EP0148087A2 - Zusatz für alkalische Reinigungsbäder, vollständiges, diesen Zusatz enthaltendes Produkt und dessen Verwendung - Google Patents

Zusatz für alkalische Reinigungsbäder, vollständiges, diesen Zusatz enthaltendes Produkt und dessen Verwendung Download PDF

Info

Publication number
EP0148087A2
EP0148087A2 EP84402706A EP84402706A EP0148087A2 EP 0148087 A2 EP0148087 A2 EP 0148087A2 EP 84402706 A EP84402706 A EP 84402706A EP 84402706 A EP84402706 A EP 84402706A EP 0148087 A2 EP0148087 A2 EP 0148087A2
Authority
EP
European Patent Office
Prior art keywords
additive
alkaline
soda
alkaline cleaning
cleaning baths
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
EP84402706A
Other languages
English (en)
French (fr)
Other versions
EP0148087A3 (en
EP0148087B1 (de
Inventor
Joseph Schapira
Jacques Vincent
Jacques Schild
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.)
Compagnie Francaise de Produits Industriels SA
Original Assignee
Compagnie Francaise de Produits Industriels SA
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=9295522&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0148087(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Compagnie Francaise de Produits Industriels SA filed Critical Compagnie Francaise de Produits Industriels SA
Publication of EP0148087A2 publication Critical patent/EP0148087A2/de
Publication of EP0148087A3 publication Critical patent/EP0148087A3/fr
Application granted granted Critical
Publication of EP0148087B1 publication Critical patent/EP0148087B1/de
Expired 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/06—Hydroxides
    • 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
    • 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
    • C11D3/221—Mono, di- or trisaccharides or derivatives thereof

Definitions

  • the invention relates to an additive at least to a large extent biodegradable for alkaline cleaning baths.
  • the invention relates to a synthetic additive with very little or no foaming, in most cases provided with anti-foaming power and, at least to a large extent, biodegradable, for alkaline cleaning baths, in particular for cleaning glass bottles.
  • the glass bottles are cleaned in a washing machine with soda solutions titrating from 0.5 to 3% and at temperatures from 45 to 95 ° C.
  • the machines have several baths set at different temperatures to avoid thermal shock.
  • the additive has a chemical stability on storage in the presence of caustic soda. flakes or pearls in the case where a complete commercial alkaline product is to be formulated, that is to say ready to use, or else it may be desired that the additive is chemically stable on storage and soluble or emulsifiable in soda in concentrated solution containing 15 to 30% of sodium hydroxide, in case a complete commercial alkaline solution is formulated, that is to say ready to use.
  • One of the qualities desired for the additive is also to accelerate the action of the soda by calling on the surface-activity.
  • the additive and in particular the surfactant (s) it contains, an absence of foaming power and preferably good anti-foaming power to combat the foam caused by a bath enriched in soiling and subjected to strong turbulence.
  • surfactants used alone or as a mixture have been proposed to satisfy this latter constraint.
  • They are nonionic surfactants such as, for example, alkylphenols or oxyalkylene fatty alcohols obtained by reaction of a fatty alcohol with ethylene oxide and / or propylene oxide.
  • their terminal alcohol function is blocked, for example by an ether group, by reaction between this alcohol function and an ether of the chloromethyl-methyl-ether type or they are condensed by ketalization between the terminal alcohol functions of two of their molecules and a aldehyde function .
  • the aldehyde function of acetaldehyde which gives them better anti-foaming power and / or better chemical stability in cleaning baths.
  • An additional constraint for the additive, in particular for the surfactant that it contains, is therefore to be biodegradable.
  • the manager of a bottling line is attentive to the quality of cleaning characterized by clean, shiny bottles, well rinsed and free of bacteria, but he is also concerned with the consumption of soda evaluated per 100 necks, c is the quantity soda and additive or whole product consumed to effectively wash 100 bottles.
  • the additive by a precise choice of surfactants, allows an excellent "spin" of the bottles in a strongly alkaline medium (0.5 to 3% soda, 45 to 95 ° C) to limit the training of the bath by the bottles and also allows an excellent rinsing in the weakly alkaline or neutral rinsing baths which precede the final rinsing to avoid drips or droplets which, once dry, are unsightly.
  • a strongly alkaline medium 0.5 to 3% soda, 45 to 95 ° C
  • alkaline cleaning other than the bottle make it necessary to satisfy all or part of all of the constraints mentioned so far and are concerned with the present invention, whether it is alkaline hot cleaning or cold salted smoking rooms, cooking tunnels in fishmongers, fryers, cleaning or degreasing in metallurgy, or the alkaline baths of chemical peeling of fruits and vegetables.
  • Biodegradable surfactants such as heterosides resulting from the condensation of oses with alkanols, or alkylosides, with a long alkyl chain (chain comprising 8 to 10 carbon atoms for example) were certainly already known.
  • alkylosides although having good surfactant properties are on the one hand foaming, or even very foaming, in water and alkaline solutions and on the other hand do not make it possible to dissolve other surfactants therein.
  • active ingredients such as those used in particular for combating foam, which prohibits their use in the context of the present invention.
  • short-chain alkyllosides have very little or no foaming properties in water and alkaline solutions and are also capable of solubi read other surfactants which are normally insoluble therein, while retaining very good surfactant properties.
  • the additive for alkaline cleaning baths according to the invention is characterized in that it contains at least one surfactant of the alkyloside type, preferably n-alkyloside, with an alkyl chain having from 1 to 5 carbon atoms, preferably from 3 to 5 carbon atoms, attached by an ether function to a monomer or a polymer of ose having a unit of 5 or 6 carbon atoms.
  • at least one surfactant of the alkyloside type preferably n-alkyloside
  • an alkyl chain having from 1 to 5 carbon atoms, preferably from 3 to 5 carbon atoms, attached by an ether function to a monomer or a polymer of ose having a unit of 5 or 6 carbon atoms.
  • alkylosides have the property of lowering the surface tension of water, for example to 0.04 N / m for n-butylglucoside in aqueous solution at 1% by weight and of being very little or no wetting agents. not foaming, giving film-cleaning properties to cleaning baths. They make it possible to dissolve surfactants normally insoluble in water and / or in alkaline solutions and the presence of which in alkaline baths may be desired, for example to combat any foam.
  • the alkylosides of general formula (I) can be obtained for example by reaction of the alcohol corresponding to the alkyl chain C m H 2m + 1 with a monomer or a polymer of ose as defined above or a mixture of at at least two compounds of this type, in the presence of anhydrous hydrochloric acid.
  • Such a mixture can also comprise compounds having simultaneously, in their molecule, pentose units and hexose units if the selected alcohol is reacted with a mixture of these two oses in the form of monomers and / or polymers and / or copolymers; for simplicity, these compounds will also be in the following, called "compounds of general formula I".
  • the alkyl chain can be attached to a monomer or a sugar polymer, the alkylation and the polymerization being able to be carried out in a or in ⁇ according to the conformation of the carbohydrate and this reaction leads to general to a mixture. It is convenient to characterize the resulting product by the overall molecular ratio of alkyl chains / sugar units expressed in ose units (pentose or hexose).
  • This characterization can advantageously be carried out by means of nuclear magnetic resonance (NMR) of the proton which makes it possible to count the hydrogens of each species, that is to say those of the CH type of the alkyl chain, those of the CH type of the "sugar” chain and, depending on the solvent used D 2 O, CDCl 3 or other, possibly also the OH type hydrogens correspond to "sugars".
  • NMR nuclear magnetic resonance
  • the following table highlights the difference in foaming power between a short chain alkyl usable according to the invention, namely an n-butylglucoside having an overall alkyl / glucose unit ratio of 1 / 1.9 and a long chain alkyloside. namely an n-octylglucoside having an overall alkyl / glucose unit ratio of 1/1, prepared according to the method described above.
  • the additive for alkaline cleaning baths according to the invention may contain, in addition to one or more alkylosides of general formula (I), other compounds supplementing and / or improving the action of the alkaline component of the bath, in particular potash or preferably the soda chosen according to the particular conditions of the planned cleaning and / or the particular effects sought.
  • alkylosides of general formula (I) other compounds supplementing and / or improving the action of the alkaline component of the bath, in particular potash or preferably the soda chosen according to the particular conditions of the planned cleaning and / or the particular effects sought.
  • the additive according to the invention further comprises a sequestering agent of water hardness such as, for example, ethylenediaminetetracetic acid (EDTA), sodium gluconate or sodium tripolyphosphate.
  • EDTA ethylenediaminetetracetic acid
  • the proportion of sequestering agent (s) depends essentially on the hardness of the water.
  • surfactants derived from ethylene oxide and / or oxide of propylene such as in particular an oxyethylenated then oxypropylene fatty alcohol in which the terminal hydroxyl is free or blocked, for example by an ether or acetal function as indicated above, a condensate of ethylene oxide and of propylene oxide on the ethylenediamine or a short-chain amine type surfactant condensed with ethylene oxide and propylene oxide such as for example the product sold by the company BASF under the name LUTENSOL LSV.
  • the weight ratio of the surfactant (s) derived from ethylene oxide and / or propylene oxide to the alkyloside or to the alkylosides is from 1/1 to 1/30, preferably from 1 / 5 to 1/10.
  • the condensates of ethylene oxide and propylene oxide are not biodegradable and for the most part they are not soluble in water or in alkaline solutions.
  • the alkylosides of general formula (I) aid in their dissolution or their emulsion in 15-30% sodium hydroxide solutions.
  • the good biodegradability of the alkylsides makes it possible to obtain a mixture which overall, taking into account the proportions of each species and their own biodegradability, is biodegradable to around 90%, which, in the majority of cases, is sufficient with regard including legal requirements.
  • the additive according to the invention can also comprise, if necessary, other agents, in particular surface-active agents, the nature and proportion of which are compatible with the qualities sought for the additive.
  • agents in particular surface-active agents, the nature and proportion of which are compatible with the qualities sought for the additive.
  • products which are very soluble in concentrated soda and which increase the wetting power, such as surface-active agents of the imidazoline or phosphoric ester type.
  • the additive according to the invention is used to complete the alkaline cleaning baths, in particular based on potassium hydroxide or preferably soda, so that the total weight of alkyloside (s) is from 0.2 to 10%, preferably from 0.5 to 5% by weight of the alkaline agent.
  • a complete product for alkaline cleaning baths containing the alkaline agent and the constituents of the additive is produced.
  • the invention therefore further relates to a complete product for alkaline cleaning baths, characterized in that it comprises soda and / or potash in flakes or pearls and the constituents of the additive according to the invention in proportions such that the total weight of the alkylosides represents from 0.2 to 10%, preferably from 0.5 to 5% of the total weight of the alkaline agents, soda and / or potash.
  • the invention also relates to a complete product as defined above in which the soda and / or potash are in the form of an aqueous solution in which they have a concentration at least equal to that of the cleaning baths, preferably a concentration of 15 to 30% by weight.
  • the invention further relates to an alkaline pickling, degreasing, hot or cold cleaning or chemical peeling bath comprising the additive according to the invention or obtained by diluting the complete product according to the invention defined above.
  • the invention finally also relates to a bath for cleaning glass bottles comprising an alkaline solution, preferably sodium hydroxide, and the additive according to the invention or obtained by diluting the complete product according to the invention defined above.
  • an alkaline solution preferably sodium hydroxide
  • the mixture is a clear, yellow liquid.
  • An alkaline bath is then prepared by putting 2 parts of the above solution in 98 parts of city water at 20 ° hydrotimetric French. This bath has no foaming power. On the other hand, it is cloudy due to the hardness of the water in an alkaline medium.
  • the mixture is a clear brown liquid.
  • An alkaline bath is then prepared by putting 2 parts of the above solution in 98 parts of city water at 20 ° hydrotimetric French.
  • the bath obtained has no foaming power; furthermore, it is only very slightly cloudy, which is perfectly acceptable. However, this bath does not have anti-foaming power, which may be necessary in some cases.
  • the solution is clear and gives a stable emulsion at a rate of 3% in a 15% sodium hydroxide solution.
  • This solution has zero foaming power and good anti-foaming power when it is diluted to form a bath containing 1% soda, that is to say diluted with 15 times its volume of water.
  • the poor biodegradability of the compounds containing propylene oxide is largely compensated by the good biodegradability of the predominant surfactant compound, namely n-butylglucoside, which leads to a formulation having a biodegradability greater than or equal to 90%.
  • the formula has no foaming power and has good anti-foaming power.
  • the poor biodegradability of the compounds containing propylene oxide is largely compensated by the good biodegradability of the predominant compound, namely n-butylglucoside.
  • the solution is clear and gives a stable emulsion at a rate of 3% in 15% sodium hydroxide.
  • a solution is made comprising the same constituents, with the same proportions, as in Example 4, except that the quantity of water is reduced from 61 parts to 60.5 parts, and that 0 is added. , 5 part of a surfactant of the imidazoline type, such as the product sold by The Miranol Chemical Company Inc., under the name Miranol JEM.
  • the foaming power is 200 and the anti-foaming power is 320.
  • the foaming power is evaluated on 200 ml of a 1% soda and 0.15% additive solution, placed in a one-liter test tube, by manual stirring using a mixer consisting of a disc pierced with holes and an axis at the rate of 100 strokes / min for one minute, followed by the reading of the liquid + foam level.
  • Level 200 therefore corresponds to zero foam.
  • the antifoam power is evaluated by bubbling compressed air at a rate of 20 l / min through a sintered ball placed in 200 ml of a 1% soda solution, 0.15% additive and 0.2% alkylarylsulfonate, all placed in a water bath at 60 ° C.
  • Liquid + foam reading is evaluated after 5 min bubbling. When there is no additive with anti-foaming power, the foam reaches 1000 ml in three minutes and the bubbling must be stopped, when the anti-foaming is effective, the liquid + foam level stabilizes, and the more the lower, the better the defoamer.
  • Example 5 A formula identical to that of Example 5 is produced, except that the amount of water is reduced from 60.5 parts to 59 parts and the proportion of the surfactant of the imidazoline type is increased from 0.5 part to 2 parts.
  • the foaming power is 200 and the antifoaming power is 300 and this although the surfactant of the imidazoline type, relatively foaming product, is found in greater quantity.
  • the formula obtained is cloudy and insoluble at a rate of 3% in 15% sodium hydroxide. It cannot therefore be mixed with a 15% sodium hydroxide solution in order to constitute an additional reserve to supply the washers.
  • Example 7 A formula identical to that of Example 7 is produced, except that the amount of water is reduced from 76 parts to 71 parts and the amount of n-butylglucoside is increased from 5 to 10 parts.
  • the solution is clear and gives a stable emulsion at a rate of 3% in 15% sodium hydroxide, thereby showing, compared to Example 7, one of the advantages provided by a relatively large amount of n-butylglucoside.
  • the foaming power is 200 and the anti-foaming power is 450.
  • This example shows the influence of the amount of n-butylglucoside on the solubility of the formula in a sodium hydroxide solution.
  • Example 8 A formula identical to that of Example 8 is produced, except that the amount of water is reduced from 71 parts to 61 parts and the amount of n-butylglucoside is increased from 10 to 20 parts.
  • the product is clear and gives a stable emulsion at a rate of 3% in a 15% sodium hydroxide solution.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
EP19840402706 1983-12-23 1984-12-21 Zusatz für alkalische Reinigungsbäder, vollständiges, diesen Zusatz enthaltendes Produkt und dessen Verwendung Expired EP0148087B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8320715A FR2557134B1 (fr) 1983-12-23 1983-12-23 Additif pour bains de nettoyage alcalins, produit complet le contenant et utilisation
FR8320715 1983-12-23

Publications (3)

Publication Number Publication Date
EP0148087A2 true EP0148087A2 (de) 1985-07-10
EP0148087A3 EP0148087A3 (en) 1986-02-19
EP0148087B1 EP0148087B1 (de) 1988-09-21

Family

ID=9295522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840402706 Expired EP0148087B1 (de) 1983-12-23 1984-12-21 Zusatz für alkalische Reinigungsbäder, vollständiges, diesen Zusatz enthaltendes Produkt und dessen Verwendung

Country Status (3)

Country Link
EP (1) EP0148087B1 (de)
DE (1) DE3474159D1 (de)
FR (1) FR2557134B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282863A3 (de) * 1987-03-14 1990-06-13 Henkel Kommanditgesellschaft auf Aktien Flüssige, alkalische Reinigerkonzentrate
EP0396044A1 (de) * 1989-05-05 1990-11-07 Henkel Kommanditgesellschaft auf Aktien Mischung aus Alkylglucosiden und Alkoholen als Entschäumer
WO1996014374A1 (de) * 1994-11-02 1996-05-17 Henkel Kommanditgesellschaft Auf Aktien Oberflächenaktive mittel enthaltend solubilisatoren
WO1997038079A1 (en) * 1996-04-09 1997-10-16 Unilever N.V. Anti-etch bottle washing solution

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136844A2 (de) 1983-09-06 1985-04-10 Henkel Kommanditgesellschaft auf Aktien Glykoside enthaltende Reinigungsmittel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547828A (en) * 1968-09-03 1970-12-15 Rohm & Haas Alkyl oligosaccharides and their mixtures with alkyl glucosides and alkanols
US3839318A (en) * 1970-09-27 1974-10-01 Rohm & Haas Process for preparation of alkyl glucosides and alkyl oligosaccharides
CA1083911A (en) * 1976-12-13 1980-08-19 Thaddeus J. Kaniecki Liquid cleaning compositions and process therefor
US4230592A (en) * 1979-05-31 1980-10-28 Chemed Corporation Controlled foam detergent additive
GR76286B (de) * 1981-09-28 1984-08-04 Procter & Gamble

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136844A2 (de) 1983-09-06 1985-04-10 Henkel Kommanditgesellschaft auf Aktien Glykoside enthaltende Reinigungsmittel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282863A3 (de) * 1987-03-14 1990-06-13 Henkel Kommanditgesellschaft auf Aktien Flüssige, alkalische Reinigerkonzentrate
EP0396044A1 (de) * 1989-05-05 1990-11-07 Henkel Kommanditgesellschaft auf Aktien Mischung aus Alkylglucosiden und Alkoholen als Entschäumer
WO1990013345A1 (de) * 1989-05-05 1990-11-15 Henkel Kommanditgesellschaft Auf Aktien Mischung aus alkylglucosiden und alkoholen als entschäumer
WO1996014374A1 (de) * 1994-11-02 1996-05-17 Henkel Kommanditgesellschaft Auf Aktien Oberflächenaktive mittel enthaltend solubilisatoren
WO1997038079A1 (en) * 1996-04-09 1997-10-16 Unilever N.V. Anti-etch bottle washing solution

Also Published As

Publication number Publication date
EP0148087A3 (en) 1986-02-19
EP0148087B1 (de) 1988-09-21
DE3474159D1 (en) 1988-10-27
FR2557134B1 (fr) 1986-11-28
FR2557134A1 (fr) 1985-06-28

Similar Documents

Publication Publication Date Title
JP5438030B2 (ja) 気泡を強化した洗浄法および化学的特性
EP0781322B1 (de) Klarspüler für kunststoffgeschirr
EP2217691B1 (de) Säurereinigungsverfahren für die brauindustrie
JPH03504613A (ja) 洗剤用抑泡性アルキルポリグリコールエーテル（１）
CA2104468A1 (en) Mixture of at least two alkoxylated alcohols and its use as antifoam tenside additive in cleaning products for mechanical washing processes
US4477364A (en) Acidic glass cleaning composition
JP4568832B2 (ja) アルコキシレート混合物及び硬質表面の洗浄剤としてのその使用方法
AU746975B2 (en) Rinse aid for plasticware
FR2580664A1 (fr) Agent tensio-actif liquide biodegradable et son utilisation
WO1993014181A1 (en) Biodegradable aqueous filter cleaning composition comprising ethoxylated/propoxylated surfactant, carboxylic acid; and solvent
JP7468877B2 (ja) 洗浄剤組成物
EP2714876B1 (de) Neue verwendung von heptylpolyglycosiden zur auflösung von nicht ionischen tensiden in wässrigen sauren reinigungszusammensetzungen und wässrige saure reinigungszusammensetzungen damit
EP2588420B1 (de) Entkalkung von oxalaten mit säurezusammensetzungen
JPS58109599A (ja) 硬い表面の洗滌用の表面活性剤含有混合物
EP0148087B1 (de) Zusatz für alkalische Reinigungsbäder, vollständiges, diesen Zusatz enthaltendes Produkt und dessen Verwendung
JP2017119743A (ja) 食器洗い機用洗浄剤
US11680230B2 (en) Automatic dishwashing formulation with dispersant copolymer
EP0571245B1 (de) Verfahren zur Herstellung von Zusammensetzungen zum Entfeuchten oder Entfetten der Oberflächen von Festkörpern
US4613449A (en) Compositions for cleaning aluminum
EP3814464B1 (de) Verfahren zur reinigung von kunststoff mit dispergiertem copolymer
US6946432B2 (en) Anti-foaming preparation and use thereof
EP3411464B1 (de) Waschmittelzusammensetzungen zur reinigung in der kosmetischen und pharmazeutischen industrie
US5464484A (en) Oil splitting aluminum cleaner and method
US4247342A (en) Method and composition for removing ethylene glycol terephthalate oligomer deposits and dyestuff residue from textile dyeing equipment
JP2017119742A (ja) 食器洗い機用洗浄剤

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): BE DE GB NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE GB NL SE

17P Request for examination filed

Effective date: 19860423

17Q First examination report despatched

Effective date: 19861202

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE GB NL SE

REF Corresponds to:

Ref document number: 3474159

Country of ref document: DE

Date of ref document: 19881027

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: AKZO N.V.

Effective date: 19890621

NLR1 Nl: opposition has been filed with the epo

Opponent name: AKZO N.V.

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19900716

NLR2 Nl: decision of opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19921215

Year of fee payment: 9

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

Ref country code: SE

Payment date: 19921222

Year of fee payment: 9

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

Ref country code: NL

Payment date: 19921231

Year of fee payment: 9

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

Ref country code: GB

Effective date: 19931221

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

Ref country code: SE

Effective date: 19931222

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

Ref country code: NL

Effective date: 19940701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19931221

EUG Se: european patent has lapsed

Ref document number: 84402706.0

Effective date: 19940710

BECH Be: change of holder

Free format text: 970218 *CFPI INDUSTRIES

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

Ref country code: DE

Payment date: 20011212

Year of fee payment: 18

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

Ref country code: BE

Payment date: 20011227

Year of fee payment: 18

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

Ref country code: BE

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

Effective date: 20021231

BERE Be: lapsed

Owner name: S.A. *PENNGAR

Effective date: 20021231

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: 20030701