EP0121286B1 - Reinigungsmittel auf Basis von aktivem Chlor und Alkali - Google Patents

Reinigungsmittel auf Basis von aktivem Chlor und Alkali Download PDF

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Publication number
EP0121286B1
EP0121286B1 EP19840200461 EP84200461A EP0121286B1 EP 0121286 B1 EP0121286 B1 EP 0121286B1 EP 19840200461 EP19840200461 EP 19840200461 EP 84200461 A EP84200461 A EP 84200461A EP 0121286 B1 EP0121286 B1 EP 0121286B1
Authority
EP
European Patent Office
Prior art keywords
active chlorine
alkali
cleaning agent
agent based
cleaning
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
Application number
EP19840200461
Other languages
English (en)
French (fr)
Other versions
EP0121286A2 (de
EP0121286A3 (en
Inventor
Nicolaas A. I. Van Paassen
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.)
Kao Corp
Original Assignee
Stamicarbon BV
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
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Publication of EP0121286A2 publication Critical patent/EP0121286A2/de
Publication of EP0121286A3 publication Critical patent/EP0121286A3/en
Application granted granted Critical
Publication of EP0121286B1 publication Critical patent/EP0121286B1/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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/06—Ether- or thioether carboxylic 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents
    • C11D3/3956—Liquid compositions

Definitions

  • This invention relates to a cleaning agent based on active chlorine and alkali.
  • cleaning agents are used in practice for cleaning pipes and ducts and the like, for instance of apparatuses for milk processing.
  • the cleaning occurs at 40-45°C and accordingly, the mixture should be preheated at a suitable temperature.
  • no surfactants other than wetting agents are incorporated in such mixtures, because otherwise too much foaming would occur, particularly at the elevated temperatures and the intensive mechanical action, which accordingly would influence the cleaning action rather in a disadvantageous than in an advantageous way.
  • Such cleaning agents should be well discerned from the so-called thickened bleach compositions, such as disclosed in GB-A-2,076,010 and EP-A-0,072,600 which contain much more hypochlorite solution than alkali (vide page 2, line 25 of EP-A-0072600) and wherein the added surfactant serves for thickening the composition.
  • the present compositions are intended for industrial use and contain alkali metal hydroxide in an amount of at least 50% of the bleaching agent.
  • this invention relates to cleaning agents on the basis of active chlorine and alkali which are characterized by the fact that they also contain a minor amount of a compound of the formula wherein M is sodium or potassium and n is a number having an average value of 1-10.
  • the present surfactants are known per se and belong to a group of compounds which is already known for a long time for its useful properties. However, within this group of compounds the C 8 H 17 -compounds have always been considered to constitute more or less a borderline case, and compounds derived from larger hydrophobic residues were always preferred. This appears not only from the above-mentioned GB-A-2,076,010 which, although stating that the hydrophobic residue may be a.o. a C 6 - 20 alkyl residue, states a preference for C 12 ⁇ C 13 , and from EP-A-0,072,600 which mentions as hydrophobic group a.o.
  • the alkyl group c a H 17 may be a straight chain or branched group, for instance n-octyl or 2-ethylhexyl.
  • the free acid into the composition containing the active chlorine and alkali, so that the desired salt is formed in situ.
  • other salts such as the ammonium salt or organic ammonium and amine salts, but of course in actual practice one uses a salt of the ethercarboxylic acid with the same anion as in the alkali metal hydroxide component of the base mixture.
  • the other components in the system are the usual ones for this kind of compositions.
  • the alkali is KOH or NaOH and the concentration thereof can be varied within relatively wide limits, generally between 20 to 250 g per liter. A suitable concentration is in the order of 80-120 g per liter.
  • the active chlorine in the system can be derived from various usual compounds. Chlorine-containing bleaching lye is a cheap product, and therefore this is generally used. However, a compound like trichlorocyanuric acid or chloramine T can also be used as chlorine-producing agents. Usually, the system contains about 3-6% of active chlorine, preferably about 4.5%. As mentioned already, the amount of alkali in such systems is at least 50% of the amount of bleaching agent.
  • the amount of surfactant to be used according to the present invention can best be expressed in the weight ratio between surfactant and active chlorine.
  • This weight ratio generally can vary from 1:10 to 1:3. Thus it is suitable to use 0.65% of the present surfactant with the above-mentioned preferred amount of 4.5% of active chlorine.
  • ethercarboxylic potassium salts had the formula octyl-O ⁇ (C 2 H 4 ) n ⁇ CH 2 COOK.
  • a foaming test was carried out by dissolving 10 grams of each product in 1 liter of tap water (German hardness about 20°), shaking 50 ml of this solution vigorously by hand in a shaking cylinder of 100 ml, and reading the foam volume after 1 minute. In this experiment a foam volume of 15 ml or less is considered satisfactory.
  • the results of these experiments have been rendered in the following table.
  • Examples IX and XI were prepared again, but this time with NaOH. These compositions are named Examples IXa and Xla. They were also subjected to the above foaming test, and this at 12°C and 20°C. The results have been rendered hereinbelow, and for the sake of clarity the corresponding results with KOH from the above table have been reiterated here.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (3)

1. Reinigungsmittel auf Basis von aktiv Chlor abgebendem Bleichmittel und Alkalimetalhydroxyd in einer Menge von wenigstens 50% des Bleichmittels, dadurch gekennzeichnet, dass es eine kleinere Menge einer wenig schaumenden Verbindung der Formel C8H17O―(C2H4O)nCH2COOM, worin M Natrium oder Kalium und n eine Zahl mit einem Mittelwert von 1-10 ist, enthält.
2. Reinigungsmittel nach Anspruch 1, dadurch gekennzeichnet, dass das Gewichtsverhältnis zwischen der wenig schaumenden Verbindung und aktivem Chlor 1:10 bis 1:3 beträgt.
3. Reinigungsmittel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass es 3-6% aktiv Chlor in der Form einer Bleichlauge enthält.
EP19840200461 1983-03-31 1984-03-28 Reinigungsmittel auf Basis von aktivem Chlor und Alkali Expired EP0121286B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8301168 1983-03-31
NL8301168A NL8301168A (nl) 1983-03-31 1983-03-31 Reinigingsmiddel op basis van actief chloor en alkali.

Publications (3)

Publication Number Publication Date
EP0121286A2 EP0121286A2 (de) 1984-10-10
EP0121286A3 EP0121286A3 (en) 1986-01-22
EP0121286B1 true EP0121286B1 (de) 1989-07-19

Family

ID=19841642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840200461 Expired EP0121286B1 (de) 1983-03-31 1984-03-28 Reinigungsmittel auf Basis von aktivem Chlor und Alkali

Country Status (5)

Country Link
EP (1) EP0121286B1 (de)
CA (1) CA1222427A (de)
DE (1) DE3479037D1 (de)
DK (1) DK160103C (de)
NL (1) NL8301168A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670372A (en) * 1984-10-15 1987-06-02 Petrarch Systems, Inc. Process of developing radiation imaged photoresist with alkaline developer solution including a carboxylated surfactant
CA1281578C (en) * 1985-07-18 1991-03-19 Susan A. Ferguson High contrast photoresist developer with enhanced sensitivity
US7037884B2 (en) 1994-02-23 2006-05-02 Ecolab Inc. Alkaline cleaners based on alcohol ethoxy carboxylates
WO1995023202A1 (en) * 1994-02-23 1995-08-31 Ecolab Inc. Alkaline cleaners based on alcohol ethoxy carboxylates
DE19926627A1 (de) * 1999-06-11 2000-12-14 Henkel Kgaa Bleich- und Desinfektionsmittel
DE10006997C2 (de) 2000-02-16 2002-11-07 Federal Mogul Friedberg Gmbh Laufwerkdichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE528604A (de) * 1953-05-06
GB1475064A (en) * 1973-04-18 1977-06-01 Chem Y Fabriek Van Chem Produk Detergent compositions
GB2076010B (en) * 1980-05-13 1984-05-16 Sandoz Products Ltd Bleach composition
NL8103829A (nl) * 1981-08-15 1983-03-01 Chem Y Waterig bleekmiddel met reinigende werking.

Also Published As

Publication number Publication date
CA1222427A (en) 1987-06-02
EP0121286A2 (de) 1984-10-10
DK172184D0 (da) 1984-03-29
DK160103C (da) 1991-06-10
DK160103B (da) 1991-01-28
DE3479037D1 (en) 1989-08-24
EP0121286A3 (en) 1986-01-22
DK172184A (da) 1984-10-01
NL8301168A (nl) 1984-10-16

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