NO135710B - - Google Patents
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- Publication number
- NO135710B NO135710B NO741108A NO741108A NO135710B NO 135710 B NO135710 B NO 135710B NO 741108 A NO741108 A NO 741108A NO 741108 A NO741108 A NO 741108A NO 135710 B NO135710 B NO 135710B
- Authority
- NO
- Norway
- Prior art keywords
- nitric acid
- cellulose
- reaction
- weight
- oxidation
- Prior art date
Links
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 46
- 229910017604 nitric acid Inorganic materials 0.000 claims description 46
- 229920002678 cellulose Polymers 0.000 claims description 42
- 239000001913 cellulose Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 36
- 238000007254 oxidation reaction Methods 0.000 claims description 30
- 230000003647 oxidation Effects 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 239000002253 acid Substances 0.000 claims description 22
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 21
- 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 claims description 20
- 230000001590 oxidative effect Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 8
- 230000000391 smoking effect Effects 0.000 claims description 3
- 239000000047 product Substances 0.000 description 23
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 229910001868 water Inorganic materials 0.000 description 20
- 239000000835 fiber Substances 0.000 description 16
- 235000019504 cigarettes Nutrition 0.000 description 12
- 229920002201 Oxidized cellulose Polymers 0.000 description 11
- 239000012452 mother liquor Substances 0.000 description 11
- 229940107304 oxidized cellulose Drugs 0.000 description 11
- 239000000376 reactant Substances 0.000 description 11
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 10
- 241000208125 Nicotiana Species 0.000 description 9
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 9
- 230000008901 benefit Effects 0.000 description 7
- 239000012295 chemical reaction liquid Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 229920001131 Pulp (paper) Polymers 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 241000219146 Gossypium Species 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 230000001089 mineralizing effect Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 235000006408 oxalic acid Nutrition 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 241000157282 Aesculus Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 240000002024 Gossypium herbaceum Species 0.000 description 2
- 235000004341 Gossypium herbaceum Nutrition 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 235000010181 horse chestnut Nutrition 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-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
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229940030225 antihemorrhagics Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 description 1
- 239000001639 calcium acetate Substances 0.000 description 1
- 235000011092 calcium acetate Nutrition 0.000 description 1
- 229960005147 calcium acetate Drugs 0.000 description 1
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical class [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 1
- QXDMQSPYEZFLGF-UHFFFAOYSA-L calcium oxalate Chemical compound [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- IRXRGVFLQOSHOH-UHFFFAOYSA-L dipotassium;oxalate Chemical compound [K+].[K+].[O-]C(=O)C([O-])=O IRXRGVFLQOSHOH-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002874 hemostatic agent Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 1
- 239000011654 magnesium acetate Substances 0.000 description 1
