EP0094250A1 - Procédé pour la préparation de granules contenant un agent antimousse à base de silicone - Google Patents

Procédé pour la préparation de granules contenant un agent antimousse à base de silicone Download PDF

Info

Publication number
EP0094250A1
EP0094250A1 EP83302643A EP83302643A EP0094250A1 EP 0094250 A1 EP0094250 A1 EP 0094250A1 EP 83302643 A EP83302643 A EP 83302643A EP 83302643 A EP83302643 A EP 83302643A EP 0094250 A1 EP0094250 A1 EP 0094250A1
Authority
EP
European Patent Office
Prior art keywords
silicone
process according
absorbent
foam
granules
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
Application number
EP83302643A
Other languages
German (de)
English (en)
Other versions
EP0094250B1 (fr
EP0094250B2 (fr
Inventor
Ho Tan Tai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10530279&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0094250(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to AT83302643T priority Critical patent/ATE21115T1/de
Publication of EP0094250A1 publication Critical patent/EP0094250A1/fr
Publication of EP0094250B1 publication Critical patent/EP0094250B1/fr
Application granted granted Critical
Publication of EP0094250B2 publication Critical patent/EP0094250B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0026—Low foaming or foam regulating compositions
    • 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
    • C11D1/38—Cationic compounds
    • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
    • C11D1/528—Carboxylic amides (R1-CO-NR2R3), where at least one of the chains R1, R2 or R3 is interrupted by a functional group, e.g. a -NH-, -NR-, -CO-, or -CON- group
    • 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
    • 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
    • C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones

Definitions

  • This invention relates to granules containing a silicone-based anti-foam and to a process for manufacturing them, as well as to a detergent powder containing the granules.
  • Granules containing a silicone-based anti-foam are known. Certain granules of this type are described in British patent No 1492,939 and others in French patent No 2,462,184. Our unpublished British patent application No 8123492 also relates to granules containing a silicone-based anti-foam.
  • the process which is described in the specification of that application involves granulating gelatinised starch whilst spraying on a mixture of a silicone oil and a hydrophobic silica. A solution of paraffin wax in chloroform is then sprayed onto the granules and the solvent is evaporated.
  • the present invention provides a process for the manufacture of granules containing a silicone-based anti-foam which comprises the steps of:
  • the silicone comprises a mixture of a liquid or liquifiable polysiloxane with particles of a hydrophobic material
  • the hydrophobic material is preferably a hydrophobed silica, a water-insoluble salt of an alkyl phosphoric acid, or a compound of one of the following general formulae: or where R and R 3 represent aliphatic hydrocarbon residues containing 14-22 carbon atoms, R 2 and. R 4 represent hydrogen atoms or aliphatic hydrocarbon residues containing 1-22 carbon atoms, and R represents an aliphatic residue containing 1-9 carbon atoms.
  • alkylene-bis-amides and in particular ethylene and methylene-bis-stearimide are the preferred compounds, that is to say compounds of the general formula: where x is an integer from 5 to 25 and n is 1 or 2 and in particular compounds of the formula.
  • Preferred waxes are of mineral origin, especially those derived from petroleum, including microcrystalline and oxidised microcrystalline petroleum waxes and paraffin waxes.
  • synthetic waxes, or natural waxes such as Montan waxes, beeswax, candelilla or carnauba waxes may also be used as may a mixture of any of these waxes.
  • Whatever wax is used it is preferred that its melting point is between 35° and 70 0 C so that it is readily liquifiable.
  • the absorbent for use in the process of the present invention is preferably gelatinised starch, but other absorbents can also be used.
  • Preferred are those materials which are conventionally employed as components of detergent powders, for example sodium tripolyphosphate, sodium sulphate, sodium carboxymethyl cellulose and sodium aluminosilicate.
  • the apparatus in which the liquifiable mixture of silicone and wax is sprayed onto the absorbent can be any of the apparatus conventionally used for granulation or agglomeration. Examples are the Eirich (registered Trade Mark) pan, the Schugi (registered Trade Mark) mixer, or any one of the numerous fluidised bed apparatus which are available, such as the Anhydro (registered Trade Mark) fluidised bed.
  • a typical composition of the granules formed in the process of the invention is: However, considerable variations can be made based on this composition, so that the absorbent can be present in amounts of from 20-80%, the silicone compound in amounts of from 5-40%, the paraffin wax in amounts of from 5-30% and the nonionic surfactant in amounts up to 10%, the percentages being expressed by weight.
  • the granules may be incorporated into spray-dried (powdered) detergent compositions or into liquid ones.
  • powdered detergent compositions they will be dosed into the powder after spray-drying, along with other materials which are conventionally post-dosed such as sodium perborate and fillers.
  • liquids which are structured sometimes called false-body liquids
  • the granules can be added to the liquid in the final step of the manufacturing process.
  • structured liquids There are two basic types of structured liquids, one in which the structure is imparted by interaction between surfactants and electrolytes, and the other in which it is imparted by means of a colloid such as a clay. Both types are capable of suspending the granules of the invention.
  • composition in powdered or in liquid form it will normally contain both an anionic and a nonionic surfactant but may also contain either alone or a soap as the major detergent-active species.
  • the powdered compositions will contain a detergency builder and the liquid ones will normally do so, but need not necessarily.
  • Other components which will normally be present are corrosion inhibitors, anti-redeposition agents, fluorescers, stabilisers and substantial proportions of water.
  • Typical anionic surfactants which may be present in amounts of from about 2 to 35% by weight of the finished compositions are sodium alkylbenzene sulphonates, preferably the C 10 -C 14 alkyl compounds, sodium primary and secondary alkyl sulphates, preferably the C 10 -C 22 alkyl sulphates, sodium olefine sulphonates, preferably the C 10 -C 18 sulphonates and sodium alkane sulphonates. Soaps of fatty acids may also be present, preferably the sodium and potassium salts of C 10 -C 22 fatty acids, both saturated and unsaturated.
  • soap is the sole anionic surfactant it may be present in an amount up to about 65% by weight of the finished composition, down to about 2$ by weight when other anionic surfactants are present.
  • Typical soaps which can be used are those formed from coconut oil, tallow and natural oils containing high proportions of oleic acid such as sunflower oil.
  • Typical nonionic surfactants are ethoxylated primary and secondary alcohols of from 8 to 25 carbon atoms containing from 3 to 25 moles of ethylene oxide per mole of alcohol. These materials may generally be present in an amount of from 1 to 15% by weight, based on the weight of the finished composition.
  • Typical detergency builders which can be used are the water-soluble phosphates, carbonates, percarbonates and aluminosilicates, particularly the sodium and potassium salts of these compounds.
  • Organic builders may also be used, examples being sodium carboxymethyloxysuccinate, sodium citrate, sodium polyacrylates and sodium nitrilotriacetate. Any of these compounds, or any other builder compound, in any suitable mixture, may be used in amounts of from 5 to 50% by weight of the finished composition.
  • gelatinised starch (Amigel 30076 registered Trade Mark, manufactured and sold by Societe des Produits du Mais, of Clarmart, France) was placed in the pan of an Eirich (registered Trade Mark) pan granulator.
  • the resultant liquid was then sprayed onto the gelatinised starch in the pan granulator then, 4.8 parts of nonionic surfactant (C 13-18 primary alcohol 8EO) where sprayed onto the granules.
  • the following detergent composition was prepared by conventional spray-drying and dry-dosing techniques, the granules of example 1 being added in the dry-dosing step.
  • the powder obtained was divided into two batches. The first batch was immediately subjected to the foam assessment test described below. The other batch was stored in unlaminated, sealed cartons at 37°C and 60% relative humidity. The stored batches were then subjected to test after 2 weeks and 4 weeks of storage.
  • the suds assessment test is performed by washing a standard load of clean washing in a Brandt 433 (registered Trade Mark) washing machine.
  • the washing machine was specially modified to provide a window and the window had an arbitrary scale on it from which suds height could be read.
  • the reservoir holding the wash liquor is fitted with a thermometer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Molecular Biology (AREA)
  • Detergent Compositions (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP83302643A 1982-05-11 1983-05-10 Procédé pour la préparation de granules contenant un agent antimousse à base de silicone Expired - Lifetime EP0094250B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83302643T ATE21115T1 (de) 1982-05-11 1983-05-10 Granulate enthaltend antischaummittel auf silikonbasis und verfahren zu ihrer herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8213576 1982-05-11
GB8213576 1982-05-11

Publications (3)

Publication Number Publication Date
EP0094250A1 true EP0094250A1 (fr) 1983-11-16
EP0094250B1 EP0094250B1 (fr) 1986-07-30
EP0094250B2 EP0094250B2 (fr) 1994-06-15

Family

ID=10530279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83302643A Expired - Lifetime EP0094250B2 (fr) 1982-05-11 1983-05-10 Procédé pour la préparation de granules contenant un agent antimousse à base de silicone

Country Status (4)

Country Link
EP (1) EP0094250B2 (fr)
AT (1) ATE21115T1 (fr)
DE (1) DE3364903D1 (fr)
ZA (1) ZA833292B (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211589A2 (fr) * 1985-07-30 1987-02-25 The Procter & Gamble Company Compositions détergentes
EP0274142A2 (fr) * 1986-11-13 1988-07-13 The Procter & Gamble Company Composition détergente contenant un agent adoucissant type polyamide
US4818292A (en) * 1985-09-04 1989-04-04 Lever Brothers Company Antifoam ingredient for detergent compositions
US5002695A (en) * 1987-09-30 1991-03-26 Henkel Kommanditgesellschaft Auf Aktien Foam regulators suitable for use in detergents and cleaning preparations
TR27965A (tr) * 1993-07-12 1995-11-07 Procter & Gamble Camasirlarin temizlenmesinde kullanilmak üzere uygun granüler deterjan bilesimleri.
EP0684303A2 (fr) 1994-05-27 1995-11-29 Unilever Plc Compositions détergents
WO1998009701A1 (fr) * 1996-09-06 1998-03-12 Henkel Kommanditgesellschaft Auf Aktien Procede pour la fabrication de regulateurs de mousse contenant de la paraffine
WO2000011127A1 (fr) * 1998-08-17 2000-03-02 Cognis Deutschland Gmbh Production de granules d'agent antimoussant selon la technique du lit fluidise
US6200498B1 (en) 1997-08-29 2001-03-13 Henkel Kommanditgesellschaft Auf Aktien Process for producing paraffin-containing foam regulators
WO2001034746A1 (fr) * 1999-11-09 2001-05-17 Cognis Deutschland Gmbh & Co. Kg Granules d'antimousse
WO2001034747A1 (fr) * 1999-11-09 2001-05-17 Cognis Deutschland Gmbh & Co. Kg Produits solides de lavage, de rinçage et de nettoyage
WO2001034757A1 (fr) * 1999-11-09 2001-05-17 Cognis Deutschland Gmbh & Co. Kg Corps façonnes presentant une solubilite dans l'eau amelioree
EP1234870A2 (fr) * 2001-02-22 2002-08-28 Cognis Deutschland GmbH & Co. KG Additifs solides pour les détergents, leur préparation et utilisation
US6656975B1 (en) 2002-05-21 2003-12-02 Dow Corning Corporation Silicone dispersions
WO2004069981A2 (fr) * 2003-02-03 2004-08-19 Ciba Specialty Chemicals Holding Inc. Agent de lavage et formulations d'adoucisseur de tissu
US8754155B2 (en) 2005-09-06 2014-06-17 Dow Corning Corporation Delivery system for releasing silicone ingredients
US9040474B2 (en) 2010-12-10 2015-05-26 Dow Corning Corporation Granulated foam control composition comprising a polyol ester and cationic polymer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2194771A1 (fr) * 1972-08-01 1974-03-01 Procter & Gamble
DE2509508A1 (de) * 1974-03-11 1975-09-18 Procter & Gamble Waschmittel mit kontrolliertem schaum
EP0008829A1 (fr) * 1978-09-09 1980-03-19 THE PROCTER & GAMBLE COMPANY Compositions détergentes à moussage réglé
FR2462184A1 (fr) * 1979-07-31 1981-02-13 Eurand France Nouvelles compositions antimousses sous forme de granules utilisables notamment dans les lessives en poudre
EP0054436A1 (fr) * 1980-12-17 1982-06-23 Unilever Plc Composition détergente à mousse contrôlée
EP0071481A1 (fr) * 1981-07-31 1983-02-09 Unilever Plc Agents de réglage de la mousse et compositions détergentes les contenant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2194771A1 (fr) * 1972-08-01 1974-03-01 Procter & Gamble
DE2509508A1 (de) * 1974-03-11 1975-09-18 Procter & Gamble Waschmittel mit kontrolliertem schaum
EP0008829A1 (fr) * 1978-09-09 1980-03-19 THE PROCTER & GAMBLE COMPANY Compositions détergentes à moussage réglé
FR2462184A1 (fr) * 1979-07-31 1981-02-13 Eurand France Nouvelles compositions antimousses sous forme de granules utilisables notamment dans les lessives en poudre
EP0054436A1 (fr) * 1980-12-17 1982-06-23 Unilever Plc Composition détergente à mousse contrôlée
EP0071481A1 (fr) * 1981-07-31 1983-02-09 Unilever Plc Agents de réglage de la mousse et compositions détergentes les contenant

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211589A2 (fr) * 1985-07-30 1987-02-25 The Procter & Gamble Company Compositions détergentes
EP0211589A3 (en) * 1985-07-30 1988-01-13 The Procter & Gamble Company Detergent compositions
US4818292A (en) * 1985-09-04 1989-04-04 Lever Brothers Company Antifoam ingredient for detergent compositions
EP0274142A2 (fr) * 1986-11-13 1988-07-13 The Procter & Gamble Company Composition détergente contenant un agent adoucissant type polyamide
EP0274142A3 (en) * 1986-11-13 1989-06-28 The Procter & Gamble Company Detergent composition containing a polyamide softening agent
US5002695A (en) * 1987-09-30 1991-03-26 Henkel Kommanditgesellschaft Auf Aktien Foam regulators suitable for use in detergents and cleaning preparations
TR27965A (tr) * 1993-07-12 1995-11-07 Procter & Gamble Camasirlarin temizlenmesinde kullanilmak üzere uygun granüler deterjan bilesimleri.
EP0705324A4 (fr) * 1993-07-12 1996-02-13 Procter & Gamble Composition detergente en granules comprenant un agent tensioactif et un composant antimousse
EP0705324A1 (fr) * 1993-07-12 1996-04-10 The Procter & Gamble Company Composition detergente en granules comprenant un agent tensioactif et un composant antimousse
EP0684303A2 (fr) 1994-05-27 1995-11-29 Unilever Plc Compositions détergents
EP0684303A3 (fr) * 1994-05-27 1996-07-10 Unilever Plc Compositions détergents.
WO1998009701A1 (fr) * 1996-09-06 1998-03-12 Henkel Kommanditgesellschaft Auf Aktien Procede pour la fabrication de regulateurs de mousse contenant de la paraffine
US6200498B1 (en) 1997-08-29 2001-03-13 Henkel Kommanditgesellschaft Auf Aktien Process for producing paraffin-containing foam regulators
WO2000011127A1 (fr) * 1998-08-17 2000-03-02 Cognis Deutschland Gmbh Production de granules d'agent antimoussant selon la technique du lit fluidise
WO2001034746A1 (fr) * 1999-11-09 2001-05-17 Cognis Deutschland Gmbh & Co. Kg Granules d'antimousse
WO2001034747A1 (fr) * 1999-11-09 2001-05-17 Cognis Deutschland Gmbh & Co. Kg Produits solides de lavage, de rinçage et de nettoyage
WO2001034757A1 (fr) * 1999-11-09 2001-05-17 Cognis Deutschland Gmbh & Co. Kg Corps façonnes presentant une solubilite dans l'eau amelioree
EP1234870A2 (fr) * 2001-02-22 2002-08-28 Cognis Deutschland GmbH & Co. KG Additifs solides pour les détergents, leur préparation et utilisation
EP1234870A3 (fr) * 2001-02-22 2002-11-13 Cognis Deutschland GmbH & Co. KG Additifs solides pour les détergents, leur préparation et utilisation
US6656975B1 (en) 2002-05-21 2003-12-02 Dow Corning Corporation Silicone dispersions
WO2004069981A2 (fr) * 2003-02-03 2004-08-19 Ciba Specialty Chemicals Holding Inc. Agent de lavage et formulations d'adoucisseur de tissu
WO2004069981A3 (fr) * 2003-02-03 2004-10-28 Ciba Sc Holding Ag Agent de lavage et formulations d'adoucisseur de tissu
US8754155B2 (en) 2005-09-06 2014-06-17 Dow Corning Corporation Delivery system for releasing silicone ingredients
US9040474B2 (en) 2010-12-10 2015-05-26 Dow Corning Corporation Granulated foam control composition comprising a polyol ester and cationic polymer

Also Published As

Publication number Publication date
ZA833292B (en) 1984-12-24
EP0094250B1 (fr) 1986-07-30
EP0094250B2 (fr) 1994-06-15
DE3364903D1 (en) 1986-09-04
ATE21115T1 (de) 1986-08-15

Similar Documents

Publication Publication Date Title
EP0094250B1 (fr) Procédé pour la préparation de granules contenant un agent antimousse à base de silicone
EP0266863B1 (fr) Agent antimousseux
US4451387A (en) Suds control agents and detergent compositions containing them
EP0040091B1 (fr) Granulés supprimant la mousse à utiliser dans des compositions détergentes
CZ225796A3 (en) Washing and cleansing preparation with imminodisuccinates
EP0495345B1 (fr) Agents anti-mousse sous forme de granulés
EP0008830A1 (fr) Compositions supprimant la mousse et détergents les contenant
EP0256833B1 (fr) Agent antimousse
JPS61271007A (ja) 消泡成分
US4113644A (en) Protected glassy phosphate detergent additive
EP0071481B1 (fr) Agents de réglage de la mousse et compositions détergentes les contenant
EP0119746B1 (fr) Procédé pour la manufacture de poudre détergente
EP0109247B1 (fr) Granules d'hydrocarbure anti-mousse
EP0139539B1 (fr) Procédé pour la manufacture de poudre détergente
CA1180970A (fr) Methode de fabrication d'une poudre de lessive a moussage controle
JPH03210398A (ja) 粘土を含有する高嵩密度の洗剤粉末の製造方法
CA2206326A1 (fr) Compositions detergentes comprenant un agent tensioactif cationique et processus de fabrication
CA1184468A (fr) Methode de preparation de detergents a faible teneur de silicates
EP0087233B1 (fr) Procédé pour la production des compositions détergentes faiblement moussantes
EP0054436A1 (fr) Composition détergente à mousse contrôlée
PL174970B1 (pl) Sposób wytwarzania sypkiej proszkowej kompozycji do zmiękczania tkanin
EP0342985B1 (fr) Additif anti-mousse
EP0137533B1 (fr) Adjuvant à bon écoulement ayant des propriétés adoucissantes de tissus pour utilisation dans des compositions détergentes pour le linge et méthode pour le faire
JPH0249099A (ja) 濃縮高比重衣料用粉末洗剤

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19840411

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19860730

Ref country code: AT

Effective date: 19860730

REF Corresponds to:

Ref document number: 21115

Country of ref document: AT

Date of ref document: 19860815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3364903

Country of ref document: DE

Date of ref document: 19860904

ET Fr: translation filed
ITF It: translation for a ep patent filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN

Effective date: 19870330

NLR1 Nl: opposition has been filed with the epo

Opponent name: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: UNILEVER N.V.

Owner name: UNILEVER PLC

ITTA It: last paid annual fee
PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19940615

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

ITF It: translation for a ep patent filed
NLR2 Nl: decision of opposition
ET3 Fr: translation filed ** decision concerning opposition
NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
EAL Se: european patent in force in sweden

Ref document number: 83302643.8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19960430

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970425

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19970526

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980409

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980416

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980429

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980510

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980510

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19981201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990511

EUG Se: european patent has lapsed

Ref document number: 83302643.8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO