EP0666763A1 - Wundenschutzverband - Google Patents
WundenschutzverbandInfo
- Publication number
- EP0666763A1 EP0666763A1 EP93919367A EP93919367A EP0666763A1 EP 0666763 A1 EP0666763 A1 EP 0666763A1 EP 93919367 A EP93919367 A EP 93919367A EP 93919367 A EP93919367 A EP 93919367A EP 0666763 A1 EP0666763 A1 EP 0666763A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chitosan
- wound
- microcrystalline
- wound protecting
- dressing
- 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.)
- Withdrawn
Links
- 229920001661 Chitosan Polymers 0.000 claims abstract description 114
- 239000000203 mixture Substances 0.000 claims abstract description 52
- 239000006185 dispersion Substances 0.000 claims abstract description 46
- 239000012528 membrane Substances 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000036760 body temperature Effects 0.000 claims abstract 2
- 206010052428 Wound Diseases 0.000 claims description 91
- 208000027418 Wounds and injury Diseases 0.000 claims description 91
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 54
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 48
- 235000019441 ethanol Nutrition 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000443 aerosol Substances 0.000 claims description 15
- HOWJQLVNDUGZBI-UHFFFAOYSA-N butane;propane Chemical compound CCC.CCCC HOWJQLVNDUGZBI-UHFFFAOYSA-N 0.000 claims description 10
- 239000003380 propellant Substances 0.000 claims description 10
- 230000006196 deacetylation Effects 0.000 claims description 9
- 238000003381 deacetylation reaction Methods 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 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 claims description 7
- 235000010410 calcium alginate Nutrition 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 7
- 235000010413 sodium alginate Nutrition 0.000 claims description 7
- 239000000648 calcium alginate Substances 0.000 claims description 6
- 229960002681 calcium alginate Drugs 0.000 claims description 6
- OKHHGHGGPDJQHR-YMOPUZKJSA-L calcium;(2s,3s,4s,5s,6r)-6-[(2r,3s,4r,5s,6r)-2-carboxy-6-[(2r,3s,4r,5s,6r)-2-carboxylato-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylate Chemical compound [Ca+2].O[C@@H]1[C@H](O)[C@H](O)O[C@@H](C([O-])=O)[C@H]1O[C@H]1[C@@H](O)[C@@H](O)[C@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@H](O2)C([O-])=O)O)[C@H](C(O)=O)O1 OKHHGHGGPDJQHR-YMOPUZKJSA-L 0.000 claims description 6
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 239000000661 sodium alginate Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 4
- 241000894006 Bacteria Species 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 claims description 2
- 239000013081 microcrystal Substances 0.000 claims 1
- 229920002101 Chitin Polymers 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 230000000172 allergic effect Effects 0.000 description 11
- 208000010668 atopic eczema Diseases 0.000 description 11
- 239000000499 gel Substances 0.000 description 8
- 230000007794 irritation Effects 0.000 description 7
- 230000029663 wound healing Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000035876 healing Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 229940005550 sodium alginate Drugs 0.000 description 4
- 102000016943 Muramidase Human genes 0.000 description 3
- 108010014251 Muramidase Proteins 0.000 description 3
- 108010062010 N-Acetylmuramoyl-L-alanine Amidase Proteins 0.000 description 3
- 239000002313 adhesive film Substances 0.000 description 3
- 229920000615 alginic acid Polymers 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- 229960000274 lysozyme Drugs 0.000 description 3
- 239000004325 lysozyme Substances 0.000 description 3
- 235000010335 lysozyme Nutrition 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 2
- OVRNDRQMDRJTHS-FMDGEEDCSA-N N-acetyl-beta-D-glucosamine Chemical class CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O OVRNDRQMDRJTHS-FMDGEEDCSA-N 0.000 description 2
- 229940072056 alginate Drugs 0.000 description 2
- 208000030961 allergic reaction Diseases 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940088598 enzyme Drugs 0.000 description 2
- -1 fibres Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- MSWZFWKMSRAUBD-IVMDWMLBSA-N 2-amino-2-deoxy-D-glucopyranose Chemical compound N[C@H]1C(O)O[C@H](CO)[C@@H](O)[C@@H]1O MSWZFWKMSRAUBD-IVMDWMLBSA-N 0.000 description 1
- 102000012286 Chitinases Human genes 0.000 description 1
- 108010022172 Chitinases Proteins 0.000 description 1
- 241000581444 Clinidae Species 0.000 description 1
- 241000238424 Crustacea Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- IAJILQKETJEXLJ-UHFFFAOYSA-N Galacturonsaeure Natural products O=CC(O)C(O)C(O)C(O)C(O)=O IAJILQKETJEXLJ-UHFFFAOYSA-N 0.000 description 1
- FZHXIRIBWMQPQF-UHFFFAOYSA-N Glc-NH2 Natural products O=CC(N)C(O)C(O)C(O)CO FZHXIRIBWMQPQF-UHFFFAOYSA-N 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- 229920001077 Poly(N-acetyl glucosamine) Polymers 0.000 description 1
- 108010039918 Polylysine Proteins 0.000 description 1
- 241001275899 Salta Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- IAJILQKETJEXLJ-RSJOWCBRSA-N aldehydo-D-galacturonic acid Chemical compound O=C[C@H](O)[C@@H](O)[C@@H](O)[C@H](O)C(O)=O IAJILQKETJEXLJ-RSJOWCBRSA-N 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- 150000004781 alginic acids Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000003511 endothelial effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 210000004969 inflammatory cell Anatomy 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010339 medical test Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000008249 pharmaceutical aerosol Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000656 polylysine Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 210000002460 smooth muscle Anatomy 0.000 description 1
- 229940083542 sodium Drugs 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- 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
-
- 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
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0009—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials
- A61L26/0023—Polysaccharides
-
- 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
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0009—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials
- A61L26/0052—Mixtures of macromolecular compounds
-
- 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
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0061—Use of materials characterised by their function or physical properties
- A61L26/0076—Sprayable compositions
Definitions
- the well-known wound protecting dressings contain standard chitosan in the form of organic or inorganic salts soluble in water or diluted organic acids, or derivatives of chitin and chitosan soluble in water or organic solvents. Preparation of chitin or chitosan derivatives needs special complicated technologies as well as brings some problems for processing and purification.
