EP0743975A1 - Hard surface cleaning agent - Google Patents
Hard surface cleaning agentInfo
- Publication number
- EP0743975A1 EP0743975A1 EP95908244A EP95908244A EP0743975A1 EP 0743975 A1 EP0743975 A1 EP 0743975A1 EP 95908244 A EP95908244 A EP 95908244A EP 95908244 A EP95908244 A EP 95908244A EP 0743975 A1 EP0743975 A1 EP 0743975A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- carbon atoms
- weight
- formula
- alkyl
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/825—Mixtures of compounds all of which are non-ionic
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/825—Mixtures of compounds all of which are non-ionic
- C11D1/8255—Mixtures of compounds all of which are non-ionic containing a combination of compounds differently alcoxylised or with differently alkylated chains
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2079—Monocarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2082—Polycarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
Definitions
- the invention relates to cleaning agents for hard surfaces. All non-textile surfaces occurring in the household and commercial sector, with the exception of dishes, are to be understood as such.
- the term general-purpose cleaner has become established for this type of cleaning agent. All-purpose cleaners have been known for a long time. These are essentially aqueous surfactant solutions of various types with or without the addition of builders and with or without the addition of water-soluble solvents or solubilizers. The consumer makes such general-purpose cleaners the requirement to be effective against all types of soiling occurring in the household. Conventional weakly alkaline or neutral all-purpose cleaners largely meet this requirement with regard to oily, greasy and dusty soiling. In addition, however, the consumer also expects that the calcareous impurities which occur especially in the bathroom but also in the kitchen area can be easily removed; In order to meet this need, the production of acidic all-purpose cleaners lends itself.
- the object of the present invention is to provide acidic, easy-to-assemble, cold and storage-stable cleaning agents with good cleaning power for to provide hard surfaces, so-called all-purpose cleaners, which show the above requirement profile even without the use of hydrotropes.
- the object was achieved by combining a C 6 -C 6 -alkyl glycoside with a specific fatty alcohol ether.
- the invention relates to water-containing cleaning agents with a pH of 3.0 to 6.5, preferably 3.5 to 5.5, containing
- R 1 is a branched or straight-chain, saturated or unsaturated alkyl group with 6 up to 11 carbon atoms, preferably 8 to 10 carbon atoms
- G represents a glycose residue, preferably a glucose or xylose residue
- x represents numbers from 1 to 10, preferably from 1.1 to 3.0
- R 2 is an alkyl radical having 6 to 12 carbon atoms
- m is a number from 0.5 to 3.0
- n is a number from 4.0 to 12.0.
- m stands for a number from 1.0 to 2.0 and n for a number from 6.0 to 11.0.
- Alkyl glycosides are known substances that can be obtained by the relevant methods of preparative organic chemistry. As representative of the extensive literature, reference is made here to the documents EP-A1-0 301 298 and W090 / 3977.
- the alkyl glycosides can differ from aldoses or ketoses with 5 or 6 carbon atoms, preferably from Derive glucose and xylose.
- the preferred alkyl glycosides are thus alkyl glucosides and xylosides.
- the alkyl radical R * can be derived from primary alcohols having 6 to 11, preferably 8 to 10, carbon atoms. Typical examples are cappa alcohol, caprylic alcohol, capric alcohol or undecyl alcohol and their technical mixtures, such as are obtained, for example, in the hydrogenation of technical fatty acid methyl esters or in the course of the hydrogenation of aldehydes from Roelen's oxosynthesis.
- Alkylglucosides and alkylxylosides of chain length C ⁇ -Cio are preferred, the fatty alcohol portion of which is obtained as a preliminary step in the separation of technical Cg-Ci ⁇ -coconut fatty alcohol by distillation and is preferably less than 15 less than 6% by weight of Ci2 alcohol can be contaminated.
- the fatty alcohol ethers are addition products of propylene oxide and ethylene oxide onto primary alcohols having 6 to 12 carbon atoms, that is to say e.g. B. on hexanol, octanol, decanol, dodecanol or a Cß-Cio-Vorlauf fatty alcohol.
