CA1108364A - Method of manufacturing cellulose derivative - Google Patents
Method of manufacturing cellulose derivativeInfo
- Publication number
- CA1108364A CA1108364A CA293,434A CA293434A CA1108364A CA 1108364 A CA1108364 A CA 1108364A CA 293434 A CA293434 A CA 293434A CA 1108364 A CA1108364 A CA 1108364A
- Authority
- CA
- Canada
- Prior art keywords
- cellulose
- drying
- absorbent
- roller
- substitution
- 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 80
- 239000001913 cellulose Substances 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 129
- 238000001035 drying Methods 0.000 claims abstract description 57
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000002745 absorbent Effects 0.000 claims abstract description 20
- 239000002250 absorbent Substances 0.000 claims abstract description 20
- 238000006467 substitution reaction Methods 0.000 claims abstract description 19
- 230000008961 swelling Effects 0.000 claims abstract description 16
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 5
- 235000010980 cellulose Nutrition 0.000 claims description 73
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 42
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 39
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 39
- 229940105329 carboxymethylcellulose Drugs 0.000 claims description 39
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 9
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 9
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 229920000609 methyl cellulose Polymers 0.000 claims description 5
- 239000001923 methylcellulose Substances 0.000 claims description 5
- 235000010981 methylcellulose Nutrition 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- DOKHEARVIDLSFF-UHFFFAOYSA-N prop-1-en-1-ol Chemical group CC=CO DOKHEARVIDLSFF-UHFFFAOYSA-N 0.000 claims description 5
- YMXHTKKMLXGXDC-UHFFFAOYSA-N 3-hydroxy-3-butenoic acid Chemical group OC(=C)CC(O)=O YMXHTKKMLXGXDC-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical group OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical group OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 230000009172 bursting Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000004108 freeze drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 2
- 230000008014 freezing Effects 0.000 claims description 2
- 229920001131 Pulp (paper) Polymers 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 44
- 239000008186 active pharmaceutical agent Substances 0.000 description 15
- 239000007788 liquid Substances 0.000 description 14
- 206010042674 Swelling Diseases 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- -1 poly-vinyl pyrrolidon Chemical compound 0.000 description 6
- 229920000297 Rayon Polymers 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 4
- 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 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 3
- 241000905957 Channa melasoma Species 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 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
- 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
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229920003064 carboxyethyl cellulose Polymers 0.000 description 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 2
- 229940106135 cellulose Drugs 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical group C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003335 steric effect Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/22—Post-esterification treatments, including purification
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Hematology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7614342-9 | 1976-12-21 | ||
| SE7614342A SE430609B (sv) | 1976-12-21 | 1976-12-21 | Sett att ur cellulosaderivat framstella absorberande material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1108364A true CA1108364A (en) | 1981-09-08 |
Family
ID=20329803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA293,434A Expired CA1108364A (en) | 1976-12-21 | 1977-12-20 | Method of manufacturing cellulose derivative |
Country Status (19)
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199367A (en) * | 1975-11-07 | 1980-04-22 | Avtex Fibers Inc. | Alloy rayon |
| US4543410A (en) * | 1982-06-21 | 1985-09-24 | Morca, Inc. | Absorbent cellulosic base structures |
| DE3615800A1 (de) * | 1986-05-10 | 1987-11-12 | Rudolf Marx | Verwendung einer packung, die eine fluessigkeitsaufnehmende fuellung aufweist |
| US5118390A (en) * | 1990-08-28 | 1992-06-02 | Kimberly-Clark Corporation | Densified tactile imaging paper |