- a standard chitosan saltas soluble in water and diluted organic acids having also acidic reaction, usually with pH 3 - 5, cause an irritation or allergic reaction of wound healing or burned place.
- the standard chitosan salt film formed on a skin does not resist against water and will be easily dissolved into washing water or moisture. This type of dressing needs several repetitions to obtain suitable healing.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials For Medical Uses (AREA)
- Medicinal Preparation (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI924101A FI95207C (fi) | 1992-09-14 | 1992-09-14 | Haavansuojaside |
| FI924101 | 1992-09-14 | ||
| PCT/FI1993/000364 WO1994006484A1 (en) | 1992-09-14 | 1993-09-14 | Wound protecting dressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0666763A1 true EP0666763A1 (de) | 1995-08-16 |
Family
ID=8535859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93919367A Withdrawn EP0666763A1 (de) | 1992-09-14 | 1993-09-14 | Wundenschutzverband |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0666763A1 (de) |
| AU (1) | AU4962693A (de) |
| FI (1) | FI95207C (de) |
| NO (1) | NO950968D0 (de) |
| WO (1) | WO1994006484A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2328443B (en) * | 1997-08-21 | 2001-09-05 | Reckitt & Colmann Prod Ltd | In situ formation of pharmaceutically acceptable polymeric material |
| US6200595B1 (en) * | 1998-04-24 | 2001-03-13 | Kuraray Co., Ltd. | Medical adhesive |
| AUPQ419099A0 (en) * | 1999-11-23 | 1999-12-16 | Ko, Thomas Sai Ying | Novel compositions and methods |
| AU2003263332A1 (en) * | 2002-09-11 | 2004-04-30 | Johnson And Johnson Medical Limited | Wound dressings for the treatment of wound infection |
| JP5752123B2 (ja) * | 2009-09-01 | 2015-07-22 | メドヴェント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | キトサン組織被覆材 |
| RU2640084C2 (ru) | 2011-11-13 | 2017-12-26 | Крезилон, Инк. | Сшиваемые in situ полимерные композиции и способы для них |
| ES2777208T3 (es) * | 2012-09-21 | 2020-08-04 | Nitto Denko Corp | Cuerpo de soporte para parche transdérmico o preparación transdérmica, y parche transdérmico y preparación transdérmica que usan el mismo |
| EP3569262A1 (de) | 2013-03-14 | 2019-11-20 | Tricol Biomedical, Inc. | Bioverträgliche und bioabsorbierbare derivatisierte chitosanzusammensetzungen |
| EP3310402B1 (de) * | 2015-06-22 | 2021-04-07 | Cresilon, Inc. | Hochwirksames hämostatisches haftpolymergerüst |
| CN115364267B (zh) * | 2022-08-11 | 2023-07-25 | 江南大学 | 茶多酚结合多糖基一体成型的双重多孔结构医用敷料及其制备方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0319536A1 (de) * | 1986-08-18 | 1989-06-14 | Firextra Oy | Modifizierte fasererzeugnisse und deren verfahren zur herstellung. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286087A (en) * | 1979-09-21 | 1981-08-25 | University Of Delaware | Chitin powder and process for making it |
| US4929722A (en) * | 1986-06-06 | 1990-05-29 | Union Carbide Chemicals And Plastics Company Inc. | Acid decrystallization of aminopolysaccharides and derivatives thereof |
| FI83426C (fi) * | 1989-06-30 | 1991-07-10 | Firextra Oy | Foerfarande foer kontinuerlig framstaellning av mikrokristallin kitosan. |
-
1992
- 1992-09-14 FI FI924101A patent/FI95207C/fi active
-
1993
- 1993-09-14 WO PCT/FI1993/000364 patent/WO1994006484A1/en not_active Application Discontinuation
- 1993-09-14 AU AU49626/93A patent/AU4962693A/en not_active Abandoned
- 1993-09-14 EP EP93919367A patent/EP0666763A1/de not_active Withdrawn
-
1995
- 1995-03-14 NO NO950968A patent/NO950968D0/no unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0319536A1 (de) * | 1986-08-18 | 1989-06-14 | Firextra Oy | Modifizierte fasererzeugnisse und deren verfahren zur herstellung. |
Also Published As
| Publication number | Publication date |
|---|---|
| AU4962693A (en) | 1994-04-12 |
| FI95207B (fi) | 1995-09-29 |
| WO1994006484A1 (en) | 1994-03-31 |
| NO950968L (no) | 1995-03-14 |
| FI924101A (fi) | 1994-03-15 |
| FI95207C (fi) | 1996-01-10 |
| FI924101A0 (fi) | 1992-09-14 |
| NO950968D0 (no) | 1995-03-14 |
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Legal Events
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|---|---|---|---|
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| 17P | Request for examination filed |
Effective date: 19950412 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB IT LI NL |
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| 17Q | First examination report despatched |
Effective date: 19970610 |
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| GRAG | Despatch of communication of intention to grant |
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| GRAG | Despatch of communication of intention to grant |
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| GRAG | Despatch of communication of intention to grant |
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