- 229940069446 magnesium acetate Drugs 0.000 description 1
- 235000011285 magnesium acetate Nutrition 0.000 description 1
- 235000014824 magnesium bicarbonate Nutrition 0.000 description 1
- 239000002370 magnesium bicarbonate Substances 0.000 description 1
- UHNWOJJPXCYKCG-UHFFFAOYSA-L magnesium oxalate Chemical compound [Mg+2].[O-]C(=O)C([O-])=O UHNWOJJPXCYKCG-UHFFFAOYSA-L 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007652 sheet-forming process Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000271 synthetic detergent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
- A24B15/165—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
- C08B15/04—Carboxycellulose, e.g. prepared by oxidation with nitrogen dioxide
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1518873A GB1457885A (en) | 1973-03-29 | 1973-03-29 | Oxidation of cellulose |
Publications (3)
Publication Number | Publication Date |
---|---|
NO741108L NO741108L (no) | 1974-10-01 |
NO135710B true NO135710B (xx) | 1977-02-07 |
NO135710C NO135710C (xx) | 1977-05-16 |
Family
ID=10054573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO741108A NO741108L (no) | 1973-03-29 | 1974-03-28 | Fremgangsmåte til å oksydere cellulose, særlig for anvendelse i røkematerialer. |
Country Status (16)
Country | Link |
---|---|
US (1) | US4100341A (xx) |
JP (1) | JPS5927761B2 (xx) |
BE (1) | BE813088A (xx) |
CA (1) | CA1016540A (xx) |
CH (1) | CH589100A5 (xx) |
DE (1) | DE2414925A1 (xx) |
DK (1) | DK137334B (xx) |
FR (1) | FR2223386B1 (xx) |
GB (1) | GB1457885A (xx) |
IE (1) | IE39075B1 (xx) |
IT (1) | IT1024534B (xx) |
LU (1) | LU69718A1 (xx) |
NL (1) | NL7404285A (xx) |
NO (1) | NO741108L (xx) |
SE (1) | SE402779B (xx) |
ZA (1) | ZA741486B (xx) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4365059A (en) * | 1981-08-03 | 1982-12-21 | The United States Of America As Represented By The Secretary Of The Army | Nitration of cellulose |
DE4107354C1 (xx) * | 1991-03-08 | 1992-11-05 | Acetocell Gmbh & Co Kg, 7162 Gschwend, De | |
ATE209661T1 (de) * | 1997-01-30 | 2001-12-15 | Alpenstock Holdings Ltd | Cellulosederivate |
IE990617A1 (en) | 1998-07-21 | 2000-05-03 | Alpenstock Holdings Ltd | Flat Flexible Materials |
DE60027548T2 (de) | 1999-02-24 | 2007-04-26 | Sca Hygiene Products Gmbh | Oxidierte zellulose enthaltende fasermaterialien und daraus hergestellte produkte |
US6379494B1 (en) | 1999-03-19 | 2002-04-30 | Weyerhaeuser Company | Method of making carboxylated cellulose fibers and products of the method |
US6524348B1 (en) | 1999-03-19 | 2003-02-25 | Weyerhaeuser Company | Method of making carboxylated cellulose fibers and products of the method |
DE19953589B4 (de) | 1999-11-08 | 2005-05-25 | Sca Hygiene Products Gmbh | Polysaccharid mit funktionellen Gruppen, Verfahren zu dessen Herstellung und daraus hergestellte Produkte |
DE19953591A1 (de) | 1999-11-08 | 2001-05-17 | Sca Hygiene Prod Gmbh | Metallvernetzbare oxidierte cellulosehaltige Faserstoffe und daraus hergestellte Produkte |
US6919447B2 (en) * | 2001-06-06 | 2005-07-19 | Weyerhaeuser Company | Hypochlorite free method for preparation of stable carboxylated carbohydrate products |
US20050028953A1 (en) * | 2003-08-05 | 2005-02-10 | Severeid David E. | Methods for making carboxylated pulp fibers |
US7001483B2 (en) * | 2003-08-05 | 2006-02-21 | Weyerhaeuser Company | Apparatus for making carboxylated pulp fibers |
CN101300275A (zh) * | 2005-09-02 | 2008-11-05 | 奥特雷塞尔发展服务有限公司 | 用于制备聚葡糖醛酸酐和/或其盐的方法 |
EP2391338A1 (en) | 2009-01-30 | 2011-12-07 | Hemcon Medical Technologies (IP) Limited | Micronized oxidized cellulose salt |
FI124748B (fi) * | 2011-11-15 | 2015-01-15 | Upm Kymmene Corp | Paperituote sekä menetelmä ja järjestelmä seossuhteen valmistamiseksi |
FI127014B (en) | 2013-05-15 | 2017-09-29 | Upm Kymmene Corp | Process for the manufacture of nanofibrillar cellulose and for the manufacture of a paper product |
FI20135773L (xx) * | 2013-07-16 | 2015-01-17 | Stora Enso Oyj | |
US10894838B2 (en) | 2015-11-12 | 2021-01-19 | The Research Foundation For The State University Of New York | Production of carboxylated nanocelluloses |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US29059A (en) * | 1860-07-10 | Improvement in manufacture of paper-pulp | ||
US1923292A (en) * | 1931-08-31 | 1933-08-22 | Harry P Bassett | Purification of cellulose material |
US1985609A (en) * | 1933-09-18 | 1934-12-25 | Herman B Kipper | Process for the digestion of vegetable growths to produce cellulose |
GB438435A (en) * | 1934-05-16 | 1935-11-18 | Henry Dreyfus | Improvements in the treatment of cellulosic materials |
GB510165A (en) * | 1938-01-27 | 1939-07-27 | Henry Dreyfus | Improvements in or relating to the manufacture of cellulose |
US2256391A (en) * | 1940-12-05 | 1941-09-16 | Eastman Kodak Co | Method for preparing oxidized cellulose |
NL64782C (xx) * | 1943-12-22 | 1900-01-01 | Germaine Marie Henrie Desorbay | |
FR989191A (fr) * | 1944-09-07 | 1951-09-05 | Traitement Chimique Des Vegeta | Procédé de traitement des matières fibreuses, plus particulièrement des végétaux en vue de l'obtention de la cellulose |
US2472591A (en) * | 1946-03-29 | 1949-06-07 | Eastman Kodak Co | Method of preparing an oxidized nitrated cellulose |
US3007917A (en) * | 1953-04-02 | 1961-11-07 | Leon Simon | Production of oxycellulose material |
US3364200A (en) * | 1960-03-28 | 1968-01-16 | Johnson & Johnson | Oxidized cellulose product and method for preparing the same |
US3253977A (en) * | 1965-04-15 | 1966-05-31 | Napex Inc | Digestion of vegetable material by nitric acid |
-
1973
- 1973-03-29 GB GB1518873A patent/GB1457885A/en not_active Expired
-
1974
- 1974-03-07 ZA ZA00741486A patent/ZA741486B/xx unknown
- 1974-03-07 US US05/449,058 patent/US4100341A/en not_active Expired - Lifetime
- 1974-03-11 CA CA194,624A patent/CA1016540A/en not_active Expired
- 1974-03-19 IE IE572/74A patent/IE39075B1/xx unknown
- 1974-03-25 SE SE7403991A patent/SE402779B/xx unknown
- 1974-03-27 LU LU69718A patent/LU69718A1/xx unknown
- 1974-03-28 NO NO741108A patent/NO741108L/no unknown
- 1974-03-28 DE DE2414925A patent/DE2414925A1/de active Pending
- 1974-03-28 CH CH432074A patent/CH589100A5/xx not_active IP Right Cessation
- 1974-03-28 IT IT67992/74A patent/IT1024534B/it active
- 1974-03-28 DK DK173574AA patent/DK137334B/da unknown
- 1974-03-28 FR FR7410860A patent/FR2223386B1/fr not_active Expired
- 1974-03-29 BE BE142675A patent/BE813088A/xx unknown
- 1974-03-29 JP JP49034801A patent/JPS5927761B2/ja not_active Expired
- 1974-03-29 NL NL7404285A patent/NL7404285A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CA1016540A (en) | 1977-08-30 |
NL7404285A (xx) | 1974-10-01 |
DK137334C (xx) | 1978-07-24 |
IT1024534B (it) | 1978-07-20 |
LU69718A1 (xx) | 1974-07-17 |
NO741108L (no) | 1974-10-01 |
FR2223386A1 (xx) | 1974-10-25 |
DK137334B (da) | 1978-02-20 |
JPS5927761B2 (ja) | 1984-07-07 |
FR2223386B1 (xx) | 1978-06-02 |
US4100341A (en) | 1978-07-11 |
ZA741486B (en) | 1975-04-30 |
IE39075B1 (en) | 1978-08-02 |
IE39075L (en) | 1974-09-29 |
JPS5024219A (xx) | 1975-03-15 |
SE402779B (sv) | 1978-07-17 |
GB1457885A (en) | 1976-12-08 |
NO135710C (xx) | 1977-05-16 |
DE2414925A1 (de) | 1974-10-10 |
CH589100A5 (xx) | 1977-06-30 |
BE813088A (fr) | 1974-09-30 |
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