| US5651862A (en) * | 1991-08-13 | 1997-07-29 | Kimberly-Clark Worldwide, Inc. | Wet-formed absorbent composite |
| US5550189A (en) * | 1992-04-17 | 1996-08-27 | Kimberly-Clark Corporation | Modified polysaccharides having improved absorbent properties and process for the preparation thereof |
| ES2388688T3 (es) * | 1998-07-01 | 2012-10-17 | Convatec Limited | Apositos y materiales adecuados para su utilización en los mismos |
| CN100379462C (zh) * | 1999-11-09 | 2008-04-09 | 电气化学工业株式会社 | 一种包含难溶于水的可溶性纤维素衍生物的组织包被性医疗材料及其制造方法 |
| US6500947B1 (en) * | 2001-08-24 | 2002-12-31 | Weyerhaeuser Company | Superabsorbent polymer |
| US20030034136A1 (en) * | 2002-07-19 | 2003-02-20 | Neogi Amar N. | Superabsorbent cellulosic fiber |
| US20030035950A1 (en) * | 2002-07-19 | 2003-02-20 | Neogi Amar N. | Superabsorbent cellulosic fiber |
| US20030034137A1 (en) * | 2002-07-19 | 2003-02-20 | Neogi Amar N. | Superabsorbent cellulosic fiber |
| US20030024663A1 (en) * | 2002-07-19 | 2003-02-06 | Neogi Amar N. | Superabsorbent cellulosic fiber |
| US6863924B2 (en) * | 2002-12-23 | 2005-03-08 | Kimberly-Clark Worldwide, Inc. | Method of making an absorbent composite |
| US20080147026A1 (en) * | 2006-12-15 | 2008-06-19 | Jian Qin | Absorbent fiber with a low absorbent capacity and slow absorption rate |
| MX2007009796A (es) | 2007-08-14 | 2009-02-25 | Cell Therapy And Technology S | Gel conteniendo pirfenidona. |
| CN102014973A (zh) | 2008-02-29 | 2011-04-13 | 弗罗桑医疗设备公司 | 用于促进止血和/或伤口愈合的装置 |
| KR101779232B1 (ko) * | 2009-12-22 | 2017-09-18 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 기재 상에 불균일 코팅을 생성하기 위한 장치 |
| US8506755B2 (en) * | 2010-12-28 | 2013-08-13 | Kimberly-Clark Worldwide, Inc | Creped tissue product with enhanced retention capacity |
| MX2011007675A (es) | 2011-07-19 | 2012-07-11 | Cell Therapy And Technology S A De C V | Procedimiento para la fabricacion de una composicion farmaceutica en forma de tabletas de liberacion prolongada conteniendo pirfenidona y su aplicacion en la regresion de la insuficiencia renal cronica, contractura capsular mamaria y fibrosis hepatica humanas. |
| WO2013131520A2 (en) | 2012-03-06 | 2013-09-12 | Ferrosan Medical Devices A/S | Pressurized container containing haemostatic paste |
| MX346763B (es) | 2012-03-28 | 2017-03-31 | Cell Therapy And Tech S A De C V | Composición tópica semisólida conteniendo pirfenidona y dialil óxido de disulfuro modificado (odd-m) para eliminar o prevenir el acné. |
| BR112014030962A2 (pt) | 2012-06-12 | 2017-06-27 | Ferrosan Medical Devices As | métodos para preparação e para reconstituição de uma composição seca adequada para uso em hemostase e cicatrização de feridas, e, kit hemostático |
| MX356551B (es) | 2012-08-23 | 2018-06-04 | Grupo Medifarma S A De C V Star | Composición antiséptica, antiseborreica y exfoliante para eliminar o prevenir el acné. |
| JP6390873B2 (ja) | 2013-06-21 | 2018-09-19 | フェッローサン メディカル ディバイス エー／エス | 減圧膨張させた乾燥組成物およびそれを保持するためのシリンジ |
| WO2015086028A1 (en) | 2013-12-11 | 2015-06-18 | Ferrosan Medical Devices A/S | Dry composition comprising an extrusion enhancer |
| WO2016058612A1 (en) | 2014-10-13 | 2016-04-21 | Ferrosan Medical Devices A/S | Dry composition for use in haemostasis and wound healing |
| WO2016102446A1 (en) | 2014-12-24 | 2016-06-30 | Ferrosan Medical Devices A/S | Syringe for retaining and mixing first and second substances |
| RU2717356C2 (ru) | 2015-07-03 | 2020-03-23 | Ферросан Медикал Дивайсиз А/С | Шприц для удерживания вакуума в состоянии хранения |
| JP6588345B2 (ja) | 2016-01-18 | 2019-10-09 | 株式会社 資生堂 | 油中水型乳化化粧料 |
| ES2968412T3 (es) | 2018-05-09 | 2024-05-09 | Ferrosan Medical Devices As | Método para preparar una composición hemostática |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA762553A (en) | 1967-07-04 | S. Scanley Clyde | Method of drying polymer solutions | |
| US962505A (en) * | 1909-07-13 | 1910-06-28 | Papyrus Artificial Paper Mfg Company | Method of craping paper. |
| US2444124A (en) | 1944-03-04 | 1948-06-29 | American Viscose Corp | Method of freeze-drying regenerated cellulose |
| US2602042A (en) * | 1947-08-16 | 1952-07-01 | Inez M Abbott | Processing methyl cellulose and the products thereof |
| US2940890A (en) * | 1956-06-25 | 1960-06-14 | Kimberly Clark Co | Treatment of cellulosic pulps |
| US3005456A (en) * | 1956-07-03 | 1961-10-24 | Personal Products Corp | Catamenial device |
| GB820826A (en) | 1957-01-16 | 1959-09-30 | Du Pont | Improvements in or relating to diapers |
| US3525735A (en) * | 1961-10-27 | 1970-08-25 | Du Pont | Highly absorbent cellulose ethers |
