CS225129B2 - The production of alkalicellulose - Google Patents
The production of alkalicellulose Download PDFInfo
- Publication number
- CS225129B2 CS225129B2 CS771585A CS158577A CS225129B2 CS 225129 B2 CS225129 B2 CS 225129B2 CS 771585 A CS771585 A CS 771585A CS 158577 A CS158577 A CS 158577A CS 225129 B2 CS225129 B2 CS 225129B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- cellulose
- viscose
- alpha
- pulp
- acid
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229920002678 cellulose Polymers 0.000 claims abstract description 58
- 239000001913 cellulose Substances 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 10
- 150000001412 amines Chemical class 0.000 claims abstract description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 5
- 150000002576 ketones Chemical class 0.000 claims abstract description 5
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 5
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims abstract description 4
- 150000002148 esters Chemical class 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000000605 extraction Methods 0.000 claims abstract description 3
- 150000002466 imines Chemical class 0.000 claims abstract description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 24
- 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 claims description 5
- 239000000787 lecithin Substances 0.000 claims description 5
- 235000010445 lecithin Nutrition 0.000 claims description 5
- 229940067606 lecithin Drugs 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 159000000000 sodium salts Chemical class 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 229930182558 Sterol Natural products 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 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
- 150000003222 pyridines Chemical class 0.000 claims description 2
- 235000003702 sterols Nutrition 0.000 claims description 2
- 235000000346 sugar Nutrition 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims 1
- 239000000194 fatty acid Substances 0.000 claims 1
- 229930195729 fatty acid Natural products 0.000 claims 1
- 150000004665 fatty acids Chemical class 0.000 claims 1
- 150000002895 organic esters Chemical class 0.000 claims 1
- 150000003906 phosphoinositides Chemical class 0.000 claims 1
- 150000003432 sterols 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
- 239000003513 alkali Substances 0.000 abstract description 17
- 238000010411 cooking Methods 0.000 abstract description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 75
- 229920000297 Rayon Polymers 0.000 description 53
- 239000000654 additive Substances 0.000 description 10
- 239000011324 bead Substances 0.000 description 10
- 229920001131 Pulp (paper) Polymers 0.000 description 9
- 239000002655 kraft paper Substances 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 7
- -1 polyoxyethylene group Polymers 0.000 description 7
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 7
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical class S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 6
- 229910021653 sulphate ion Inorganic materials 0.000 description 6
- 238000007598 dipping method Methods 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 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
- 239000000126 substance Substances 0.000 description 4
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 3
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000002791 soaking Methods 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
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 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 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- COXUNHIKBNZLLM-UHFFFAOYSA-H [B+3].[B+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O Chemical compound [B+3].[B+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O COXUNHIKBNZLLM-UHFFFAOYSA-H 0.000 description 2
- 150000001298 alcohols Chemical group 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 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 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000005517 mercerization Methods 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
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000005070 ripening Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- IQDVXXOBJULTFE-UHFFFAOYSA-M 1-dodecylpyridin-1-ium;hydron;sulfate Chemical compound OS([O-])(=O)=O.CCCCCCCCCCCC[N+]1=CC=CC=C1 IQDVXXOBJULTFE-UHFFFAOYSA-M 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
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 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
- 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
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- NQRYJNQNLNOLGT-UHFFFAOYSA-O Piperidinium(1+) Chemical compound C1CC[NH2+]CC1 NQRYJNQNLNOLGT-UHFFFAOYSA-O 0.000 description 1
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 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
- 238000003811 acetone extraction Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000005233 alkylalcohol group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- FOJJDKAUVSCWPH-UHFFFAOYSA-N butan-1-ol;hexan-2-one Chemical compound CCCCO.CCCCC(C)=O FOJJDKAUVSCWPH-UHFFFAOYSA-N 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
- 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 compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 150000003946 cyclohexylamines Chemical class 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000499 gel Substances 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
- 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
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 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 1
- 229910052757 nitrogen Inorganic materials 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
- 239000003960 organic solvent 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
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- HVTHJRMZXBWFNE-UHFFFAOYSA-J sodium zincate Chemical compound [OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Zn+2] HVTHJRMZXBWFNE-UHFFFAOYSA-J 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 239000004753 textile Substances 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
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000012991 xanthate 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI760623A FI53144C (de) | 1976-03-10 | 1976-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS225129B2 true CS225129B2 (en) | 1984-02-13 |
Family
ID=8509820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS771585A CS225129B2 (en) | 1976-03-10 | 1977-03-09 | The production of alkalicellulose |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS52128983A (de) |
| AT (1) | AT374809B (de) |
| CA (1) | CA1084913A (de) |
| CS (1) | CS225129B2 (de) |
| DD (1) | DD128953A1 (de) |
| DE (1) | DE2710309A1 (de) |
| ES (1) | ES456679A1 (de) |
| FI (1) | FI53144C (de) |
| FR (1) | FR2343753A1 (de) |
| GB (1) | GB1553134A (de) |
| NO (1) | NO144265B (de) |
| PL (1) | PL111131B1 (de) |
| SE (1) | SE433612B (de) |
| YU (1) | YU39674B (de) |
Families Citing this family (5)
| 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 (de) * | 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 |
| DE10018155A1 (de) * | 2000-04-12 | 2001-10-25 | Clariant Gmbh | Verfahren zur Herstellung von gut benetzbaren, wasserlöslichen, pulverförmigen, mindestens alkylierten, nicht-ionischen Celluloseethern |
| EP2047030B2 (de) * | 2006-06-14 | 2014-04-09 | Sappi Manufacturing (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 |
| GB791322A (en) * | 1953-06-05 | 1958-02-26 | Rayonier Inc | Improvements in viscose process |
| 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 |
| NL227804A (de) * | 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 (de) * | 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 JP JP2492877A patent/JPS52128983A/ja active Granted
- 1977-03-09 YU YU633/77A patent/YU39674B/xx unknown
- 1977-03-09 AT AT0156577A patent/AT374809B/de not_active IP Right Cessation
- 1977-03-09 NO NO770836A patent/NO144265B/no unknown
- 1977-03-09 GB GB9935/77A patent/GB1553134A/en not_active Expired
- 1977-03-09 SE SE7702670A patent/SE433612B/xx not_active Application Discontinuation
- 1977-03-09 ES ES456679A patent/ES456679A1/es not_active Expired
- 1977-03-09 DE DE19772710309 patent/DE2710309A1/de not_active Ceased
- 1977-03-09 PL PL1977196538A patent/PL111131B1/pl unknown
- 1977-03-09 FR FR7706926A patent/FR2343753A1/fr active Granted
- 1977-03-09 DD DD7700197756A patent/DD128953A1/de unknown
- 1977-03-09 CS CS771585A patent/CS225129B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES456679A1 (es) | 1978-01-16 |
| DE2710309A1 (de) | 1977-09-15 |
| SE7702670L (sv) | 1977-09-11 |
| PL111131B1 (en) | 1980-08-30 |
| JPS52128983A (en) | 1977-10-28 |
| GB1553134A (en) | 1979-09-19 |
| FI53144B (de) | 1977-10-31 |
| FI760623A7 (de) | 1977-09-11 |
| FR2343753B1 (de) | 1983-08-12 |
| YU39674B (en) | 1985-03-20 |
| CA1084913A (en) | 1980-09-02 |
| ATA156577A (de) | 1983-10-15 |
| FR2343753A1 (fr) | 1977-10-07 |
| DD128953A1 (de) | 1977-12-21 |
| JPS625921B2 (de) | 1987-02-07 |
| SE433612B (sv) | 1984-06-04 |
| YU63377A (en) | 1982-05-31 |
| AT374809B (de) | 1984-06-12 |
| FI53144C (de) | 1978-02-10 |
| NO144265B (no) | 1981-04-21 |
| NO770836L (no) | 1977-09-13 |
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