WO2002083247A1 - Löschwasser-additive - Google Patents
Löschwasser-additive Download PDFInfo
- Publication number
- WO2002083247A1 WO2002083247A1 PCT/EP2002/001296 EP0201296W WO02083247A1 WO 2002083247 A1 WO2002083247 A1 WO 2002083247A1 EP 0201296 W EP0201296 W EP 0201296W WO 02083247 A1 WO02083247 A1 WO 02083247A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- use according
- mol
- polymer
- sulfonic acid
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000000654 additive Substances 0.000 title claims abstract description 20
- 229920000642 polymer Polymers 0.000 claims abstract description 63
- 239000000178 monomer Substances 0.000 claims abstract description 38
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 20
- 150000003839 salts Chemical class 0.000 claims description 17
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 16
- 239000011780 sodium chloride Substances 0.000 claims description 15
- 239000013535 sea water Substances 0.000 claims description 13
- 230000000996 additive effect Effects 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 239000003431 cross linking reagent Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 10
- 239000004815 dispersion polymer Substances 0.000 claims description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 230000008961 swelling Effects 0.000 claims description 5
- PRAMZQXXPOLCIY-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)ethanesulfonic acid Chemical compound CC(=C)C(=O)OCCS(O)(=O)=O PRAMZQXXPOLCIY-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 claims description 3
- MVYVKSBVZFBBPL-UHFFFAOYSA-N 2-(prop-2-enoylamino)propane-1-sulfonic acid Chemical compound OS(=O)(=O)CC(C)NC(=O)C=C MVYVKSBVZFBBPL-UHFFFAOYSA-N 0.000 claims description 2
- SQVSEQUIWOQWAH-UHFFFAOYSA-N 2-hydroxy-3-(2-methylprop-2-enoyloxy)propane-1-sulfonic acid Chemical compound CC(=C)C(=O)OCC(O)CS(O)(=O)=O SQVSEQUIWOQWAH-UHFFFAOYSA-N 0.000 claims description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical class OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 claims description 2
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 claims description 2
- GQTFHSAAODFMHB-UHFFFAOYSA-N 2-prop-2-enoyloxyethanesulfonic acid Chemical compound OS(=O)(=O)CCOC(=O)C=C GQTFHSAAODFMHB-UHFFFAOYSA-N 0.000 claims description 2
- KFNGWPXYNSJXOP-UHFFFAOYSA-N 3-(2-methylprop-2-enoyloxy)propane-1-sulfonic acid Chemical compound CC(=C)C(=O)OCCCS(O)(=O)=O KFNGWPXYNSJXOP-UHFFFAOYSA-N 0.000 claims description 2
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical class CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 2
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical class OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical class CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 150000003926 acrylamides Chemical class 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- -1 aromatic vinyl sulfonic acids Chemical class 0.000 claims description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 2
- 229920002959 polymer blend Polymers 0.000 claims description 2
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 claims description 2
- NYUTUWAFOUJLKI-UHFFFAOYSA-N 3-prop-2-enoyloxypropane-1-sulfonic acid Chemical compound OS(=O)(=O)CCCOC(=O)C=C NYUTUWAFOUJLKI-UHFFFAOYSA-N 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 description 28
- 239000006185 dispersion Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 8
- 239000000499 gel Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- 238000007720 emulsion polymerization reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- IAUGBVWVWDTCJV-UHFFFAOYSA-N 1-(prop-2-enoylamino)propane-1-sulfonic acid Chemical compound CCC(S(O)(=O)=O)NC(=O)C=C IAUGBVWVWDTCJV-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- IZXHPYDBFMESHF-UHFFFAOYSA-M sodium;1-(prop-2-enoylamino)propane-1-sulfonate Chemical compound [Na+].CCC(S([O-])(=O)=O)NC(=O)C=C IZXHPYDBFMESHF-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002522 swelling effect Effects 0.000 description 2
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229940048053 acrylate Drugs 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229920000831 ionic polymer Polymers 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- BWYYYTVSBPRQCN-UHFFFAOYSA-M sodium;ethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=C BWYYYTVSBPRQCN-UHFFFAOYSA-M 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0028—Liquid extinguishing substances
- A62D1/0035—Aqueous solutions
- A62D1/0042—"Wet" water, i.e. containing surfactant
Definitions
- the present invention relates to the use of water-swellable polymers, which are based at least in part on monomers containing at least monounsaturated sulfonic acid groups, as an additive for extinguishing water which has an increased NaCi content in fire prevention and fire fighting.
- polymer additives with thickening properties are used to increase the viscosity of the fire extinguishing water in order to achieve an improved adhesion of the fire extinguishing agent to surfaces, in particular to inclined surfaces, in comparison with water.
