WO1997021797A1 - Adjuvant for a cleaning formulation and formulation comprising said adjuvant - Google Patents

Adjuvant for a cleaning formulation and formulation comprising said adjuvant Download PDF

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Publication number
WO1997021797A1
WO1997021797A1 PCT/EP1996/005367 EP9605367W WO9721797A1 WO 1997021797 A1 WO1997021797 A1 WO 1997021797A1 EP 9605367 W EP9605367 W EP 9605367W WO 9721797 A1 WO9721797 A1 WO 9721797A1
Authority
WO
WIPO (PCT)
Prior art keywords
adjuvant
cleaning
formulation
present
formulation according
Prior art date
Application number
PCT/EP1996/005367
Other languages
French (fr)
Inventor
Gijsbertus De Goederen
Remco E. Jonker
Norman Jason Pritchard
Original Assignee
Unilever N.V.
Unilever Plc
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=8220928&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1997021797(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Unilever N.V., Unilever Plc filed Critical Unilever N.V.
Priority to BR9611985A priority Critical patent/BR9611985A/en
Priority to EP96942311A priority patent/EP0866844B1/en
Priority to AU11746/97A priority patent/AU712192B2/en
Priority to CA 2237768 priority patent/CA2237768A1/en
Priority to DE69603506T priority patent/DE69603506T2/en
Publication of WO1997021797A1 publication Critical patent/WO1997021797A1/en

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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino 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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3947—Liquid 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3245—Aminoacids

Definitions

  • the present invention relates to an adjuvant suitable for a cleaning formulation for example an adjuvant suitable for cleaning-in-place and spray-cleaning formulations, and to a cleaning formulation comprising said adjuvant.
  • CIP Cleaning-in-place
  • EDTA EDTA is environmentally suspect, i.e. it is not readily biodegradable and can cause heavy metal transitions.
  • MGDA methylglycine di-acetic acid
  • An object of the present invention is to provide an improved adjuvant for cleaning formulations.
  • an adjuvant according to claim 1 According to a first aspect of the present invention there is provided an adjuvant according to claim 1.
  • the adjuvant according to the present invention is preferably used in combination with a caustic soda based cleaning in place formulation, in order to optimize cleaning in place.

Abstract

The invention relates to an adjuvant suitable for cleaning-in-place cleaning formulations, said adjuvant comprising a calcium sequestrant, an oxygen releasing agent, and/or an iron sequestrant.

Description

ADJUVANT FOR A CLEANING FORMULATION AND
FORMULATION COMPRISING SAID ADJUVANT Field of the invention
The present invention relates to an adjuvant suitable for a cleaning formulation for example an adjuvant suitable for cleaning-in-place and spray-cleaning formulations, and to a cleaning formulation comprising said adjuvant.
Background of the invention
Cleaning-in-place, CIP, is a fully automatic process to clean and disinfect the inner surfaces of processing equipment. It involves the circulation and recirculation of rinse water, cleaning and disinfecting solutions through the processing equipment, without dismantling the equipment. The passage of liquid with high velocity generates a mechanical abrasion effect and helps to dislodge the soil deposits from the equipment. Most cleaning operations in the dairy industry utilize the CIP technique.
Currently existing cleaning-in-place formulations, particularly cleaning formulations based on caustic soda, comprise the chelating agent EDTA. However EDTA is environmentally suspect, i.e. it is not readily biodegradable and can cause heavy metal transitions.
In order to obviate the environmental problem associated with these cleaning formulations, MGDA (methylglycine di-acetic acid) has been developed as a replacement for EDTA. However MGDA containing cleaning formulations, often leave areas of visual discoloration on the equipment, for instance taking the form of greasy spots and fatty areas. These can be a breeding ground for micro-biological organisms, whereby contamination of milk flowing through the processing equipment, for example, is possible. An object of the present invention is to provide an improved adjuvant for cleaning formulations.
Definition of the invention
According to a first aspect of the present invention there is provided an adjuvant according to claim 1.
According to a second aspect of the present invention there is provided a cleaning formulation suitable for cleaning-in-place techniques according to claim 6.
Detailed description of the invention
Tests which have been carried out by the inventors, have shown that the adjuvant of the invention has an improved cleaning effect, when present in a suitable cleaning formulation.
The adjuvant according to the present invention is preferably used in combination with a caustic soda based cleaning in place formulation, in order to optimize cleaning in place.
Preferred formulation features are set out in the claims 6-16, which features yield optimum cleaning results.
The invention will now be described by way of the following experimental results which were obtained on using the cleaning formulation according to the present invention to clean milk pasteurizing equipment in the laboratory.
34 tests were carried out, which are summarized in the table.
Figure imgf000005_0001