- the numbers m and n in the formula (II) are average degrees of propoxylation or ethoxylation and can also assume fractional numerical values as quantities to be determined analytically.
- the average degree of propoxylation m is 0.5 to 3.0, preferably 1.0 to 2.0 and in particular 1.1 to 1.5;
- the average degree of ethoxylation n is 4.0 to 12.0, preferably 7.0 to 11.0 and in particular 8.0 to 10.0. This is preferably done first Propoxylation of the Cö-CiQ alcohol and then the ethoxylation, ie the ethylene glycol units are preferably at the end of the molecule.
- the cleaning agents according to the invention can optionally additionally contain further nonionic surfactants in amounts of 0.1 to 10% by weight, preferably 0.1 to 2.0% by weight, based on the total agent, for.
- the degree of ethoxylation of these compounds is generally between 1 and 20, preferably between 3 and 10. They can be prepared in a known manner by reaction with ethylene oxide.
- the ethanolamide derivatives of alkanoic acids having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms, are preferred.
- the particularly suitable compounds include lauric, myristic and palmitic monoethanolamides.
- the cleaning agents according to the invention can contain customary anionic surfactants as additional surfactant components in amounts of 0.1 to 10% by weight, preferably 01 to 2.0% by weight, based on the total agent.
- Suitable anionic surfactants are, for example, alkyl sulfates , Alkyl ether sulfates, sulfofatty acid disalts, sulfofatty acid alkyl ester salts, alkane sulfonates, isethionates, taurides, sarcosinates, ether carboxylates and / or alkylbenzenesulfonates with linear Cg to Cis alkyl groups on the benzene nucleus.
- the sulfate-type surfactants that can be used include, in particular, primary alkyl sulfates with preferably linear alkyl radicals having 10 to 20 carbon atoms, which have an ammonium ion substituted with alkali, ammonium or alkyl or hydroxyalkyl as the counter cation;
- the derivatives of the linear alcohols with in particular 8 to 18 carbon atoms and their branched-chain analogs, the so-called oxo alcohols, are particularly suitable.
- the sulfation products of primary fatty alcohols with linear ones can be used in particular Octyl, decyl, dodecyl, tetradecyl, hexadecyl or octadecyl radicals and mixtures thereof.
- the alkyl sulfates can be prepared in a known manner by reacting the corresponding alcohol component with a customary sulfating reagent, in particular sulfur trioxide or chlorosulfonic acid, and then neutralizing with alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium bases.
- ether sulfates can be used as the anionic surfactant component.
- Such ether sulfates preferably contain 2 to 30, in particular 4 to 20, ethylene glycol groups per molecule.
- Suitable anionic surfactants of the sulfonate type also include the sulfoesters obtainable by reacting fatty acid esters with sulfur trioxide and subsequent neutralization, in particular those derived from fatty acids having 8 to 22 carbon atoms, preferably 12 to 18 carbon atoms, and linear alcohols fetch with 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, derivative sulfonation products, as well as the sulfofatty acid disalts derivable from these.
- the alkane sulfonates which can be used are substances which are obtained by sulfoxidation of hydrocarbons which preferably contain 10 to 20 carbon atoms.
- the cleaning agents according to the invention also achieve the stated object without the optionally present anionic surfactants, the use of which can therefore be dispensed with if necessary.
- a mixture of any organic or inorganic acid with its can in principle respective salt are used, e.g. B. phosphoric acid, phosphorous acid, hydrochloric acid, sulfuric acid, formic acid; however, a mono-, Di- or tricarboxylic acid with 2 to 6 carbon atoms used. Lactic acid, tartaric acid, malic acid, glycolic acid, glyoxylic acid, succinic acid, adipic acid, glutaric acid, but especially citric acid are preferred.
- the mixture of acid and salt is present in amounts of 0.1 to 15% by weight, preferably 1.0 to 5.0% by weight, based on the total agent, depending on which one pH value in the range according to the invention is now ultimately desired.
- salts are e.g. B. Ammonium and C2-C mono- and dialkanolammonium salts to name, but the alkali metal salts are preferred.
- a mixture of acid and corresponding alkali metal salt is obtained in the simplest case by introducing the acid and with an alkali metal hydroxide, e.g. B. NaOH, partially neutralized.
- the pH value at an application concentration of 10 g detergent per 1 1 solution is normally 4.0 to 6.0.
- the cleaning agents according to the invention are generally aqueous preparations, but water-miscible organic solvents can also be used, e.g. B. methanol, ethanol, propanol, isopropanol and their mixtures.
- viscosity regulators e.g. B. synthetic polymers such as e.g. Homo- and copolymers of acrylic acid, polyethylene glycol, biosynthetic polymers such as Xanthan gum; Preservatives, e.g. Glutaraldehyde; Dyes, opacifiers and perfume oils.
- the agents according to the invention can be prepared by simply mixing the individual components, which may be present as such or, if appropriate, in aqueous solution.
- the surfactant combination according to the invention of alkyl glycosides of the formula I and fatty alcohol ethers of the formula II significantly improves the incorporation of perfume oils. works; ie the perfume oils are easier to incorporate and also lead to better storage-stable formulations than is the case with conventional cleaning agents.
- hydrotropes used in conventional cleaning agents e.g. short chain (C2-C6) alcohols, e.g. B. butylene glycol; Cumene sulfonate and butyl glucoside can optionally be added to the cleaning agents according to the invention; however, the cleaning agents according to the invention also achieve the stated tasks without hydrotropes.
- C2-C6 alcohols e.g. B. butylene glycol
- Cumene sulfonate and butyl glucoside can optionally be added to the cleaning agents according to the invention; however, the cleaning agents according to the invention also achieve the stated tasks without hydrotropes.
- the agents according to the invention are particularly suitable for cleaning hard surfaces such as enamel, glass, PVC, linoleum or ceramic tiles, in particular in the bathroom or kitchen area, where calcareous contaminants can be found.
- Acid sensitive materials such as B. marble, but should not be cleaned with the agents according to the invention.
- compositions E1 and E2 according to the invention and the comparative compositions VI to V4 not according to the invention were prepared. ( Figures in% by weight)
- the examples according to the invention produce clear products both with and without hydrotrope, which remain clear even after storage at 40 ° C. and subsequent cooling to normal ambient temperature (20-25 ° C.).
- Comparative Examples VI and V2 are cloudy products after they have been produced. Comparative examples V3 and V4 are clear immediately after production, but become cloudy after storage.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4404199A DE4404199A1 (en) | 1994-02-10 | 1994-02-10 | Detergent for hard surfaces |
DE4404199 | 1994-02-10 | ||
PCT/EP1995/000357 WO1995021905A1 (en) | 1994-02-10 | 1995-02-01 | Hard surface cleaning agent |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0743975A1 true EP0743975A1 (en) | 1996-11-27 |
EP0743975B1 EP0743975B1 (en) | 1998-06-17 |
Family
ID=6509931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95908244A Expired - Lifetime EP0743975B1 (en) | 1994-02-10 | 1995-02-01 | Hard surface cleaning agent |