- No. 5,274,018 describes the disturbance of the swellability of polymers by soluble salts such as sodium chloride. Such disorders often occur when using water-absorbing polymer gels in medical, chemical and agricultural applications.
- the swellability of the polymer gels described results from the electrostatic repulsion of the charges on the polymer chains and the osmotic pressure of the counterions.
- the swellability of such polymers is greatly reduced in saline.
- Dissolved salts such as sodium chloride have two effects on ionic polymer gels. They shield the polymer charges and compensate for the osmotic imbalance through the presence of counterions inside and outside the gel matrix. The dissolved ions thus undesirably convert the ionic gel into a non-swellable nonionic gel.
- the object of the present invention is therefore to identify water-swellable polymers which can be used as additives for extinguishing water with a high salt content and which essentially retain their swelling properties in saline water.
- the object is achieved according to the invention by the use of water-swellable polymers, which are based at least in part on monomers containing at least monounsaturated sulfonic acid groups, as an additive for fire-fighting water containing saline in fire prevention and fire fighting.
- water-swellable polymers which are based at least in part on monomers containing at least monounsaturated sulfonic acid groups, as an additive for saline-containing extinguishing water, which has at least 0.8% by weight or more NaCl, surprisingly leads to a significant increase in the salt content despite the high salt content Viscosity of the extinguishing water.
- the polymers used according to the invention allow, for example, the use of sea water as extinguishing water, the viscosity of which is increased by the polymers.
- saline-containing extinguishing water is to be understood as any aqueous liquid which contains table salt (NaCl) as the largest salt fraction and which preferably has a total salt content of 1 to 28% by weight, particularly preferably 1 to 10% by weight and very particularly preferably 2 to 5% by weight of total salt content.
- Saline water with a total salt content of 3 to 4% by weight is most preferred.
- sea water as saline-containing extinguishing water, as described for example in Römps Chemie Lexikon (Volume 3, 8th edition, p. 1596, 1983).
- the polymers to be used according to the invention are at least partly prepared from at least one monounsaturated monomer containing sulfonic acid groups, preferably from aliphatic or aromatic vinylsulfonic acids, particularly preferably allylsulfonic acid, methallylsulfonic acid, styrene sulfonic acid, acrylic sulfonic acid or methacrylic sulfonic acid, very particularly preferably sulfoethyl acrylate, sulfoethyl methacrylate, sulfoethyl methacrylate, Sulfopropyl methacrylate, 2-hydroxy-3-methacryloxypropyl sulfonic acid and most preferably 2-acrylamidopropane sulfonic acid and / or a water soluble salt of the listed compounds.
- a mixture of at least two of the substances listed above can also be used.
- Polymers that are based wholly or in part on at least one, in particular at least one, of the above-mentioned monomers containing sulfonic acid groups are largely salt-sensitive with regard to their swelling properties in extinguishing water containing saline.
- the polymers to be used preferably consist of at least 25 to 100 mol%, preferably 40 to 90 mol% and particularly preferably 50 to 75 mol% of a monomer containing sulfonic acid groups or a plurality of monomers containing sulfonic acid groups.
- polymers which contain monomers containing sulfonic acid groups and non-ionic monomers as a copolymer.
- nonionic monomers suitable for copolymerization are, for example, methacrylamide, n-alkyl-substituted acrylamides, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, C 1 -C 4 -alkyl (meth) acrylate, vinyl acetate and preferably acrylamide.
- the copolymers which can be used according to the invention preferably contain 0 to 75 mol%, preferably 10 to 60 mol% and very particularly preferably 25 to 50 mol% of a nonionic monomer.
- the polymers are crosslinked. Suitable crosslinking agents are preferably all multi-functional crosslinking agents. Crosslinking agents with at least two olefinically unsaturated double bonds are particularly preferred.
- the degree of crosslinking significantly influences the viscosity and thus the adhesive properties of the resulting polymer.
- compositions of the polymers to be used according to the invention consist of at least
- C) optionally 0.1 to 3 mol%, preferably 0.15 to 1 mol%, particularly preferably 0.2 to 0.5 mol% of a crosslinking agent.
- At least one residual monomer destroyer is preferably added to the polymers to be used according to the invention.
- Such an additive significantly increases the environmental compatibility of polymer additives for use in fire-fighting water.
- Residual monomer destroyers in the sense of the present invention are substances which modify polymerizable monomers by a chemical reaction in such a way that they can no longer be polymerized, so that they no longer represent monomers.
- substances can be used which react with the double bond contained in the monomers and / or substances which can initiate further polymerization.
- Residual monomer destroyers within the meaning of the present invention are disclosed in detail in patent application DE 100 41 395.1, in particular on pages 6 to 7, which is hereby introduced as a reference and is therefore considered part of the disclosure.
