EP0609121B1 - Composition détergente solide contenant au moins un polymère polycarboxylique biodégradable et non hygroscopique - Google Patents
Composition détergente solide contenant au moins un polymère polycarboxylique biodégradable et non hygroscopique Download PDFInfo
- Publication number
- EP0609121B1 EP0609121B1 EP94400134A EP94400134A EP0609121B1 EP 0609121 B1 EP0609121 B1 EP 0609121B1 EP 94400134 A EP94400134 A EP 94400134A EP 94400134 A EP94400134 A EP 94400134A EP 0609121 B1 EP0609121 B1 EP 0609121B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detergent composition
- water
- composition according
- polymer
- soluble
- 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 - Lifetime
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
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3719—Polyamides or polyimides
-
- 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
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
- C11D3/223—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin oxidised
-
- 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
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3707—Polyethers, e.g. polyalkyleneoxides
-
- 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
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3715—Polyesters or polycarbonates
-
- 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
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3723—Polyamines or polyalkyleneimines
Definitions
- the subject of the present invention is a solid detergent composition containing at least one biodegradable polycarboxylic polymer in a form not water-soluble, compatible with prolonged storage.
- a common detergent composition incorporates many reagents, each of them being assigned a very specific function.
- these classic reagents we can more particularly mention the builder.
- tripolyphosphates have been the most frequently used in detergent compositions and detergents. However, they are partly responsible for the eutrophication of the lakes and waters slow flow when not sufficiently eliminated by treatment plants waters ; so we try to replace them partially or completely.
- Copolymers of acrylic acid and maleic anhydride (or their alkaline salts or ammonium) have been proposed (European Patent No. 25,551) as inhibitors inlay.
- sodium polyaspartates and polyglutamates which are useful for their total biodegradability, testify to a good builder activity (US patent 4,428 749). It has been shown that it is the negatively charged form of these compounds which is the active form in the builder function.
- water-soluble salts of these peptide polymers are found to be unsuitable for prolonged storage in solid detergent formulations. Quickly, they tend to hydrolyze and then degrade on contact with agents oxidants and bases also present in the detergent formula. After a months of storage, these compounds prove incapable of fulfilling their role as builder.
- the object of the present invention is precisely to propose a solution to this problem of stability over time.
- the object of the present invention is a particular formulation of carboxylic polymers in detergent compositions. Due to this formulation, their biodegradability and builder properties are preserved and stability chemical is theirs.
- the present invention advantageously solves the aforementioned problem.
- water-soluble function is meant a hydrolyzable function which has not not been salified with a non-water soluble inorganic salt.
- the water-soluble function covers the acid form and the form salified with a water-soluble salt.
- non-water-soluble salt is intended to denote, within the framework of the present invention, a hydrolyzable function salified with a non-water-soluble inorganic salt.
- detergent composition denotes, according to the invention, washing machine detergents, dishwashing detergents or any other cleaning product for household use.
- detergent bath or “detergent medium” means the aqueous detergent solution (detergent composition) present in the washing machine during the washing ; the quantity of detergent present is that recommended by the manufacturer; this one is generally less than 20g / liter; the pH of such a solution is greater than 9.
- Polycarboxylic polymers as claimed, no longer have hygroscopic character within a formulation detergent powder.
- a polycarboxylic polymer is considered according to the invention to have a "non-hygroscopic character" insofar as it can be stored effectively and for a long time, i.e. at least 1 month at 40 ° C at within a washing powder.
- effective storage is meant to define storage at at the end of which the degradation, usually observed, is considerably reduced and in consequently the builder activity is preserved.
- polycarboxylic polymer is intended to denote according to the invention any polymer having a structural brittleness due, for example, to the presence in the main chain of at least one hydrolyzable function.
- the polycarboxylic polymer having a non- hygroscopic according to the invention can be derived from peptide polymers, polyesters carboxylic acids, polyethers of carboxylic acids, polyamines of acids carboxylic, polycarbamates and / or oxidized sugars or polysaccharides.
- these are polymers peptide.
- peptide polymers which can be used, it is possible to cite the polymers or copolymers of amino acids of the aspartic acid type or glutamic.
- Said polypeptide polymers can have a weight-average molecular mass of the order of 2,000 to 10 7 and generally of the order of 3,500 to 60,000.
- Aspartic, glutamic polymers and aspartic acid / glutamic acid copolymers are commercial products. They can for example be prepared according to the methods described in JACS 75, 6530 (1953), JACS 80, 3361 (1958), J. Med. Chem. 16 , 893 (1973), Polymer 23 , 1237 (1982).
- polycarboxylic polymers are present in the compositions detergents in at least partial form of one of their non-water-soluble inorganic salt or a mixed salt, water-soluble salt / non-water-soluble salt.
- non-water-soluble inorganic salt is intended to denote more particularly the calcium and magnesium.
- the non-hygroscopic polycarboxylic polymer put preferably used according to the invention, is calcium polyaspartate.
- the polymer polycarboxylic may be only partially in the form of one of its non-salts water-soluble, provided of course that the expected non-hygroscopic nature, be reached.
- carboxylic functions can, where appropriate, remain present at the level of the structure of the carboxylic polymer either under their acid form or in a salified form with a water-soluble salt. In the latter case, it it is a mixed salt. Mention may in particular be made, as water-soluble salt, of sodium, potassium and ammonium. It can in particular be the Ca / Na pair.
- the Na / Ca pair is preferably used.
- This non-hygroscopy can also be obtained from an arrangement steric specific for carboxylic polymers.
- the present invention extends in particular to formulations in which the corresponding polycarboxylic polymer that is to say not hygroscopic, is in the form of granules whose external surface is consisting of at least one polycarboxylic polymer of non-character hygroscopic and the core of at least one polycarboxylic polymer, of a nature identical or different chemical, water-soluble.
- polycarboxylic polymer not water-soluble is meant a polymer of which the or the acid functions would be salified in the form of a water-insoluble inorganic salt and in a proportion such as corresponding carboxylic polymer has a character non-hygroscopic and therefore stable in detergent powders.
- This capsule of non-hygroscopic polycarboxylic polymer does not degrade within the powder detergent and preserves the core, which consists of polycarboxylic polymer under a water-soluble form, ie acid or water-soluble salt.
- the quantity of biodegradable polycarboxylic polymer with character non hygroscopic, entering the detergent composition, making the subject of the invention can vary widely depending on the activity to which it is intended within the detergent formulation. This quantity can in particular represent from 0.2 to 80% of the weight of the detergent composition. In the particular case where the polycarboxylic polymer according to the invention is used as co-builder this amount preferably varies between 2 and 15% of the weight of said detergent composition.
- the detergent composition at least a surfactant, in an amount which can range from 2 to 50%, preferably from 6 to 30%, the weight of said detergent composition.
- Various constituents may also be present in the detergent composition of the invention in order to obtain detergents or powdered cleaning products.
- the detergent composition which is the subject of the invention has good efficacy, whether in primary detergency or in secondary detergency.
- incorporation of a polycarboxylic polymer in a form as claimed that is to say which is only water-soluble in a detergent medium, guarantees the detergent composition a storage stability, clearly greater than that of a composition directly containing the biodegradable polypeptide, conventionally in a water-soluble form.
- the present invention also extends to the uses of the claimed composition for washing in a washing machine or dishwasher, or for household washing.
- control detergent a detergent of composition above but containing instead of calcium polyaspartate, sodium polyaspartate.
- the mineral inlay is calculated from the ash rate (in% compared to to the total weight of the cotton) of the fabrics washed, dried and burnt at 950 ° C for 3 hours.
- the purpose of this example is to measure the biodegradability of the polyaspartate of calcium.
- the corresponding "ultimate" biodegradability is measured according to the standard AFNOR T90 -312 (in accordance with international standard ISO 7827)
Description
- il assure au sein d'un milieu lessiviel l'enlèvement des ions indésirables, notamment alcalino-terreux (calcium, magnésium), par séquestration, complexation ou précipitation pour prévenir la précipitation des tensio-actifs anioniques,
- il apporte une réserve d'alcalinité et de force ionique,
- il maintient en suspension les salissures extraites,
- il empêche l'incrustation minérale du linge.
- partiellement ou complètement, sous la forme d'un de ses sels inorganiques non hydrosoluble soit
- sous la forme d'un sel mixte hydrosoluble / non hydrosoluble,
- les agents tensio-actifs anioniques du type savons et métaux alcalins (sels alcalins d'acides gras en C8 - C24), sulfonates alcalins (alcoylbenzène sulfonates en C8 - 13, alcoylsulfonates en C12 - C16, alcools gras en C6 - C16 sulfatés, alkylphénols en C8 -C13 sulfatés), les sulfosuccinates alcalins (alcoylsulfosuccinates en C12 - C16),
- les agents tensio-actifs non ioniques du type alcoylphénols en C6 - C12 polyoxyéthylénés, alcools aliphatiques en C8 - C22 oxyéthylénés, les copolymères bloc oxyde d'éthylène - oxyde de propylène, les amides carboxyliques éventuellement polyoxyéthylénées,
- les agents tensio-actifs amphotères du type alcoyldiméthylbétaïnes,
- les agents tensio-actifs cationiques du type chlorures ou bromures d'alkyltriméthylammonium, d'alkyldiméthylammonium.
- des "builders" du type :
- phosphates à raison de moins de 25% du poids total de la formulation,
- zéolithes jusqu'à environ 40% du poids total de la formulation,
- carbonate de sodium jusqu'à environ 80% du poids total de la formulation,
- acide nitriloacétique jusqu'à environ 10% du poids total de la formulation,
- acide citrique, acide tartrique jusqu'à environ 20% du poids total de la formulation,
- des inhibiteurs de corrosion tels que les silicates jusqu'à environ 25% du poids total de ladite composition détergente,
- des agents de blanchiment du type perborates, chloroisocyanates, N, N, N', N' - tétraacétyléthylènediamine (TAED) jusqu'à environ 30% du poids total de ladite composition détergente,
- des agents anti-redéposition du type carboxyméthylcellulose, méthylcellulose en quantités pouvant aller jusqu'à environ 5% du poids total de ladite composition détergente,
- des agents anti-incrustation du type copolymères d'acide acrylique et d'anhydride maléique en quantité pouvant aller jusqu'à 10% environ du poids total de ladite composition détergente,
- des charges du type sulfate de sodium en quantité pouvant aller jusqu'à 50% du poids total de ladite composition détergente.
La présente invention s'étend également aux utilisations de la composition revendiquée pour le lavage en lave-linge ou lave-vaisselle, ou pour le lavage ménager.
COMPOSITION DE LA LESSIVE | % EN POIDS |
Alkylbenzène sulfonate linéaire | 7,5 |
CEMUSOL LA 90 â (acide laurique polyoxyéthylénée commercialise par S.F.O.S) | 4 |
Zéolithe 4 A | 24 |
Silicate de Na (SiO2/Na2O = 2) | 1,5 |
Carbonate de Na | 10 |
TAED | 2 |
Perborate de Na | 15 |
Ethylénediamine tétracétique | 0,1 |
Polyaspartate de calcium | 3 |
Tiponal DMSXâ | 0,1 |
Tiponal SOPâ (azurants commercialisés par CIBA-CEIGY) | 0,1 |
Antimousse siliconé | 0,2 |
Alcalase | 0,15 |
Savinase (enzymes) | 0,15 |
Sulfate de Na | qsp 100% |
- textiles coton Testfabric 405 (1)
- coton Krefeld 12A (2)
TISSU | T LESSIVE TEMOIN | T LESSIVE DE L'EXEMPLE 1 | T LESSIVE SANS POLYMERE |
(1) | 100 % | 75 % | 100 % |
(2) | 100 % | 60% | 100 % |
- d'un inoculum obtenu par filtration d'eau d'entrée de la station d'épuration urbaine de Saint Germain au Mont d'Or (Rhône).
- d'un milieu d'essai contenant 4 x 107 bactéries/ml.
- d'une quantité de produit à tester telle que le milieu d'essai contienne une concentration en carbone organique de l'ordre de 40 mg/l. Le taux de biodégradabilité du produit testé en fonction du temps est de l'ordre de 60 % en 20 jours dans les conditions de rejet en eau de rivière.
Claims (13)
- Composition détergente solide contenant au moins un polymère polycarboxylique biodégradable, caractérisée en ce que ledit polymère y est présent soit :partiellement ou complètement sous la forme d'un de ses sels inorganiques non hydrosoluble, soitsous la forme d'un sel mixte hydrosoluble / non hydrosoluble,
- Composition détergente selon la revendication 1 caractérisée en ce que le polymère polycarboxylique à caractère non hygroscopique se présenter sous la forme de granulés dont la surface externe est constituée d'au moins un polymère polycarboxylique à caractère non hygroscopique et le noyau d'au moins un polymère polycarboxylique, de nature chimique identique ou différente, hydrosoluble.
- Composition détergente selon la revendication 1 ou 2 caractérisée en ce que le polymère polycarboxylique, à caractère non hygroscopique dérive de polymères peptidiques, de polyesters d'acides carboxyliques, de polyéthers d'acides carboxyliques, de polyamines d'acides carboxyliques, de polycarbamates et/ou de sucres ou polysaccharides oxydés.
- Composition détergente selon l'une des revendications 1 à 3 caractérisée en ce que le polymère carboxylique à caractère non hygroscopique dérive de préférence de polymères peptidiques.
- Composition détergente selon la revendication 4 caractérisée en ce qu'il s'agit de préférence de polymères ou copolymères d'acides aminés du type acide aspartique ou glutamique.
- Composition détergente selon l'une des revendications 1 à 5 caractérisée en ce que les sels inorganiques non hydrosolubles sont le calcium ou le magnésium.
- Composition détergente selon l'une des revendications précédentes caractérisée en ce que le sel inorganique non hydrosoluble mis en oeuvre est un sel de calcium.
- Composition détergente selon l'une des revendications de 1 à 7 caractérisée en ce que le sel mixte est un Na/Ca.
- Composition détergente selon l'une des revendications 1 à 7 caractérisée en ce que le polymère polycarboxylique à caractère non hygroscopique est le polyaspartate de calcium.
- Composition détergente selon l'une quelconque des revendications 1 à 9 caractérisée en ce que ledit polymère représente de 0,2 à 80 % du poids de ladite composition détergente.
- Composition détergente selon la revendication 10 caractérisée en ce que ledit polymère représente de préférence de 2 à 15 % du poids de ladite composition détergente.
- Composition détergente selon l'une quelconque des revendications 1 à 11 caractérisée en ce qu'au moins un agent tensio-actif est présent en quantité allant de 2 à 50 % du poids de ladite composition.
- Utilisation d'une composition détergente selon l'une des revendications de 1 à 12 pour le lavage en lave-linge ou lave-vaisselle, ou pour le lavage ménager.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9300776A FR2700775B1 (fr) | 1993-01-27 | 1993-01-27 | Composition détergente solide contenant au moins un polymère polycarboxylique biodégradable et non hygroscopique. |
FR9300776 | 1993-01-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0609121A1 EP0609121A1 (fr) | 1994-08-03 |
EP0609121B1 true EP0609121B1 (fr) | 2000-09-20 |
Family
ID=9443383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94400134A Expired - Lifetime EP0609121B1 (fr) | 1993-01-27 | 1994-01-24 | Composition détergente solide contenant au moins un polymère polycarboxylique biodégradable et non hygroscopique |
Country Status (12)
Country | Link |
---|---|
US (1) | US5520842A (fr) |
EP (1) | EP0609121B1 (fr) |
JP (1) | JP2594882B2 (fr) |
AT (1) | ATE196499T1 (fr) |
AU (1) | AU668001B2 (fr) |
BR (1) | BR9400369A (fr) |
CA (1) | CA2114382C (fr) |
DE (1) | DE69425915T2 (fr) |
ES (1) | ES2152296T3 (fr) |
FR (1) | FR2700775B1 (fr) |
NZ (1) | NZ250756A (fr) |
PT (1) | PT609121E (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5756447A (en) * | 1992-12-24 | 1998-05-26 | The Procter & Gamble Company | Dispensing agent |
US5902782A (en) * | 1995-01-20 | 1999-05-11 | Procter & Gamble Company | Detergent compositions comprising stabilised polyamino acid compounds |
DE19526089A1 (de) * | 1995-07-18 | 1997-01-23 | Bayer Ag | Waschverfahren mit Polycarbonsäuresalzen |
FR2774311B1 (fr) * | 1998-02-02 | 2000-03-17 | Rhodia Chimie Sa | Granules dispersables dans l'eau comprenant une matiere active hydrophobe |
KR100347752B1 (ko) * | 2000-01-25 | 2002-08-09 | 주식회사 하이닉스반도체 | 이동통신 시스템에서 객관적 음질 평가 장치 및 그 방법 |
DE10027624A1 (de) * | 2000-06-02 | 2001-12-06 | Zschimmer & Schwarz Mohsdorf G | Verfahren zur Nachreinigung von gefärbten oder bedruckten polyesterhaltigen textilen Produkten und Mischung zur Durchführung des Verfahrens |
DE202013001148U1 (de) * | 2013-02-06 | 2014-05-07 | Wetrok Ag | Reinigungsmittel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4428749A (en) * | 1981-01-14 | 1984-01-31 | Lever Brothers Company | Fabric washing process and detergent composition for use therein |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1064417A (en) * | 1963-12-09 | 1967-04-05 | Kyowa Hakko Kogyo Kk | Process for the preparation of copolypeptides |
GB1432137A (en) * | 1972-06-13 | 1976-04-14 | Chem Y | Detergent compositions |
US3846380A (en) * | 1972-10-31 | 1974-11-05 | M Teranishi | Polyamino acid derivatives and compositions containing same |
US4749512A (en) * | 1984-04-09 | 1988-06-07 | Colgate-Palmolive Company | Liquid laundry detergent composition |
US4622173A (en) * | 1984-12-31 | 1986-11-11 | Colgate-Palmolive Co. | Non-aqueous liquid laundry detergents containing three surfactants including a polycarboxylic acid ester of a non-ionic |
NL8502587A (nl) * | 1985-09-20 | 1987-04-16 | Chem Y | Werkwijze ter bereiding van oxyethyleengroepen en carboxymethylgroepen of zouten daarvan bevattende, capillairactieve produkten, alsmede de zo verkregen produkten en hun toepassing. |
DE3626672A1 (de) * | 1986-08-07 | 1988-02-11 | Bayer Ag | Polyasparaginamidsaeure |
IT1240684B (it) * | 1990-04-26 | 1993-12-17 | Tecnopart Srl | Poliamminoacidi quali builders per formulazioni detergenti |
US5328690A (en) * | 1991-02-21 | 1994-07-12 | University Of South Alabama | Polyamino acid dispersants |
US5284512A (en) * | 1991-03-06 | 1994-02-08 | Donlar Corporation | Polyaspartic acid and its salts for dispersing suspended solids |
US5116513A (en) * | 1991-03-19 | 1992-05-26 | Donlar Corporation | Polyaspartic acid as a calcium sulfate and a barium sulfate inhibitor |
US5152902A (en) * | 1991-03-19 | 1992-10-06 | Donlar Corporation | Polyaspartic acid as a calcium carbonate and a calcium phosphate inhibitor |
FR2675153B1 (fr) * | 1991-04-15 | 1994-07-22 | Rhone Poulenc Chimie | Composition detergente contenant un biopolymere polyimide hydrolysable en milieu lessiviel. |
EP0561452A1 (fr) * | 1992-03-20 | 1993-09-22 | Unilever N.V. | Composition détergente pour le lavage en machine de la vaisselle contenant des acides aminés polymères en tant qu'adjuvants |
US5306429A (en) * | 1992-10-29 | 1994-04-26 | Srchem, Incorporated | Copolymers of polyamino acids as scale inhibition agents |
-
1993
- 1993-01-27 FR FR9300776A patent/FR2700775B1/fr not_active Expired - Fee Related
-
1994
- 1994-01-24 PT PT94400134T patent/PT609121E/pt unknown
- 1994-01-24 DE DE69425915T patent/DE69425915T2/de not_active Expired - Fee Related
- 1994-01-24 AT AT94400134T patent/ATE196499T1/de not_active IP Right Cessation
- 1994-01-24 EP EP94400134A patent/EP0609121B1/fr not_active Expired - Lifetime
- 1994-01-24 ES ES94400134T patent/ES2152296T3/es not_active Expired - Lifetime
- 1994-01-25 AU AU53992/94A patent/AU668001B2/en not_active Ceased
- 1994-01-26 NZ NZ250756A patent/NZ250756A/en unknown
- 1994-01-27 CA CA002114382A patent/CA2114382C/fr not_active Expired - Fee Related
- 1994-01-27 US US08/187,063 patent/US5520842A/en not_active Expired - Fee Related
- 1994-01-27 JP JP6023570A patent/JP2594882B2/ja not_active Expired - Fee Related
- 1994-01-27 BR BR9400369A patent/BR9400369A/pt not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4428749A (en) * | 1981-01-14 | 1984-01-31 | Lever Brothers Company | Fabric washing process and detergent composition for use therein |
Also Published As
Publication number | Publication date |
---|---|
AU5399294A (en) | 1994-08-04 |
ATE196499T1 (de) | 2000-10-15 |
BR9400369A (pt) | 1994-08-16 |
ES2152296T3 (es) | 2001-02-01 |
EP0609121A1 (fr) | 1994-08-03 |
CA2114382A1 (fr) | 1994-07-28 |
DE69425915D1 (de) | 2000-10-26 |
FR2700775B1 (fr) | 1995-03-10 |
PT609121E (pt) | 2001-03-30 |
CA2114382C (fr) | 2001-07-03 |
JP2594882B2 (ja) | 1997-03-26 |
DE69425915T2 (de) | 2001-04-19 |
JPH0748596A (ja) | 1995-02-21 |
AU668001B2 (en) | 1996-04-18 |
NZ250756A (en) | 1996-03-26 |
FR2700775A1 (fr) | 1994-07-29 |
US5520842A (en) | 1996-05-28 |
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