Country Status (9)
Country | Link |
---|---|
US (1) | US5780416A (en) |
EP (1) | EP0743975B1 (en) |
AT (1) | ATE167514T1 (en) |
CA (1) | CA2183179A1 (en) |
DE (2) | DE4404199A1 (en) |
DK (1) | DK0743975T3 (en) |
ES (1) | ES2118564T3 (en) |
PL (1) | PL176662B1 (en) |
WO (1) | WO1995021905A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2733246B1 (en) * | 1995-04-21 | 1997-05-23 | Seppic Sa | ANTI-FOAM COMPOSITION COMPRISING A NON-IONIC SURFACTANT AND AN ALKYLPOLYGLYCOSIDE |
AU709865B2 (en) * | 1995-07-17 | 1999-09-09 | Henkel Corporation | The use of alkoxylated alcohols to control foaming of alkyl polyglycosides in cleaning compositions |
US6294318B1 (en) * | 1998-09-09 | 2001-09-25 | Fuji Photo Film Co., Ltd. | Plate surface protective agent for lithographic printing plate, and fountain solution composition for lithographic printing plate |
EP1287100B1 (en) | 2000-06-05 | 2006-11-29 | S. C. Johnson & Son, Inc. | Biocidal cleaner composition |
US7511006B2 (en) * | 2000-12-14 | 2009-03-31 | The Clorox Company | Low residue cleaning solution comprising a C8 to C10 alkylpolyglucoside and glycerol |
US6573375B2 (en) | 2000-12-20 | 2003-06-03 | Union Carbide Chemicals & Plastics Technology Corporation | Liquid thickener for surfactant systems |
DE10229421A1 (en) | 2002-06-29 | 2004-01-29 | Ecolab Gmbh & Co. Ohg | Floor cleaning and / or care products |
DE10337805A1 (en) * | 2003-08-14 | 2005-03-10 | Henkel Kgaa | Acidic cleaning composition, useful for sensitive hard surfaces, particularly marble, includes divalent cations that form a carbonate having a lower solubility product than calcium carbonate |
US7148187B1 (en) | 2005-06-28 | 2006-12-12 | The Clorox Company | Low residue cleaning composition comprising lactic acid, nonionic surfactant and solvent mixture |
US20060293214A1 (en) * | 2005-06-28 | 2006-12-28 | Lily Cheng | Synergistic acidic ternary biocidal compositions |
CA2660739C (en) * | 2006-08-21 | 2013-04-30 | Ecolab Inc. | Acidic composition based on a surfactant blend |
US7741265B2 (en) * | 2007-08-14 | 2010-06-22 | S.C. Johnson & Son, Inc. | Hard surface cleaner with extended residual cleaning benefit |
MX2010001591A (en) * | 2007-08-14 | 2010-05-24 | Shaklee Corp | Cleaning composition. |
US7470331B1 (en) | 2007-11-01 | 2008-12-30 | The Clorox Company | Acidic cleaning composition |
US7414016B1 (en) | 2007-11-01 | 2008-08-19 | The Clorox Company | Acidic cleaning compositions |
US20090312228A1 (en) * | 2008-06-11 | 2009-12-17 | Katie Bocage | Aqueous cleaning concentrates |
US8283304B2 (en) * | 2009-10-14 | 2012-10-09 | S.C. Johnson & Son, Inc. | Green compositions containing synergistic blends of surfactants and linkers |
FR2959140A1 (en) * | 2010-04-23 | 2011-10-28 | Agro Ind Rech S Et Dev Ard | FACILITATED PREPARATIONS OF VESICLES USING ALKYL POLY-PENTOSIDES AND USES THEREOF |
FR2981085B1 (en) * | 2011-10-11 | 2015-06-26 | Gm Agri | PAINT, IN PARTICULAR FOR TEMPORARY ROAD MARKING, BASED ON BIODEGRADABLE POLYMERS |
US10421926B2 (en) | 2017-01-20 | 2019-09-24 | Ecolab Usa Inc. | Cleaning and rinse aid compositions and emulsions or microemulsions employing optimized extended chain nonionic surfactants |
US11873465B2 (en) | 2019-08-14 | 2024-01-16 | Ecolab Usa Inc. | Methods of cleaning and soil release of highly oil absorbing substrates employing optimized extended chain nonionic surfactants |
EP4299697A1 (en) * | 2022-06-27 | 2024-01-03 | The Procter & Gamble Company | Acidic hard surface cleaning composition |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199765B1 (en) * | 1984-11-06 | 1990-05-23 | Henkel Kommanditgesellschaft auf Aktien | Monoglycosides as viscosity modifiers in detergents |
US4705665A (en) * | 1985-04-26 | 1987-11-10 | A. E. Staley Manufacturing Company | Method for inhibiting oxidation of ferrous metals with alkyl glycosides and composition for cleaning ferrous metals |
DE3518672A1 (en) * | 1985-05-24 | 1986-11-27 | Basf Ag, 6700 Ludwigshafen | LIQUID CLEANING CONCENTRATE FOR STRONG ALKALINE CLEANING FORMULAS |
ZA876157B (en) * | 1986-08-28 | 1989-04-26 | Colgate Palmolive Co | Nonaqueous liquid nonionic laundry detergent composition and method of use |
DE3643895A1 (en) * | 1986-12-22 | 1988-06-30 | Henkel Kgaa | LIQUID NON-ionic surfactant blends |
WO1988009369A1 (en) * | 1987-05-18 | 1988-12-01 | Staley Continental, Inc. | Low foaming detergent composition |
DE3723826A1 (en) * | 1987-07-18 | 1989-01-26 | Henkel Kgaa | METHOD FOR PRODUCING ALKYL GLYCOSIDES |
DE3833780A1 (en) * | 1988-10-05 | 1990-04-12 | Henkel Kgaa | METHOD FOR THE DIRECT PRODUCTION OF ALKYL GLYCOSIDES |
DE4009533A1 (en) * | 1990-03-24 | 1991-09-26 | Henkel Kgaa | LOW-EFFICIENT NON-ionic surfactant mix |
JPH0756037B2 (en) * | 1990-04-02 | 1995-06-14 | 花王株式会社 | Cleaning composition |
DE4210365C2 (en) * | 1992-03-30 | 1995-06-08 | Henkel Kgaa | Use of cleaning agents for hard surfaces |
DE4216380A1 (en) * | 1992-05-18 | 1993-11-25 | Henkel Kgaa | Procedure for cleaning bathroom fittings |
DE4233699A1 (en) * | 1992-10-07 | 1994-04-14 | Henkel Kgaa | Rinse aid for automatic dishwashing |
DE4233698A1 (en) * | 1992-10-07 | 1994-04-14 | Henkel Kgaa | Liquid cleaning and care agent for household dishwashers |
US5759979A (en) * | 1993-04-05 | 1998-06-02 | Henkel Kommanditgesellschaft Auf Aktien | Detergent mixtures comprising APG and fatty alcohol polyglycol ether |
US5576284A (en) * | 1994-09-26 | 1996-11-19 | Henkel Kommanditgesellschaft Auf Aktien | Disinfecting cleanser for hard surfaces |
-
1994
- 1994-02-10 DE DE4404199A patent/DE4404199A1/en not_active Withdrawn
-
1995
- 1995-02-01 WO PCT/EP1995/000357 patent/WO1995021905A1/en active IP Right Grant
- 1995-02-01 DK DK95908244T patent/DK0743975T3/en active
- 1995-02-01 DE DE59502598T patent/DE59502598D1/en not_active Expired - Lifetime
- 1995-02-01 EP EP95908244A patent/EP0743975B1/en not_active Expired - Lifetime
- 1995-02-01 US US08/687,553 patent/US5780416A/en not_active Expired - Fee Related
- 1995-02-01 PL PL95315785A patent/PL176662B1/en unknown
- 1995-02-01 CA CA002183179A patent/CA2183179A1/en not_active Abandoned
- 1995-02-01 ES ES95908244T patent/ES2118564T3/en not_active Expired - Lifetime
- 1995-02-01 AT AT95908244T patent/ATE167514T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9521905A1 * |
Also Published As
Publication number | Publication date |
---|---|
PL176662B1 (en) | 1999-07-30 |
EP0743975B1 (en) | 1998-06-17 |
DE4404199A1 (en) | 1995-08-17 |
WO1995021905A1 (en) | 1995-08-17 |
US5780416A (en) | 1998-07-14 |
CA2183179A1 (en) | 1995-08-17 |
DE59502598D1 (en) | 1998-07-23 |
PL315785A1 (en) | 1996-12-09 |
ES2118564T3 (en) | 1998-09-16 |
ATE167514T1 (en) | 1998-07-15 |
DK0743975T3 (en) | 1999-04-06 |
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