Claims

1. Adjuvant suitable for cleaning-in-place cleaning formulations, said adjuvant comprising a calcium sequestrant and an additive selected from the group consisting of an oxygen releasing agent, an iron sequestrant and mixtures thereof.
2. Adjuvant according to claim 1, wherein the calcium sequestrant is MGDA.
3. Adjuvant according to claim 1 or 2, wherein the oxygen releasing agent is hydrogen peroxide.
4. Adjuvant according to one of the previous claims, wherein the iron sequestrant is gluconic acid or soluble salts thereof.
5. Adjuvant according to claim 4, wherein the soluble salt of gluconic acid is sodium gluconate.
6. Formulation suitable for cleaning-in-place, comprising an adjuvant according to one of the previous claims.
7. Formulation according to claim 6, being based on caustic soda.
8. Formulation according to claims 6 or 7, wherein MGDA is present in a weight percentage of between 0.20 to 1.0%.
9. Formulation according to claim 8, wherein the MGDA is present in a weight percentage of 0.30%.
10. Formulation according to one or more of the claims 6-9, wherein hydrogen peroxide is present in a weight percentage of between 0.10 to 0.50%.
11. Formulation according to claim 10, wherein the hydrogen peroxide is present in a weight percentage of 0.20%.
12. Formulation according to one or more of the claims 6- 11, wherein sodium gluconate is present in a weight percentage between 0.01 to 10.0%.
13. Formulation according to claim 12, wherein sodium gluconate is present in a weight percentage between 0.10 and 1.0%.
14. Formulation according to any of the claims 6-13, wherein caustic soda is present in a weight percentage between 0.10 to 1.50%.
15. Formulation according to claim 14, wherein caustic soda is present in a weight percentage of 0.50%.
16. Formulation according to one or more of the claims 6- 15. said formulation being a cleaning-in-place formulation.
17. Use of a formulation according to one or more of the claims 6-16 for cleaning in place.
18. Use of an adjuvant according to any of the claims 1-3, in a cleaning formulation according to one or more of the claims 6-16.
PCT/EP1996/005367 1995-12-11 1996-11-27 Adjuvant for a cleaning formulation and formulation comprising said adjuvant WO1997021797A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR9611985A BR9611985A (en) 1995-12-11 1996-11-27 Suitable adjuvant for cleaning formulations formulation suitable for cleaning-in-place and uses of adjuvant and formulation
EP96942311A EP0866844B1 (en) 1995-12-11 1996-11-27 Cleaning in place
AU11746/97A AU712192B2 (en) 1995-12-11 1996-11-27 A cleaning formulation for cleaning-in-space
CA 2237768 CA2237768A1 (en) 1995-12-11 1996-11-27 Adjuvant for a cleaning formulation and formulation comprising said adjuvant
DE69603506T DE69603506T2 (en) 1995-12-11 1996-11-27 CLEANING A COMPLETE SYSTEM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP95203436.1 1995-12-11
EP95203436 1995-12-11

Publications (1)

Publication Number Publication Date
WO1997021797A1 true WO1997021797A1 (en) 1997-06-19

Family

ID=8220928

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/005367 WO1997021797A1 (en) 1995-12-11 1996-11-27 Adjuvant for a cleaning formulation and formulation comprising said adjuvant

Country Status (7)

Country Link
EP (1) EP0866844B1 (en)
AU (1) AU712192B2 (en)
BR (1) BR9611985A (en)
DE (1) DE69603506T2 (en)
ES (1) ES2136443T3 (en)
WO (1) WO1997021797A1 (en)
ZA (1) ZA9610192B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003022980A1 (en) * 2001-09-10 2003-03-20 Johnsondiversey, Inc. Cleaning composition and method for using the same
EP1475074A1 (en) * 2003-03-25 2004-11-10 L'oreal Verwendung von Polycarbonsäuren und deren Salzen als Komplexbildner in oxidierenden Zusammensetzungen zum Färben, Entfärben und zur dauerhaften Verformung von Keratinfasern
JP2017002250A (en) * 2015-06-15 2017-01-05 株式会社Adeka CIP cleaning method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291085A (en) * 1941-01-23 1942-07-28 Milk Plant Specialties Corp Treatment of washing water
GB2016540A (en) * 1978-03-14 1979-09-26 Rhone & Poulenc Ind >New sequestering agent for detergent composition
GB2079775A (en) * 1980-07-02 1982-01-27 Pyrene Chemical Services Ltd Cleaning composition and method
US5114607A (en) * 1990-08-08 1992-05-19 Betz Laboratories, Inc. Low foaming alkaline cleaner comprising a surfactant mixture of an EO-PO-EO block copolymer and a PO-ZO-PO block copolymer
DE4240695A1 (en) * 1992-12-03 1994-06-09 Basf Ag Iminodiacetic acid derivs. for use as complexing agents or builders - in aq. cleaning compsns. for the food and beverage industries, have high calcium binding capacity and can be formulated without organic solvent
DE4319935A1 (en) * 1993-06-16 1994-12-22 Basf Ag Use of glycine-N, N-diacetic acid derivatives as complexing agents for alkaline earth and heavy metal ions

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291085A (en) * 1941-01-23 1942-07-28 Milk Plant Specialties Corp Treatment of washing water
GB2016540A (en) * 1978-03-14 1979-09-26 Rhone & Poulenc Ind >New sequestering agent for detergent composition
GB2079775A (en) * 1980-07-02 1982-01-27 Pyrene Chemical Services Ltd Cleaning composition and method
US5114607A (en) * 1990-08-08 1992-05-19 Betz Laboratories, Inc. Low foaming alkaline cleaner comprising a surfactant mixture of an EO-PO-EO block copolymer and a PO-ZO-PO block copolymer
DE4240695A1 (en) * 1992-12-03 1994-06-09 Basf Ag Iminodiacetic acid derivs. for use as complexing agents or builders - in aq. cleaning compsns. for the food and beverage industries, have high calcium binding capacity and can be formulated without organic solvent
DE4319935A1 (en) * 1993-06-16 1994-12-22 Basf Ag Use of glycine-N, N-diacetic acid derivatives as complexing agents for alkaline earth and heavy metal ions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003022980A1 (en) * 2001-09-10 2003-03-20 Johnsondiversey, Inc. Cleaning composition and method for using the same
US6546940B1 (en) 2001-09-10 2003-04-15 Johnsondiversey, Inc. Cleaning composition and method for using the same
EP1475074A1 (en) * 2003-03-25 2004-11-10 L'oreal Verwendung von Polycarbonsäuren und deren Salzen als Komplexbildner in oxidierenden Zusammensetzungen zum Färben, Entfärben und zur dauerhaften Verformung von Keratinfasern
JP2017002250A (en) * 2015-06-15 2017-01-05 株式会社Adeka CIP cleaning method

Also Published As

Publication number Publication date
BR9611985A (en) 1999-02-17
DE69603506D1 (en) 1999-09-02
ZA9610192B (en) 1998-06-04
AU712192B2 (en) 1999-10-28
DE69603506T2 (en) 2000-01-13
AU1174697A (en) 1997-07-03
EP0866844A1 (en) 1998-09-30
ES2136443T3 (en) 1999-11-16
EP0866844B1 (en) 1999-07-28

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