.000 title claims abstract description 66
- 239000003513 alkali Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 230000008569 process Effects 0.000 title claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000010411 cooking Methods 0.000 claims abstract description 11
- 150000001412 amines Chemical class 0.000 claims abstract description 7
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 5
- 150000002148 esters Chemical class 0.000 claims abstract description 5
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims abstract description 4
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 150000002576 ketones Chemical class 0.000 claims abstract description 4
- 150000003839 salts Chemical class 0.000 claims abstract description 4
- 150000002466 imines Chemical class 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 13
- -1 polyoxyethylene Polymers 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 150000007513 acids Chemical class 0.000 claims description 4
- 150000002170 ethers Chemical class 0.000 claims description 3
- 159000000000 sodium salts Chemical class 0.000 claims description 3
- JZNWSCPGTDBMEW-UHFFFAOYSA-N Glycerophosphorylethanolamin Natural products NCCOP(O)(=O)OCC(O)CO JZNWSCPGTDBMEW-UHFFFAOYSA-N 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 229930182558 Sterol Natural products 0.000 claims description 2
- 150000001298 alcohols Chemical class 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- WTJKGGKOPKCXLL-RRHRGVEJSA-N phosphatidylcholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCCC=CCCCCCCCC WTJKGGKOPKCXLL-RRHRGVEJSA-N 0.000 claims description 2
- 150000008104 phosphatidylethanolamines Chemical class 0.000 claims description 2
- 150000003906 phosphoinositides Chemical class 0.000 claims description 2
- 150000003432 sterols Chemical class 0.000 claims description 2
- 235000003702 sterols Nutrition 0.000 claims description 2
- 235000000346 sugar Nutrition 0.000 claims description 2
- 150000003222 pyridines Chemical class 0.000 claims 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 129
- 235000010980 cellulose Nutrition 0.000 description 59
- 229920000297 Rayon Polymers 0.000 description 54
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 16
- 229910021653 sulphate ion Inorganic materials 0.000 description 16
- 239000000654 additive Substances 0.000 description 9
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 8
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 6
- 229920000875 Dissolving pulp Polymers 0.000 description 6
- 239000000787 lecithin Substances 0.000 description 6
- 235000010445 lecithin Nutrition 0.000 description 6
- 229940067606 lecithin Drugs 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 4
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 4
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 4
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 4
- ZBJVLWIYKOAYQH-UHFFFAOYSA-N naphthalen-2-yl 2-hydroxybenzoate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=C(C=CC=C2)C2=C1 ZBJVLWIYKOAYQH-UHFFFAOYSA-N 0.000 description 4
- 229940106135 cellulose Drugs 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 239000008347 soybean phospholipid Substances 0.000 description 3
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 102100025597 Caspase-4 Human genes 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 101100273284 Homo sapiens CASP4 gene Proteins 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical group CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000005907 alkyl ester group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000012991 xanthate Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical class CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-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
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical class [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 1
- BAECOWNUKCLBPZ-HIUWNOOHSA-N Triolein Natural products O([C@H](OCC(=O)CCCCCCC/C=C\CCCCCCCC)COC(=O)CCCCCCC/C=C\CCCCCCCC)C(=O)CCCCCCC/C=C\CCCCCCCC BAECOWNUKCLBPZ-HIUWNOOHSA-N 0.000 description 1
- PHYFQTYBJUILEZ-UHFFFAOYSA-N Trioleoylglycerol Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC(OC(=O)CCCCCCCC=CCCCCCCCC)COC(=O)CCCCCCCC=CCCCCCCCC PHYFQTYBJUILEZ-UHFFFAOYSA-N 0.000 description 1
- VELDDJHOYPMZNR-UHFFFAOYSA-J [C+4].[O-]S(=O)OS([O-])=O.[O-]S(=O)OS([O-])=O Chemical compound [C+4].[O-]S(=O)OS([O-])=O.[O-]S(=O)OS([O-])=O VELDDJHOYPMZNR-UHFFFAOYSA-J 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical class [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000003946 cyclohexylamines Chemical class 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229940093476 ethylene glycol Drugs 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 229910052748 manganese Chemical class 0.000 description 1
- 239000011572 manganese Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- JYVLIDXNZAXMDK-UHFFFAOYSA-N pentan-2-ol Chemical compound CCCC(C)O JYVLIDXNZAXMDK-UHFFFAOYSA-N 0.000 description 1