| NL6512955A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1964-11-06 | 1966-05-09 | ||
| US3371666A (en) | 1965-01-26 | 1968-03-05 | Tampax Inc | Absorbent device |
| US3382140A (en) * | 1966-12-30 | 1968-05-07 | Crown Zellerbach Corp | Process for fibrillating cellulosic fibers and products thereof |
| US3589364A (en) * | 1968-03-14 | 1971-06-29 | Buckeye Cellulose Corp | Bibulous cellulosic fibers |
| US3658790A (en) * | 1970-04-22 | 1972-04-25 | Kimberly Clark Co | Absorbent fiber products from phosphorylated cellulose fibers and process therefor |
| US3739782A (en) * | 1970-05-05 | 1973-06-19 | Kimberly Clark Co | Absorbent fibers of phosphorylated cellulose with ion exchange properties and catamenial tampons made therefrom |
| US3691154A (en) * | 1970-05-05 | 1972-09-12 | Kimberly Clark Co | Absorbent fibers of phosphorylated cellulose with ion exchange properties |
| US3731686A (en) * | 1971-03-22 | 1973-05-08 | Personal Products Co | Fluid absorption and retention products and methods of making the same |
| GB1391725A (en) | 1972-03-20 | 1975-04-23 | Kimberly Clark Co | Cellulose fibres |
| FR2177636A1 (en) * | 1972-03-31 | 1973-11-09 | Kimberly Clark Co | Absorbent cellulosic fibre products - by phosphorylating cellulose pulp fibres |
| US3821068A (en) * | 1972-10-17 | 1974-06-28 | Scott Paper Co | Soft,absorbent,fibrous,sheet material formed by avoiding mechanical compression of the fiber furnish until the sheet is at least 80% dry |
| US3919385A (en) * | 1972-11-24 | 1975-11-11 | Fmc Corp | Process for producing high fluid-holding fiber mass |
| US3804092A (en) * | 1973-01-15 | 1974-04-16 | Johnson & Johnson | Water dispersible nonwoven fabric |
| US4256111A (en) * | 1973-10-01 | 1981-03-17 | Kimberly-Clark Corporation | Filaments of chemically modified cellulose fibers and webs and products formed therefrom |
| US3997647A (en) * | 1973-10-01 | 1976-12-14 | Kimberly-Clark Corporation | Method of making filaments and webs of chemically modified cellulose fibers |
| JPS5193590A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1975-02-14 | 1976-08-17 |
-
1976
- 1976-12-21 SE SE7614342A patent/SE430609B/xx not_active IP Right Cessation
-
1977
- 1977-12-13 IE IE2525/77A patent/IE46213B1/en unknown
- 1977-12-13 US US05/860,250 patent/US4256877A/en not_active Expired - Lifetime
- 1977-12-19 AU AU31729/77A patent/AU504848B2/en not_active Expired
- 1977-12-19 AT AT0908177A patent/AT367298B/de not_active IP Right Cessation
- 1977-12-19 GB GB52776/77A patent/GB1570040A/en not_active Expired
- 1977-12-20 DK DK568477A patent/DK568477A/da not_active Application Discontinuation
- 1977-12-20 NO NO774387A patent/NO149972C/no unknown
- 1977-12-20 IT IT52298/77A patent/IT1093078B/it active
- 1977-12-20 YU YU03025/77A patent/YU302577A/xx unknown
- 1977-12-20 CA CA293,434A patent/CA1108364A/en not_active Expired
- 1977-12-20 CH CH1567577A patent/CH634234A5/de not_active IP Right Cessation
- 1977-12-20 FI FI773861A patent/FI68410C/fi not_active IP Right Cessation
- 1977-12-20 JP JP15350877A patent/JPS5384050A/ja active Granted
- 1977-12-21 LU LU78741A patent/LU78741A1/xx unknown
- 1977-12-21 NL NL7714216A patent/NL7714216A/xx not_active Application Discontinuation
- 1977-12-21 BE BE183692A patent/BE862130A/xx not_active IP Right Cessation
- 1977-12-21 FR FR7738593A patent/FR2375362A1/fr active Granted
- 1977-12-21 DE DE2757096A patent/DE2757096C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2757096A1 (de) | 1978-06-22 |
| LU78741A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-07-11 |
| FI773861A7 (fi) | 1978-06-22 |
| ATA908177A (de) | 1981-11-15 |
| NL7714216A (nl) | 1978-06-23 |
| JPS5384050A (en) | 1978-07-25 |
| NO149972B (no) | 1984-04-16 |
| FR2375362B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-08-22 |
| SE430609B (sv) | 1983-11-28 |
| NO149972C (no) | 1984-07-25 |
| CH634234A5 (de) | 1983-01-31 |
| SE7614342L (sv) | 1978-06-22 |
| YU302577A (en) | 1983-01-21 |
| DE2757096C2 (de) | 1982-07-29 |
| IT1093078B (it) | 1985-07-19 |
| FI68410B (fi) | 1985-05-31 |
| FI68410C (fi) | 1985-09-10 |
| JPS5745179B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-09-27 |
| US4256877A (en) | 1981-03-17 |
| AU504848B2 (en) | 1979-11-01 |
| FR2375362A1 (fr) | 1978-07-21 |
| IE46213B1 (en) | 1983-04-06 |
| AU3172977A (en) | 1979-06-28 |
| GB1570040A (en) | 1980-06-25 |
| AT367298B (de) | 1982-06-25 |
| NO774387L (no) | 1978-06-22 |
| IE46213L (en) | 1978-06-21 |
| DK568477A (da) | 1978-06-22 |
| BE862130A (fr) | 1978-06-21 |
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