- the at least partially polymers containing sulfonic acid groups are preferably related to the salt-containing extinguishing water in an amount of 0.25 to 10% by weight, preferably 0.5 to 5% by weight, particularly preferably in an amount of 1 to 3% by weight added to the extinguishing water mixed with polymer.
- the polymers to be used according to the invention are preferably in the form of a water-in-oil polymer dispersion or a water-in-water polymer dispersion.
- the additives according to the invention are preferably used in the form of water-in-oil or water-in-water polymer dispersions which are added to the extinguishing water as the primary dispersion.
- the above-mentioned primary dispersions advantageously accelerate the mixing and swelling process.
- Water-in-oil polymer dispersions within the meaning of the present invention and processes for their preparation are in EP 0 774 279 B1, for example on page 3, lines 3 to 55 and pages 7 to 8, and DE 100 41 395.1, for example on the pages 3 to 5, which are hereby introduced as a reference and are therefore considered part of the disclosure.
- Water-in-oil polymer dispersions consist of a continuous oil phase in which particles of a mostly cross-linked water-swellable polymer are dispersed.
- the polymer particles usually have particle sizes in the range from 0.1 to 10 ⁇ m, preferably from less than 2 ⁇ m, which results in extremely short swelling times of less than 3 seconds.
- These dispersions are preferably produced by reverse-phase emulsion polymerization.
- Emulsifiers in a continuous organic phase that is practically immiscible with water, finely divided, crosslinked, water-swellable polymers.
- the monomers are added to the organic phase as an aqueous monomer solution consisting of suitable monomers and preferably at least one bifunctional crosslinking agent.
- aqueous monomer solution consisting of suitable monomers and preferably at least one bifunctional crosslinking agent.
- organic phases of this type are specified, for example, in DE 100 41 395.1, page 4, last paragraph, which is hereby introduced as a reference and is therefore considered part of the disclosure.
- Water-in-water polymer dispersions are a class of products which are produced by polymerization in the liquid phase, for example by emulsion or suspension polymerization. Monomers or a monomer solution are added to an aqueous phase containing at least one dispersant and the resulting mixture is polymerized.
- the particle sizes of the polymers of these primary dispersions are in the range from 0.05 to 10 ⁇ m, preferably in the range from 0.5 to 5 ⁇ m, very particularly preferably in the range from 0.5 to 2.
- Dispersants and their use are, for example, on the first two Paragraphs from page 6 of DE 100 41 394.3 described.
- Water-in-water polymer dispersions for fire prevention have the advantage that such dispersions are ecologically better on the one hand and have less flammable components on the other.
- Water-in-oil and water-in-water polymer dispersions with polymer particle particles whose largest dimension is less than 10 ⁇ m, preferably less than 2 ⁇ m and particularly preferably less than 1 ⁇ m are particularly suitable.
- the swelling time of such water-swellable polymer dispersions to be used according to the invention is preferably not more than three minutes, particularly preferably not more than 30 seconds and very particularly preferably not more than 10 seconds.
- Such polymer dispersions are extremely suitable for use in continuously mixing outlet devices for fire fighting or prevention.
- polymers have improved environmental compatibility and can be prepared, for example, by adding residual monomer destroyers after the polymerization has ended.
- Such polymers are particularly suitable for extinguishing or fire prevention projects in the wild, i.e. away from places that are equipped with a sewage system or water retention basin, such as in forest, bush, island or ship fires.
- At least a viscosity of the extinguishing liquid of 100 mPa s is achieved by adding the polymer to the extinguishing water according to the invention. It has also proven to be advantageous in practice to add the additives to the electrolyte-containing extinguishing water in an amount sufficient to increase the viscosity of the resulting extinguishing water / polymer mixture to over 1000 mPa s, measured according to Brookfield (1 rpm, 20 ° C.) , preferably to be raised to 5000 to 50,000 mPa s.
- polymer dispersions are obtained with electrolyte-containing water (extinguishing water), preferably in a concentration of 0.25 to 10% by volume, preferably 0.5 to 5% by volume and particularly preferably 1 to 3% by volume introduced onto the water mixed with polymer.
- electrolyte-containing water preferably in a concentration of 0.25 to 10% by volume, preferably 0.5 to 5% by volume and particularly preferably 1 to 3% by volume introduced onto the water mixed with polymer.
- extinguishing water additive mixtures to be used according to the invention can be applied to the surfaces affected by the fire with any conventional fire-fighting device. Such devices are described, for example, in EP 0 774 279 B1 and in DE 299 04 848 U1, which are hereby introduced as a reference and are therefore part of the disclosure.
- the mixing of the additive with the salt-containing extinguishing water preferably takes place continuously in a conventional fire-fighting outlet device.
- natural salty fire water sources such as brackish water or seawater can be used without delay, for example in the event of fires on ships and oil rigs or in ports or on the coast.
- the additive can also be mixed with the extinguishing water in batches before it is applied to a surface, preferably a vertical, inclined or overhanging surface, for fire prevention and / or fire fighting, as described above, by means of an outlet device.
- Viscosity spindle II 1 rpm 11,600 mPas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Fire-Extinguishing Compositions (AREA)
- Fireproofing Substances (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/474,522 US7608208B2 (en) | 2001-04-10 | 2002-02-08 | Additives for water for fire protection |
EP02727321A EP1379315B1 (de) | 2001-04-10 | 2002-02-08 | Löschwasser-additive |
CA002445039A CA2445039C (en) | 2001-04-10 | 2002-02-08 | Additives for water for fire protection |
DE50210162T DE50210162D1 (de) | 2001-04-10 | 2002-02-08 | Löschwasser-additive |
AU2002257580A AU2002257580B2 (en) | 2001-04-10 | 2002-02-08 | Additives for water for fire protection |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10118020A DE10118020A1 (de) | 2001-04-10 | 2001-04-10 | Löschwasser-Additive |
DE10118020.9 | 2001-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002083247A1 true WO2002083247A1 (de) | 2002-10-24 |
Family
ID=7681188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/001296 WO2002083247A1 (de) | 2001-04-10 | 2002-02-08 | Löschwasser-additive |
Country Status (7)
Country | Link |
---|---|
US (1) | US7608208B2 (de) |
EP (1) | EP1379315B1 (de) |
AT (1) | ATE362388T1 (de) |
AU (1) | AU2002257580B2 (de) |
CA (1) | CA2445039C (de) |
DE (2) | DE10118020A1 (de) |
WO (1) | WO2002083247A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10041395A1 (de) | 2000-08-23 | 2002-03-07 | Stockhausen Chem Fab Gmbh | Polymerdispersionen zur Feuerverhütung und -bekämpfung mit verbesserter Umweltverträglichkeit |
DE10041394A1 (de) * | 2000-08-23 | 2002-03-07 | Stockhausen Chem Fab Gmbh | Verwendung von Wasser-in-Wasser-Polymerdispersionen zur Feuerverhütung und -bekämpfung |
DE10118020A1 (de) | 2001-04-10 | 2002-10-17 | Stockhausen Chem Fab Gmbh | Löschwasser-Additive |
DE102007050839A1 (de) | 2007-10-24 | 2009-04-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Kohlehydratbasierende Additive mit Klebeeffekt für wässrige Feuer- und Brandsschutzmittel, deren Herstellung und Verwendung |
US20100063180A1 (en) * | 2008-09-05 | 2010-03-11 | Seungkoo Kang | Fire protection and/or fire fighting additives, associated compositions, and associated methods |
WO2011041243A2 (en) | 2009-09-30 | 2011-04-07 | Earthclean Corporation | Fire suppression biodegradable suspension forming compositions |
WO2011127037A1 (en) | 2010-04-05 | 2011-10-13 | Earthclean Corporation | Non-aqueous fire suppressing liquid concentrate |
MX350813B (es) | 2011-10-19 | 2017-09-21 | Solenis Technologies Cayman Lp | Composicion que comprende un surfactante no ionico y un polimero ionico. |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5392598A (en) * | 1977-01-26 | 1978-08-14 | Hochiki Co | Method of extinguishing fire by viscous seawater |
US5616273A (en) * | 1994-08-11 | 1997-04-01 | Dynax Corporation | Synergistic surfactant compositions and fire fighting concentrates thereof |
EP0774279A1 (de) * | 1995-11-14 | 1997-05-21 | Stockhausen, Inc. | Wasser-Zusatz und Verfahren zur Verhütung und Löschen von Bränden |
Family Cites Families (102)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB289630A (en) * | 1927-04-25 | 1928-05-03 | British Dyestuffs Corp Ltd | Improvements in the preparation of foams for fire extinction |
US3229769A (en) * | 1963-01-28 | 1966-01-18 | Dow Chemical Co | Method for controlling the spread of fire |
US3354084A (en) | 1964-06-24 | 1967-11-21 | Dow Chemical Co | Aqueous gel of water-swellable acrylic polymer and non-ionic filler |
US3758641A (en) | 1971-01-21 | 1973-09-11 | Dow Chemical Co | Adhesion of polymer gels to cellulose |
US3728258A (en) | 1971-06-02 | 1973-04-17 | Factory Mutual Res Corp | Self-extinguishing flammable mixtures |
US3780006A (en) | 1971-10-26 | 1973-12-18 | Dow Chemical Co | Removal of monomer from acrylamide polymers with sulfur dioxide |
CA1074204A (en) | 1975-11-11 | 1980-03-25 | Byron C. Chambers | Composition and method for dispersing high molecular weight flocculant polymers in water |
US4384988A (en) | 1980-04-10 | 1983-05-24 | L.M.C. Inc. | Fire protection water barrier which is a gel composition of high water content and high viscosity |
JPS5832607A (ja) * | 1981-08-20 | 1983-02-25 | Kao Corp | 吸水性に優れた吸水材料の製造法 |
US4610311A (en) | 1983-02-15 | 1986-09-09 | Sanitek Products, Inc. | Method for reducing the aerial drift of aqueous preparations |
DE3318218A1 (de) | 1983-05-19 | 1984-11-22 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von wasser-in-wasser-sekundaerdispersionen von wasserloeslichen polymerisaten und deren verwendung als flockungsmittel |
DE3429379A1 (de) * | 1983-08-10 | 1985-02-28 | Kao Corp., Tokio/Tokyo | Verfahren zur herstellung eines hochreaktiven wasserabsorbierenden harzes |
US4624320A (en) | 1984-01-06 | 1986-11-25 | Romaine John W | Fire blanket |
US4617359A (en) * | 1984-09-12 | 1986-10-14 | The Goodyear Tire & Rubber Company | High molecular weight polyacrylamide synthesis |
US4978460A (en) | 1985-05-03 | 1990-12-18 | Bluecher Hubert | Aqueous swollen macromolecule-containing system as water for firefighting |
US5190110A (en) | 1985-05-03 | 1993-03-02 | Bluecher Hubert | Use of an aqueous swollen macromolecule-containing system as water for fire fighting |
DE3613081A1 (de) * | 1986-04-18 | 1987-10-29 | Basf Ag | Verfahren zur herstellung perlfoermiger polymerisate auf basis von wasserloeslichen ethylenisch ungesaettigten monomeren |
EP0289338B2 (de) * | 1987-04-30 | 2000-03-22 | Nippon Shokubai Co., Ltd. | Hydrophyles Polymer und Verfahren zur Herstellung |
DE3724709A1 (de) | 1987-07-25 | 1989-02-02 | Stockhausen Chem Fab Gmbh | Verfahren zur herstellung von polymerisaten mit niedrigem restmonomergehalt |
US4942189A (en) | 1987-11-02 | 1990-07-17 | Exxon Research And Engineering Company | Interfacial viscosification of aqueous solutions utilizing interpolymer complex |
US4799962A (en) | 1987-12-24 | 1989-01-24 | Aqualon Company | Water-soluble polymer dispersion |
CA2001397A1 (en) | 1988-10-28 | 1990-04-28 | Tadao Shimomura | Method for production of acrylate and acrylate-containing polymer |
EP0384167B1 (de) | 1989-01-31 | 1994-07-06 | Union Carbide Chemicals And Plastics Company, Inc. | Polysaccharide mit Alkaryl- oder Aralkyl- Hydrophoben und Latexzusammensetzungen, die die Polysaccharide enthalten |
US4990608A (en) | 1989-06-07 | 1991-02-05 | Aqualon Company | Diaphragm wall construction gelatin composition |
US5001231A (en) | 1989-06-07 | 1991-03-19 | Aqualon Company | Invert emulsion polysaccharide slurry |
DE3926169A1 (de) * | 1989-08-08 | 1991-02-14 | Basf Ag | Verfahren zur verbesserung der wasseraufnahmekapazitaet von vernetzten, wasserquellbaren polymeren |
WO1991003497A1 (en) | 1989-09-04 | 1991-03-21 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Method of preparing water-absorbent resin |
USH1077H (en) | 1990-05-21 | 1992-07-07 | Interfacial viscosification of aqueous solutions utilizing interpolymer complexes | |
US5437719A (en) | 1990-09-21 | 1995-08-01 | Multicolor Specialties, Inc. | Polyurethane-based aqueous multicolor paint |
US5114485A (en) | 1990-09-21 | 1992-05-19 | Multicolor Specialties, Inc. | Water-in-water multicolor paint and method |
US5199980A (en) | 1990-09-21 | 1993-04-06 | Multicolor Specialties, Inc. | Polyurethane-based water-in-water multicolor paint and method for making |
US5480480A (en) | 1990-09-21 | 1996-01-02 | Multicolor Specialties, Inc. | Aqueous multicolor paint |
US5314535A (en) | 1990-09-21 | 1994-05-24 | Multicolor Specialties, Inc. | Polyurethane-based water-in-water multicolor paint and method for making |
US5318619A (en) | 1990-09-21 | 1994-06-07 | Multicolor Specialties, Inc. | Polyurethane-based aqueous multicolor paint |
US5114484A (en) | 1990-09-21 | 1992-05-19 | Multicolor Specialties, Inc. | Water-in-water multicolor paint and process for making same |
US5126390A (en) | 1990-11-23 | 1992-06-30 | Xerox Corporation | Coating formulations for the preparation of transfer elements |
DE4103969A1 (de) * | 1991-02-09 | 1992-08-13 | Basf Ag | Verfahren zur herstellung von feinteiligen, wasserloeslichen oder wasserquellbaren polymerisaten |
US5075344A (en) | 1991-05-20 | 1991-12-24 | The Dow Chemical Company | Process for producing a superabsorbent polymer |
US5274018A (en) * | 1991-05-24 | 1993-12-28 | Massachusetts Institute Of Technology | Salt tolerant super absorbents |
US5258069A (en) | 1992-02-24 | 1993-11-02 | Aqualon Company | Process for preparing joint, spackling and texture compounds for gypsum dry walls |
FI923097A (fi) | 1992-03-31 | 1993-10-01 | Metsae Serla Chemicals Oy | Stabilt cmc-slam |
EP0574260B1 (de) | 1992-06-10 | 1999-03-03 | Nippon Shokubai Co., Ltd. | Verfahren zur Herstellung eines hydrophilen Harzes |
DE4224537A1 (de) | 1992-07-27 | 1994-02-03 | Henkel Kgaa | Mineralische Additive zur Einstellung und/oder Regelung der Rheologie und Gelstruktur wässriger Flüssigphasen und ihre Verwendung |
US5362312A (en) | 1992-10-14 | 1994-11-08 | Merck & Co., Inc. | Carrier fluid for the suspension and delivery of water soluble polymers |
DE69317636T2 (de) | 1992-12-25 | 1998-11-12 | Nippon Catalytic Chem Ind | Absorber und Methode zur Herstellung eines absorbierenden Harzes |
US5629377A (en) | 1993-03-10 | 1997-05-13 | The Dow Chemical Company | Water absorbent resin particles of crosslinked carboxyl containing polymers and method of preparation |
US5334243A (en) | 1993-05-04 | 1994-08-02 | The Dow Chemical Company | Crack inhibitor for tape joint compositions |
DE4406624A1 (de) * | 1994-03-01 | 1995-09-07 | Roehm Gmbh | Vernetzte wasserlösliche Polymerdispersionen |
US5504123A (en) | 1994-12-20 | 1996-04-02 | Union Carbide Chemicals & Plastics Technology Corporation | Dual functional cellulosic additives for latex compositions |
US6214331B1 (en) | 1995-06-06 | 2001-04-10 | C. R. Bard, Inc. | Process for the preparation of aqueous dispersions of particles of water-soluble polymers and the particles obtained |
US5849210A (en) | 1995-09-11 | 1998-12-15 | Pascente; Joseph E. | Method of preventing combustion by applying an aqueous superabsorbent polymer composition |
US5985801A (en) | 1995-10-11 | 1999-11-16 | Baroid Technology, Inc. | Oil-free water-soluble hydroxyethyl cellulose liquid polymer dispersion |
US6100222A (en) | 1996-01-16 | 2000-08-08 | Great Lakes Chemical Corporation | High density, viscosified, aqueous compositions having superior stability under stress conditions |
WO1997026310A1 (en) | 1996-01-17 | 1997-07-24 | Great Lakes Chemical Corporation | Viscosification of high density brines |
JP3824695B2 (ja) | 1996-02-15 | 2006-09-20 | 出光興産株式会社 | 水溶性焼入剤の冷却特性回復方法及び冷却特性が回復した水溶性焼入剤 |
US5969012A (en) | 1997-05-29 | 1999-10-19 | Rhodia Inc. | Non-aqueous slurries of water soluble polymers |
PL187103B1 (pl) | 1996-06-07 | 2004-05-31 | Hercules Inc | Kompozycja pasty do zębów i sposób wytwarzania kompozycji pasty do zębów |
GR1002790B (el) | 1996-07-22 | 1997-10-17 | Μεθοδος και προιοντα κατασβεσης πυρκαιων. | |
US6750276B2 (en) | 1996-08-05 | 2004-06-15 | Arch Chemicals, Inc. | Waterborne soft-feeling coating composition with high gloss |
US5843320A (en) | 1996-10-03 | 1998-12-01 | Cytec Technology Corp. | Aqueous dispersions |
US6608124B1 (en) | 1996-10-03 | 2003-08-19 | Cytec Technology Corp. | Aqueous dispersions |
US5792366A (en) | 1996-10-03 | 1998-08-11 | Cytec Technology Corp. | Aqueous dispersions |
US5919854A (en) | 1996-10-03 | 1999-07-06 | Cytec Technology Corp. | Process for preparing aqueous dispersions |
US6702946B1 (en) | 1996-10-03 | 2004-03-09 | Cytec Technology Corp. | Aqueous dispersions |
US5696228A (en) | 1996-10-03 | 1997-12-09 | Cytec Technology Corp. | Process for producing substantially dry polymer particles from aqueous dispersions |
US6664326B1 (en) | 1996-10-03 | 2003-12-16 | Cytec Technology Corp. | Aqueous dispersions |
MY120719A (en) | 1997-01-20 | 2005-11-30 | Ciba Spec Chem Water Treat Ltd | Polymeric compositions and their production and uses |
MY118538A (en) | 1997-01-20 | 2004-12-31 | Ciba Spec Chem Water Treat Ltd | Polymeric compositions and their production and uses |
FR2758825A1 (fr) | 1997-01-24 | 1998-07-31 | Atochem Elf Sa | Dispersion aqueuses a base de polymeres hydrosolubles |
US6080704A (en) | 1997-03-11 | 2000-06-27 | Halliday; William S. | Glycols as gas hydrate inhibitors in drilling, drill-in, and completion fluids |
US6433056B1 (en) | 1997-10-17 | 2002-08-13 | Hercules Incorporated | Fluidized polymer suspension of hydrophobically modified poly(acetal- or ketal-polyether) polyurethane and polyacrylate |
FR2770526B1 (fr) | 1997-11-04 | 2000-01-14 | Atochem Elf Sa | Dispersions aqueuses stables a base de polymeres hydrosolubles contenant un dispersant cationique comportant des motifs hydrophobes |
BR9814693B1 (pt) | 1997-11-19 | 2011-04-19 | suspensões de polìmero fluidificado de polissacarìdeos catiÈnicos em emolientes e processo para preparação de uma composição para cuidado pessoal. | |
US6093769A (en) | 1997-11-19 | 2000-07-25 | Hercules Incorporated | Fluidized polymer suspensions of cationic polysaccharides in polyols and use thereof in personal care compositions |
US5985992A (en) | 1997-12-10 | 1999-11-16 | Cytec Technology Corp. | Anionic polymer products and processes |
US6262168B1 (en) | 1998-03-11 | 2001-07-17 | Cytec Technology Corp. | Aqueous dispersions |
DE19839199A1 (de) | 1998-08-28 | 2000-03-02 | Basf Ag | Verfahren zur Verminderung der Restmonomerenmenge in wässrigen Polymerdispersionen |
US6207796B1 (en) | 1998-11-18 | 2001-03-27 | Nippon Shokubai Co., Ltd. | Production process for hydrophilic polymer |
DE19900187C1 (de) | 1999-01-06 | 2000-06-15 | Stockhausen Chem Fab Gmbh | Verfahren zur Entwässerung von Klärschlämmen mit Plattenfiltern (Filterpressen) |
US6489270B1 (en) | 1999-01-07 | 2002-12-03 | Daniel P. Vollmer | Methods for enhancing wellbore treatment fluids |
US6635604B1 (en) | 1999-02-11 | 2003-10-21 | Baker Hughes Incorporated | Low molecular weight water soluble organic compounds as crystallization point suppressants in brines |
DE19909653A1 (de) * | 1999-03-05 | 2000-09-07 | Stockhausen Chem Fab Gmbh | Pulverförmige, vernetzte, wässrige Flüssigkeiten sowie Blut absorbierende Polymere, Verfahren zu ihrer Herstellung und ihre Verwendung |
US6818597B2 (en) | 2000-04-21 | 2004-11-16 | Benchmark Research & Technology, Inc. | Suspensions of water soluble polymers in surfactant free non-aqueous solvents |
US6454003B1 (en) * | 2000-06-14 | 2002-09-24 | Ondeo Nalco Energy Services, L.P. | Composition and method for recovering hydrocarbon fluids from a subterranean reservoir |
DE10041395A1 (de) | 2000-08-23 | 2002-03-07 | Stockhausen Chem Fab Gmbh | Polymerdispersionen zur Feuerverhütung und -bekämpfung mit verbesserter Umweltverträglichkeit |
DE10041394A1 (de) * | 2000-08-23 | 2002-03-07 | Stockhausen Chem Fab Gmbh | Verwendung von Wasser-in-Wasser-Polymerdispersionen zur Feuerverhütung und -bekämpfung |
DE10044156A1 (de) | 2000-09-06 | 2002-04-04 | Stockhausen Chem Fab Gmbh | Verfahren und Vorrichtung zur Teilchenagglomeration |
DE50105082D1 (de) * | 2000-10-19 | 2005-02-17 | Basf Ag | Vernetztes, wasserquellbares polymerisat und verfahren zu seiner herstellung |
DE10061483A1 (de) | 2000-12-08 | 2002-06-13 | Stockhausen Chem Fab Gmbh | Verfahren zur Herstellung von Wasser-in-Wasser-Polymerdispersionen |
US6641624B1 (en) | 2000-12-29 | 2003-11-04 | Ondeo Nalco Company | Method of preparing a synthetic fuel from coal |
US6964691B1 (en) | 2000-12-29 | 2005-11-15 | Nalco Company | Method of preparing a synthetic fuel from coal |
DE10118020A1 (de) | 2001-04-10 | 2002-10-17 | Stockhausen Chem Fab Gmbh | Löschwasser-Additive |
DE10119685A1 (de) | 2001-04-20 | 2002-10-24 | Stockhausen Chem Fab Gmbh | Entfernung nicht-wasserlöslicher Substanzen aus Metallaufschlüssen |
FR2824063B1 (fr) | 2001-04-26 | 2004-03-05 | Atofina | Procede de fabrication du chlorure de l'acrylate de 1,3-bis (dimethylbenzylammonium) isopropyle seul ou en melange d'autres monomeres et (co) polymers correspondant |
US6712897B2 (en) | 2001-05-21 | 2004-03-30 | National Gypsum Properties, Llc. | Pre-blend composition, and method of making joint compound using same |
DE10129854A1 (de) | 2001-06-21 | 2003-01-02 | Bayer Ag | Wässrige Sekundärdispersionen |
DE60223762T2 (de) | 2001-08-10 | 2008-10-23 | Unilever N.V. | Zusammensetzung enthaltend Diätfasern |
GB0130518D0 (en) | 2001-12-21 | 2002-02-06 | Univ Gent | Pulsed bio-agent delivery systems based on degradable polymer solutions or hydrogels |
SE0201599D0 (sv) | 2002-03-21 | 2002-05-30 | Skyepharma Ab | Microparticles |
US20040225051A1 (en) | 2002-11-15 | 2004-11-11 | Wynn Moy | Aqueous multicolor paint with improved solvent resistance |
US7189337B2 (en) * | 2003-05-12 | 2007-03-13 | Barricade International. Inc. | Methods for preventing and/or extinguishing fires |
US7129201B2 (en) | 2003-08-18 | 2006-10-31 | Unilever Home & Personal Care Usa, Division Of Conopco, Inc. | Aqueous-aqueous emulsions comprising a dispersed phase and a continuous surfactant phase with rod-like surfactants |
-
2001
- 2001-04-10 DE DE10118020A patent/DE10118020A1/de not_active Withdrawn
-
2002
- 2002-02-08 AT AT02727321T patent/ATE362388T1/de not_active IP Right Cessation
- 2002-02-08 CA CA002445039A patent/CA2445039C/en not_active Expired - Fee Related
- 2002-02-08 AU AU2002257580A patent/AU2002257580B2/en not_active Ceased
- 2002-02-08 US US10/474,522 patent/US7608208B2/en not_active Expired - Fee Related
- 2002-02-08 EP EP02727321A patent/EP1379315B1/de not_active Expired - Lifetime
- 2002-02-08 DE DE50210162T patent/DE50210162D1/de not_active Expired - Lifetime
- 2002-02-08 WO PCT/EP2002/001296 patent/WO2002083247A1/de active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5392598A (en) * | 1977-01-26 | 1978-08-14 | Hochiki Co | Method of extinguishing fire by viscous seawater |
US5616273A (en) * | 1994-08-11 | 1997-04-01 | Dynax Corporation | Synergistic surfactant compositions and fire fighting concentrates thereof |
EP0774279A1 (de) * | 1995-11-14 | 1997-05-21 | Stockhausen, Inc. | Wasser-Zusatz und Verfahren zur Verhütung und Löschen von Bränden |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section Ch Week 197838, Derwent World Patents Index; Class E19, AN 1978-67575A, XP002214018 * |
Also Published As
Publication number | Publication date |
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CA2445039A1 (en) | 2002-10-24 |
AU2002257580B2 (en) | 2007-04-26 |
DE10118020A1 (de) | 2002-10-17 |
DE50210162D1 (de) | 2007-06-28 |
EP1379315A1 (de) | 2004-01-14 |
CA2445039C (en) | 2009-10-13 |
US7608208B2 (en) | 2009-10-27 |
US20040211932A1 (en) | 2004-10-28 |
EP1379315B1 (de) | 2007-05-16 |
ATE362388T1 (de) | 2007-06-15 |
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