- AQIXEPGDORPWBJ-UHFFFAOYSA-N pentan-3-ol Chemical compound CCC(O)CC AQIXEPGDORPWBJ-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 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
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/08—Alkali cellulose
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI760623 | 1976-03-10 | ||
| FI760623A FI53144C (cs) | 1976-03-10 | 1976-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1084913A true CA1084913A (en) | 1980-09-02 |
Family
ID=8509820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA273,135A Expired CA1084913A (en) | 1976-03-10 | 1977-03-03 | Process for the preparation of alkali cellulose |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS52128983A (cs) |
| AT (1) | AT374809B (cs) |
| CA (1) | CA1084913A (cs) |
| CS (1) | CS225129B2 (cs) |
| DD (1) | DD128953A1 (cs) |
| DE (1) | DE2710309A1 (cs) |
| ES (1) | ES456679A1 (cs) |
| FI (1) | FI53144C (cs) |
| FR (1) | FR2343753A1 (cs) |
| GB (1) | GB1553134A (cs) |
| NO (1) | NO144265B (cs) |
| PL (1) | PL111131B1 (cs) |
| SE (1) | SE433612B (cs) |
| YU (1) | YU39674B (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7361753B2 (en) | 2000-04-12 | 2008-04-22 | Se Tylose Gmbh & Co. Kg | Method for the production of easily wetted, water-soluble, powdered at least alkylated non-ionic cellulose ethers |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3518877A1 (de) * | 1985-05-25 | 1986-11-27 | Wolff Walsrode Ag, 3030 Walsrode | Verfahren zur herstellung von viskosen mit reduziertem cs(pfeil abwaerts)2(pfeil abwaerts)-bedarf |
| JPH0168837U (cs) * | 1987-10-27 | 1989-05-08 | ||
| JPH02212895A (ja) * | 1989-02-14 | 1990-08-24 | Kobe Steel Ltd | 吸音材及び吸音構造 |
| ATE478189T1 (de) * | 2006-06-14 | 2010-09-15 | Sappi Mfg Pty Ltd | Verfahren zur verstärkung der reaktivität von zellstoff |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH156436A (de) * | 1930-08-18 | 1932-08-15 | Ig Farbenindustrie Ag | Verfahren zur Herstellung von Viskose. |
| DE850002C (de) * | 1944-11-05 | 1952-09-22 | Solvay Werke Gmbh | Verfahren zur Vermeidung des Ausflockens von Hemicellulose aus gebrauchten Laugen der Alkalicelluloseherstellung |
| US2716058A (en) * | 1950-06-24 | 1955-08-23 | Int Paper Canada | Deresination of wood pulp |
| US2680737A (en) * | 1951-05-17 | 1954-06-08 | Hercules Powder Co Ltd | Alkali cellulose preparation |
| US2680738A (en) * | 1952-04-11 | 1954-06-08 | Hercules Powder Co Ltd | Preparation of alkali cellulose |
| GB791321A (en) * | 1953-06-05 | 1958-02-26 | Rayonier Inc | Improvements in viscose process and products |
| US2789902A (en) * | 1954-01-19 | 1957-04-23 | Celanese Corp | Refining of wood pulp |
| FR1122729A (fr) * | 1954-04-19 | 1956-09-12 | Rayonier | Procédé de trempage en bouillie de la cellulose |
| US2898334A (en) * | 1955-07-26 | 1959-08-04 | Rayonier Inc | Cellulose slurry-steeping |
| NL101654C (cs) * | 1957-05-16 | 1900-01-01 | ||
| FR1240749A (fr) * | 1959-02-02 | 1960-09-09 | Buckeye Cellulose Corp | Perfectionnements à la préparation des pâtes de bois, pâtes ainsi obtenues et leurs applications |
| SE353331B (cs) * | 1968-10-03 | 1973-01-29 | Mo Och Domsjoe Ab | |
| FI55853C (fi) * | 1970-01-23 | 1979-10-10 | Mo Och Domsjoe Ab | Foerfarande vid framstaellning av viskos |
-
1976
- 1976-03-10 FI FI760623A patent/FI53144C/fi not_active IP Right Cessation
-
1977
- 1977-03-03 CA CA273,135A patent/CA1084913A/en not_active Expired
- 1977-03-09 DE DE19772710309 patent/DE2710309A1/de not_active Ceased
- 1977-03-09 YU YU633/77A patent/YU39674B/xx unknown
- 1977-03-09 SE SE7702670A patent/SE433612B/xx not_active Application Discontinuation
- 1977-03-09 PL PL1977196538A patent/PL111131B1/pl unknown
- 1977-03-09 DD DD7700197756A patent/DD128953A1/xx unknown
- 1977-03-09 ES ES456679A patent/ES456679A1/es not_active Expired
- 1977-03-09 NO NO770836A patent/NO144265B/no unknown
- 1977-03-09 FR FR7706926A patent/FR2343753A1/fr active Granted
- 1977-03-09 JP JP2492877A patent/JPS52128983A/ja active Granted
- 1977-03-09 GB GB9935/77A patent/GB1553134A/en not_active Expired
- 1977-03-09 CS CS771585A patent/CS225129B2/cs unknown
- 1977-03-09 AT AT0156577A patent/AT374809B/de not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7361753B2 (en) | 2000-04-12 | 2008-04-22 | Se Tylose Gmbh & Co. Kg | Method for the production of easily wetted, water-soluble, powdered at least alkylated non-ionic cellulose ethers |
Also Published As
| Publication number | Publication date |
|---|---|
| SE7702670L (sv) | 1977-09-11 |
| ES456679A1 (es) | 1978-01-16 |
| YU39674B (en) | 1985-03-20 |
| FR2343753B1 (cs) | 1983-08-12 |
| DE2710309A1 (de) | 1977-09-15 |
| GB1553134A (en) | 1979-09-19 |
| ATA156577A (de) | 1983-10-15 |
| FI53144C (cs) | 1978-02-10 |
| CS225129B2 (en) | 1984-02-13 |
| FI760623A7 (cs) | 1977-09-11 |
| NO770836L (no) | 1977-09-13 |
| SE433612B (sv) | 1984-06-04 |
| JPS52128983A (en) | 1977-10-28 |
| DD128953A1 (de) | 1977-12-21 |
| YU63377A (en) | 1982-05-31 |
| FI53144B (cs) | 1977-10-31 |
| JPS625921B2 (cs) | 1987-02-07 |
| PL111131B1 (en) | 1980-08-30 |
| AT374809B (de) | 1984-06-12 |
| NO144265B (no) | 1981-04-21 |
| FR2343753A1 (fr) | 1977-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |