WO2011104421A1 - Degreasing composition - Google Patents

Degreasing composition Download PDF

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Publication number
WO2011104421A1
WO2011104421A1 PCT/FI2010/050154 FI2010050154W WO2011104421A1 WO 2011104421 A1 WO2011104421 A1 WO 2011104421A1 FI 2010050154 W FI2010050154 W FI 2010050154W WO 2011104421 A1 WO2011104421 A1 WO 2011104421A1
Authority
WO
WIPO (PCT)
Prior art keywords
vegetable oil
composition according
oil
degreasing composition
isopropanol
Prior art date
Application number
PCT/FI2010/050154
Other languages
French (fr)
Inventor
Harri Repo
Original Assignee
Dinoto Oy
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 Dinoto Oy filed Critical Dinoto Oy
Priority to PCT/FI2010/050154 priority Critical patent/WO2011104421A1/en
Publication of WO2011104421A1 publication Critical patent/WO2011104421A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
    • 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
    • C11D7/40—Products in which the composition is not well defined
    • C11D7/44—Vegetable products
    • 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
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5022—Organic solvents containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/06—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
    • 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
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/261—Alcohols; Phenols
    • 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
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/266—Esters or carbonates

Definitions

  • the invention relates to a degreasing composition
  • a degreasing composition comprising a solvent that is capable of dissolving grease and oil.
  • Such degreasing compositions are used for removing oil or grease that is sticky, persistent or has gathered dirt, from various objects.
  • Degreasing compositions of prior art are based on organic solvents which are harmful and evaporate easily to the environment. If a lubri- cated object, such as a transmission chain, has been treated with a degreasing composition, the object has to be relubricated. By oversight, parts of the chain may remain non-relubricated, wherein this impedes the functioning of the chain. In high-speed chains, such as motorcycle chains, this may even cause damage to the chain.
  • Publication US 2008029740 A1 discloses a solvent composition containing ethyl lactate and isopropanol, intended for degreasing.
  • a biodegradable lubricant containing ethyl lactate, vegetable oil and antioxidant, is known from publication US 2003040444 A1.
  • the aim of the invention is to present a degreasing composition without the above-mentioned drawbacks.
  • the composition is primarily characterized in that it comprises
  • Ethyl lactate an ester formed from lactic acid and ethanol, is a safe and biodegradable principal component of the degreasing composition.
  • This compound is capable of dissolving or dispersing many greases and oils, including lubricants based on a vegetable oil.
  • the composition also provides the cleaned object with protective lubrication, because the composition contains vegetable oil.
  • protective lubrication minimises the amount of the composition's physical property of the cleaning composition.
  • the cleaning composition washes off dirt and old oil or grease and leaves a thin film of vegetable oil on the cleaned surface. Consequently, the product is a cleaning and simultaneously lubri- eating cleaning composition, thanks to the lubricating additive (vegetable oil) contained in it. However, it is not intended for replacing the actual lubrication of the cleaned object.
  • the vegetable oil is dissolved or dispersed (in the form of a fine emul- sion) in the ethyl lactate phase of the product by means of isopropanol which is used as an auxiliary agent.
  • ethyl lactate is water-soluble, it has a high boiling point (154 degrees), it is biodegradable, and it has FDA approval; in other words it is safe to use.
  • the vegetable oil that provides the protective lubrication is preferably turnip rapeseed oil or rapeseed oil. By means of antioxidants, it is possible to promote the stability of the vegetable oil component of the product.
  • the vegetable oil component is first dissolved in isopropanol, after which the isopropanol is dissolved in ethyl lactate.
  • the amount of isopropanol is at least 1 ,5-fold compared with that of vegetable oil, calculated on weight proportion basis. If the amount of isopropanol is double or more, compared to the amount of vegetable oil, the vegetable oil will dissolve in the ethyl lactate phase and also remain dissolved for longer periods of time. With lower contents of isopropanol, a fine dispersion is obtained, or it is formed at the latest when the composition is shaken before use.
  • the even distribution of the vegetable oil component in the ethyl lactate guarantees an even protective lubrication on the treated surfaces.
  • aromatic agent 0.1 to 2 wt-%
  • the purpose of the aromatic agent (such as lemon) is primarily to provide the product with a pleasant odour, and the purpose of the colouring agent is to increase the visibility of the product in connection with use, because ethyl lactate is colourless.
  • Example 2 cleaning composition for a motorcycle chain:
  • aromatic agent 0.1 to 2 wt-%
  • compositions according to the above examples may be atomizable or sprayable products packed in containers, or they can be applied onto the object in other ways.
  • the vegetable oil component may also be a natural oil that contains primarily triglycerides of fatty acids, other than turnip rapeseed oil or rapeseed oil, for example sunflower oil, soybean, oil or olive oil.
  • vegetable oil also refers to a mixture of two or more different vegetable oils.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)
  • Detergent Compositions (AREA)

Abstract

A degreasing composition comprises - ethyl lactate functioning as a solvent, to which has been mixed - turnip rapeseed oil or rapeseed oil functioning as a protective lubricating component, and - isopropanol functioning as a dispersion aid/solvent aid, whose amount is at least 1.5-fold compared with the amount of the turnip rapeseed oil or rapeseed oil.

Description

Degreasing composition
The invention relates to a degreasing composition comprising a solvent that is capable of dissolving grease and oil.
Such degreasing compositions are used for removing oil or grease that is sticky, persistent or has gathered dirt, from various objects. Degreasing compositions of prior art are based on organic solvents which are harmful and evaporate easily to the environment. If a lubri- cated object, such as a transmission chain, has been treated with a degreasing composition, the object has to be relubricated. By oversight, parts of the chain may remain non-relubricated, wherein this impedes the functioning of the chain. In high-speed chains, such as motorcycle chains, this may even cause damage to the chain.
Publication US 2008029740 A1 discloses a solvent composition containing ethyl lactate and isopropanol, intended for degreasing. A biodegradable lubricant containing ethyl lactate, vegetable oil and antioxidant, is known from publication US 2003040444 A1.
The aim of the invention is to present a degreasing composition without the above-mentioned drawbacks. To achieve this aim, the composition is primarily characterized in that it comprises
- ethyl lactate functioning as a solvent, to which has been mixed - vegetable oil functioning as a protective lubricant component, and
- isopropanol functioning as a dispersion aid/solvent aid, whose amount is at least 1.5-fold, preferably at least 2-fold compared with the amount of vegetable oil. Ethyl lactate, an ester formed from lactic acid and ethanol, is a safe and biodegradable principal component of the degreasing composition. This compound is capable of dissolving or dispersing many greases and oils, including lubricants based on a vegetable oil. In addition to its cleaning power, the composition also provides the cleaned object with protective lubrication, because the composition contains vegetable oil. Thus, for example if some part of a motorcycle chain or another transmission chain remains unlubricated after cleaning, it still comprises protective lubrication, thanks to the component introduced by the cleaning composition. The cleaning composition washes off dirt and old oil or grease and leaves a thin film of vegetable oil on the cleaned surface. Consequently, the product is a cleaning and simultaneously lubri- eating cleaning composition, thanks to the lubricating additive (vegetable oil) contained in it. However, it is not intended for replacing the actual lubrication of the cleaned object.
The vegetable oil is dissolved or dispersed (in the form of a fine emul- sion) in the ethyl lactate phase of the product by means of isopropanol which is used as an auxiliary agent.
Tests have shown that the combination of ethyl lactate and isopropanol makes the vegetable oil distribute particularly evenly in the phase of the washing solvent, either in a fully dissolved form or in the form of a very fine emulsion, depending on the proportion of isopropanol and vegetable oil. Furthermore, ethyl lactate is water-soluble, it has a high boiling point (154 degrees), it is biodegradable, and it has FDA approval; in other words it is safe to use.
The vegetable oil that provides the protective lubrication is preferably turnip rapeseed oil or rapeseed oil. By means of antioxidants, it is possible to promote the stability of the vegetable oil component of the product.
In the following, the invention will be described in more detail by means of some example compositions.
The vegetable oil component is first dissolved in isopropanol, after which the isopropanol is dissolved in ethyl lactate. The amount of isopropanol is at least 1 ,5-fold compared with that of vegetable oil, calculated on weight proportion basis. If the amount of isopropanol is double or more, compared to the amount of vegetable oil, the vegetable oil will dissolve in the ethyl lactate phase and also remain dissolved for longer periods of time. With lower contents of isopropanol, a fine dispersion is obtained, or it is formed at the latest when the composition is shaken before use. The even distribution of the vegetable oil component in the ethyl lactate guarantees an even protective lubrication on the treated surfaces.
Example 1. general cleaning composition:
ethyl lactate 40 to 95 wt-%
vegetable oil 1 to 20 wt-%
isopropanol 2 to 40 wt-%
antioxidant 0.01 to 1.0 wt-%
aromatic agent 0.1 to 2 wt-%
colouring agent 0.01 to 0.02 wt-%
The purpose of the aromatic agent (such as lemon) is primarily to provide the product with a pleasant odour, and the purpose of the colouring agent is to increase the visibility of the product in connection with use, because ethyl lactate is colourless.
Example 2, cleaning composition for a motorcycle chain:
ethyl lactate 69.6 to 84.8 wt-%
vegetable oil 5 to 10 wt-%
isopropanol 10 to 20 wt-%, and
antioxidant 0.2 to 0.4 wt-%
aromatic agent 0.1 to 2 wt-%
colouring agent 0.01 to 0.02 wt-% The compositions according to the above examples may be atomizable or sprayable products packed in containers, or they can be applied onto the object in other ways.
Being polarized oils, turnip rapeseed oil or rapeseed oil adhere well to metal surfaces, when they are used as protective lubricants in the degreasing composition according to the invention. Furthermore, they adhere well if the composition is sprayed or atomized onto the object to be cleaned. The vegetable oil component may also be a natural oil that contains primarily triglycerides of fatty acids, other than turnip rapeseed oil or rapeseed oil, for example sunflower oil, soybean, oil or olive oil. The term "vegetable oil" also refers to a mixture of two or more different vegetable oils.

Claims

Claims:
1. A degreasing composition based on a solvent that dissolves grease and oil, characterized in that it comprises
- ethyl lactate functioning as a solvent, to which is mixed
- vegetable oil functioning as a protective lubricant component, and
- isopropanol functioning as a dispersion aid/solvent aid, whose amount is at least 1.5-fold compared with the amount of vegetable oil.
2. The degreasing composition according to claim 1 , characterized in that the amount of isopropanol is at least 2-fold compared with the amount of vegetable oil.
3. The degreasing composition according to claim 1 or 2, character- ized in that the vegetable oil is dissolved in ethyl lactate.
4. The degreasing composition according to claim 1 or 2, characterized in that it comprises:
- ethyl lactate 40 to 95 wt-%
- vegetable oil 1 to 20 wt-%
- isopropanol 2 to 40 wt-%, and
- antioxidant 0.01 to 1.0 wt-%.
5. The degreasing composition according to claim 3, characterized in that it comprises
- ethyl lactate 69.6 to 84.8 wt-%
- vegetable oil 5 to 10 wt-%
- isopropanol 10 to 20 wt-%, and
- antioxidant 0.2 to 0.4 wt-%.
6. The degreasing composition according to any of the preceding claims, characterized in that it comprises an aromatic agent and/or a colouring agent.
7. The degreasing composition according to any of the preceding claims, characterized in that the vegetable oil is turnip rapeseed oil or rapeseed oil.
8. The degreasing composition according to any of the preceding claims, characterized in that it is packed in a container with means for atomizing or spraying the composition onto an object.
9. The use of the degreasing composition according to any of the preceding claims for removing oil and/or grease from an object and for protective lubrication of the object.
10. The use of the degreasing composition according to any of the preceding claims for removing oil and/or grease from a transmission chain and for protective lubrication of the transmission chain.
PCT/FI2010/050154 2010-02-26 2010-02-26 Degreasing composition WO2011104421A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FI2010/050154 WO2011104421A1 (en) 2010-02-26 2010-02-26 Degreasing composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2010/050154 WO2011104421A1 (en) 2010-02-26 2010-02-26 Degreasing composition

Publications (1)

Publication Number Publication Date
WO2011104421A1 true WO2011104421A1 (en) 2011-09-01

Family

ID=44506159

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2010/050154 WO2011104421A1 (en) 2010-02-26 2010-02-26 Degreasing composition

Country Status (1)

Country Link
WO (1) WO2011104421A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020111284A1 (en) * 1997-05-23 2002-08-15 Huntsman Petrochemical Corporation Degreasing compositions
US20030040444A1 (en) * 2001-07-13 2003-02-27 Renewable Lubricants Biodegradable penetrating lubricant
US20050031399A1 (en) * 2003-08-06 2005-02-10 Barbieri S.N.C. Di Barbieri Nadia & Kalman Bicycle chain cleaner fitted on a spray can of cleaning and lubricating solution
US20080029740A1 (en) * 2006-08-01 2008-02-07 Rathin Datta Composition of lactate esters with alcohols with low odor and enhanced performance
FI120976B (en) * 2008-08-28 2010-05-31 Harri Repo Degreaser

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020111284A1 (en) * 1997-05-23 2002-08-15 Huntsman Petrochemical Corporation Degreasing compositions
US20030040444A1 (en) * 2001-07-13 2003-02-27 Renewable Lubricants Biodegradable penetrating lubricant
US20050031399A1 (en) * 2003-08-06 2005-02-10 Barbieri S.N.C. Di Barbieri Nadia & Kalman Bicycle chain cleaner fitted on a spray can of cleaning and lubricating solution
US20080029740A1 (en) * 2006-08-01 2008-02-07 Rathin Datta Composition of lactate esters with alcohols with low odor and enhanced performance
FI120976B (en) * 2008-08-28 2010-05-31 Harri Repo Degreaser

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